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lg-support
| Author | SHA1 | Date | |
|---|---|---|---|
|
0dda6641b2 |
@@ -370,8 +370,7 @@
|
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"pages": [
|
||||
"en/enterprise/features/traces",
|
||||
"en/enterprise/features/webhook-streaming",
|
||||
"en/enterprise/features/hallucination-guardrail",
|
||||
"en/enterprise/features/flow-hitl-management"
|
||||
"en/enterprise/features/hallucination-guardrail"
|
||||
]
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},
|
||||
{
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@@ -824,8 +823,7 @@
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"pages": [
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||||
"pt-BR/enterprise/features/traces",
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"pt-BR/enterprise/features/webhook-streaming",
|
||||
"pt-BR/enterprise/features/hallucination-guardrail",
|
||||
"pt-BR/enterprise/features/flow-hitl-management"
|
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"pt-BR/enterprise/features/hallucination-guardrail"
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]
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},
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{
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@@ -1289,8 +1287,7 @@
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"pages": [
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"ko/enterprise/features/traces",
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"ko/enterprise/features/webhook-streaming",
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"ko/enterprise/features/hallucination-guardrail",
|
||||
"ko/enterprise/features/flow-hitl-management"
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"ko/enterprise/features/hallucination-guardrail"
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]
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},
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{
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@@ -1,563 +0,0 @@
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---
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title: "Flow HITL Management"
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||||
description: "Enterprise-grade human review for Flows with email-first notifications, routing rules, and auto-response capabilities"
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icon: "users-gear"
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mode: "wide"
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---
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||||
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<Note>
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Flow HITL Management features require the `@human_feedback` decorator, available in **CrewAI version 1.8.0 or higher**. These features apply specifically to **Flows**, not Crews.
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</Note>
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||||
|
||||
CrewAI Enterprise provides a comprehensive Human-in-the-Loop (HITL) management system for Flows that transforms AI workflows into collaborative human-AI processes. The platform uses an **email-first architecture** that enables anyone with an email address to respond to review requests—no platform account required.
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## Overview
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<CardGroup cols={3}>
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<Card title="Email-First Design" icon="envelope">
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Responders can reply directly to notification emails to provide feedback
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</Card>
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<Card title="Flexible Routing" icon="route">
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Route requests to specific emails based on method patterns or flow state
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</Card>
|
||||
<Card title="Auto-Response" icon="clock">
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Configure automatic fallback responses when no human replies in time
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</Card>
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||||
</CardGroup>
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||||
|
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### Key Benefits
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|
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- **Simple mental model**: Email addresses are universal; no need to manage platform users or roles
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- **External responders**: Anyone with an email can respond, even non-platform users
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- **Dynamic assignment**: Pull assignee email directly from flow state (e.g., `sales_rep_email`)
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- **Reduced configuration**: Fewer settings to configure, faster time to value
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- **Email as primary channel**: Most users prefer responding via email over logging into a dashboard
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|
||||
## Setting Up Human Review Points in Flows
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|
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Configure human review checkpoints within your Flows using the `@human_feedback` decorator. When execution reaches a review point, the system pauses, notifies the assignee via email, and waits for a response.
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|
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```python
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from crewai.flow.flow import Flow, start, listen
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from crewai.flow.human_feedback import human_feedback, HumanFeedbackResult
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class ContentApprovalFlow(Flow):
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@start()
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def generate_content(self):
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# AI generates content
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return "Generated marketing copy for Q1 campaign..."
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|
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@listen(generate_content)
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@human_feedback(
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message="Please review this content for brand compliance:",
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emit=["approved", "rejected", "needs_revision"],
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)
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def review_content(self, content):
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return content
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@listen("approved")
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def publish_content(self, result: HumanFeedbackResult):
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print(f"Publishing approved content. Reviewer notes: {result.feedback}")
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@listen("rejected")
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def archive_content(self, result: HumanFeedbackResult):
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print(f"Content rejected. Reason: {result.feedback}")
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@listen("needs_revision")
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def revise_content(self, result: HumanFeedbackResult):
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print(f"Revision requested: {result.feedback}")
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```
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For complete implementation details, see the [Human Feedback in Flows](/en/learn/human-feedback-in-flows) guide.
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### Decorator Parameters
|
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| Parameter | Type | Description |
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||||
|-----------|------|-------------|
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| `message` | `str` | The message displayed to the human reviewer |
|
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| `emit` | `list[str]` | Valid response options (displayed as buttons in UI) |
|
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|
||||
## Platform Configuration
|
||||
|
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Access HITL configuration from: **Deployment → Settings → Human in the Loop Configuration**
|
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|
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<Frame>
|
||||
<img src="/images/enterprise/hitl-settings-overview.png" alt="HITL Configuration Settings" />
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</Frame>
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||||
|
||||
### Email Notifications
|
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|
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Toggle to enable or disable email notifications for HITL requests.
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| Setting | Default | Description |
|
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|---------|---------|-------------|
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| Email Notifications | Enabled | Send emails when feedback is requested |
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|
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<Note>
|
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When disabled, responders must use the dashboard UI or you must configure webhooks for custom notification systems.
|
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</Note>
|
||||
|
||||
### SLA Target
|
||||
|
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Set a target response time for tracking and metrics purposes.
|
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|
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| Setting | Description |
|
||||
|---------|-------------|
|
||||
| SLA Target (minutes) | Target response time. Used for dashboard metrics and SLA tracking |
|
||||
|
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Leave empty to disable SLA tracking.
|
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|
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## Email Notifications & Responses
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The HITL system uses an email-first architecture where responders can reply directly to notification emails.
|
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|
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### How Email Responses Work
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<Steps>
|
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<Step title="Notification Sent">
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When a HITL request is created, an email is sent to the assigned responder with the review content and context.
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</Step>
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<Step title="Reply-To Address">
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The email includes a special reply-to address with a signed token for authentication.
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</Step>
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<Step title="User Replies">
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The responder simply replies to the email with their feedback—no login required.
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</Step>
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<Step title="Token Validation">
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The platform receives the reply, verifies the signed token, and matches the sender email.
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</Step>
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<Step title="Flow Resumes">
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The feedback is recorded and the flow continues with the human's input.
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</Step>
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</Steps>
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|
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### Response Format
|
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Responders can reply with:
|
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|
||||
- **Emit option**: If the reply matches an `emit` option (e.g., "approved"), it's used directly
|
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- **Free-form text**: Any text response is passed to the flow as feedback
|
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- **Plain text**: The first line of the reply body is used as feedback
|
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### Confirmation Emails
|
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|
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After processing a reply, the responder receives a confirmation email indicating whether the feedback was successfully submitted or if an error occurred.
|
||||
|
||||
### Email Token Security
|
||||
|
||||
- Tokens are cryptographically signed for security
|
||||
- Tokens expire after 7 days
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- Sender email must match the token's authorized email
|
||||
- Confirmation/error emails are sent after processing
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||||
|
||||
## Routing Rules
|
||||
|
||||
Route HITL requests to specific email addresses based on method patterns.
|
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|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-settings-routing-rules.png" alt="HITL Routing Rules Configuration" />
|
||||
</Frame>
|
||||
|
||||
### Rule Structure
|
||||
|
||||
```json
|
||||
{
|
||||
"name": "Approvals to Finance",
|
||||
"match": {
|
||||
"method_name": "approve_*"
|
||||
},
|
||||
"assign_to_email": "finance@company.com",
|
||||
"assign_from_input": "manager_email"
|
||||
}
|
||||
```
|
||||
|
||||
### Matching Patterns
|
||||
|
||||
| Pattern | Description | Example Match |
|
||||
|---------|-------------|---------------|
|
||||
| `approve_*` | Wildcard (any chars) | `approve_payment`, `approve_vendor` |
|
||||
| `review_?` | Single char | `review_a`, `review_1` |
|
||||
| `validate_payment` | Exact match | `validate_payment` only |
|
||||
|
||||
### Assignment Priority
|
||||
|
||||
1. **Dynamic assignment** (`assign_from_input`): If configured, pulls email from flow state
|
||||
2. **Static email** (`assign_to_email`): Falls back to configured email
|
||||
3. **Deployment creator**: If no rule matches, the deployment creator's email is used
|
||||
|
||||
### Dynamic Assignment Example
|
||||
|
||||
If your flow state contains `{"sales_rep_email": "alice@company.com"}`, configure:
|
||||
|
||||
```json
|
||||
{
|
||||
"name": "Route to Sales Rep",
|
||||
"match": {
|
||||
"method_name": "review_*"
|
||||
},
|
||||
"assign_from_input": "sales_rep_email"
|
||||
}
|
||||
```
|
||||
|
||||
The request will be assigned to `alice@company.com` automatically.
|
||||
|
||||
<Tip>
|
||||
**Use Case**: Pull the assignee from your CRM, database, or previous flow step to dynamically route reviews to the right person.
|
||||
</Tip>
|
||||
|
||||
## Auto-Response
|
||||
|
||||
Automatically respond to HITL requests if no human responds within a timeout. This ensures flows don't hang indefinitely.
|
||||
|
||||
### Configuration
|
||||
|
||||
| Setting | Description |
|
||||
|---------|-------------|
|
||||
| Enabled | Toggle to enable auto-response |
|
||||
| Timeout (minutes) | Time to wait before auto-responding |
|
||||
| Default Outcome | The response value (must match an `emit` option) |
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-settings-auto-respond.png" alt="HITL Auto-Response Configuration" />
|
||||
</Frame>
|
||||
|
||||
### Use Cases
|
||||
|
||||
- **SLA compliance**: Ensure flows don't hang indefinitely
|
||||
- **Default approval**: Auto-approve low-risk requests after timeout
|
||||
- **Graceful degradation**: Continue with a safe default when reviewers are unavailable
|
||||
|
||||
<Warning>
|
||||
Use auto-response carefully. Only enable it for non-critical reviews where a default response is acceptable.
|
||||
</Warning>
|
||||
|
||||
## Review Process
|
||||
|
||||
### Dashboard Interface
|
||||
|
||||
The HITL review interface provides a clean, focused experience for reviewers:
|
||||
|
||||
- **Markdown Rendering**: Rich formatting for review content with syntax highlighting
|
||||
- **Context Panel**: View flow state, execution history, and related information
|
||||
- **Feedback Input**: Provide detailed feedback and comments with your decision
|
||||
- **Quick Actions**: One-click emit option buttons with optional comments
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-list-pending-feedbacks.png" alt="HITL Pending Requests List" />
|
||||
</Frame>
|
||||
|
||||
### Response Methods
|
||||
|
||||
Reviewers can respond via three channels:
|
||||
|
||||
| Method | Description |
|
||||
|--------|-------------|
|
||||
| **Email Reply** | Reply directly to the notification email |
|
||||
| **Dashboard** | Use the Enterprise dashboard UI |
|
||||
| **API/Webhook** | Programmatic response via API |
|
||||
|
||||
### History & Audit Trail
|
||||
|
||||
Every HITL interaction is tracked with a complete timeline:
|
||||
|
||||
- Decision history (approve/reject/revise)
|
||||
- Reviewer identity and timestamp
|
||||
- Feedback and comments provided
|
||||
- Response method (email/dashboard/API)
|
||||
- Response time metrics
|
||||
|
||||
## Analytics & Monitoring
|
||||
|
||||
Track HITL performance with comprehensive analytics.
|
||||
|
||||
### Performance Dashboard
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-metrics.png" alt="HITL Metrics Dashboard" />
|
||||
</Frame>
|
||||
|
||||
<CardGroup cols={2}>
|
||||
<Card title="Response Times" icon="stopwatch">
|
||||
Monitor average and median response times by reviewer or flow.
|
||||
</Card>
|
||||
<Card title="Volume Trends" icon="chart-bar">
|
||||
Analyze review volume patterns to optimize team capacity.
|
||||
</Card>
|
||||
<Card title="Decision Distribution" icon="chart-pie">
|
||||
View approval/rejection rates across different review types.
|
||||
</Card>
|
||||
<Card title="SLA Tracking" icon="chart-line">
|
||||
Track percentage of reviews completed within SLA targets.
|
||||
</Card>
|
||||
</CardGroup>
|
||||
|
||||
### Audit & Compliance
|
||||
|
||||
Enterprise-ready audit capabilities for regulatory requirements:
|
||||
|
||||
- Complete decision history with timestamps
|
||||
- Reviewer identity verification
|
||||
- Immutable audit logs
|
||||
- Export capabilities for compliance reporting
|
||||
|
||||
## Common Use Cases
|
||||
|
||||
<AccordionGroup>
|
||||
<Accordion title="Security Reviews" icon="shield-halved">
|
||||
**Use Case**: Internal security questionnaire automation with human validation
|
||||
|
||||
- AI generates responses to security questionnaires
|
||||
- Security team reviews and validates accuracy via email
|
||||
- Approved responses are compiled into final submission
|
||||
- Full audit trail for compliance
|
||||
</Accordion>
|
||||
|
||||
<Accordion title="Content Approval" icon="file-lines">
|
||||
**Use Case**: Marketing content requiring legal/brand review
|
||||
|
||||
- AI generates marketing copy or social media content
|
||||
- Route to brand team email for voice/tone review
|
||||
- Automatic publishing upon approval
|
||||
</Accordion>
|
||||
|
||||
<Accordion title="Financial Approvals" icon="money-bill">
|
||||
**Use Case**: Expense reports, contract terms, budget allocations
|
||||
|
||||
- AI pre-processes and categorizes financial requests
|
||||
- Route based on amount thresholds using dynamic assignment
|
||||
- Maintain complete audit trail for financial compliance
|
||||
</Accordion>
|
||||
|
||||
<Accordion title="Dynamic Assignment from CRM" icon="database">
|
||||
**Use Case**: Route reviews to account owners from your CRM
|
||||
|
||||
- Flow fetches account owner email from CRM
|
||||
- Store email in flow state (e.g., `account_owner_email`)
|
||||
- Use `assign_from_input` to route to the right person automatically
|
||||
</Accordion>
|
||||
|
||||
<Accordion title="Quality Assurance" icon="magnifying-glass">
|
||||
**Use Case**: AI output validation before customer delivery
|
||||
|
||||
- AI generates customer-facing content or responses
|
||||
- QA team reviews via email notification
|
||||
- Feedback loops improve AI performance over time
|
||||
</Accordion>
|
||||
</AccordionGroup>
|
||||
|
||||
## Webhooks API
|
||||
|
||||
When your Flows pause for human feedback, you can configure webhooks to send request data to your own application. This enables:
|
||||
|
||||
- Building custom approval UIs
|
||||
- Integrating with internal tools (Jira, ServiceNow, custom dashboards)
|
||||
- Routing approvals to third-party systems
|
||||
- Mobile app notifications
|
||||
- Automated decision systems
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-settings-webhook.png" alt="HITL Webhook Configuration" />
|
||||
</Frame>
|
||||
|
||||
### Configuring Webhooks
|
||||
|
||||
<Steps>
|
||||
<Step title="Navigate to Settings">
|
||||
Go to your **Deployment** → **Settings** → **Human in the Loop**
|
||||
</Step>
|
||||
<Step title="Expand Webhooks Section">
|
||||
Click to expand the **Webhooks** configuration
|
||||
</Step>
|
||||
<Step title="Add Your Webhook URL">
|
||||
Enter your webhook URL (must be HTTPS in production)
|
||||
</Step>
|
||||
<Step title="Save Configuration">
|
||||
Click **Save Configuration** to activate
|
||||
</Step>
|
||||
</Steps>
|
||||
|
||||
You can configure multiple webhooks. Each active webhook receives all HITL events.
|
||||
|
||||
### Webhook Events
|
||||
|
||||
Your endpoint will receive HTTP POST requests for these events:
|
||||
|
||||
| Event Type | When Triggered |
|
||||
|------------|----------------|
|
||||
| `new_request` | A flow pauses and requests human feedback |
|
||||
|
||||
### Webhook Payload
|
||||
|
||||
All webhooks receive a JSON payload with this structure:
|
||||
|
||||
```json
|
||||
{
|
||||
"event": "new_request",
|
||||
"request": {
|
||||
"id": "550e8400-e29b-41d4-a716-446655440000",
|
||||
"flow_id": "flow_abc123",
|
||||
"method_name": "review_article",
|
||||
"message": "Please review this article for publication.",
|
||||
"emit_options": ["approved", "rejected", "request_changes"],
|
||||
"state": {
|
||||
"article_id": 12345,
|
||||
"author": "john@example.com",
|
||||
"category": "technology"
|
||||
},
|
||||
"metadata": {},
|
||||
"created_at": "2026-01-14T12:00:00Z"
|
||||
},
|
||||
"deployment": {
|
||||
"id": 456,
|
||||
"name": "Content Review Flow",
|
||||
"organization_id": 789
|
||||
},
|
||||
"callback_url": "https://api.crewai.com/...",
|
||||
"assigned_to_email": "reviewer@company.com"
|
||||
}
|
||||
```
|
||||
|
||||
### Responding to Requests
|
||||
|
||||
To submit feedback, **POST to the `callback_url`** included in the webhook payload.
|
||||
|
||||
```http
|
||||
POST {callback_url}
|
||||
Content-Type: application/json
|
||||
|
||||
{
|
||||
"feedback": "Approved. Great article!",
|
||||
"source": "my_custom_app"
|
||||
}
|
||||
```
|
||||
|
||||
### Security
|
||||
|
||||
<Info>
|
||||
All webhook requests are cryptographically signed using HMAC-SHA256 to ensure authenticity and prevent tampering.
|
||||
</Info>
|
||||
|
||||
#### Webhook Security
|
||||
|
||||
- **HMAC-SHA256 signatures**: Every webhook includes a cryptographic signature
|
||||
- **Per-webhook secrets**: Each webhook has its own unique signing secret
|
||||
- **Encrypted at rest**: Signing secrets are encrypted in our database
|
||||
- **Timestamp verification**: Prevents replay attacks
|
||||
|
||||
#### Signature Headers
|
||||
|
||||
Each webhook request includes these headers:
|
||||
|
||||
| Header | Description |
|
||||
|--------|-------------|
|
||||
| `X-Signature` | HMAC-SHA256 signature: `sha256=<hex_digest>` |
|
||||
| `X-Timestamp` | Unix timestamp when the request was signed |
|
||||
|
||||
#### Verification
|
||||
|
||||
Verify by computing:
|
||||
|
||||
```python
|
||||
import hmac
|
||||
import hashlib
|
||||
|
||||
expected = hmac.new(
|
||||
signing_secret.encode(),
|
||||
f"{timestamp}.{payload}".encode(),
|
||||
hashlib.sha256
|
||||
).hexdigest()
|
||||
|
||||
if hmac.compare_digest(expected, signature):
|
||||
# Valid signature
|
||||
```
|
||||
|
||||
### Error Handling
|
||||
|
||||
Your webhook endpoint should return a 2xx status code to acknowledge receipt:
|
||||
|
||||
| Your Response | Our Behavior |
|
||||
|---------------|--------------|
|
||||
| 2xx | Webhook delivered successfully |
|
||||
| 4xx/5xx | Logged as failed, no retry |
|
||||
| Timeout (30s) | Logged as failed, no retry |
|
||||
|
||||
## Security & RBAC
|
||||
|
||||
### Dashboard Access
|
||||
|
||||
HITL access is controlled at the deployment level:
|
||||
|
||||
| Permission | Capability |
|
||||
|------------|------------|
|
||||
| `manage_human_feedback` | Configure HITL settings, view all requests |
|
||||
| `respond_to_human_feedback` | Respond to requests, view assigned requests |
|
||||
|
||||
### Email Response Authorization
|
||||
|
||||
For email replies:
|
||||
1. The reply-to token encodes the authorized email
|
||||
2. Sender email must match the token's email
|
||||
3. Token must not be expired (7-day default)
|
||||
4. Request must still be pending
|
||||
|
||||
### Audit Trail
|
||||
|
||||
All HITL actions are logged:
|
||||
- Request creation
|
||||
- Assignment changes
|
||||
- Response submission (with source: dashboard/email/API)
|
||||
- Flow resume status
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### Emails Not Sending
|
||||
|
||||
1. Check "Email Notifications" is enabled in configuration
|
||||
2. Verify routing rules match the method name
|
||||
3. Verify assignee email is valid
|
||||
4. Check deployment creator fallback if no routing rules match
|
||||
|
||||
### Email Replies Not Processing
|
||||
|
||||
1. Check token hasn't expired (7-day default)
|
||||
2. Verify sender email matches assigned email
|
||||
3. Ensure request is still pending (not already responded)
|
||||
|
||||
### Flow Not Resuming
|
||||
|
||||
1. Check request status in dashboard
|
||||
2. Verify callback URL is accessible
|
||||
3. Ensure deployment is still running
|
||||
|
||||
## Best Practices
|
||||
|
||||
<Tip>
|
||||
**Start Simple**: Begin with email notifications to deployment creator, then add routing rules as your workflows mature.
|
||||
</Tip>
|
||||
|
||||
1. **Use Dynamic Assignment**: Pull assignee emails from your flow state for flexible routing.
|
||||
|
||||
2. **Configure Auto-Response**: Set up a fallback for non-critical reviews to prevent flows from hanging.
|
||||
|
||||
3. **Monitor Response Times**: Use analytics to identify bottlenecks and optimize your review process.
|
||||
|
||||
4. **Keep Review Messages Clear**: Write clear, actionable messages in the `@human_feedback` decorator.
|
||||
|
||||
5. **Test Email Flow**: Send test requests to verify email delivery before going to production.
|
||||
|
||||
## Related Resources
|
||||
|
||||
<CardGroup cols={2}>
|
||||
<Card title="Human Feedback in Flows" icon="code" href="/en/learn/human-feedback-in-flows">
|
||||
Implementation guide for the `@human_feedback` decorator
|
||||
</Card>
|
||||
<Card title="Flow HITL Workflow Guide" icon="route" href="/en/enterprise/guides/human-in-the-loop">
|
||||
Step-by-step guide for setting up HITL workflows
|
||||
</Card>
|
||||
<Card title="RBAC Configuration" icon="shield-check" href="/en/enterprise/features/rbac">
|
||||
Configure role-based access control for your organization
|
||||
</Card>
|
||||
<Card title="Webhook Streaming" icon="bolt" href="/en/enterprise/features/webhook-streaming">
|
||||
Set up real-time event notifications
|
||||
</Card>
|
||||
</CardGroup>
|
||||
@@ -5,54 +5,9 @@ icon: "user-check"
|
||||
mode: "wide"
|
||||
---
|
||||
|
||||
Human-In-The-Loop (HITL) is a powerful approach that combines artificial intelligence with human expertise to enhance decision-making and improve task outcomes. This guide shows you how to implement HITL within CrewAI Enterprise.
|
||||
Human-In-The-Loop (HITL) is a powerful approach that combines artificial intelligence with human expertise to enhance decision-making and improve task outcomes. This guide shows you how to implement HITL within CrewAI.
|
||||
|
||||
## HITL Approaches in CrewAI
|
||||
|
||||
CrewAI offers two approaches for implementing human-in-the-loop workflows:
|
||||
|
||||
| Approach | Best For | Version |
|
||||
|----------|----------|---------|
|
||||
| **Flow-based** (`@human_feedback` decorator) | Production with Enterprise UI, email-first workflows, full platform features | **1.8.0+** |
|
||||
| **Webhook-based** | Custom integrations, external systems (Slack, Teams, etc.), legacy setups | All versions |
|
||||
|
||||
## Flow-Based HITL with Enterprise Platform
|
||||
|
||||
<Note>
|
||||
The `@human_feedback` decorator requires **CrewAI version 1.8.0 or higher**.
|
||||
</Note>
|
||||
|
||||
When using the `@human_feedback` decorator in your Flows, CrewAI Enterprise provides an **email-first HITL system** that enables anyone with an email address to respond to review requests:
|
||||
|
||||
<CardGroup cols={2}>
|
||||
<Card title="Email-First Design" icon="envelope">
|
||||
Responders receive email notifications and can reply directly—no login required.
|
||||
</Card>
|
||||
<Card title="Dashboard Review" icon="desktop">
|
||||
Review and respond to HITL requests in the Enterprise dashboard when preferred.
|
||||
</Card>
|
||||
<Card title="Flexible Routing" icon="route">
|
||||
Route requests to specific emails based on method patterns or pull from flow state.
|
||||
</Card>
|
||||
<Card title="Auto-Response" icon="clock">
|
||||
Configure automatic fallback responses when no human replies within the timeout.
|
||||
</Card>
|
||||
</CardGroup>
|
||||
|
||||
### Key Benefits
|
||||
|
||||
- **External responders**: Anyone with an email can respond, even non-platform users
|
||||
- **Dynamic assignment**: Pull assignee email from flow state (e.g., `account_owner_email`)
|
||||
- **Simple configuration**: Email-based routing is easier to set up than user/role management
|
||||
- **Deployment creator fallback**: If no routing rule matches, the deployment creator is notified
|
||||
|
||||
<Tip>
|
||||
For implementation details on the `@human_feedback` decorator, see the [Human Feedback in Flows](/en/learn/human-feedback-in-flows) guide.
|
||||
</Tip>
|
||||
|
||||
## Setting Up Webhook-Based HITL Workflows
|
||||
|
||||
For custom integrations with external systems like Slack, Microsoft Teams, or your own applications, you can use the webhook-based approach:
|
||||
## Setting Up HITL Workflows
|
||||
|
||||
<Steps>
|
||||
<Step title="Configure Your Task">
|
||||
@@ -144,14 +99,3 @@ HITL workflows are particularly valuable for:
|
||||
- Sensitive or high-stakes operations
|
||||
- Creative tasks requiring human judgment
|
||||
- Compliance and regulatory reviews
|
||||
|
||||
## Learn More
|
||||
|
||||
<CardGroup cols={2}>
|
||||
<Card title="Flow HITL Management" icon="users-gear" href="/en/enterprise/features/flow-hitl-management">
|
||||
Explore the full Enterprise Flow HITL platform capabilities including email notifications, routing rules, auto-response, and analytics.
|
||||
</Card>
|
||||
<Card title="Human Feedback in Flows" icon="code" href="/en/learn/human-feedback-in-flows">
|
||||
Implementation guide for the `@human_feedback` decorator in your Flows.
|
||||
</Card>
|
||||
</CardGroup>
|
||||
|
||||
@@ -151,9 +151,3 @@ HITL workflows are particularly valuable for:
|
||||
- Sensitive or high-stakes operations
|
||||
- Creative tasks requiring human judgment
|
||||
- Compliance and regulatory reviews
|
||||
|
||||
## Enterprise Features
|
||||
|
||||
<Card title="Flow HITL Management Platform" icon="users-gear" href="/en/enterprise/features/flow-hitl-management">
|
||||
CrewAI Enterprise provides a comprehensive HITL management system for Flows with in-platform review, responder assignment, permissions, escalation policies, SLA management, dynamic routing, and full analytics. [Learn more →](/en/enterprise/features/flow-hitl-management)
|
||||
</Card>
|
||||
|
||||
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|
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|
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@@ -1,563 +0,0 @@
|
||||
---
|
||||
title: "Flow HITL 관리"
|
||||
description: "이메일 우선 알림, 라우팅 규칙 및 자동 응답 기능을 갖춘 Flow용 엔터프라이즈급 인간 검토"
|
||||
icon: "users-gear"
|
||||
mode: "wide"
|
||||
---
|
||||
|
||||
<Note>
|
||||
Flow HITL 관리 기능은 `@human_feedback` 데코레이터가 필요하며, **CrewAI 버전 1.8.0 이상**에서 사용할 수 있습니다. 이 기능은 Crew가 아닌 **Flow**에만 적용됩니다.
|
||||
</Note>
|
||||
|
||||
CrewAI Enterprise는 AI 워크플로우를 협업적인 인간-AI 프로세스로 전환하는 Flow용 포괄적인 Human-in-the-Loop(HITL) 관리 시스템을 제공합니다. 플랫폼은 **이메일 우선 아키텍처**를 사용하여 이메일 주소가 있는 누구나 플랫폼 계정 없이도 검토 요청에 응답할 수 있습니다.
|
||||
|
||||
## 개요
|
||||
|
||||
<CardGroup cols={3}>
|
||||
<Card title="이메일 우선 설계" icon="envelope">
|
||||
응답자가 알림 이메일에 직접 회신하여 피드백 제공 가능
|
||||
</Card>
|
||||
<Card title="유연한 라우팅" icon="route">
|
||||
메서드 패턴 또는 Flow 상태에 따라 특정 이메일로 요청 라우팅
|
||||
</Card>
|
||||
<Card title="자동 응답" icon="clock">
|
||||
시간 내에 인간이 응답하지 않을 경우 자동 대체 응답 구성
|
||||
</Card>
|
||||
</CardGroup>
|
||||
|
||||
### 주요 이점
|
||||
|
||||
- **간단한 멘탈 모델**: 이메일 주소는 보편적이며 플랫폼 사용자나 역할을 관리할 필요 없음
|
||||
- **외부 응답자**: 플랫폼 사용자가 아니어도 이메일이 있는 누구나 응답 가능
|
||||
- **동적 할당**: Flow 상태에서 직접 담당자 이메일 가져오기 (예: `sales_rep_email`)
|
||||
- **간소화된 구성**: 설정할 항목이 적어 더 빠르게 가치 실현
|
||||
- **이메일이 주요 채널**: 대부분의 사용자는 대시보드 로그인보다 이메일로 응답하는 것을 선호
|
||||
|
||||
## Flow에서 인간 검토 포인트 설정
|
||||
|
||||
`@human_feedback` 데코레이터를 사용하여 Flow 내에 인간 검토 체크포인트를 구성합니다. 실행이 검토 포인트에 도달하면 시스템이 일시 중지되고, 담당자에게 이메일로 알리며, 응답을 기다립니다.
|
||||
|
||||
```python
|
||||
from crewai.flow.flow import Flow, start, listen
|
||||
from crewai.flow.human_feedback import human_feedback, HumanFeedbackResult
|
||||
|
||||
class ContentApprovalFlow(Flow):
|
||||
@start()
|
||||
def generate_content(self):
|
||||
# AI가 콘텐츠 생성
|
||||
return "Q1 캠페인용 마케팅 카피 생성..."
|
||||
|
||||
@listen(generate_content)
|
||||
@human_feedback(
|
||||
message="브랜드 준수를 위해 이 콘텐츠를 검토해 주세요:",
|
||||
emit=["approved", "rejected", "needs_revision"],
|
||||
)
|
||||
def review_content(self, content):
|
||||
return content
|
||||
|
||||
@listen("approved")
|
||||
def publish_content(self, result: HumanFeedbackResult):
|
||||
print(f"승인된 콘텐츠 게시 중. 검토자 노트: {result.feedback}")
|
||||
|
||||
@listen("rejected")
|
||||
def archive_content(self, result: HumanFeedbackResult):
|
||||
print(f"콘텐츠 거부됨. 사유: {result.feedback}")
|
||||
|
||||
@listen("needs_revision")
|
||||
def revise_content(self, result: HumanFeedbackResult):
|
||||
print(f"수정 요청: {result.feedback}")
|
||||
```
|
||||
|
||||
완전한 구현 세부 사항은 [Flow에서 인간 피드백](/ko/learn/human-feedback-in-flows) 가이드를 참조하세요.
|
||||
|
||||
### 데코레이터 파라미터
|
||||
|
||||
| 파라미터 | 유형 | 설명 |
|
||||
|---------|------|------|
|
||||
| `message` | `str` | 인간 검토자에게 표시되는 메시지 |
|
||||
| `emit` | `list[str]` | 유효한 응답 옵션 (UI에서 버튼으로 표시) |
|
||||
|
||||
## 플랫폼 구성
|
||||
|
||||
HITL 구성에 접근: **배포** → **설정** → **Human in the Loop 구성**
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-settings-overview.png" alt="HITL 구성 설정" />
|
||||
</Frame>
|
||||
|
||||
### 이메일 알림
|
||||
|
||||
HITL 요청에 대한 이메일 알림을 활성화하거나 비활성화하는 토글입니다.
|
||||
|
||||
| 설정 | 기본값 | 설명 |
|
||||
|-----|-------|------|
|
||||
| 이메일 알림 | 활성화됨 | 피드백 요청 시 이메일 전송 |
|
||||
|
||||
<Note>
|
||||
비활성화되면 응답자는 대시보드 UI를 사용하거나 커스텀 알림 시스템을 위해 webhook을 구성해야 합니다.
|
||||
</Note>
|
||||
|
||||
### SLA 목표
|
||||
|
||||
추적 및 메트릭 목적으로 목표 응답 시간을 설정합니다.
|
||||
|
||||
| 설정 | 설명 |
|
||||
|-----|------|
|
||||
| SLA 목표 (분) | 목표 응답 시간. 대시보드 메트릭 및 SLA 추적에 사용 |
|
||||
|
||||
SLA 추적을 비활성화하려면 비워 두세요.
|
||||
|
||||
## 이메일 알림 및 응답
|
||||
|
||||
HITL 시스템은 응답자가 알림 이메일에 직접 회신할 수 있는 이메일 우선 아키텍처를 사용합니다.
|
||||
|
||||
### 이메일 응답 작동 방식
|
||||
|
||||
<Steps>
|
||||
<Step title="알림 전송">
|
||||
HITL 요청이 생성되면 검토 콘텐츠와 컨텍스트가 포함된 이메일이 할당된 응답자에게 전송됩니다.
|
||||
</Step>
|
||||
<Step title="Reply-To 주소">
|
||||
이메일에는 인증을 위한 서명된 토큰이 포함된 특별한 reply-to 주소가 있습니다.
|
||||
</Step>
|
||||
<Step title="사용자 회신">
|
||||
응답자는 이메일에 피드백으로 회신하면 됩니다—로그인 필요 없음.
|
||||
</Step>
|
||||
<Step title="토큰 검증">
|
||||
플랫폼이 회신을 받고, 서명된 토큰을 확인하고, 발신자 이메일을 매칭합니다.
|
||||
</Step>
|
||||
<Step title="Flow 재개">
|
||||
피드백이 기록되고 인간의 입력으로 Flow가 계속됩니다.
|
||||
</Step>
|
||||
</Steps>
|
||||
|
||||
### 응답 형식
|
||||
|
||||
응답자는 다음과 같이 회신할 수 있습니다:
|
||||
|
||||
- **Emit 옵션**: 회신이 `emit` 옵션과 일치하면 (예: "approved") 직접 사용됨
|
||||
- **자유 형식 텍스트**: 모든 텍스트 응답이 피드백으로 Flow에 전달됨
|
||||
- **일반 텍스트**: 회신 본문의 첫 번째 줄이 피드백으로 사용됨
|
||||
|
||||
### 확인 이메일
|
||||
|
||||
회신을 처리한 후 응답자는 피드백이 성공적으로 제출되었는지 또는 오류가 발생했는지 나타내는 확인 이메일을 받습니다.
|
||||
|
||||
### 이메일 토큰 보안
|
||||
|
||||
- 토큰은 보안을 위해 암호화 서명됨
|
||||
- 토큰은 7일 후 만료됨
|
||||
- 발신자 이메일은 토큰의 인증된 이메일과 일치해야 함
|
||||
- 처리 후 확인/오류 이메일 전송됨
|
||||
|
||||
## 라우팅 규칙
|
||||
|
||||
메서드 패턴에 따라 HITL 요청을 특정 이메일 주소로 라우팅합니다.
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-settings-routing-rules.png" alt="HITL 라우팅 규칙 구성" />
|
||||
</Frame>
|
||||
|
||||
### 규칙 구조
|
||||
|
||||
```json
|
||||
{
|
||||
"name": "재무팀으로 승인",
|
||||
"match": {
|
||||
"method_name": "approve_*"
|
||||
},
|
||||
"assign_to_email": "finance@company.com",
|
||||
"assign_from_input": "manager_email"
|
||||
}
|
||||
```
|
||||
|
||||
### 매칭 패턴
|
||||
|
||||
| 패턴 | 설명 | 매칭 예시 |
|
||||
|-----|------|----------|
|
||||
| `approve_*` | 와일드카드 (모든 문자) | `approve_payment`, `approve_vendor` |
|
||||
| `review_?` | 단일 문자 | `review_a`, `review_1` |
|
||||
| `validate_payment` | 정확히 일치 | `validate_payment`만 |
|
||||
|
||||
### 할당 우선순위
|
||||
|
||||
1. **동적 할당** (`assign_from_input`): 구성된 경우 Flow 상태에서 이메일 가져옴
|
||||
2. **정적 이메일** (`assign_to_email`): 구성된 이메일로 대체
|
||||
3. **배포 생성자**: 규칙이 일치하지 않으면 배포 생성자의 이메일이 사용됨
|
||||
|
||||
### 동적 할당 예제
|
||||
|
||||
Flow 상태에 `{"sales_rep_email": "alice@company.com"}`이 포함된 경우:
|
||||
|
||||
```json
|
||||
{
|
||||
"name": "영업 담당자에게 라우팅",
|
||||
"match": {
|
||||
"method_name": "review_*"
|
||||
},
|
||||
"assign_from_input": "sales_rep_email"
|
||||
}
|
||||
```
|
||||
|
||||
요청이 자동으로 `alice@company.com`에 할당됩니다.
|
||||
|
||||
<Tip>
|
||||
**사용 사례**: CRM, 데이터베이스 또는 이전 Flow 단계에서 담당자를 가져와 적합한 사람에게 검토를 동적으로 라우팅하세요.
|
||||
</Tip>
|
||||
|
||||
## 자동 응답
|
||||
|
||||
시간 내에 인간이 응답하지 않으면 HITL 요청에 자동으로 응답합니다. 이를 통해 Flow가 무한정 중단되지 않도록 합니다.
|
||||
|
||||
### 구성
|
||||
|
||||
| 설정 | 설명 |
|
||||
|-----|------|
|
||||
| 활성화됨 | 자동 응답 활성화 토글 |
|
||||
| 타임아웃 (분) | 자동 응답 전 대기 시간 |
|
||||
| 기본 결과 | 응답 값 (`emit` 옵션과 일치해야 함) |
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-settings-auto-respond.png" alt="HITL 자동 응답 구성" />
|
||||
</Frame>
|
||||
|
||||
### 사용 사례
|
||||
|
||||
- **SLA 준수**: Flow가 무한정 중단되지 않도록 보장
|
||||
- **기본 승인**: 타임아웃 후 저위험 요청 자동 승인
|
||||
- **우아한 저하**: 검토자가 없을 때 안전한 기본값으로 계속
|
||||
|
||||
<Warning>
|
||||
자동 응답을 신중하게 사용하세요. 기본 응답이 허용되는 중요하지 않은 검토에만 활성화하세요.
|
||||
</Warning>
|
||||
|
||||
## 검토 프로세스
|
||||
|
||||
### 대시보드 인터페이스
|
||||
|
||||
HITL 검토 인터페이스는 검토자에게 깔끔하고 집중된 경험을 제공합니다:
|
||||
|
||||
- **마크다운 렌더링**: 구문 강조가 포함된 풍부한 형식의 검토 콘텐츠
|
||||
- **컨텍스트 패널**: Flow 상태, 실행 기록 및 관련 정보 보기
|
||||
- **피드백 입력**: 결정과 함께 상세한 피드백 및 코멘트 제공
|
||||
- **빠른 작업**: 선택적 코멘트가 있는 원클릭 emit 옵션 버튼
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-list-pending-feedbacks.png" alt="HITL 대기 중인 요청 목록" />
|
||||
</Frame>
|
||||
|
||||
### 응답 방법
|
||||
|
||||
검토자는 세 가지 채널을 통해 응답할 수 있습니다:
|
||||
|
||||
| 방법 | 설명 |
|
||||
|-----|------|
|
||||
| **이메일 회신** | 알림 이메일에 직접 회신 |
|
||||
| **대시보드** | Enterprise 대시보드 UI 사용 |
|
||||
| **API/Webhook** | API를 통한 프로그래밍 방식 응답 |
|
||||
|
||||
### 기록 및 감사 추적
|
||||
|
||||
모든 HITL 상호작용은 완전한 타임라인으로 추적됩니다:
|
||||
|
||||
- 결정 기록 (승인/거부/수정)
|
||||
- 검토자 신원 및 타임스탬프
|
||||
- 제공된 피드백 및 코멘트
|
||||
- 응답 방법 (이메일/대시보드/API)
|
||||
- 응답 시간 메트릭
|
||||
|
||||
## 분석 및 모니터링
|
||||
|
||||
포괄적인 분석으로 HITL 성능을 추적합니다.
|
||||
|
||||
### 성능 대시보드
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-metrics.png" alt="HITL 메트릭 대시보드" />
|
||||
</Frame>
|
||||
|
||||
<CardGroup cols={2}>
|
||||
<Card title="응답 시간" icon="stopwatch">
|
||||
검토자 또는 Flow별 평균 및 중앙값 응답 시간 모니터링.
|
||||
</Card>
|
||||
<Card title="볼륨 트렌드" icon="chart-bar">
|
||||
팀 용량 최적화를 위한 검토 볼륨 패턴 분석.
|
||||
</Card>
|
||||
<Card title="결정 분포" icon="chart-pie">
|
||||
다양한 검토 유형에 대한 승인/거부 비율 보기.
|
||||
</Card>
|
||||
<Card title="SLA 추적" icon="chart-line">
|
||||
SLA 목표 내에 완료된 검토 비율 추적.
|
||||
</Card>
|
||||
</CardGroup>
|
||||
|
||||
### 감사 및 규정 준수
|
||||
|
||||
규제 요구 사항을 위한 엔터프라이즈급 감사 기능:
|
||||
|
||||
- 타임스탬프가 있는 완전한 결정 기록
|
||||
- 검토자 신원 확인
|
||||
- 불변 감사 로그
|
||||
- 규정 준수 보고를 위한 내보내기 기능
|
||||
|
||||
## 일반적인 사용 사례
|
||||
|
||||
<AccordionGroup>
|
||||
<Accordion title="보안 검토" icon="shield-halved">
|
||||
**사용 사례**: 인간 검증이 포함된 내부 보안 설문지 자동화
|
||||
|
||||
- AI가 보안 설문지에 대한 응답 생성
|
||||
- 보안팀이 이메일로 정확성 검토 및 검증
|
||||
- 승인된 응답이 최종 제출물로 편집
|
||||
- 규정 준수를 위한 완전한 감사 추적
|
||||
</Accordion>
|
||||
|
||||
<Accordion title="콘텐츠 승인" icon="file-lines">
|
||||
**사용 사례**: 법무/브랜드 검토가 필요한 마케팅 콘텐츠
|
||||
|
||||
- AI가 마케팅 카피 또는 소셜 미디어 콘텐츠 생성
|
||||
- 브랜드팀 이메일로 목소리/톤 검토를 위해 라우팅
|
||||
- 승인 시 자동 게시
|
||||
</Accordion>
|
||||
|
||||
<Accordion title="재무 승인" icon="money-bill">
|
||||
**사용 사례**: 경비 보고서, 계약 조건, 예산 배분
|
||||
|
||||
- AI가 재무 요청을 사전 처리하고 분류
|
||||
- 동적 할당을 사용하여 금액 임계값에 따라 라우팅
|
||||
- 재무 규정 준수를 위한 완전한 감사 추적 유지
|
||||
</Accordion>
|
||||
|
||||
<Accordion title="CRM에서 동적 할당" icon="database">
|
||||
**사용 사례**: CRM에서 계정 담당자에게 검토 라우팅
|
||||
|
||||
- Flow가 CRM에서 계정 담당자 이메일 가져옴
|
||||
- 이메일을 Flow 상태에 저장 (예: `account_owner_email`)
|
||||
- `assign_from_input`을 사용하여 적합한 사람에게 자동 라우팅
|
||||
</Accordion>
|
||||
|
||||
<Accordion title="품질 보증" icon="magnifying-glass">
|
||||
**사용 사례**: 고객 전달 전 AI 출력 검증
|
||||
|
||||
- AI가 고객 대면 콘텐츠 또는 응답 생성
|
||||
- QA팀이 이메일 알림을 통해 검토
|
||||
- 피드백 루프가 시간이 지남에 따라 AI 성능 개선
|
||||
</Accordion>
|
||||
</AccordionGroup>
|
||||
|
||||
## Webhook API
|
||||
|
||||
Flow가 인간 피드백을 위해 일시 중지되면, 요청 데이터를 자체 애플리케이션으로 보내도록 webhook을 구성할 수 있습니다. 이를 통해 다음이 가능합니다:
|
||||
|
||||
- 커스텀 승인 UI 구축
|
||||
- 내부 도구와 통합 (Jira, ServiceNow, 커스텀 대시보드)
|
||||
- 타사 시스템으로 승인 라우팅
|
||||
- 모바일 앱 알림
|
||||
- 자동화된 결정 시스템
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-settings-webhook.png" alt="HITL Webhook 구성" />
|
||||
</Frame>
|
||||
|
||||
### Webhook 구성
|
||||
|
||||
<Steps>
|
||||
<Step title="설정으로 이동">
|
||||
**배포** → **설정** → **Human in the Loop**으로 이동
|
||||
</Step>
|
||||
<Step title="Webhook 섹션 확장">
|
||||
**Webhooks** 구성을 클릭하여 확장
|
||||
</Step>
|
||||
<Step title="Webhook URL 추가">
|
||||
webhook URL 입력 (프로덕션에서는 HTTPS 필수)
|
||||
</Step>
|
||||
<Step title="구성 저장">
|
||||
**구성 저장**을 클릭하여 활성화
|
||||
</Step>
|
||||
</Steps>
|
||||
|
||||
여러 webhook을 구성할 수 있습니다. 각 활성 webhook은 모든 HITL 이벤트를 수신합니다.
|
||||
|
||||
### Webhook 이벤트
|
||||
|
||||
엔드포인트는 다음 이벤트에 대해 HTTP POST 요청을 수신합니다:
|
||||
|
||||
| 이벤트 유형 | 트리거 시점 |
|
||||
|------------|------------|
|
||||
| `new_request` | Flow가 일시 중지되고 인간 피드백을 요청할 때 |
|
||||
|
||||
### Webhook 페이로드
|
||||
|
||||
모든 webhook은 다음 구조의 JSON 페이로드를 수신합니다:
|
||||
|
||||
```json
|
||||
{
|
||||
"event": "new_request",
|
||||
"request": {
|
||||
"id": "550e8400-e29b-41d4-a716-446655440000",
|
||||
"flow_id": "flow_abc123",
|
||||
"method_name": "review_article",
|
||||
"message": "이 기사의 게시를 검토해 주세요.",
|
||||
"emit_options": ["approved", "rejected", "request_changes"],
|
||||
"state": {
|
||||
"article_id": 12345,
|
||||
"author": "john@example.com",
|
||||
"category": "technology"
|
||||
},
|
||||
"metadata": {},
|
||||
"created_at": "2026-01-14T12:00:00Z"
|
||||
},
|
||||
"deployment": {
|
||||
"id": 456,
|
||||
"name": "Content Review Flow",
|
||||
"organization_id": 789
|
||||
},
|
||||
"callback_url": "https://api.crewai.com/...",
|
||||
"assigned_to_email": "reviewer@company.com"
|
||||
}
|
||||
```
|
||||
|
||||
### 요청에 응답하기
|
||||
|
||||
피드백을 제출하려면 webhook 페이로드에 포함된 **`callback_url`로 POST**합니다.
|
||||
|
||||
```http
|
||||
POST {callback_url}
|
||||
Content-Type: application/json
|
||||
|
||||
{
|
||||
"feedback": "승인됨. 훌륭한 기사입니다!",
|
||||
"source": "my_custom_app"
|
||||
}
|
||||
```
|
||||
|
||||
### 보안
|
||||
|
||||
<Info>
|
||||
모든 webhook 요청은 HMAC-SHA256을 사용하여 암호화 서명되어 진위성을 보장하고 변조를 방지합니다.
|
||||
</Info>
|
||||
|
||||
#### Webhook 보안
|
||||
|
||||
- **HMAC-SHA256 서명**: 모든 webhook에 암호화 서명이 포함됨
|
||||
- **Webhook별 시크릿**: 각 webhook은 고유한 서명 시크릿을 가짐
|
||||
- **저장 시 암호화**: 서명 시크릿은 데이터베이스에서 암호화됨
|
||||
- **타임스탬프 검증**: 리플레이 공격 방지
|
||||
|
||||
#### 서명 헤더
|
||||
|
||||
각 webhook 요청에는 다음 헤더가 포함됩니다:
|
||||
|
||||
| 헤더 | 설명 |
|
||||
|------|------|
|
||||
| `X-Signature` | HMAC-SHA256 서명: `sha256=<hex_digest>` |
|
||||
| `X-Timestamp` | 요청이 서명된 Unix 타임스탬프 |
|
||||
|
||||
#### 검증
|
||||
|
||||
다음과 같이 계산하여 검증합니다:
|
||||
|
||||
```python
|
||||
import hmac
|
||||
import hashlib
|
||||
|
||||
expected = hmac.new(
|
||||
signing_secret.encode(),
|
||||
f"{timestamp}.{payload}".encode(),
|
||||
hashlib.sha256
|
||||
).hexdigest()
|
||||
|
||||
if hmac.compare_digest(expected, signature):
|
||||
# 유효한 서명
|
||||
```
|
||||
|
||||
### 오류 처리
|
||||
|
||||
webhook 엔드포인트는 수신 확인을 위해 2xx 상태 코드를 반환해야 합니다:
|
||||
|
||||
| 응답 | 동작 |
|
||||
|------|------|
|
||||
| 2xx | Webhook 성공적으로 전달됨 |
|
||||
| 4xx/5xx | 실패로 기록됨, 재시도 없음 |
|
||||
| 타임아웃 (30초) | 실패로 기록됨, 재시도 없음 |
|
||||
|
||||
## 보안 및 RBAC
|
||||
|
||||
### 대시보드 접근
|
||||
|
||||
HITL 접근은 배포 수준에서 제어됩니다:
|
||||
|
||||
| 권한 | 기능 |
|
||||
|-----|------|
|
||||
| `manage_human_feedback` | HITL 설정 구성, 모든 요청 보기 |
|
||||
| `respond_to_human_feedback` | 요청에 응답, 할당된 요청 보기 |
|
||||
|
||||
### 이메일 응답 인증
|
||||
|
||||
이메일 회신의 경우:
|
||||
1. reply-to 토큰이 인증된 이메일을 인코딩
|
||||
2. 발신자 이메일이 토큰의 이메일과 일치해야 함
|
||||
3. 토큰이 만료되지 않아야 함 (기본 7일)
|
||||
4. 요청이 여전히 대기 중이어야 함
|
||||
|
||||
### 감사 추적
|
||||
|
||||
모든 HITL 작업이 기록됩니다:
|
||||
- 요청 생성
|
||||
- 할당 변경
|
||||
- 응답 제출 (소스: 대시보드/이메일/API)
|
||||
- Flow 재개 상태
|
||||
|
||||
## 문제 해결
|
||||
|
||||
### 이메일이 전송되지 않음
|
||||
|
||||
1. 구성에서 "이메일 알림"이 활성화되어 있는지 확인
|
||||
2. 라우팅 규칙이 메서드 이름과 일치하는지 확인
|
||||
3. 담당자 이메일이 유효한지 확인
|
||||
4. 라우팅 규칙이 일치하지 않는 경우 배포 생성자 대체 확인
|
||||
|
||||
### 이메일 회신이 처리되지 않음
|
||||
|
||||
1. 토큰이 만료되지 않았는지 확인 (기본 7일)
|
||||
2. 발신자 이메일이 할당된 이메일과 일치하는지 확인
|
||||
3. 요청이 여전히 대기 중인지 확인 (아직 응답되지 않음)
|
||||
|
||||
### Flow가 재개되지 않음
|
||||
|
||||
1. 대시보드에서 요청 상태 확인
|
||||
2. 콜백 URL에 접근 가능한지 확인
|
||||
3. 배포가 여전히 실행 중인지 확인
|
||||
|
||||
## 모범 사례
|
||||
|
||||
<Tip>
|
||||
**간단하게 시작**: 배포 생성자에게 이메일 알림으로 시작한 다음, 워크플로우가 성숙해지면 라우팅 규칙을 추가하세요.
|
||||
</Tip>
|
||||
|
||||
1. **동적 할당 사용**: 유연한 라우팅을 위해 Flow 상태에서 담당자 이메일을 가져오세요.
|
||||
|
||||
2. **자동 응답 구성**: 중요하지 않은 검토에 대해 Flow가 중단되지 않도록 대체를 설정하세요.
|
||||
|
||||
3. **응답 시간 모니터링**: 분석을 사용하여 병목 현상을 식별하고 검토 프로세스를 최적화하세요.
|
||||
|
||||
4. **검토 메시지를 명확하게 유지**: `@human_feedback` 데코레이터에 명확하고 실행 가능한 메시지를 작성하세요.
|
||||
|
||||
5. **이메일 흐름 테스트**: 프로덕션에 가기 전에 테스트 요청을 보내 이메일 전달을 확인하세요.
|
||||
|
||||
## 관련 리소스
|
||||
|
||||
<CardGroup cols={2}>
|
||||
<Card title="Flow에서 인간 피드백" icon="code" href="/ko/learn/human-feedback-in-flows">
|
||||
`@human_feedback` 데코레이터 구현 가이드
|
||||
</Card>
|
||||
<Card title="Flow HITL 워크플로우 가이드" icon="route" href="/ko/enterprise/guides/human-in-the-loop">
|
||||
HITL 워크플로우 설정을 위한 단계별 가이드
|
||||
</Card>
|
||||
<Card title="RBAC 구성" icon="shield-check" href="/ko/enterprise/features/rbac">
|
||||
조직을 위한 역할 기반 접근 제어 구성
|
||||
</Card>
|
||||
<Card title="Webhook 스트리밍" icon="bolt" href="/ko/enterprise/features/webhook-streaming">
|
||||
실시간 이벤트 알림 설정
|
||||
</Card>
|
||||
</CardGroup>
|
||||
@@ -5,54 +5,9 @@ icon: "user-check"
|
||||
mode: "wide"
|
||||
---
|
||||
|
||||
인간-중심(Human-In-The-Loop, HITL)은 인공지능과 인간 전문 지식을 결합하여 의사결정을 강화하고 작업 결과를 향상시키는 강력한 접근 방식입니다. 이 가이드는 CrewAI Enterprise 내에서 HITL을 구현하는 방법을 보여줍니다.
|
||||
인간-중심(Human-In-The-Loop, HITL)은 인공지능과 인간 전문 지식을 결합하여 의사결정을 강화하고 작업 결과를 향상시키는 강력한 접근 방식입니다. 이 가이드는 CrewAI 내에서 HITL을 구현하는 방법을 보여줍니다.
|
||||
|
||||
## CrewAI의 HITL 접근 방식
|
||||
|
||||
CrewAI는 human-in-the-loop 워크플로우를 구현하기 위한 두 가지 접근 방식을 제공합니다:
|
||||
|
||||
| 접근 방식 | 적합한 용도 | 버전 |
|
||||
|----------|----------|---------|
|
||||
| **Flow 기반** (`@human_feedback` 데코레이터) | Enterprise UI를 사용한 프로덕션, 이메일 우선 워크플로우, 전체 플랫폼 기능 | **1.8.0+** |
|
||||
| **Webhook 기반** | 커스텀 통합, 외부 시스템 (Slack, Teams 등), 레거시 설정 | 모든 버전 |
|
||||
|
||||
## Enterprise 플랫폼과 Flow 기반 HITL
|
||||
|
||||
<Note>
|
||||
`@human_feedback` 데코레이터는 **CrewAI 버전 1.8.0 이상**이 필요합니다.
|
||||
</Note>
|
||||
|
||||
Flow에서 `@human_feedback` 데코레이터를 사용하면, CrewAI Enterprise는 이메일 주소가 있는 누구나 검토 요청에 응답할 수 있는 **이메일 우선 HITL 시스템**을 제공합니다:
|
||||
|
||||
<CardGroup cols={2}>
|
||||
<Card title="이메일 우선 설계" icon="envelope">
|
||||
응답자가 이메일 알림을 받고 직접 회신할 수 있습니다—로그인이 필요 없습니다.
|
||||
</Card>
|
||||
<Card title="대시보드 검토" icon="desktop">
|
||||
원할 때 Enterprise 대시보드에서 HITL 요청을 검토하고 응답하세요.
|
||||
</Card>
|
||||
<Card title="유연한 라우팅" icon="route">
|
||||
메서드 패턴에 따라 특정 이메일로 요청을 라우팅하거나 Flow 상태에서 가져오세요.
|
||||
</Card>
|
||||
<Card title="자동 응답" icon="clock">
|
||||
타임아웃 내에 인간이 응답하지 않을 경우 자동 대체 응답을 구성하세요.
|
||||
</Card>
|
||||
</CardGroup>
|
||||
|
||||
### 주요 이점
|
||||
|
||||
- **외부 응답자**: 플랫폼 사용자가 아니어도 이메일이 있는 누구나 응답 가능
|
||||
- **동적 할당**: Flow 상태에서 담당자 이메일 가져오기 (예: `account_owner_email`)
|
||||
- **간단한 구성**: 이메일 기반 라우팅은 사용자/역할 관리보다 설정이 쉬움
|
||||
- **배포 생성자 대체**: 라우팅 규칙이 일치하지 않으면 배포 생성자에게 알림
|
||||
|
||||
<Tip>
|
||||
`@human_feedback` 데코레이터의 구현 세부 사항은 [Flow에서 인간 피드백](/ko/learn/human-feedback-in-flows) 가이드를 참조하세요.
|
||||
</Tip>
|
||||
|
||||
## Webhook 기반 HITL 워크플로 설정
|
||||
|
||||
Slack, Microsoft Teams 또는 자체 애플리케이션과 같은 외부 시스템과의 커스텀 통합을 위해 webhook 기반 접근 방식을 사용할 수 있습니다:
|
||||
## HITL 워크플로 설정
|
||||
|
||||
<Steps>
|
||||
<Step title="작업 구성">
|
||||
@@ -144,14 +99,3 @@ HITL 워크플로우는 특히 다음과 같은 경우에 유용합니다:
|
||||
- 민감하거나 위험도가 높은 작업
|
||||
- 인간의 판단이 필요한 창의적 작업
|
||||
- 준수 및 규제 검토
|
||||
|
||||
## 자세히 알아보기
|
||||
|
||||
<CardGroup cols={2}>
|
||||
<Card title="Flow HITL 관리" icon="users-gear" href="/ko/enterprise/features/flow-hitl-management">
|
||||
이메일 알림, 라우팅 규칙, 자동 응답 및 분석을 포함한 전체 Enterprise Flow HITL 플랫폼 기능을 살펴보세요.
|
||||
</Card>
|
||||
<Card title="Flow에서 인간 피드백" icon="code" href="/ko/learn/human-feedback-in-flows">
|
||||
Flow에서 `@human_feedback` 데코레이터 구현 가이드.
|
||||
</Card>
|
||||
</CardGroup>
|
||||
|
||||
@@ -112,9 +112,3 @@ HITL 워크플로우는 다음과 같은 경우에 특히 유용합니다:
|
||||
- 민감하거나 고위험 작업
|
||||
- 인간의 판단이 필요한 창의적 과제
|
||||
- 컴플라이언스 및 규제 검토
|
||||
|
||||
## Enterprise 기능
|
||||
|
||||
<Card title="Flow HITL 관리 플랫폼" icon="users-gear" href="/ko/enterprise/features/flow-hitl-management">
|
||||
CrewAI Enterprise는 플랫폼 내 검토, 응답자 할당, 권한, 에스컬레이션 정책, SLA 관리, 동적 라우팅 및 전체 분석을 갖춘 Flow용 포괄적인 HITL 관리 시스템을 제공합니다. [자세히 알아보기 →](/ko/enterprise/features/flow-hitl-management)
|
||||
</Card>
|
||||
|
||||
@@ -1,563 +0,0 @@
|
||||
---
|
||||
title: "Gerenciamento HITL para Flows"
|
||||
description: "Revisão humana de nível empresarial para Flows com notificações por email, regras de roteamento e capacidades de resposta automática"
|
||||
icon: "users-gear"
|
||||
mode: "wide"
|
||||
---
|
||||
|
||||
<Note>
|
||||
Os recursos de gerenciamento HITL para Flows requerem o decorador `@human_feedback`, disponível no **CrewAI versão 1.8.0 ou superior**. Estes recursos aplicam-se especificamente a **Flows**, não a Crews.
|
||||
</Note>
|
||||
|
||||
O CrewAI Enterprise oferece um sistema abrangente de gerenciamento Human-in-the-Loop (HITL) para Flows que transforma fluxos de trabalho de IA em processos colaborativos humano-IA. A plataforma usa uma **arquitetura email-first** que permite que qualquer pessoa com um endereço de email responda a solicitações de revisão—sem necessidade de conta na plataforma.
|
||||
|
||||
## Visão Geral
|
||||
|
||||
<CardGroup cols={3}>
|
||||
<Card title="Design Email-First" icon="envelope">
|
||||
Respondentes podem responder diretamente aos emails de notificação para fornecer feedback
|
||||
</Card>
|
||||
<Card title="Roteamento Flexível" icon="route">
|
||||
Direcione solicitações para emails específicos com base em padrões de método ou estado do flow
|
||||
</Card>
|
||||
<Card title="Resposta Automática" icon="clock">
|
||||
Configure respostas automáticas de fallback quando nenhum humano responder a tempo
|
||||
</Card>
|
||||
</CardGroup>
|
||||
|
||||
### Principais Benefícios
|
||||
|
||||
- **Modelo mental simples**: Endereços de email são universais; não é necessário gerenciar usuários ou funções da plataforma
|
||||
- **Respondentes externos**: Qualquer pessoa com email pode responder, mesmo não sendo usuário da plataforma
|
||||
- **Atribuição dinâmica**: Obtenha o email do responsável diretamente do estado do flow (ex: `sales_rep_email`)
|
||||
- **Configuração reduzida**: Menos configurações para definir, tempo mais rápido para gerar valor
|
||||
- **Email como canal principal**: A maioria dos usuários prefere responder via email do que fazer login em um dashboard
|
||||
|
||||
## Configurando Pontos de Revisão Humana em Flows
|
||||
|
||||
Configure checkpoints de revisão humana em seus Flows usando o decorador `@human_feedback`. Quando a execução atinge um ponto de revisão, o sistema pausa, notifica o responsável via email e aguarda uma resposta.
|
||||
|
||||
```python
|
||||
from crewai.flow.flow import Flow, start, listen
|
||||
from crewai.flow.human_feedback import human_feedback, HumanFeedbackResult
|
||||
|
||||
class ContentApprovalFlow(Flow):
|
||||
@start()
|
||||
def generate_content(self):
|
||||
# IA gera conteúdo
|
||||
return "Texto de marketing gerado para campanha Q1..."
|
||||
|
||||
@listen(generate_content)
|
||||
@human_feedback(
|
||||
message="Por favor, revise este conteúdo para conformidade com a marca:",
|
||||
emit=["approved", "rejected", "needs_revision"],
|
||||
)
|
||||
def review_content(self, content):
|
||||
return content
|
||||
|
||||
@listen("approved")
|
||||
def publish_content(self, result: HumanFeedbackResult):
|
||||
print(f"Publicando conteúdo aprovado. Notas do revisor: {result.feedback}")
|
||||
|
||||
@listen("rejected")
|
||||
def archive_content(self, result: HumanFeedbackResult):
|
||||
print(f"Conteúdo rejeitado. Motivo: {result.feedback}")
|
||||
|
||||
@listen("needs_revision")
|
||||
def revise_content(self, result: HumanFeedbackResult):
|
||||
print(f"Revisão solicitada: {result.feedback}")
|
||||
```
|
||||
|
||||
Para detalhes completos de implementação, consulte o guia [Feedback Humano em Flows](/pt-BR/learn/human-feedback-in-flows).
|
||||
|
||||
### Parâmetros do Decorador
|
||||
|
||||
| Parâmetro | Tipo | Descrição |
|
||||
|-----------|------|-----------|
|
||||
| `message` | `str` | A mensagem exibida para o revisor humano |
|
||||
| `emit` | `list[str]` | Opções de resposta válidas (exibidas como botões na UI) |
|
||||
|
||||
## Configuração da Plataforma
|
||||
|
||||
Acesse a configuração HITL em: **Deployment** → **Settings** → **Human in the Loop Configuration**
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-settings-overview.png" alt="Configurações HITL" />
|
||||
</Frame>
|
||||
|
||||
### Notificações por Email
|
||||
|
||||
Toggle para ativar ou desativar notificações por email para solicitações HITL.
|
||||
|
||||
| Configuração | Padrão | Descrição |
|
||||
|--------------|--------|-----------|
|
||||
| Notificações por Email | Ativado | Enviar emails quando feedback for solicitado |
|
||||
|
||||
<Note>
|
||||
Quando desativado, os respondentes devem usar a UI do dashboard ou você deve configurar webhooks para sistemas de notificação personalizados.
|
||||
</Note>
|
||||
|
||||
### Meta de SLA
|
||||
|
||||
Defina um tempo de resposta alvo para fins de rastreamento e métricas.
|
||||
|
||||
| Configuração | Descrição |
|
||||
|--------------|-----------|
|
||||
| Meta de SLA (minutos) | Tempo de resposta alvo. Usado para métricas do dashboard e rastreamento de SLA |
|
||||
|
||||
Deixe vazio para desativar o rastreamento de SLA.
|
||||
|
||||
## Notificações e Respostas por Email
|
||||
|
||||
O sistema HITL usa uma arquitetura email-first onde os respondentes podem responder diretamente aos emails de notificação.
|
||||
|
||||
### Como Funcionam as Respostas por Email
|
||||
|
||||
<Steps>
|
||||
<Step title="Notificação Enviada">
|
||||
Quando uma solicitação HITL é criada, um email é enviado ao respondente atribuído com o conteúdo e contexto da revisão.
|
||||
</Step>
|
||||
<Step title="Endereço Reply-To">
|
||||
O email inclui um endereço reply-to especial com um token assinado para autenticação.
|
||||
</Step>
|
||||
<Step title="Usuário Responde">
|
||||
O respondente simplesmente responde ao email com seu feedback—nenhum login necessário.
|
||||
</Step>
|
||||
<Step title="Validação do Token">
|
||||
A plataforma recebe a resposta, verifica o token assinado e corresponde o email do remetente.
|
||||
</Step>
|
||||
<Step title="Flow Continua">
|
||||
O feedback é registrado e o flow continua com a entrada humana.
|
||||
</Step>
|
||||
</Steps>
|
||||
|
||||
### Formato de Resposta
|
||||
|
||||
Respondentes podem responder com:
|
||||
|
||||
- **Opção emit**: Se a resposta corresponder a uma opção `emit` (ex: "approved"), ela é usada diretamente
|
||||
- **Texto livre**: Qualquer resposta de texto é passada para o flow como feedback
|
||||
- **Texto simples**: A primeira linha do corpo da resposta é usada como feedback
|
||||
|
||||
### Emails de Confirmação
|
||||
|
||||
Após processar uma resposta, o respondente recebe um email de confirmação indicando se o feedback foi enviado com sucesso ou se ocorreu um erro.
|
||||
|
||||
### Segurança do Token de Email
|
||||
|
||||
- Tokens são assinados criptograficamente para segurança
|
||||
- Tokens expiram após 7 dias
|
||||
- Email do remetente deve corresponder ao email autorizado do token
|
||||
- Emails de confirmação/erro são enviados após o processamento
|
||||
|
||||
## Regras de Roteamento
|
||||
|
||||
Direcione solicitações HITL para endereços de email específicos com base em padrões de método.
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-settings-routing-rules.png" alt="Configuração de Regras de Roteamento HITL" />
|
||||
</Frame>
|
||||
|
||||
### Estrutura da Regra
|
||||
|
||||
```json
|
||||
{
|
||||
"name": "Aprovações para Financeiro",
|
||||
"match": {
|
||||
"method_name": "approve_*"
|
||||
},
|
||||
"assign_to_email": "financeiro@empresa.com",
|
||||
"assign_from_input": "manager_email"
|
||||
}
|
||||
```
|
||||
|
||||
### Padrões de Correspondência
|
||||
|
||||
| Padrão | Descrição | Exemplo de Correspondência |
|
||||
|--------|-----------|---------------------------|
|
||||
| `approve_*` | Wildcard (qualquer caractere) | `approve_payment`, `approve_vendor` |
|
||||
| `review_?` | Caractere único | `review_a`, `review_1` |
|
||||
| `validate_payment` | Correspondência exata | apenas `validate_payment` |
|
||||
|
||||
### Prioridade de Atribuição
|
||||
|
||||
1. **Atribuição dinâmica** (`assign_from_input`): Se configurado, obtém email do estado do flow
|
||||
2. **Email estático** (`assign_to_email`): Fallback para email configurado
|
||||
3. **Criador do deployment**: Se nenhuma regra corresponder, o email do criador do deployment é usado
|
||||
|
||||
### Exemplo de Atribuição Dinâmica
|
||||
|
||||
Se seu estado do flow contém `{"sales_rep_email": "alice@empresa.com"}`, configure:
|
||||
|
||||
```json
|
||||
{
|
||||
"name": "Direcionar para Representante de Vendas",
|
||||
"match": {
|
||||
"method_name": "review_*"
|
||||
},
|
||||
"assign_from_input": "sales_rep_email"
|
||||
}
|
||||
```
|
||||
|
||||
A solicitação será atribuída automaticamente para `alice@empresa.com`.
|
||||
|
||||
<Tip>
|
||||
**Caso de Uso**: Obtenha o responsável do seu CRM, banco de dados ou etapa anterior do flow para direcionar revisões dinamicamente para a pessoa certa.
|
||||
</Tip>
|
||||
|
||||
## Resposta Automática
|
||||
|
||||
Responda automaticamente a solicitações HITL se nenhum humano responder dentro do timeout. Isso garante que os flows não fiquem travados indefinidamente.
|
||||
|
||||
### Configuração
|
||||
|
||||
| Configuração | Descrição |
|
||||
|--------------|-----------|
|
||||
| Ativado | Toggle para ativar resposta automática |
|
||||
| Timeout (minutos) | Tempo de espera antes de responder automaticamente |
|
||||
| Resultado Padrão | O valor da resposta (deve corresponder a uma opção `emit`) |
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-settings-auto-respond.png" alt="Configuração de Resposta Automática HITL" />
|
||||
</Frame>
|
||||
|
||||
### Casos de Uso
|
||||
|
||||
- **Conformidade com SLA**: Garante que flows não fiquem travados indefinidamente
|
||||
- **Aprovação padrão**: Aprove automaticamente solicitações de baixo risco após timeout
|
||||
- **Degradação graciosa**: Continue com um padrão seguro quando revisores não estiverem disponíveis
|
||||
|
||||
<Warning>
|
||||
Use resposta automática com cuidado. Ative apenas para revisões não críticas onde uma resposta padrão é aceitável.
|
||||
</Warning>
|
||||
|
||||
## Processo de Revisão
|
||||
|
||||
### Interface do Dashboard
|
||||
|
||||
A interface de revisão HITL oferece uma experiência limpa e focada para revisores:
|
||||
|
||||
- **Renderização Markdown**: Formatação rica para conteúdo de revisão com destaque de sintaxe
|
||||
- **Painel de Contexto**: Visualize estado do flow, histórico de execução e informações relacionadas
|
||||
- **Entrada de Feedback**: Forneça feedback detalhado e comentários com sua decisão
|
||||
- **Ações Rápidas**: Botões de opção emit com um clique com comentários opcionais
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-list-pending-feedbacks.png" alt="Lista de Solicitações HITL Pendentes" />
|
||||
</Frame>
|
||||
|
||||
### Métodos de Resposta
|
||||
|
||||
Revisores podem responder por três canais:
|
||||
|
||||
| Método | Descrição |
|
||||
|--------|-----------|
|
||||
| **Resposta por Email** | Responda diretamente ao email de notificação |
|
||||
| **Dashboard** | Use a UI do dashboard Enterprise |
|
||||
| **API/Webhook** | Resposta programática via API |
|
||||
|
||||
### Histórico e Trilha de Auditoria
|
||||
|
||||
Toda interação HITL é rastreada com uma linha do tempo completa:
|
||||
|
||||
- Histórico de decisões (aprovar/rejeitar/revisar)
|
||||
- Identidade do revisor e timestamp
|
||||
- Feedback e comentários fornecidos
|
||||
- Método de resposta (email/dashboard/API)
|
||||
- Métricas de tempo de resposta
|
||||
|
||||
## Análise e Monitoramento
|
||||
|
||||
Acompanhe o desempenho HITL com análises abrangentes.
|
||||
|
||||
### Dashboard de Desempenho
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-metrics.png" alt="Dashboard de Métricas HITL" />
|
||||
</Frame>
|
||||
|
||||
<CardGroup cols={2}>
|
||||
<Card title="Tempos de Resposta" icon="stopwatch">
|
||||
Monitore tempos de resposta médios e medianos por revisor ou flow.
|
||||
</Card>
|
||||
<Card title="Tendências de Volume" icon="chart-bar">
|
||||
Analise padrões de volume de revisão para otimizar capacidade da equipe.
|
||||
</Card>
|
||||
<Card title="Distribuição de Decisões" icon="chart-pie">
|
||||
Visualize taxas de aprovação/rejeição em diferentes tipos de revisão.
|
||||
</Card>
|
||||
<Card title="Rastreamento de SLA" icon="chart-line">
|
||||
Acompanhe a porcentagem de revisões concluídas dentro das metas de SLA.
|
||||
</Card>
|
||||
</CardGroup>
|
||||
|
||||
### Auditoria e Conformidade
|
||||
|
||||
Capacidades de auditoria prontas para empresas para requisitos regulatórios:
|
||||
|
||||
- Histórico completo de decisões com timestamps
|
||||
- Verificação de identidade do revisor
|
||||
- Logs de auditoria imutáveis
|
||||
- Capacidades de exportação para relatórios de conformidade
|
||||
|
||||
## Casos de Uso Comuns
|
||||
|
||||
<AccordionGroup>
|
||||
<Accordion title="Revisões de Segurança" icon="shield-halved">
|
||||
**Caso de Uso**: Automação de questionários de segurança internos com validação humana
|
||||
|
||||
- IA gera respostas para questionários de segurança
|
||||
- Equipe de segurança revisa e valida precisão via email
|
||||
- Respostas aprovadas são compiladas na submissão final
|
||||
- Trilha de auditoria completa para conformidade
|
||||
</Accordion>
|
||||
|
||||
<Accordion title="Aprovação de Conteúdo" icon="file-lines">
|
||||
**Caso de Uso**: Conteúdo de marketing que requer revisão legal/marca
|
||||
|
||||
- IA gera texto de marketing ou conteúdo de mídia social
|
||||
- Roteie para email da equipe de marca para revisão de voz/tom
|
||||
- Publicação automática após aprovação
|
||||
</Accordion>
|
||||
|
||||
<Accordion title="Aprovações Financeiras" icon="money-bill">
|
||||
**Caso de Uso**: Relatórios de despesas, termos de contrato, alocações de orçamento
|
||||
|
||||
- IA pré-processa e categoriza solicitações financeiras
|
||||
- Roteie com base em limites de valor usando atribuição dinâmica
|
||||
- Mantenha trilha de auditoria completa para conformidade financeira
|
||||
</Accordion>
|
||||
|
||||
<Accordion title="Atribuição Dinâmica do CRM" icon="database">
|
||||
**Caso de Uso**: Direcione revisões para proprietários de conta do seu CRM
|
||||
|
||||
- Flow obtém email do proprietário da conta do CRM
|
||||
- Armazene email no estado do flow (ex: `account_owner_email`)
|
||||
- Use `assign_from_input` para direcionar automaticamente para a pessoa certa
|
||||
</Accordion>
|
||||
|
||||
<Accordion title="Garantia de Qualidade" icon="magnifying-glass">
|
||||
**Caso de Uso**: Validação de saída de IA antes da entrega ao cliente
|
||||
|
||||
- IA gera conteúdo ou respostas voltadas ao cliente
|
||||
- Equipe de QA revisa via notificação por email
|
||||
- Loops de feedback melhoram desempenho da IA ao longo do tempo
|
||||
</Accordion>
|
||||
</AccordionGroup>
|
||||
|
||||
## API de Webhooks
|
||||
|
||||
Quando seus Flows pausam para feedback humano, você pode configurar webhooks para enviar dados da solicitação para sua própria aplicação. Isso permite:
|
||||
|
||||
- Construir UIs de aprovação personalizadas
|
||||
- Integrar com ferramentas internas (Jira, ServiceNow, dashboards personalizados)
|
||||
- Rotear aprovações para sistemas de terceiros
|
||||
- Notificações em apps mobile
|
||||
- Sistemas de decisão automatizados
|
||||
|
||||
<Frame>
|
||||
<img src="/images/enterprise/hitl-settings-webhook.png" alt="Configuração de Webhook HITL" />
|
||||
</Frame>
|
||||
|
||||
### Configurando Webhooks
|
||||
|
||||
<Steps>
|
||||
<Step title="Navegue até Configurações">
|
||||
Vá para **Deployment** → **Settings** → **Human in the Loop**
|
||||
</Step>
|
||||
<Step title="Expanda a Seção Webhooks">
|
||||
Clique para expandir a configuração de **Webhooks**
|
||||
</Step>
|
||||
<Step title="Adicione sua URL de Webhook">
|
||||
Digite sua URL de webhook (deve ser HTTPS em produção)
|
||||
</Step>
|
||||
<Step title="Salve a Configuração">
|
||||
Clique em **Salvar Configuração** para ativar
|
||||
</Step>
|
||||
</Steps>
|
||||
|
||||
Você pode configurar múltiplos webhooks. Cada webhook ativo recebe todos os eventos HITL.
|
||||
|
||||
### Eventos de Webhook
|
||||
|
||||
Seu endpoint receberá requisições HTTP POST para estes eventos:
|
||||
|
||||
| Tipo de Evento | Quando é Disparado |
|
||||
|----------------|-------------------|
|
||||
| `new_request` | Um flow pausa e solicita feedback humano |
|
||||
|
||||
### Payload do Webhook
|
||||
|
||||
Todos os webhooks recebem um payload JSON com esta estrutura:
|
||||
|
||||
```json
|
||||
{
|
||||
"event": "new_request",
|
||||
"request": {
|
||||
"id": "550e8400-e29b-41d4-a716-446655440000",
|
||||
"flow_id": "flow_abc123",
|
||||
"method_name": "review_article",
|
||||
"message": "Por favor, revise este artigo para publicação.",
|
||||
"emit_options": ["approved", "rejected", "request_changes"],
|
||||
"state": {
|
||||
"article_id": 12345,
|
||||
"author": "john@example.com",
|
||||
"category": "technology"
|
||||
},
|
||||
"metadata": {},
|
||||
"created_at": "2026-01-14T12:00:00Z"
|
||||
},
|
||||
"deployment": {
|
||||
"id": 456,
|
||||
"name": "Content Review Flow",
|
||||
"organization_id": 789
|
||||
},
|
||||
"callback_url": "https://api.crewai.com/...",
|
||||
"assigned_to_email": "reviewer@company.com"
|
||||
}
|
||||
```
|
||||
|
||||
### Respondendo a Solicitações
|
||||
|
||||
Para enviar feedback, **faça POST para a `callback_url`** incluída no payload do webhook.
|
||||
|
||||
```http
|
||||
POST {callback_url}
|
||||
Content-Type: application/json
|
||||
|
||||
{
|
||||
"feedback": "Aprovado. Ótimo artigo!",
|
||||
"source": "my_custom_app"
|
||||
}
|
||||
```
|
||||
|
||||
### Segurança
|
||||
|
||||
<Info>
|
||||
Todas as requisições de webhook são assinadas criptograficamente usando HMAC-SHA256 para garantir autenticidade e prevenir adulteração.
|
||||
</Info>
|
||||
|
||||
#### Segurança do Webhook
|
||||
|
||||
- **Assinaturas HMAC-SHA256**: Todo webhook inclui uma assinatura criptográfica
|
||||
- **Secrets por webhook**: Cada webhook tem seu próprio secret de assinatura único
|
||||
- **Criptografado em repouso**: Os secrets de assinatura são criptografados no nosso banco de dados
|
||||
- **Verificação de timestamp**: Previne ataques de replay
|
||||
|
||||
#### Headers de Assinatura
|
||||
|
||||
Cada requisição de webhook inclui estes headers:
|
||||
|
||||
| Header | Descrição |
|
||||
|--------|-----------|
|
||||
| `X-Signature` | Assinatura HMAC-SHA256: `sha256=<hex_digest>` |
|
||||
| `X-Timestamp` | Timestamp Unix de quando a requisição foi assinada |
|
||||
|
||||
#### Verificação
|
||||
|
||||
Verifique computando:
|
||||
|
||||
```python
|
||||
import hmac
|
||||
import hashlib
|
||||
|
||||
expected = hmac.new(
|
||||
signing_secret.encode(),
|
||||
f"{timestamp}.{payload}".encode(),
|
||||
hashlib.sha256
|
||||
).hexdigest()
|
||||
|
||||
if hmac.compare_digest(expected, signature):
|
||||
# Assinatura válida
|
||||
```
|
||||
|
||||
### Tratamento de Erros
|
||||
|
||||
Seu endpoint de webhook deve retornar um código de status 2xx para confirmar o recebimento:
|
||||
|
||||
| Sua Resposta | Nosso Comportamento |
|
||||
|--------------|---------------------|
|
||||
| 2xx | Webhook entregue com sucesso |
|
||||
| 4xx/5xx | Registrado como falha, sem retry |
|
||||
| Timeout (30s) | Registrado como falha, sem retry |
|
||||
|
||||
## Segurança e RBAC
|
||||
|
||||
### Acesso ao Dashboard
|
||||
|
||||
O acesso HITL é controlado no nível do deployment:
|
||||
|
||||
| Permissão | Capacidade |
|
||||
|-----------|------------|
|
||||
| `manage_human_feedback` | Configurar settings HITL, ver todas as solicitações |
|
||||
| `respond_to_human_feedback` | Responder a solicitações, ver solicitações atribuídas |
|
||||
|
||||
### Autorização de Resposta por Email
|
||||
|
||||
Para respostas por email:
|
||||
1. O token reply-to codifica o email autorizado
|
||||
2. Email do remetente deve corresponder ao email do token
|
||||
3. Token não deve estar expirado (padrão 7 dias)
|
||||
4. Solicitação ainda deve estar pendente
|
||||
|
||||
### Trilha de Auditoria
|
||||
|
||||
Todas as ações HITL são registradas:
|
||||
- Criação de solicitação
|
||||
- Mudanças de atribuição
|
||||
- Submissão de resposta (com fonte: dashboard/email/API)
|
||||
- Status de retomada do flow
|
||||
|
||||
## Solução de Problemas
|
||||
|
||||
### Emails Não Enviando
|
||||
|
||||
1. Verifique se "Notificações por Email" está ativado na configuração
|
||||
2. Verifique se as regras de roteamento correspondem ao nome do método
|
||||
3. Verifique se o email do responsável é válido
|
||||
4. Verifique o fallback do criador do deployment se nenhuma regra de roteamento corresponder
|
||||
|
||||
### Respostas de Email Não Processando
|
||||
|
||||
1. Verifique se o token não expirou (padrão 7 dias)
|
||||
2. Verifique se o email do remetente corresponde ao email atribuído
|
||||
3. Garanta que a solicitação ainda está pendente (não respondida ainda)
|
||||
|
||||
### Flow Não Retomando
|
||||
|
||||
1. Verifique o status da solicitação no dashboard
|
||||
2. Verifique se a URL de callback está acessível
|
||||
3. Garanta que o deployment ainda está rodando
|
||||
|
||||
## Melhores Práticas
|
||||
|
||||
<Tip>
|
||||
**Comece Simples**: Comece com notificações por email para o criador do deployment, depois adicione regras de roteamento conforme seus fluxos de trabalho amadurecem.
|
||||
</Tip>
|
||||
|
||||
1. **Use Atribuição Dinâmica**: Obtenha emails de responsáveis do seu estado do flow para roteamento flexível.
|
||||
|
||||
2. **Configure Resposta Automática**: Defina um fallback para revisões não críticas para evitar que flows fiquem travados.
|
||||
|
||||
3. **Monitore Tempos de Resposta**: Use análises para identificar gargalos e otimizar seu processo de revisão.
|
||||
|
||||
4. **Mantenha Mensagens de Revisão Claras**: Escreva mensagens claras e acionáveis no decorador `@human_feedback`.
|
||||
|
||||
5. **Teste o Fluxo de Email**: Envie solicitações de teste para verificar a entrega de email antes de ir para produção.
|
||||
|
||||
## Recursos Relacionados
|
||||
|
||||
<CardGroup cols={2}>
|
||||
<Card title="Feedback Humano em Flows" icon="code" href="/pt-BR/learn/human-feedback-in-flows">
|
||||
Guia de implementação para o decorador `@human_feedback`
|
||||
</Card>
|
||||
<Card title="Guia de Workflow HITL para Flows" icon="route" href="/pt-BR/enterprise/guides/human-in-the-loop">
|
||||
Guia passo a passo para configurar workflows HITL
|
||||
</Card>
|
||||
<Card title="Configuração RBAC" icon="shield-check" href="/pt-BR/enterprise/features/rbac">
|
||||
Configure controle de acesso baseado em função para sua organização
|
||||
</Card>
|
||||
<Card title="Streaming de Webhook" icon="bolt" href="/pt-BR/enterprise/features/webhook-streaming">
|
||||
Configure notificações de eventos em tempo real
|
||||
</Card>
|
||||
</CardGroup>
|
||||
@@ -5,54 +5,9 @@ icon: "user-check"
|
||||
mode: "wide"
|
||||
---
|
||||
|
||||
Human-In-The-Loop (HITL) é uma abordagem poderosa que combina inteligência artificial com expertise humana para aprimorar a tomada de decisão e melhorar os resultados das tarefas. Este guia mostra como implementar HITL dentro do CrewAI Enterprise.
|
||||
Human-In-The-Loop (HITL) é uma abordagem poderosa que combina inteligência artificial com expertise humana para aprimorar a tomada de decisão e melhorar os resultados das tarefas. Este guia mostra como implementar HITL dentro do CrewAI.
|
||||
|
||||
## Abordagens HITL no CrewAI
|
||||
|
||||
CrewAI oferece duas abordagens para implementar workflows human-in-the-loop:
|
||||
|
||||
| Abordagem | Melhor Para | Versão |
|
||||
|----------|----------|---------|
|
||||
| **Baseada em Flow** (decorador `@human_feedback`) | Produção com UI Enterprise, workflows email-first, recursos completos da plataforma | **1.8.0+** |
|
||||
| **Baseada em Webhook** | Integrações customizadas, sistemas externos (Slack, Teams, etc.), configurações legadas | Todas as versões |
|
||||
|
||||
## HITL Baseado em Flow com Plataforma Enterprise
|
||||
|
||||
<Note>
|
||||
O decorador `@human_feedback` requer **CrewAI versão 1.8.0 ou superior**.
|
||||
</Note>
|
||||
|
||||
Ao usar o decorador `@human_feedback` em seus Flows, o CrewAI Enterprise oferece um **sistema HITL email-first** que permite que qualquer pessoa com um endereço de email responda a solicitações de revisão:
|
||||
|
||||
<CardGroup cols={2}>
|
||||
<Card title="Design Email-First" icon="envelope">
|
||||
Respondentes recebem notificações por email e podem responder diretamente—nenhum login necessário.
|
||||
</Card>
|
||||
<Card title="Revisão no Dashboard" icon="desktop">
|
||||
Revise e responda a solicitações HITL no dashboard Enterprise quando preferir.
|
||||
</Card>
|
||||
<Card title="Roteamento Flexível" icon="route">
|
||||
Direcione solicitações para emails específicos com base em padrões de método ou obtenha do estado do flow.
|
||||
</Card>
|
||||
<Card title="Resposta Automática" icon="clock">
|
||||
Configure respostas automáticas de fallback quando nenhum humano responder dentro do timeout.
|
||||
</Card>
|
||||
</CardGroup>
|
||||
|
||||
### Principais Benefícios
|
||||
|
||||
- **Respondentes externos**: Qualquer pessoa com email pode responder, mesmo não sendo usuário da plataforma
|
||||
- **Atribuição dinâmica**: Obtenha o email do responsável do estado do flow (ex: `account_owner_email`)
|
||||
- **Configuração simples**: Roteamento baseado em email é mais fácil de configurar do que gerenciamento de usuários/funções
|
||||
- **Fallback do criador do deployment**: Se nenhuma regra de roteamento corresponder, o criador do deployment é notificado
|
||||
|
||||
<Tip>
|
||||
Para detalhes de implementação do decorador `@human_feedback`, consulte o guia [Feedback Humano em Flows](/pt-BR/learn/human-feedback-in-flows).
|
||||
</Tip>
|
||||
|
||||
## Configurando Workflows HITL Baseados em Webhook
|
||||
|
||||
Para integrações customizadas com sistemas externos como Slack, Microsoft Teams ou suas próprias aplicações, você pode usar a abordagem baseada em webhook:
|
||||
## Configurando Workflows HITL
|
||||
|
||||
<Steps>
|
||||
<Step title="Configure Sua Tarefa">
|
||||
@@ -144,14 +99,3 @@ Workflows HITL são particularmente valiosos para:
|
||||
- Operações sensíveis ou de alto risco
|
||||
- Tarefas criativas que exigem julgamento humano
|
||||
- Revisões de conformidade e regulatórias
|
||||
|
||||
## Saiba Mais
|
||||
|
||||
<CardGroup cols={2}>
|
||||
<Card title="Gerenciamento HITL para Flows" icon="users-gear" href="/pt-BR/enterprise/features/flow-hitl-management">
|
||||
Explore os recursos completos da plataforma HITL para Flows, incluindo notificações por email, regras de roteamento, resposta automática e análises.
|
||||
</Card>
|
||||
<Card title="Feedback Humano em Flows" icon="code" href="/pt-BR/learn/human-feedback-in-flows">
|
||||
Guia de implementação para o decorador `@human_feedback` em seus Flows.
|
||||
</Card>
|
||||
</CardGroup>
|
||||
|
||||
@@ -112,9 +112,3 @@ Workflows HITL são particularmente valiosos para:
|
||||
- Operações sensíveis ou de alto risco
|
||||
- Tarefas criativas que requerem julgamento humano
|
||||
- Revisões de conformidade e regulamentação
|
||||
|
||||
## Recursos Enterprise
|
||||
|
||||
<Card title="Plataforma de Gerenciamento HITL para Flows" icon="users-gear" href="/pt-BR/enterprise/features/flow-hitl-management">
|
||||
O CrewAI Enterprise oferece um sistema abrangente de gerenciamento HITL para Flows com revisão na plataforma, atribuição de respondentes, permissões, políticas de escalação, gerenciamento de SLA, roteamento dinâmico e análises completas. [Saiba mais →](/pt-BR/enterprise/features/flow-hitl-management)
|
||||
</Card>
|
||||
|
||||
@@ -152,4 +152,4 @@ __all__ = [
|
||||
"wrap_file_source",
|
||||
]
|
||||
|
||||
__version__ = "1.9.3"
|
||||
__version__ = "1.9.2"
|
||||
|
||||
@@ -12,7 +12,7 @@ dependencies = [
|
||||
"pytube~=15.0.0",
|
||||
"requests~=2.32.5",
|
||||
"docker~=7.1.0",
|
||||
"crewai==1.9.3",
|
||||
"crewai==1.9.2",
|
||||
"lancedb~=0.5.4",
|
||||
"tiktoken~=0.8.0",
|
||||
"beautifulsoup4~=4.13.4",
|
||||
|
||||
@@ -291,4 +291,4 @@ __all__ = [
|
||||
"ZapierActionTools",
|
||||
]
|
||||
|
||||
__version__ = "1.9.3"
|
||||
__version__ = "1.9.2"
|
||||
|
||||
@@ -13,10 +13,18 @@ from crewai_tools.tools.crewai_platform_tools.crewai_platform_tool_builder impor
|
||||
from crewai_tools.tools.crewai_platform_tools.crewai_platform_tools import (
|
||||
CrewaiPlatformTools,
|
||||
)
|
||||
from crewai_tools.tools.crewai_platform_tools.file_hook import (
|
||||
process_file_markers,
|
||||
register_file_processing_hook,
|
||||
unregister_file_processing_hook,
|
||||
)
|
||||
|
||||
|
||||
__all__ = [
|
||||
"CrewAIPlatformActionTool",
|
||||
"CrewaiPlatformToolBuilder",
|
||||
"CrewaiPlatformTools",
|
||||
"process_file_markers",
|
||||
"register_file_processing_hook",
|
||||
"unregister_file_processing_hook",
|
||||
]
|
||||
|
||||
@@ -2,6 +2,8 @@
|
||||
|
||||
import json
|
||||
import os
|
||||
import re
|
||||
import tempfile
|
||||
from typing import Any
|
||||
|
||||
from crewai.tools import BaseTool
|
||||
@@ -14,6 +16,26 @@ from crewai_tools.tools.crewai_platform_tools.misc import (
|
||||
get_platform_integration_token,
|
||||
)
|
||||
|
||||
_FILE_MARKER_PREFIX = "__CREWAI_FILE__"
|
||||
|
||||
_MIME_TO_EXTENSION = {
|
||||
"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": ".xlsx",
|
||||
"application/vnd.ms-excel": ".xls",
|
||||
"application/vnd.openxmlformats-officedocument.wordprocessingml.document": ".docx",
|
||||
"application/msword": ".doc",
|
||||
"application/vnd.openxmlformats-officedocument.presentationml.presentation": ".pptx",
|
||||
"application/vnd.ms-powerpoint": ".ppt",
|
||||
"application/pdf": ".pdf",
|
||||
"image/png": ".png",
|
||||
"image/jpeg": ".jpg",
|
||||
"image/gif": ".gif",
|
||||
"image/webp": ".webp",
|
||||
"text/plain": ".txt",
|
||||
"text/csv": ".csv",
|
||||
"application/json": ".json",
|
||||
"application/zip": ".zip",
|
||||
}
|
||||
|
||||
|
||||
class CrewAIPlatformActionTool(BaseTool):
|
||||
action_name: str = Field(default="", description="The name of the action")
|
||||
@@ -71,10 +93,18 @@ class CrewAIPlatformActionTool(BaseTool):
|
||||
url=api_url,
|
||||
headers=headers,
|
||||
json=payload,
|
||||
timeout=60,
|
||||
timeout=300,
|
||||
stream=True,
|
||||
verify=os.environ.get("CREWAI_FACTORY", "false").lower() != "true",
|
||||
)
|
||||
|
||||
content_type = response.headers.get("Content-Type", "")
|
||||
|
||||
# Check if response is binary (non-JSON)
|
||||
if "application/json" not in content_type:
|
||||
return self._handle_binary_response(response)
|
||||
|
||||
# Normal JSON response
|
||||
data = response.json()
|
||||
if not response.ok:
|
||||
if isinstance(data, dict):
|
||||
@@ -91,3 +121,49 @@ class CrewAIPlatformActionTool(BaseTool):
|
||||
|
||||
except Exception as e:
|
||||
return f"Error executing action {self.action_name}: {e!s}"
|
||||
|
||||
def _handle_binary_response(self, response: requests.Response) -> str:
|
||||
"""Handle binary streaming response from the API.
|
||||
|
||||
Streams the binary content to a temporary file and returns a marker
|
||||
that can be processed by the file hook to inject the file into the
|
||||
LLM context.
|
||||
|
||||
Args:
|
||||
response: The streaming HTTP response with binary content.
|
||||
|
||||
Returns:
|
||||
A file marker string in the format:
|
||||
__CREWAI_FILE__:filename:content_type:file_path
|
||||
"""
|
||||
content_type = response.headers.get("Content-Type", "application/octet-stream")
|
||||
|
||||
filename = self._extract_filename_from_headers(response.headers)
|
||||
|
||||
extension = self._get_file_extension(content_type, filename)
|
||||
|
||||
with tempfile.NamedTemporaryFile(
|
||||
delete=False, suffix=extension, prefix="crewai_"
|
||||
) as tmp_file:
|
||||
for chunk in response.iter_content(chunk_size=8192):
|
||||
tmp_file.write(chunk)
|
||||
tmp_path = tmp_file.name
|
||||
|
||||
return f"{_FILE_MARKER_PREFIX}:{filename}:{content_type}:{tmp_path}"
|
||||
|
||||
def _extract_filename_from_headers(
|
||||
self, headers: requests.structures.CaseInsensitiveDict
|
||||
) -> str:
|
||||
content_disposition = headers.get("Content-Disposition", "")
|
||||
if content_disposition:
|
||||
match = re.search(r'filename="?([^";\s]+)"?', content_disposition)
|
||||
if match:
|
||||
return match.group(1)
|
||||
return "downloaded_file"
|
||||
|
||||
def _get_file_extension(self, content_type: str, filename: str) -> str:
|
||||
if "." in filename:
|
||||
return "." + filename.rsplit(".", 1)[-1]
|
||||
|
||||
base_content_type = content_type.split(";")[0].strip()
|
||||
return _MIME_TO_EXTENSION.get(base_content_type, "")
|
||||
|
||||
@@ -0,0 +1,158 @@
|
||||
"""File processing hook for CrewAI Platform Tools.
|
||||
|
||||
This module provides a hook that processes file markers returned by platform tools
|
||||
and injects the files into the LLM context for native file handling.
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
import logging
|
||||
import os
|
||||
from typing import TYPE_CHECKING
|
||||
|
||||
if TYPE_CHECKING:
|
||||
from crewai.hooks.tool_hooks import ToolCallHookContext
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
_FILE_MARKER_PREFIX = "__CREWAI_FILE__"
|
||||
|
||||
_hook_registered = False
|
||||
|
||||
|
||||
def process_file_markers(context: ToolCallHookContext) -> str | None:
|
||||
"""Process file markers in tool results and inject files into context.
|
||||
|
||||
This hook detects file markers returned by platform tools (e.g., download_file)
|
||||
and converts them into FileInput objects that are attached to the hook context.
|
||||
The agent executor will then inject these files into the tool message for
|
||||
native LLM file handling.
|
||||
|
||||
The marker format is:
|
||||
__CREWAI_FILE__:filename:content_type:file_path
|
||||
|
||||
Args:
|
||||
context: The tool call hook context containing the tool result.
|
||||
|
||||
Returns:
|
||||
A human-readable message if a file was processed, None otherwise.
|
||||
"""
|
||||
result = context.tool_result
|
||||
|
||||
if not result or not result.startswith(_FILE_MARKER_PREFIX):
|
||||
return None
|
||||
|
||||
try:
|
||||
parts = result.split(":", 3)
|
||||
if len(parts) < 4:
|
||||
logger.warning(f"Invalid file marker format: {result[:100]}")
|
||||
return None
|
||||
|
||||
_, filename, content_type, file_path = parts
|
||||
|
||||
if not os.path.isfile(file_path):
|
||||
logger.error(f"File not found: {file_path}")
|
||||
return f"Error: Downloaded file not found at {file_path}"
|
||||
|
||||
try:
|
||||
from crewai_files import File
|
||||
except ImportError:
|
||||
logger.warning(
|
||||
"crewai_files not installed. File will not be attached to LLM context."
|
||||
)
|
||||
return (
|
||||
f"Downloaded file: {filename} ({content_type}). "
|
||||
f"File saved at: {file_path}. "
|
||||
"Note: Install crewai_files for native LLM file handling."
|
||||
)
|
||||
|
||||
file = File(source=file_path, content_type=content_type, filename=filename)
|
||||
|
||||
context.files = {filename: file}
|
||||
|
||||
file_size = os.path.getsize(file_path)
|
||||
size_str = _format_file_size(file_size)
|
||||
|
||||
return f"Downloaded file: {filename} ({content_type}, {size_str}). File is attached for LLM analysis."
|
||||
|
||||
except Exception as e:
|
||||
logger.exception(f"Error processing file marker: {e}")
|
||||
return f"Error processing downloaded file: {e}"
|
||||
|
||||
|
||||
def _format_file_size(size_bytes: int) -> str:
|
||||
"""Format file size in human-readable format.
|
||||
|
||||
Args:
|
||||
size_bytes: Size in bytes.
|
||||
|
||||
Returns:
|
||||
Human-readable size string.
|
||||
"""
|
||||
if size_bytes < 1024:
|
||||
return f"{size_bytes} bytes"
|
||||
elif size_bytes < 1024 * 1024:
|
||||
return f"{size_bytes / 1024:.1f} KB"
|
||||
elif size_bytes < 1024 * 1024 * 1024:
|
||||
return f"{size_bytes / (1024 * 1024):.1f} MB"
|
||||
else:
|
||||
return f"{size_bytes / (1024 * 1024 * 1024):.1f} GB"
|
||||
|
||||
|
||||
def register_file_processing_hook() -> bool:
|
||||
"""Register the file processing hook globally.
|
||||
|
||||
This function should be called once during application initialization
|
||||
to enable automatic file injection for platform tools.
|
||||
|
||||
Returns:
|
||||
True if the hook was registered, False if it was already registered
|
||||
or if registration failed.
|
||||
"""
|
||||
global _hook_registered
|
||||
|
||||
if _hook_registered:
|
||||
logger.debug("File processing hook already registered")
|
||||
return False
|
||||
|
||||
try:
|
||||
from crewai.hooks import register_after_tool_call_hook
|
||||
|
||||
register_after_tool_call_hook(process_file_markers)
|
||||
_hook_registered = True
|
||||
logger.info("File processing hook registered successfully")
|
||||
return True
|
||||
except ImportError:
|
||||
logger.warning(
|
||||
"crewai.hooks not available. File processing hook not registered."
|
||||
)
|
||||
return False
|
||||
except Exception as e:
|
||||
logger.exception(f"Failed to register file processing hook: {e}")
|
||||
return False
|
||||
|
||||
|
||||
def unregister_file_processing_hook() -> bool:
|
||||
"""Unregister the file processing hook.
|
||||
|
||||
Returns:
|
||||
True if the hook was unregistered, False if it wasn't registered
|
||||
or if unregistration failed.
|
||||
"""
|
||||
global _hook_registered
|
||||
|
||||
if not _hook_registered:
|
||||
return False
|
||||
|
||||
try:
|
||||
from crewai.hooks import unregister_after_tool_call_hook
|
||||
|
||||
unregister_after_tool_call_hook(process_file_markers)
|
||||
_hook_registered = False
|
||||
logger.info("File processing hook unregistered")
|
||||
return True
|
||||
except ImportError:
|
||||
return False
|
||||
except Exception as e:
|
||||
logger.exception(f"Failed to unregister file processing hook: {e}")
|
||||
return False
|
||||
@@ -49,7 +49,7 @@ Repository = "https://github.com/crewAIInc/crewAI"
|
||||
|
||||
[project.optional-dependencies]
|
||||
tools = [
|
||||
"crewai-tools==1.9.3",
|
||||
"crewai-tools==1.9.2",
|
||||
]
|
||||
embeddings = [
|
||||
"tiktoken~=0.8.0"
|
||||
|
||||
@@ -40,7 +40,7 @@ def _suppress_pydantic_deprecation_warnings() -> None:
|
||||
|
||||
_suppress_pydantic_deprecation_warnings()
|
||||
|
||||
__version__ = "1.9.3"
|
||||
__version__ = "1.9.2"
|
||||
_telemetry_submitted = False
|
||||
|
||||
|
||||
|
||||
@@ -1,36 +1,20 @@
|
||||
"""A2A authentication schemas."""
|
||||
|
||||
from crewai.a2a.auth.client_schemes import (
|
||||
from crewai.a2a.auth.schemas import (
|
||||
APIKeyAuth,
|
||||
AuthScheme,
|
||||
BearerTokenAuth,
|
||||
ClientAuthScheme,
|
||||
HTTPBasicAuth,
|
||||
HTTPDigestAuth,
|
||||
OAuth2AuthorizationCode,
|
||||
OAuth2ClientCredentials,
|
||||
TLSConfig,
|
||||
)
|
||||
from crewai.a2a.auth.server_schemes import (
|
||||
AuthenticatedUser,
|
||||
OIDCAuth,
|
||||
ServerAuthScheme,
|
||||
SimpleTokenAuth,
|
||||
)
|
||||
|
||||
|
||||
__all__ = [
|
||||
"APIKeyAuth",
|
||||
"AuthScheme",
|
||||
"AuthenticatedUser",
|
||||
"BearerTokenAuth",
|
||||
"ClientAuthScheme",
|
||||
"HTTPBasicAuth",
|
||||
"HTTPDigestAuth",
|
||||
"OAuth2AuthorizationCode",
|
||||
"OAuth2ClientCredentials",
|
||||
"OIDCAuth",
|
||||
"ServerAuthScheme",
|
||||
"SimpleTokenAuth",
|
||||
"TLSConfig",
|
||||
]
|
||||
|
||||
@@ -1,550 +0,0 @@
|
||||
"""Authentication schemes for A2A protocol clients.
|
||||
|
||||
Supported authentication methods:
|
||||
- Bearer tokens
|
||||
- OAuth2 (Client Credentials, Authorization Code)
|
||||
- API Keys (header, query, cookie)
|
||||
- HTTP Basic authentication
|
||||
- HTTP Digest authentication
|
||||
- mTLS (mutual TLS) client certificate authentication
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from abc import ABC, abstractmethod
|
||||
import asyncio
|
||||
import base64
|
||||
from collections.abc import Awaitable, Callable, MutableMapping
|
||||
from pathlib import Path
|
||||
import ssl
|
||||
import time
|
||||
from typing import TYPE_CHECKING, ClassVar, Literal
|
||||
import urllib.parse
|
||||
|
||||
import httpx
|
||||
from httpx import DigestAuth
|
||||
from pydantic import BaseModel, ConfigDict, Field, FilePath, PrivateAttr
|
||||
from typing_extensions import deprecated
|
||||
|
||||
|
||||
if TYPE_CHECKING:
|
||||
import grpc # type: ignore[import-untyped]
|
||||
|
||||
|
||||
class TLSConfig(BaseModel):
|
||||
"""TLS/mTLS configuration for secure client connections.
|
||||
|
||||
Supports mutual TLS (mTLS) where the client presents a certificate to the server,
|
||||
and standard TLS with custom CA verification.
|
||||
|
||||
Attributes:
|
||||
client_cert_path: Path to client certificate file (PEM format) for mTLS.
|
||||
client_key_path: Path to client private key file (PEM format) for mTLS.
|
||||
ca_cert_path: Path to CA certificate bundle for server verification.
|
||||
verify: Whether to verify server certificates. Set False only for development.
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
|
||||
client_cert_path: FilePath | None = Field(
|
||||
default=None,
|
||||
description="Path to client certificate file (PEM format) for mTLS",
|
||||
)
|
||||
client_key_path: FilePath | None = Field(
|
||||
default=None,
|
||||
description="Path to client private key file (PEM format) for mTLS",
|
||||
)
|
||||
ca_cert_path: FilePath | None = Field(
|
||||
default=None,
|
||||
description="Path to CA certificate bundle for server verification",
|
||||
)
|
||||
verify: bool = Field(
|
||||
default=True,
|
||||
description="Whether to verify server certificates. Set False only for development.",
|
||||
)
|
||||
|
||||
def get_httpx_ssl_context(self) -> ssl.SSLContext | bool | str:
|
||||
"""Build SSL context for httpx client.
|
||||
|
||||
Returns:
|
||||
SSL context if certificates configured, True for default verification,
|
||||
False if verification disabled, or path to CA bundle.
|
||||
"""
|
||||
if not self.verify:
|
||||
return False
|
||||
|
||||
if self.client_cert_path and self.client_key_path:
|
||||
context = ssl.create_default_context()
|
||||
|
||||
if self.ca_cert_path:
|
||||
context.load_verify_locations(cafile=str(self.ca_cert_path))
|
||||
|
||||
context.load_cert_chain(
|
||||
certfile=str(self.client_cert_path),
|
||||
keyfile=str(self.client_key_path),
|
||||
)
|
||||
return context
|
||||
|
||||
if self.ca_cert_path:
|
||||
return str(self.ca_cert_path)
|
||||
|
||||
return True
|
||||
|
||||
def get_grpc_credentials(self) -> grpc.ChannelCredentials | None: # type: ignore[no-any-unimported]
|
||||
"""Build gRPC channel credentials for secure connections.
|
||||
|
||||
Returns:
|
||||
gRPC SSL credentials if certificates configured, None otherwise.
|
||||
"""
|
||||
try:
|
||||
import grpc
|
||||
except ImportError:
|
||||
return None
|
||||
|
||||
if not self.verify and not self.client_cert_path:
|
||||
return None
|
||||
|
||||
root_certs: bytes | None = None
|
||||
private_key: bytes | None = None
|
||||
certificate_chain: bytes | None = None
|
||||
|
||||
if self.ca_cert_path:
|
||||
root_certs = Path(self.ca_cert_path).read_bytes()
|
||||
|
||||
if self.client_cert_path and self.client_key_path:
|
||||
private_key = Path(self.client_key_path).read_bytes()
|
||||
certificate_chain = Path(self.client_cert_path).read_bytes()
|
||||
|
||||
return grpc.ssl_channel_credentials(
|
||||
root_certificates=root_certs,
|
||||
private_key=private_key,
|
||||
certificate_chain=certificate_chain,
|
||||
)
|
||||
|
||||
|
||||
class ClientAuthScheme(ABC, BaseModel):
|
||||
"""Base class for client-side authentication schemes.
|
||||
|
||||
Client auth schemes apply credentials to outgoing requests.
|
||||
|
||||
Attributes:
|
||||
tls: Optional TLS/mTLS configuration for secure connections.
|
||||
"""
|
||||
|
||||
tls: TLSConfig | None = Field(
|
||||
default=None,
|
||||
description="TLS/mTLS configuration for secure connections",
|
||||
)
|
||||
|
||||
@abstractmethod
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Apply authentication to request headers.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making auth requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Updated headers with authentication applied.
|
||||
"""
|
||||
...
|
||||
|
||||
|
||||
@deprecated("Use ClientAuthScheme instead", category=FutureWarning)
|
||||
class AuthScheme(ClientAuthScheme):
|
||||
"""Deprecated: Use ClientAuthScheme instead."""
|
||||
|
||||
|
||||
class BearerTokenAuth(ClientAuthScheme):
|
||||
"""Bearer token authentication (Authorization: Bearer <token>).
|
||||
|
||||
Attributes:
|
||||
token: Bearer token for authentication.
|
||||
"""
|
||||
|
||||
token: str = Field(description="Bearer token")
|
||||
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Apply Bearer token to Authorization header.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making auth requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Updated headers with Bearer token in Authorization header.
|
||||
"""
|
||||
headers["Authorization"] = f"Bearer {self.token}"
|
||||
return headers
|
||||
|
||||
|
||||
class HTTPBasicAuth(ClientAuthScheme):
|
||||
"""HTTP Basic authentication.
|
||||
|
||||
Attributes:
|
||||
username: Username for Basic authentication.
|
||||
password: Password for Basic authentication.
|
||||
"""
|
||||
|
||||
username: str = Field(description="Username")
|
||||
password: str = Field(description="Password")
|
||||
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Apply HTTP Basic authentication.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making auth requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Updated headers with Basic auth in Authorization header.
|
||||
"""
|
||||
credentials = f"{self.username}:{self.password}"
|
||||
encoded = base64.b64encode(credentials.encode()).decode()
|
||||
headers["Authorization"] = f"Basic {encoded}"
|
||||
return headers
|
||||
|
||||
|
||||
class HTTPDigestAuth(ClientAuthScheme):
|
||||
"""HTTP Digest authentication.
|
||||
|
||||
Note: Uses httpx-auth library for digest implementation.
|
||||
|
||||
Attributes:
|
||||
username: Username for Digest authentication.
|
||||
password: Password for Digest authentication.
|
||||
"""
|
||||
|
||||
username: str = Field(description="Username")
|
||||
password: str = Field(description="Password")
|
||||
|
||||
_configured_client_id: int | None = PrivateAttr(default=None)
|
||||
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Digest auth is handled by httpx auth flow, not headers.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making auth requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Unchanged headers (Digest auth handled by httpx auth flow).
|
||||
"""
|
||||
return headers
|
||||
|
||||
def configure_client(self, client: httpx.AsyncClient) -> None:
|
||||
"""Configure client with Digest auth.
|
||||
|
||||
Idempotent: Only configures the client once. Subsequent calls on the same
|
||||
client instance are no-ops to prevent overwriting auth configuration.
|
||||
|
||||
Args:
|
||||
client: HTTP client to configure with Digest authentication.
|
||||
"""
|
||||
client_id = id(client)
|
||||
if self._configured_client_id == client_id:
|
||||
return
|
||||
|
||||
client.auth = DigestAuth(self.username, self.password)
|
||||
self._configured_client_id = client_id
|
||||
|
||||
|
||||
class APIKeyAuth(ClientAuthScheme):
|
||||
"""API Key authentication (header, query, or cookie).
|
||||
|
||||
Attributes:
|
||||
api_key: API key value for authentication.
|
||||
location: Where to send the API key (header, query, or cookie).
|
||||
name: Parameter name for the API key (default: X-API-Key).
|
||||
"""
|
||||
|
||||
api_key: str = Field(description="API key value")
|
||||
location: Literal["header", "query", "cookie"] = Field(
|
||||
default="header", description="Where to send the API key"
|
||||
)
|
||||
name: str = Field(default="X-API-Key", description="Parameter name for the API key")
|
||||
|
||||
_configured_client_ids: set[int] = PrivateAttr(default_factory=set)
|
||||
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Apply API key authentication.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making auth requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Updated headers with API key (for header/cookie locations).
|
||||
"""
|
||||
if self.location == "header":
|
||||
headers[self.name] = self.api_key
|
||||
elif self.location == "cookie":
|
||||
headers["Cookie"] = f"{self.name}={self.api_key}"
|
||||
return headers
|
||||
|
||||
def configure_client(self, client: httpx.AsyncClient) -> None:
|
||||
"""Configure client for query param API keys.
|
||||
|
||||
Idempotent: Only adds the request hook once per client instance.
|
||||
Subsequent calls on the same client are no-ops to prevent hook accumulation.
|
||||
|
||||
Args:
|
||||
client: HTTP client to configure with query param API key hook.
|
||||
"""
|
||||
if self.location == "query":
|
||||
client_id = id(client)
|
||||
if client_id in self._configured_client_ids:
|
||||
return
|
||||
|
||||
async def _add_api_key_param(request: httpx.Request) -> None:
|
||||
url = httpx.URL(request.url)
|
||||
request.url = url.copy_add_param(self.name, self.api_key)
|
||||
|
||||
client.event_hooks["request"].append(_add_api_key_param)
|
||||
self._configured_client_ids.add(client_id)
|
||||
|
||||
|
||||
class OAuth2ClientCredentials(ClientAuthScheme):
|
||||
"""OAuth2 Client Credentials flow authentication.
|
||||
|
||||
Thread-safe implementation with asyncio.Lock to prevent concurrent token fetches
|
||||
when multiple requests share the same auth instance.
|
||||
|
||||
Attributes:
|
||||
token_url: OAuth2 token endpoint URL.
|
||||
client_id: OAuth2 client identifier.
|
||||
client_secret: OAuth2 client secret.
|
||||
scopes: List of required OAuth2 scopes.
|
||||
"""
|
||||
|
||||
token_url: str = Field(description="OAuth2 token endpoint")
|
||||
client_id: str = Field(description="OAuth2 client ID")
|
||||
client_secret: str = Field(description="OAuth2 client secret")
|
||||
scopes: list[str] = Field(
|
||||
default_factory=list, description="Required OAuth2 scopes"
|
||||
)
|
||||
|
||||
_access_token: str | None = PrivateAttr(default=None)
|
||||
_token_expires_at: float | None = PrivateAttr(default=None)
|
||||
_lock: asyncio.Lock = PrivateAttr(default_factory=asyncio.Lock)
|
||||
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Apply OAuth2 access token to Authorization header.
|
||||
|
||||
Uses asyncio.Lock to ensure only one coroutine fetches tokens at a time,
|
||||
preventing race conditions when multiple concurrent requests use the same
|
||||
auth instance.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making token requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Updated headers with OAuth2 access token in Authorization header.
|
||||
"""
|
||||
if (
|
||||
self._access_token is None
|
||||
or self._token_expires_at is None
|
||||
or time.time() >= self._token_expires_at
|
||||
):
|
||||
async with self._lock:
|
||||
if (
|
||||
self._access_token is None
|
||||
or self._token_expires_at is None
|
||||
or time.time() >= self._token_expires_at
|
||||
):
|
||||
await self._fetch_token(client)
|
||||
|
||||
if self._access_token:
|
||||
headers["Authorization"] = f"Bearer {self._access_token}"
|
||||
|
||||
return headers
|
||||
|
||||
async def _fetch_token(self, client: httpx.AsyncClient) -> None:
|
||||
"""Fetch OAuth2 access token using client credentials flow.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making token request.
|
||||
|
||||
Raises:
|
||||
httpx.HTTPStatusError: If token request fails.
|
||||
"""
|
||||
data = {
|
||||
"grant_type": "client_credentials",
|
||||
"client_id": self.client_id,
|
||||
"client_secret": self.client_secret,
|
||||
}
|
||||
|
||||
if self.scopes:
|
||||
data["scope"] = " ".join(self.scopes)
|
||||
|
||||
response = await client.post(self.token_url, data=data)
|
||||
response.raise_for_status()
|
||||
|
||||
token_data = response.json()
|
||||
self._access_token = token_data["access_token"]
|
||||
expires_in = token_data.get("expires_in", 3600)
|
||||
self._token_expires_at = time.time() + expires_in - 60
|
||||
|
||||
|
||||
class OAuth2AuthorizationCode(ClientAuthScheme):
|
||||
"""OAuth2 Authorization Code flow authentication.
|
||||
|
||||
Thread-safe implementation with asyncio.Lock to prevent concurrent token operations.
|
||||
|
||||
Note: Requires interactive authorization.
|
||||
|
||||
Attributes:
|
||||
authorization_url: OAuth2 authorization endpoint URL.
|
||||
token_url: OAuth2 token endpoint URL.
|
||||
client_id: OAuth2 client identifier.
|
||||
client_secret: OAuth2 client secret.
|
||||
redirect_uri: OAuth2 redirect URI for callback.
|
||||
scopes: List of required OAuth2 scopes.
|
||||
"""
|
||||
|
||||
authorization_url: str = Field(description="OAuth2 authorization endpoint")
|
||||
token_url: str = Field(description="OAuth2 token endpoint")
|
||||
client_id: str = Field(description="OAuth2 client ID")
|
||||
client_secret: str = Field(description="OAuth2 client secret")
|
||||
redirect_uri: str = Field(description="OAuth2 redirect URI")
|
||||
scopes: list[str] = Field(
|
||||
default_factory=list, description="Required OAuth2 scopes"
|
||||
)
|
||||
|
||||
_access_token: str | None = PrivateAttr(default=None)
|
||||
_refresh_token: str | None = PrivateAttr(default=None)
|
||||
_token_expires_at: float | None = PrivateAttr(default=None)
|
||||
_authorization_callback: Callable[[str], Awaitable[str]] | None = PrivateAttr(
|
||||
default=None
|
||||
)
|
||||
_lock: asyncio.Lock = PrivateAttr(default_factory=asyncio.Lock)
|
||||
|
||||
def set_authorization_callback(
|
||||
self, callback: Callable[[str], Awaitable[str]] | None
|
||||
) -> None:
|
||||
"""Set callback to handle authorization URL.
|
||||
|
||||
Args:
|
||||
callback: Async function that receives authorization URL and returns auth code.
|
||||
"""
|
||||
self._authorization_callback = callback
|
||||
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Apply OAuth2 access token to Authorization header.
|
||||
|
||||
Uses asyncio.Lock to ensure only one coroutine handles token operations
|
||||
(initial fetch or refresh) at a time.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making token requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Updated headers with OAuth2 access token in Authorization header.
|
||||
|
||||
Raises:
|
||||
ValueError: If authorization callback is not set.
|
||||
"""
|
||||
if self._access_token is None:
|
||||
if self._authorization_callback is None:
|
||||
msg = "Authorization callback not set. Use set_authorization_callback()"
|
||||
raise ValueError(msg)
|
||||
async with self._lock:
|
||||
if self._access_token is None:
|
||||
await self._fetch_initial_token(client)
|
||||
elif self._token_expires_at and time.time() >= self._token_expires_at:
|
||||
async with self._lock:
|
||||
if self._token_expires_at and time.time() >= self._token_expires_at:
|
||||
await self._refresh_access_token(client)
|
||||
|
||||
if self._access_token:
|
||||
headers["Authorization"] = f"Bearer {self._access_token}"
|
||||
|
||||
return headers
|
||||
|
||||
async def _fetch_initial_token(self, client: httpx.AsyncClient) -> None:
|
||||
"""Fetch initial access token using authorization code flow.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making token request.
|
||||
|
||||
Raises:
|
||||
ValueError: If authorization callback is not set.
|
||||
httpx.HTTPStatusError: If token request fails.
|
||||
"""
|
||||
params = {
|
||||
"response_type": "code",
|
||||
"client_id": self.client_id,
|
||||
"redirect_uri": self.redirect_uri,
|
||||
"scope": " ".join(self.scopes),
|
||||
}
|
||||
auth_url = f"{self.authorization_url}?{urllib.parse.urlencode(params)}"
|
||||
|
||||
if self._authorization_callback is None:
|
||||
msg = "Authorization callback not set"
|
||||
raise ValueError(msg)
|
||||
auth_code = await self._authorization_callback(auth_url)
|
||||
|
||||
data = {
|
||||
"grant_type": "authorization_code",
|
||||
"code": auth_code,
|
||||
"client_id": self.client_id,
|
||||
"client_secret": self.client_secret,
|
||||
"redirect_uri": self.redirect_uri,
|
||||
}
|
||||
|
||||
response = await client.post(self.token_url, data=data)
|
||||
response.raise_for_status()
|
||||
|
||||
token_data = response.json()
|
||||
self._access_token = token_data["access_token"]
|
||||
self._refresh_token = token_data.get("refresh_token")
|
||||
|
||||
expires_in = token_data.get("expires_in", 3600)
|
||||
self._token_expires_at = time.time() + expires_in - 60
|
||||
|
||||
async def _refresh_access_token(self, client: httpx.AsyncClient) -> None:
|
||||
"""Refresh the access token using refresh token.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making token request.
|
||||
|
||||
Raises:
|
||||
httpx.HTTPStatusError: If token refresh request fails.
|
||||
"""
|
||||
if not self._refresh_token:
|
||||
await self._fetch_initial_token(client)
|
||||
return
|
||||
|
||||
data = {
|
||||
"grant_type": "refresh_token",
|
||||
"refresh_token": self._refresh_token,
|
||||
"client_id": self.client_id,
|
||||
"client_secret": self.client_secret,
|
||||
}
|
||||
|
||||
response = await client.post(self.token_url, data=data)
|
||||
response.raise_for_status()
|
||||
|
||||
token_data = response.json()
|
||||
self._access_token = token_data["access_token"]
|
||||
if "refresh_token" in token_data:
|
||||
self._refresh_token = token_data["refresh_token"]
|
||||
|
||||
expires_in = token_data.get("expires_in", 3600)
|
||||
self._token_expires_at = time.time() + expires_in - 60
|
||||
@@ -1,71 +1,392 @@
|
||||
"""Deprecated: Authentication schemes for A2A protocol agents.
|
||||
"""Authentication schemes for A2A protocol agents.
|
||||
|
||||
This module is deprecated. Import from crewai.a2a.auth instead:
|
||||
- crewai.a2a.auth.ClientAuthScheme (replaces AuthScheme)
|
||||
- crewai.a2a.auth.BearerTokenAuth
|
||||
- crewai.a2a.auth.HTTPBasicAuth
|
||||
- crewai.a2a.auth.HTTPDigestAuth
|
||||
- crewai.a2a.auth.APIKeyAuth
|
||||
- crewai.a2a.auth.OAuth2ClientCredentials
|
||||
- crewai.a2a.auth.OAuth2AuthorizationCode
|
||||
Supported authentication methods:
|
||||
- Bearer tokens
|
||||
- OAuth2 (Client Credentials, Authorization Code)
|
||||
- API Keys (header, query, cookie)
|
||||
- HTTP Basic authentication
|
||||
- HTTP Digest authentication
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from typing_extensions import deprecated
|
||||
from abc import ABC, abstractmethod
|
||||
import base64
|
||||
from collections.abc import Awaitable, Callable, MutableMapping
|
||||
import time
|
||||
from typing import Literal
|
||||
import urllib.parse
|
||||
|
||||
from crewai.a2a.auth.client_schemes import (
|
||||
APIKeyAuth as _APIKeyAuth,
|
||||
BearerTokenAuth as _BearerTokenAuth,
|
||||
ClientAuthScheme as _ClientAuthScheme,
|
||||
HTTPBasicAuth as _HTTPBasicAuth,
|
||||
HTTPDigestAuth as _HTTPDigestAuth,
|
||||
OAuth2AuthorizationCode as _OAuth2AuthorizationCode,
|
||||
OAuth2ClientCredentials as _OAuth2ClientCredentials,
|
||||
)
|
||||
import httpx
|
||||
from httpx import DigestAuth
|
||||
from pydantic import BaseModel, Field, PrivateAttr
|
||||
|
||||
|
||||
@deprecated("Use ClientAuthScheme from crewai.a2a.auth instead", category=FutureWarning)
|
||||
class AuthScheme(_ClientAuthScheme):
|
||||
"""Deprecated: Use ClientAuthScheme from crewai.a2a.auth instead."""
|
||||
class AuthScheme(ABC, BaseModel):
|
||||
"""Base class for authentication schemes."""
|
||||
|
||||
@abstractmethod
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Apply authentication to request headers.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making auth requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Updated headers with authentication applied.
|
||||
"""
|
||||
...
|
||||
|
||||
|
||||
@deprecated("Import from crewai.a2a.auth instead", category=FutureWarning)
|
||||
class BearerTokenAuth(_BearerTokenAuth):
|
||||
"""Deprecated: Import from crewai.a2a.auth instead."""
|
||||
class BearerTokenAuth(AuthScheme):
|
||||
"""Bearer token authentication (Authorization: Bearer <token>).
|
||||
|
||||
Attributes:
|
||||
token: Bearer token for authentication.
|
||||
"""
|
||||
|
||||
token: str = Field(description="Bearer token")
|
||||
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Apply Bearer token to Authorization header.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making auth requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Updated headers with Bearer token in Authorization header.
|
||||
"""
|
||||
headers["Authorization"] = f"Bearer {self.token}"
|
||||
return headers
|
||||
|
||||
|
||||
@deprecated("Import from crewai.a2a.auth instead", category=FutureWarning)
|
||||
class HTTPBasicAuth(_HTTPBasicAuth):
|
||||
"""Deprecated: Import from crewai.a2a.auth instead."""
|
||||
class HTTPBasicAuth(AuthScheme):
|
||||
"""HTTP Basic authentication.
|
||||
|
||||
Attributes:
|
||||
username: Username for Basic authentication.
|
||||
password: Password for Basic authentication.
|
||||
"""
|
||||
|
||||
username: str = Field(description="Username")
|
||||
password: str = Field(description="Password")
|
||||
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Apply HTTP Basic authentication.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making auth requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Updated headers with Basic auth in Authorization header.
|
||||
"""
|
||||
credentials = f"{self.username}:{self.password}"
|
||||
encoded = base64.b64encode(credentials.encode()).decode()
|
||||
headers["Authorization"] = f"Basic {encoded}"
|
||||
return headers
|
||||
|
||||
|
||||
@deprecated("Import from crewai.a2a.auth instead", category=FutureWarning)
|
||||
class HTTPDigestAuth(_HTTPDigestAuth):
|
||||
"""Deprecated: Import from crewai.a2a.auth instead."""
|
||||
class HTTPDigestAuth(AuthScheme):
|
||||
"""HTTP Digest authentication.
|
||||
|
||||
Note: Uses httpx-auth library for digest implementation.
|
||||
|
||||
Attributes:
|
||||
username: Username for Digest authentication.
|
||||
password: Password for Digest authentication.
|
||||
"""
|
||||
|
||||
username: str = Field(description="Username")
|
||||
password: str = Field(description="Password")
|
||||
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Digest auth is handled by httpx auth flow, not headers.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making auth requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Unchanged headers (Digest auth handled by httpx auth flow).
|
||||
"""
|
||||
return headers
|
||||
|
||||
def configure_client(self, client: httpx.AsyncClient) -> None:
|
||||
"""Configure client with Digest auth.
|
||||
|
||||
Args:
|
||||
client: HTTP client to configure with Digest authentication.
|
||||
"""
|
||||
client.auth = DigestAuth(self.username, self.password)
|
||||
|
||||
|
||||
@deprecated("Import from crewai.a2a.auth instead", category=FutureWarning)
|
||||
class APIKeyAuth(_APIKeyAuth):
|
||||
"""Deprecated: Import from crewai.a2a.auth instead."""
|
||||
class APIKeyAuth(AuthScheme):
|
||||
"""API Key authentication (header, query, or cookie).
|
||||
|
||||
Attributes:
|
||||
api_key: API key value for authentication.
|
||||
location: Where to send the API key (header, query, or cookie).
|
||||
name: Parameter name for the API key (default: X-API-Key).
|
||||
"""
|
||||
|
||||
api_key: str = Field(description="API key value")
|
||||
location: Literal["header", "query", "cookie"] = Field(
|
||||
default="header", description="Where to send the API key"
|
||||
)
|
||||
name: str = Field(default="X-API-Key", description="Parameter name for the API key")
|
||||
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Apply API key authentication.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making auth requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Updated headers with API key (for header/cookie locations).
|
||||
"""
|
||||
if self.location == "header":
|
||||
headers[self.name] = self.api_key
|
||||
elif self.location == "cookie":
|
||||
headers["Cookie"] = f"{self.name}={self.api_key}"
|
||||
return headers
|
||||
|
||||
def configure_client(self, client: httpx.AsyncClient) -> None:
|
||||
"""Configure client for query param API keys.
|
||||
|
||||
Args:
|
||||
client: HTTP client to configure with query param API key hook.
|
||||
"""
|
||||
if self.location == "query":
|
||||
|
||||
async def _add_api_key_param(request: httpx.Request) -> None:
|
||||
url = httpx.URL(request.url)
|
||||
request.url = url.copy_add_param(self.name, self.api_key)
|
||||
|
||||
client.event_hooks["request"].append(_add_api_key_param)
|
||||
|
||||
|
||||
@deprecated("Import from crewai.a2a.auth instead", category=FutureWarning)
|
||||
class OAuth2ClientCredentials(_OAuth2ClientCredentials):
|
||||
"""Deprecated: Import from crewai.a2a.auth instead."""
|
||||
class OAuth2ClientCredentials(AuthScheme):
|
||||
"""OAuth2 Client Credentials flow authentication.
|
||||
|
||||
Attributes:
|
||||
token_url: OAuth2 token endpoint URL.
|
||||
client_id: OAuth2 client identifier.
|
||||
client_secret: OAuth2 client secret.
|
||||
scopes: List of required OAuth2 scopes.
|
||||
"""
|
||||
|
||||
token_url: str = Field(description="OAuth2 token endpoint")
|
||||
client_id: str = Field(description="OAuth2 client ID")
|
||||
client_secret: str = Field(description="OAuth2 client secret")
|
||||
scopes: list[str] = Field(
|
||||
default_factory=list, description="Required OAuth2 scopes"
|
||||
)
|
||||
|
||||
_access_token: str | None = PrivateAttr(default=None)
|
||||
_token_expires_at: float | None = PrivateAttr(default=None)
|
||||
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Apply OAuth2 access token to Authorization header.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making token requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Updated headers with OAuth2 access token in Authorization header.
|
||||
"""
|
||||
if (
|
||||
self._access_token is None
|
||||
or self._token_expires_at is None
|
||||
or time.time() >= self._token_expires_at
|
||||
):
|
||||
await self._fetch_token(client)
|
||||
|
||||
if self._access_token:
|
||||
headers["Authorization"] = f"Bearer {self._access_token}"
|
||||
|
||||
return headers
|
||||
|
||||
async def _fetch_token(self, client: httpx.AsyncClient) -> None:
|
||||
"""Fetch OAuth2 access token using client credentials flow.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making token request.
|
||||
|
||||
Raises:
|
||||
httpx.HTTPStatusError: If token request fails.
|
||||
"""
|
||||
data = {
|
||||
"grant_type": "client_credentials",
|
||||
"client_id": self.client_id,
|
||||
"client_secret": self.client_secret,
|
||||
}
|
||||
|
||||
if self.scopes:
|
||||
data["scope"] = " ".join(self.scopes)
|
||||
|
||||
response = await client.post(self.token_url, data=data)
|
||||
response.raise_for_status()
|
||||
|
||||
token_data = response.json()
|
||||
self._access_token = token_data["access_token"]
|
||||
expires_in = token_data.get("expires_in", 3600)
|
||||
self._token_expires_at = time.time() + expires_in - 60
|
||||
|
||||
|
||||
@deprecated("Import from crewai.a2a.auth instead", category=FutureWarning)
|
||||
class OAuth2AuthorizationCode(_OAuth2AuthorizationCode):
|
||||
"""Deprecated: Import from crewai.a2a.auth instead."""
|
||||
class OAuth2AuthorizationCode(AuthScheme):
|
||||
"""OAuth2 Authorization Code flow authentication.
|
||||
|
||||
Note: Requires interactive authorization.
|
||||
|
||||
__all__ = [
|
||||
"APIKeyAuth",
|
||||
"AuthScheme",
|
||||
"BearerTokenAuth",
|
||||
"HTTPBasicAuth",
|
||||
"HTTPDigestAuth",
|
||||
"OAuth2AuthorizationCode",
|
||||
"OAuth2ClientCredentials",
|
||||
]
|
||||
Attributes:
|
||||
authorization_url: OAuth2 authorization endpoint URL.
|
||||
token_url: OAuth2 token endpoint URL.
|
||||
client_id: OAuth2 client identifier.
|
||||
client_secret: OAuth2 client secret.
|
||||
redirect_uri: OAuth2 redirect URI for callback.
|
||||
scopes: List of required OAuth2 scopes.
|
||||
"""
|
||||
|
||||
authorization_url: str = Field(description="OAuth2 authorization endpoint")
|
||||
token_url: str = Field(description="OAuth2 token endpoint")
|
||||
client_id: str = Field(description="OAuth2 client ID")
|
||||
client_secret: str = Field(description="OAuth2 client secret")
|
||||
redirect_uri: str = Field(description="OAuth2 redirect URI")
|
||||
scopes: list[str] = Field(
|
||||
default_factory=list, description="Required OAuth2 scopes"
|
||||
)
|
||||
|
||||
_access_token: str | None = PrivateAttr(default=None)
|
||||
_refresh_token: str | None = PrivateAttr(default=None)
|
||||
_token_expires_at: float | None = PrivateAttr(default=None)
|
||||
_authorization_callback: Callable[[str], Awaitable[str]] | None = PrivateAttr(
|
||||
default=None
|
||||
)
|
||||
|
||||
def set_authorization_callback(
|
||||
self, callback: Callable[[str], Awaitable[str]] | None
|
||||
) -> None:
|
||||
"""Set callback to handle authorization URL.
|
||||
|
||||
Args:
|
||||
callback: Async function that receives authorization URL and returns auth code.
|
||||
"""
|
||||
self._authorization_callback = callback
|
||||
|
||||
async def apply_auth(
|
||||
self, client: httpx.AsyncClient, headers: MutableMapping[str, str]
|
||||
) -> MutableMapping[str, str]:
|
||||
"""Apply OAuth2 access token to Authorization header.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making token requests.
|
||||
headers: Current request headers.
|
||||
|
||||
Returns:
|
||||
Updated headers with OAuth2 access token in Authorization header.
|
||||
|
||||
Raises:
|
||||
ValueError: If authorization callback is not set.
|
||||
"""
|
||||
|
||||
if self._access_token is None:
|
||||
if self._authorization_callback is None:
|
||||
msg = "Authorization callback not set. Use set_authorization_callback()"
|
||||
raise ValueError(msg)
|
||||
await self._fetch_initial_token(client)
|
||||
elif self._token_expires_at and time.time() >= self._token_expires_at:
|
||||
await self._refresh_access_token(client)
|
||||
|
||||
if self._access_token:
|
||||
headers["Authorization"] = f"Bearer {self._access_token}"
|
||||
|
||||
return headers
|
||||
|
||||
async def _fetch_initial_token(self, client: httpx.AsyncClient) -> None:
|
||||
"""Fetch initial access token using authorization code flow.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making token request.
|
||||
|
||||
Raises:
|
||||
ValueError: If authorization callback is not set.
|
||||
httpx.HTTPStatusError: If token request fails.
|
||||
"""
|
||||
params = {
|
||||
"response_type": "code",
|
||||
"client_id": self.client_id,
|
||||
"redirect_uri": self.redirect_uri,
|
||||
"scope": " ".join(self.scopes),
|
||||
}
|
||||
auth_url = f"{self.authorization_url}?{urllib.parse.urlencode(params)}"
|
||||
|
||||
if self._authorization_callback is None:
|
||||
msg = "Authorization callback not set"
|
||||
raise ValueError(msg)
|
||||
auth_code = await self._authorization_callback(auth_url)
|
||||
|
||||
data = {
|
||||
"grant_type": "authorization_code",
|
||||
"code": auth_code,
|
||||
"client_id": self.client_id,
|
||||
"client_secret": self.client_secret,
|
||||
"redirect_uri": self.redirect_uri,
|
||||
}
|
||||
|
||||
response = await client.post(self.token_url, data=data)
|
||||
response.raise_for_status()
|
||||
|
||||
token_data = response.json()
|
||||
self._access_token = token_data["access_token"]
|
||||
self._refresh_token = token_data.get("refresh_token")
|
||||
|
||||
expires_in = token_data.get("expires_in", 3600)
|
||||
self._token_expires_at = time.time() + expires_in - 60
|
||||
|
||||
async def _refresh_access_token(self, client: httpx.AsyncClient) -> None:
|
||||
"""Refresh the access token using refresh token.
|
||||
|
||||
Args:
|
||||
client: HTTP client for making token request.
|
||||
|
||||
Raises:
|
||||
httpx.HTTPStatusError: If token refresh request fails.
|
||||
"""
|
||||
if not self._refresh_token:
|
||||
await self._fetch_initial_token(client)
|
||||
return
|
||||
|
||||
data = {
|
||||
"grant_type": "refresh_token",
|
||||
"refresh_token": self._refresh_token,
|
||||
"client_id": self.client_id,
|
||||
"client_secret": self.client_secret,
|
||||
}
|
||||
|
||||
response = await client.post(self.token_url, data=data)
|
||||
response.raise_for_status()
|
||||
|
||||
token_data = response.json()
|
||||
self._access_token = token_data["access_token"]
|
||||
if "refresh_token" in token_data:
|
||||
self._refresh_token = token_data["refresh_token"]
|
||||
|
||||
expires_in = token_data.get("expires_in", 3600)
|
||||
self._token_expires_at = time.time() + expires_in - 60
|
||||
|
||||
@@ -1,739 +0,0 @@
|
||||
"""Server-side authentication schemes for A2A protocol.
|
||||
|
||||
These schemes validate incoming requests to A2A server endpoints.
|
||||
|
||||
Supported authentication methods:
|
||||
- Simple token validation with static bearer tokens
|
||||
- OpenID Connect with JWT validation using JWKS
|
||||
- OAuth2 with JWT validation or token introspection
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from abc import ABC, abstractmethod
|
||||
from dataclasses import dataclass
|
||||
import logging
|
||||
import os
|
||||
from typing import TYPE_CHECKING, Annotated, Any, ClassVar, Literal
|
||||
|
||||
import jwt
|
||||
from jwt import PyJWKClient
|
||||
from pydantic import (
|
||||
BaseModel,
|
||||
BeforeValidator,
|
||||
ConfigDict,
|
||||
Field,
|
||||
HttpUrl,
|
||||
PrivateAttr,
|
||||
SecretStr,
|
||||
model_validator,
|
||||
)
|
||||
from typing_extensions import Self
|
||||
|
||||
|
||||
if TYPE_CHECKING:
|
||||
from a2a.types import OAuth2SecurityScheme
|
||||
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
|
||||
try:
|
||||
from fastapi import HTTPException, status as http_status
|
||||
|
||||
HTTP_401_UNAUTHORIZED = http_status.HTTP_401_UNAUTHORIZED
|
||||
HTTP_500_INTERNAL_SERVER_ERROR = http_status.HTTP_500_INTERNAL_SERVER_ERROR
|
||||
HTTP_503_SERVICE_UNAVAILABLE = http_status.HTTP_503_SERVICE_UNAVAILABLE
|
||||
except ImportError:
|
||||
|
||||
class HTTPException(Exception): # type: ignore[no-redef] # noqa: N818
|
||||
"""Fallback HTTPException when FastAPI is not installed."""
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
status_code: int,
|
||||
detail: str | None = None,
|
||||
headers: dict[str, str] | None = None,
|
||||
) -> None:
|
||||
self.status_code = status_code
|
||||
self.detail = detail
|
||||
self.headers = headers
|
||||
super().__init__(detail)
|
||||
|
||||
HTTP_401_UNAUTHORIZED = 401
|
||||
HTTP_500_INTERNAL_SERVER_ERROR = 500
|
||||
HTTP_503_SERVICE_UNAVAILABLE = 503
|
||||
|
||||
|
||||
def _coerce_secret_str(v: str | SecretStr | None) -> SecretStr | None:
|
||||
"""Coerce string to SecretStr."""
|
||||
if v is None or isinstance(v, SecretStr):
|
||||
return v
|
||||
return SecretStr(v)
|
||||
|
||||
|
||||
CoercedSecretStr = Annotated[SecretStr, BeforeValidator(_coerce_secret_str)]
|
||||
|
||||
JWTAlgorithm = Literal[
|
||||
"RS256",
|
||||
"RS384",
|
||||
"RS512",
|
||||
"ES256",
|
||||
"ES384",
|
||||
"ES512",
|
||||
"PS256",
|
||||
"PS384",
|
||||
"PS512",
|
||||
]
|
||||
|
||||
|
||||
@dataclass
|
||||
class AuthenticatedUser:
|
||||
"""Result of successful authentication.
|
||||
|
||||
Attributes:
|
||||
token: The original token that was validated.
|
||||
scheme: Name of the authentication scheme used.
|
||||
claims: JWT claims from OIDC or OAuth2 authentication.
|
||||
"""
|
||||
|
||||
token: str
|
||||
scheme: str
|
||||
claims: dict[str, Any] | None = None
|
||||
|
||||
|
||||
class ServerAuthScheme(ABC, BaseModel):
|
||||
"""Base class for server-side authentication schemes.
|
||||
|
||||
Each scheme validates incoming requests and returns an AuthenticatedUser
|
||||
on success, or raises HTTPException on failure.
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
|
||||
@abstractmethod
|
||||
async def authenticate(self, token: str) -> AuthenticatedUser:
|
||||
"""Authenticate the provided token.
|
||||
|
||||
Args:
|
||||
token: The bearer token to authenticate.
|
||||
|
||||
Returns:
|
||||
AuthenticatedUser on successful authentication.
|
||||
|
||||
Raises:
|
||||
HTTPException: If authentication fails.
|
||||
"""
|
||||
...
|
||||
|
||||
|
||||
class SimpleTokenAuth(ServerAuthScheme):
|
||||
"""Simple bearer token authentication.
|
||||
|
||||
Validates tokens against a configured static token or AUTH_TOKEN env var.
|
||||
|
||||
Attributes:
|
||||
token: Expected token value. Falls back to AUTH_TOKEN env var if not set.
|
||||
"""
|
||||
|
||||
token: CoercedSecretStr | None = Field(
|
||||
default=None,
|
||||
description="Expected token. Falls back to AUTH_TOKEN env var.",
|
||||
)
|
||||
|
||||
def _get_expected_token(self) -> str | None:
|
||||
"""Get the expected token value."""
|
||||
if self.token:
|
||||
return self.token.get_secret_value()
|
||||
return os.environ.get("AUTH_TOKEN")
|
||||
|
||||
async def authenticate(self, token: str) -> AuthenticatedUser:
|
||||
"""Authenticate using simple token comparison.
|
||||
|
||||
Args:
|
||||
token: The bearer token to authenticate.
|
||||
|
||||
Returns:
|
||||
AuthenticatedUser on successful authentication.
|
||||
|
||||
Raises:
|
||||
HTTPException: If authentication fails.
|
||||
"""
|
||||
expected = self._get_expected_token()
|
||||
|
||||
if expected is None:
|
||||
logger.warning(
|
||||
"Simple token authentication failed",
|
||||
extra={"reason": "no_token_configured"},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail="Authentication not configured",
|
||||
)
|
||||
|
||||
if token != expected:
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail="Invalid or missing authentication credentials",
|
||||
)
|
||||
|
||||
return AuthenticatedUser(
|
||||
token=token,
|
||||
scheme="simple_token",
|
||||
)
|
||||
|
||||
|
||||
class OIDCAuth(ServerAuthScheme):
|
||||
"""OpenID Connect authentication.
|
||||
|
||||
Validates JWTs using JWKS with caching support via PyJWT.
|
||||
|
||||
Attributes:
|
||||
issuer: The OpenID Connect issuer URL.
|
||||
audience: The expected audience claim.
|
||||
jwks_url: Optional explicit JWKS URL. Derived from issuer if not set.
|
||||
algorithms: List of allowed signing algorithms.
|
||||
required_claims: List of claims that must be present in the token.
|
||||
jwks_cache_ttl: TTL for JWKS cache in seconds.
|
||||
clock_skew_seconds: Allowed clock skew for token validation.
|
||||
"""
|
||||
|
||||
issuer: HttpUrl = Field(
|
||||
description="OpenID Connect issuer URL (e.g., https://auth.example.com)"
|
||||
)
|
||||
audience: str = Field(description="Expected audience claim (e.g., api://my-agent)")
|
||||
jwks_url: HttpUrl | None = Field(
|
||||
default=None,
|
||||
description="Explicit JWKS URL. Derived from issuer if not set.",
|
||||
)
|
||||
algorithms: list[str] = Field(
|
||||
default_factory=lambda: ["RS256"],
|
||||
description="List of allowed signing algorithms (RS256, ES256, etc.)",
|
||||
)
|
||||
required_claims: list[str] = Field(
|
||||
default_factory=lambda: ["exp", "iat", "iss", "aud", "sub"],
|
||||
description="List of claims that must be present in the token",
|
||||
)
|
||||
jwks_cache_ttl: int = Field(
|
||||
default=3600,
|
||||
description="TTL for JWKS cache in seconds",
|
||||
ge=60,
|
||||
)
|
||||
clock_skew_seconds: float = Field(
|
||||
default=30.0,
|
||||
description="Allowed clock skew for token validation",
|
||||
ge=0.0,
|
||||
)
|
||||
|
||||
_jwk_client: PyJWKClient | None = PrivateAttr(default=None)
|
||||
|
||||
@model_validator(mode="after")
|
||||
def _init_jwk_client(self) -> Self:
|
||||
"""Initialize the JWK client after model creation."""
|
||||
jwks_url = (
|
||||
str(self.jwks_url)
|
||||
if self.jwks_url
|
||||
else f"{str(self.issuer).rstrip('/')}/.well-known/jwks.json"
|
||||
)
|
||||
self._jwk_client = PyJWKClient(jwks_url, lifespan=self.jwks_cache_ttl)
|
||||
return self
|
||||
|
||||
async def authenticate(self, token: str) -> AuthenticatedUser:
|
||||
"""Authenticate using OIDC JWT validation.
|
||||
|
||||
Args:
|
||||
token: The JWT to authenticate.
|
||||
|
||||
Returns:
|
||||
AuthenticatedUser on successful authentication.
|
||||
|
||||
Raises:
|
||||
HTTPException: If authentication fails.
|
||||
"""
|
||||
if self._jwk_client is None:
|
||||
raise HTTPException(
|
||||
status_code=HTTP_500_INTERNAL_SERVER_ERROR,
|
||||
detail="OIDC not initialized",
|
||||
)
|
||||
|
||||
try:
|
||||
signing_key = self._jwk_client.get_signing_key_from_jwt(token)
|
||||
|
||||
claims = jwt.decode(
|
||||
token,
|
||||
signing_key.key,
|
||||
algorithms=self.algorithms,
|
||||
audience=self.audience,
|
||||
issuer=str(self.issuer).rstrip("/"),
|
||||
leeway=self.clock_skew_seconds,
|
||||
options={
|
||||
"require": self.required_claims,
|
||||
},
|
||||
)
|
||||
|
||||
return AuthenticatedUser(
|
||||
token=token,
|
||||
scheme="oidc",
|
||||
claims=claims,
|
||||
)
|
||||
|
||||
except jwt.ExpiredSignatureError:
|
||||
logger.debug(
|
||||
"OIDC authentication failed",
|
||||
extra={"reason": "token_expired", "scheme": "oidc"},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail="Token has expired",
|
||||
) from None
|
||||
except jwt.InvalidAudienceError:
|
||||
logger.debug(
|
||||
"OIDC authentication failed",
|
||||
extra={"reason": "invalid_audience", "scheme": "oidc"},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail="Invalid token audience",
|
||||
) from None
|
||||
except jwt.InvalidIssuerError:
|
||||
logger.debug(
|
||||
"OIDC authentication failed",
|
||||
extra={"reason": "invalid_issuer", "scheme": "oidc"},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail="Invalid token issuer",
|
||||
) from None
|
||||
except jwt.MissingRequiredClaimError as e:
|
||||
logger.debug(
|
||||
"OIDC authentication failed",
|
||||
extra={"reason": "missing_claim", "claim": e.claim, "scheme": "oidc"},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail=f"Missing required claim: {e.claim}",
|
||||
) from None
|
||||
except jwt.PyJWKClientError as e:
|
||||
logger.error(
|
||||
"OIDC authentication failed",
|
||||
extra={
|
||||
"reason": "jwks_client_error",
|
||||
"error": str(e),
|
||||
"scheme": "oidc",
|
||||
},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_503_SERVICE_UNAVAILABLE,
|
||||
detail="Unable to fetch signing keys",
|
||||
) from None
|
||||
except jwt.InvalidTokenError as e:
|
||||
logger.debug(
|
||||
"OIDC authentication failed",
|
||||
extra={"reason": "invalid_token", "error": str(e), "scheme": "oidc"},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail="Invalid or missing authentication credentials",
|
||||
) from None
|
||||
|
||||
|
||||
class OAuth2ServerAuth(ServerAuthScheme):
|
||||
"""OAuth2 authentication for A2A server.
|
||||
|
||||
Declares OAuth2 security scheme in AgentCard and validates tokens using
|
||||
either JWKS for JWT tokens or token introspection for opaque tokens.
|
||||
|
||||
This is distinct from OIDCAuth in that it declares an explicit OAuth2SecurityScheme
|
||||
with flows, rather than an OpenIdConnectSecurityScheme with discovery URL.
|
||||
|
||||
Attributes:
|
||||
token_url: OAuth2 token endpoint URL for client_credentials flow.
|
||||
authorization_url: OAuth2 authorization endpoint for authorization_code flow.
|
||||
refresh_url: Optional refresh token endpoint URL.
|
||||
scopes: Available OAuth2 scopes with descriptions.
|
||||
jwks_url: JWKS URL for JWT validation. Required if not using introspection.
|
||||
introspection_url: Token introspection endpoint (RFC 7662). Alternative to JWKS.
|
||||
introspection_client_id: Client ID for introspection endpoint authentication.
|
||||
introspection_client_secret: Client secret for introspection endpoint.
|
||||
audience: Expected audience claim for JWT validation.
|
||||
issuer: Expected issuer claim for JWT validation.
|
||||
algorithms: Allowed JWT signing algorithms.
|
||||
required_claims: Claims that must be present in the token.
|
||||
jwks_cache_ttl: TTL for JWKS cache in seconds.
|
||||
clock_skew_seconds: Allowed clock skew for token validation.
|
||||
"""
|
||||
|
||||
token_url: HttpUrl = Field(
|
||||
description="OAuth2 token endpoint URL",
|
||||
)
|
||||
authorization_url: HttpUrl | None = Field(
|
||||
default=None,
|
||||
description="OAuth2 authorization endpoint URL for authorization_code flow",
|
||||
)
|
||||
refresh_url: HttpUrl | None = Field(
|
||||
default=None,
|
||||
description="OAuth2 refresh token endpoint URL",
|
||||
)
|
||||
scopes: dict[str, str] = Field(
|
||||
default_factory=dict,
|
||||
description="Available OAuth2 scopes with descriptions",
|
||||
)
|
||||
jwks_url: HttpUrl | None = Field(
|
||||
default=None,
|
||||
description="JWKS URL for JWT validation. Required if not using introspection.",
|
||||
)
|
||||
introspection_url: HttpUrl | None = Field(
|
||||
default=None,
|
||||
description="Token introspection endpoint (RFC 7662). Alternative to JWKS.",
|
||||
)
|
||||
introspection_client_id: str | None = Field(
|
||||
default=None,
|
||||
description="Client ID for introspection endpoint authentication",
|
||||
)
|
||||
introspection_client_secret: CoercedSecretStr | None = Field(
|
||||
default=None,
|
||||
description="Client secret for introspection endpoint authentication",
|
||||
)
|
||||
audience: str | None = Field(
|
||||
default=None,
|
||||
description="Expected audience claim for JWT validation",
|
||||
)
|
||||
issuer: str | None = Field(
|
||||
default=None,
|
||||
description="Expected issuer claim for JWT validation",
|
||||
)
|
||||
algorithms: list[str] = Field(
|
||||
default_factory=lambda: ["RS256"],
|
||||
description="Allowed JWT signing algorithms",
|
||||
)
|
||||
required_claims: list[str] = Field(
|
||||
default_factory=lambda: ["exp", "iat"],
|
||||
description="Claims that must be present in the token",
|
||||
)
|
||||
jwks_cache_ttl: int = Field(
|
||||
default=3600,
|
||||
description="TTL for JWKS cache in seconds",
|
||||
ge=60,
|
||||
)
|
||||
clock_skew_seconds: float = Field(
|
||||
default=30.0,
|
||||
description="Allowed clock skew for token validation",
|
||||
ge=0.0,
|
||||
)
|
||||
|
||||
_jwk_client: PyJWKClient | None = PrivateAttr(default=None)
|
||||
|
||||
@model_validator(mode="after")
|
||||
def _validate_and_init(self) -> Self:
|
||||
"""Validate configuration and initialize JWKS client if needed."""
|
||||
if not self.jwks_url and not self.introspection_url:
|
||||
raise ValueError(
|
||||
"Either jwks_url or introspection_url must be provided for token validation"
|
||||
)
|
||||
|
||||
if self.introspection_url:
|
||||
if not self.introspection_client_id or not self.introspection_client_secret:
|
||||
raise ValueError(
|
||||
"introspection_client_id and introspection_client_secret are required "
|
||||
"when using token introspection"
|
||||
)
|
||||
|
||||
if self.jwks_url:
|
||||
self._jwk_client = PyJWKClient(
|
||||
str(self.jwks_url), lifespan=self.jwks_cache_ttl
|
||||
)
|
||||
|
||||
return self
|
||||
|
||||
async def authenticate(self, token: str) -> AuthenticatedUser:
|
||||
"""Authenticate using OAuth2 token validation.
|
||||
|
||||
Uses JWKS validation if jwks_url is configured, otherwise falls back
|
||||
to token introspection.
|
||||
|
||||
Args:
|
||||
token: The OAuth2 access token to authenticate.
|
||||
|
||||
Returns:
|
||||
AuthenticatedUser on successful authentication.
|
||||
|
||||
Raises:
|
||||
HTTPException: If authentication fails.
|
||||
"""
|
||||
if self._jwk_client:
|
||||
return await self._authenticate_jwt(token)
|
||||
return await self._authenticate_introspection(token)
|
||||
|
||||
async def _authenticate_jwt(self, token: str) -> AuthenticatedUser:
|
||||
"""Authenticate using JWKS JWT validation."""
|
||||
if self._jwk_client is None:
|
||||
raise HTTPException(
|
||||
status_code=HTTP_500_INTERNAL_SERVER_ERROR,
|
||||
detail="OAuth2 JWKS not initialized",
|
||||
)
|
||||
|
||||
try:
|
||||
signing_key = self._jwk_client.get_signing_key_from_jwt(token)
|
||||
|
||||
decode_options: dict[str, Any] = {
|
||||
"require": self.required_claims,
|
||||
}
|
||||
|
||||
claims = jwt.decode(
|
||||
token,
|
||||
signing_key.key,
|
||||
algorithms=self.algorithms,
|
||||
audience=self.audience,
|
||||
issuer=self.issuer,
|
||||
leeway=self.clock_skew_seconds,
|
||||
options=decode_options,
|
||||
)
|
||||
|
||||
return AuthenticatedUser(
|
||||
token=token,
|
||||
scheme="oauth2",
|
||||
claims=claims,
|
||||
)
|
||||
|
||||
except jwt.ExpiredSignatureError:
|
||||
logger.debug(
|
||||
"OAuth2 authentication failed",
|
||||
extra={"reason": "token_expired", "scheme": "oauth2"},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail="Token has expired",
|
||||
) from None
|
||||
except jwt.InvalidAudienceError:
|
||||
logger.debug(
|
||||
"OAuth2 authentication failed",
|
||||
extra={"reason": "invalid_audience", "scheme": "oauth2"},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail="Invalid token audience",
|
||||
) from None
|
||||
except jwt.InvalidIssuerError:
|
||||
logger.debug(
|
||||
"OAuth2 authentication failed",
|
||||
extra={"reason": "invalid_issuer", "scheme": "oauth2"},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail="Invalid token issuer",
|
||||
) from None
|
||||
except jwt.MissingRequiredClaimError as e:
|
||||
logger.debug(
|
||||
"OAuth2 authentication failed",
|
||||
extra={"reason": "missing_claim", "claim": e.claim, "scheme": "oauth2"},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail=f"Missing required claim: {e.claim}",
|
||||
) from None
|
||||
except jwt.PyJWKClientError as e:
|
||||
logger.error(
|
||||
"OAuth2 authentication failed",
|
||||
extra={
|
||||
"reason": "jwks_client_error",
|
||||
"error": str(e),
|
||||
"scheme": "oauth2",
|
||||
},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_503_SERVICE_UNAVAILABLE,
|
||||
detail="Unable to fetch signing keys",
|
||||
) from None
|
||||
except jwt.InvalidTokenError as e:
|
||||
logger.debug(
|
||||
"OAuth2 authentication failed",
|
||||
extra={"reason": "invalid_token", "error": str(e), "scheme": "oauth2"},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail="Invalid or missing authentication credentials",
|
||||
) from None
|
||||
|
||||
async def _authenticate_introspection(self, token: str) -> AuthenticatedUser:
|
||||
"""Authenticate using OAuth2 token introspection (RFC 7662)."""
|
||||
import httpx
|
||||
|
||||
if not self.introspection_url:
|
||||
raise HTTPException(
|
||||
status_code=HTTP_500_INTERNAL_SERVER_ERROR,
|
||||
detail="OAuth2 introspection not configured",
|
||||
)
|
||||
|
||||
try:
|
||||
async with httpx.AsyncClient() as client:
|
||||
response = await client.post(
|
||||
str(self.introspection_url),
|
||||
data={"token": token},
|
||||
auth=(
|
||||
self.introspection_client_id or "",
|
||||
self.introspection_client_secret.get_secret_value()
|
||||
if self.introspection_client_secret
|
||||
else "",
|
||||
),
|
||||
)
|
||||
response.raise_for_status()
|
||||
introspection_result = response.json()
|
||||
|
||||
except httpx.HTTPStatusError as e:
|
||||
logger.error(
|
||||
"OAuth2 introspection failed",
|
||||
extra={"reason": "http_error", "status_code": e.response.status_code},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_503_SERVICE_UNAVAILABLE,
|
||||
detail="Token introspection service unavailable",
|
||||
) from None
|
||||
except Exception as e:
|
||||
logger.error(
|
||||
"OAuth2 introspection failed",
|
||||
extra={"reason": "unexpected_error", "error": str(e)},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_503_SERVICE_UNAVAILABLE,
|
||||
detail="Token introspection failed",
|
||||
) from None
|
||||
|
||||
if not introspection_result.get("active", False):
|
||||
logger.debug(
|
||||
"OAuth2 authentication failed",
|
||||
extra={"reason": "token_not_active", "scheme": "oauth2"},
|
||||
)
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail="Token is not active",
|
||||
)
|
||||
|
||||
return AuthenticatedUser(
|
||||
token=token,
|
||||
scheme="oauth2",
|
||||
claims=introspection_result,
|
||||
)
|
||||
|
||||
def to_security_scheme(self) -> OAuth2SecurityScheme:
|
||||
"""Generate OAuth2SecurityScheme for AgentCard declaration.
|
||||
|
||||
Creates an OAuth2SecurityScheme with appropriate flows based on
|
||||
the configured URLs. Includes client_credentials flow if token_url
|
||||
is set, and authorization_code flow if authorization_url is set.
|
||||
|
||||
Returns:
|
||||
OAuth2SecurityScheme suitable for use in AgentCard security_schemes.
|
||||
"""
|
||||
from a2a.types import (
|
||||
AuthorizationCodeOAuthFlow,
|
||||
ClientCredentialsOAuthFlow,
|
||||
OAuth2SecurityScheme,
|
||||
OAuthFlows,
|
||||
)
|
||||
|
||||
client_credentials = None
|
||||
authorization_code = None
|
||||
|
||||
if self.token_url:
|
||||
client_credentials = ClientCredentialsOAuthFlow(
|
||||
token_url=str(self.token_url),
|
||||
refresh_url=str(self.refresh_url) if self.refresh_url else None,
|
||||
scopes=self.scopes,
|
||||
)
|
||||
|
||||
if self.authorization_url:
|
||||
authorization_code = AuthorizationCodeOAuthFlow(
|
||||
authorization_url=str(self.authorization_url),
|
||||
token_url=str(self.token_url),
|
||||
refresh_url=str(self.refresh_url) if self.refresh_url else None,
|
||||
scopes=self.scopes,
|
||||
)
|
||||
|
||||
return OAuth2SecurityScheme(
|
||||
flows=OAuthFlows(
|
||||
client_credentials=client_credentials,
|
||||
authorization_code=authorization_code,
|
||||
),
|
||||
description="OAuth2 authentication",
|
||||
)
|
||||
|
||||
|
||||
class APIKeyServerAuth(ServerAuthScheme):
|
||||
"""API Key authentication for A2A server.
|
||||
|
||||
Validates requests using an API key in a header, query parameter, or cookie.
|
||||
|
||||
Attributes:
|
||||
name: The name of the API key parameter (default: X-API-Key).
|
||||
location: Where to look for the API key (header, query, or cookie).
|
||||
api_key: The expected API key value.
|
||||
"""
|
||||
|
||||
name: str = Field(
|
||||
default="X-API-Key",
|
||||
description="Name of the API key parameter",
|
||||
)
|
||||
location: Literal["header", "query", "cookie"] = Field(
|
||||
default="header",
|
||||
description="Where to look for the API key",
|
||||
)
|
||||
api_key: CoercedSecretStr = Field(
|
||||
description="Expected API key value",
|
||||
)
|
||||
|
||||
async def authenticate(self, token: str) -> AuthenticatedUser:
|
||||
"""Authenticate using API key comparison.
|
||||
|
||||
Args:
|
||||
token: The API key to authenticate.
|
||||
|
||||
Returns:
|
||||
AuthenticatedUser on successful authentication.
|
||||
|
||||
Raises:
|
||||
HTTPException: If authentication fails.
|
||||
"""
|
||||
if token != self.api_key.get_secret_value():
|
||||
raise HTTPException(
|
||||
status_code=HTTP_401_UNAUTHORIZED,
|
||||
detail="Invalid API key",
|
||||
)
|
||||
|
||||
return AuthenticatedUser(
|
||||
token=token,
|
||||
scheme="api_key",
|
||||
)
|
||||
|
||||
|
||||
class MTLSServerAuth(ServerAuthScheme):
|
||||
"""Mutual TLS authentication marker for AgentCard declaration.
|
||||
|
||||
This scheme is primarily for AgentCard security_schemes declaration.
|
||||
Actual mTLS verification happens at the TLS/transport layer, not
|
||||
at the application layer via token validation.
|
||||
|
||||
When configured, this signals to clients that the server requires
|
||||
client certificates for authentication.
|
||||
"""
|
||||
|
||||
description: str = Field(
|
||||
default="Mutual TLS certificate authentication",
|
||||
description="Description for the security scheme",
|
||||
)
|
||||
|
||||
async def authenticate(self, token: str) -> AuthenticatedUser:
|
||||
"""Return authenticated user for mTLS.
|
||||
|
||||
mTLS verification happens at the transport layer before this is called.
|
||||
If we reach this point, the TLS handshake with client cert succeeded.
|
||||
|
||||
Args:
|
||||
token: Certificate subject or identifier (from TLS layer).
|
||||
|
||||
Returns:
|
||||
AuthenticatedUser indicating mTLS authentication.
|
||||
"""
|
||||
return AuthenticatedUser(
|
||||
token=token or "mtls-verified",
|
||||
scheme="mtls",
|
||||
)
|
||||
@@ -6,10 +6,8 @@ OAuth2, API keys, and HTTP authentication methods.
|
||||
|
||||
import asyncio
|
||||
from collections.abc import Awaitable, Callable, MutableMapping
|
||||
import hashlib
|
||||
import re
|
||||
import threading
|
||||
from typing import Final, Literal, cast
|
||||
from typing import Final
|
||||
|
||||
from a2a.client.errors import A2AClientHTTPError
|
||||
from a2a.types import (
|
||||
@@ -20,10 +18,10 @@ from a2a.types import (
|
||||
)
|
||||
from httpx import AsyncClient, Response
|
||||
|
||||
from crewai.a2a.auth.client_schemes import (
|
||||
from crewai.a2a.auth.schemas import (
|
||||
APIKeyAuth,
|
||||
AuthScheme,
|
||||
BearerTokenAuth,
|
||||
ClientAuthScheme,
|
||||
HTTPBasicAuth,
|
||||
HTTPDigestAuth,
|
||||
OAuth2AuthorizationCode,
|
||||
@@ -31,44 +29,12 @@ from crewai.a2a.auth.client_schemes import (
|
||||
)
|
||||
|
||||
|
||||
class _AuthStore:
|
||||
"""Store for authentication schemes with safe concurrent access."""
|
||||
|
||||
def __init__(self) -> None:
|
||||
self._store: dict[str, ClientAuthScheme | None] = {}
|
||||
self._lock = threading.RLock()
|
||||
|
||||
@staticmethod
|
||||
def compute_key(auth_type: str, auth_data: str) -> str:
|
||||
"""Compute a collision-resistant key using SHA-256."""
|
||||
content = f"{auth_type}:{auth_data}"
|
||||
return hashlib.sha256(content.encode()).hexdigest()
|
||||
|
||||
def set(self, key: str, auth: ClientAuthScheme | None) -> None:
|
||||
"""Store an auth scheme."""
|
||||
with self._lock:
|
||||
self._store[key] = auth
|
||||
|
||||
def get(self, key: str) -> ClientAuthScheme | None:
|
||||
"""Retrieve an auth scheme by key."""
|
||||
with self._lock:
|
||||
return self._store.get(key)
|
||||
|
||||
def __setitem__(self, key: str, value: ClientAuthScheme | None) -> None:
|
||||
with self._lock:
|
||||
self._store[key] = value
|
||||
|
||||
def __getitem__(self, key: str) -> ClientAuthScheme | None:
|
||||
with self._lock:
|
||||
return self._store[key]
|
||||
|
||||
|
||||
_auth_store = _AuthStore()
|
||||
_auth_store: dict[int, AuthScheme | None] = {}
|
||||
|
||||
_SCHEME_PATTERN: Final[re.Pattern[str]] = re.compile(r"(\w+)\s+(.+?)(?=,\s*\w+\s+|$)")
|
||||
_PARAM_PATTERN: Final[re.Pattern[str]] = re.compile(r'(\w+)=(?:"([^"]*)"|([^\s,]+))')
|
||||
|
||||
_SCHEME_AUTH_MAPPING: Final[dict[type, tuple[type[ClientAuthScheme], ...]]] = {
|
||||
_SCHEME_AUTH_MAPPING: Final[dict[type, tuple[type[AuthScheme], ...]]] = {
|
||||
OAuth2SecurityScheme: (
|
||||
OAuth2ClientCredentials,
|
||||
OAuth2AuthorizationCode,
|
||||
@@ -77,9 +43,7 @@ _SCHEME_AUTH_MAPPING: Final[dict[type, tuple[type[ClientAuthScheme], ...]]] = {
|
||||
APIKeySecurityScheme: (APIKeyAuth,),
|
||||
}
|
||||
|
||||
_HTTPSchemeType = Literal["basic", "digest", "bearer"]
|
||||
|
||||
_HTTP_SCHEME_MAPPING: Final[dict[_HTTPSchemeType, type[ClientAuthScheme]]] = {
|
||||
_HTTP_SCHEME_MAPPING: Final[dict[str, type[AuthScheme]]] = {
|
||||
"basic": HTTPBasicAuth,
|
||||
"digest": HTTPDigestAuth,
|
||||
"bearer": BearerTokenAuth,
|
||||
@@ -87,8 +51,8 @@ _HTTP_SCHEME_MAPPING: Final[dict[_HTTPSchemeType, type[ClientAuthScheme]]] = {
|
||||
|
||||
|
||||
def _raise_auth_mismatch(
|
||||
expected_classes: type[ClientAuthScheme] | tuple[type[ClientAuthScheme], ...],
|
||||
provided_auth: ClientAuthScheme,
|
||||
expected_classes: type[AuthScheme] | tuple[type[AuthScheme], ...],
|
||||
provided_auth: AuthScheme,
|
||||
) -> None:
|
||||
"""Raise authentication mismatch error.
|
||||
|
||||
@@ -147,7 +111,7 @@ def parse_www_authenticate(header_value: str) -> dict[str, dict[str, str]]:
|
||||
|
||||
|
||||
def validate_auth_against_agent_card(
|
||||
agent_card: AgentCard, auth: ClientAuthScheme | None
|
||||
agent_card: AgentCard, auth: AuthScheme | None
|
||||
) -> None:
|
||||
"""Validate that provided auth matches AgentCard security requirements.
|
||||
|
||||
@@ -181,8 +145,7 @@ def validate_auth_against_agent_card(
|
||||
return
|
||||
|
||||
if isinstance(scheme, HTTPAuthSecurityScheme):
|
||||
scheme_key = cast(_HTTPSchemeType, scheme.scheme.lower())
|
||||
if required_class := _HTTP_SCHEME_MAPPING.get(scheme_key):
|
||||
if required_class := _HTTP_SCHEME_MAPPING.get(scheme.scheme.lower()):
|
||||
if not isinstance(auth, required_class):
|
||||
_raise_auth_mismatch(required_class, auth)
|
||||
return
|
||||
@@ -193,7 +156,7 @@ def validate_auth_against_agent_card(
|
||||
|
||||
async def retry_on_401(
|
||||
request_func: Callable[[], Awaitable[Response]],
|
||||
auth_scheme: ClientAuthScheme | None,
|
||||
auth_scheme: AuthScheme | None,
|
||||
client: AsyncClient,
|
||||
headers: MutableMapping[str, str],
|
||||
max_retries: int = 3,
|
||||
|
||||
@@ -5,25 +5,14 @@ This module is separate from experimental.a2a to avoid circular imports.
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from pathlib import Path
|
||||
from typing import Any, ClassVar, Literal, cast
|
||||
import warnings
|
||||
from importlib.metadata import version
|
||||
from typing import Any, ClassVar, Literal
|
||||
|
||||
from pydantic import (
|
||||
BaseModel,
|
||||
ConfigDict,
|
||||
Field,
|
||||
FilePath,
|
||||
PrivateAttr,
|
||||
SecretStr,
|
||||
model_validator,
|
||||
)
|
||||
from typing_extensions import Self, deprecated
|
||||
from pydantic import BaseModel, ConfigDict, Field
|
||||
from typing_extensions import deprecated
|
||||
|
||||
from crewai.a2a.auth.client_schemes import ClientAuthScheme
|
||||
from crewai.a2a.auth.server_schemes import ServerAuthScheme
|
||||
from crewai.a2a.extensions.base import ValidatedA2AExtension
|
||||
from crewai.a2a.types import ProtocolVersion, TransportType, Url
|
||||
from crewai.a2a.auth.schemas import AuthScheme
|
||||
from crewai.a2a.types import TransportType, Url
|
||||
|
||||
|
||||
try:
|
||||
@@ -36,17 +25,16 @@ try:
|
||||
SecurityScheme,
|
||||
)
|
||||
|
||||
from crewai.a2a.extensions.server import ServerExtension
|
||||
from crewai.a2a.updates import UpdateConfig
|
||||
except ImportError:
|
||||
UpdateConfig: Any = Any # type: ignore[no-redef]
|
||||
AgentCapabilities: Any = Any # type: ignore[no-redef]
|
||||
AgentCardSignature: Any = Any # type: ignore[no-redef]
|
||||
AgentInterface: Any = Any # type: ignore[no-redef]
|
||||
AgentProvider: Any = Any # type: ignore[no-redef]
|
||||
SecurityScheme: Any = Any # type: ignore[no-redef]
|
||||
AgentSkill: Any = Any # type: ignore[no-redef]
|
||||
ServerExtension: Any = Any # type: ignore[no-redef]
|
||||
UpdateConfig = Any
|
||||
AgentCapabilities = Any
|
||||
AgentCardSignature = Any
|
||||
AgentInterface = Any
|
||||
AgentProvider = Any
|
||||
SecurityScheme = Any
|
||||
AgentSkill = Any
|
||||
UpdateConfig = Any # type: ignore[misc,assignment]
|
||||
|
||||
|
||||
def _get_default_update_config() -> UpdateConfig:
|
||||
@@ -55,309 +43,6 @@ def _get_default_update_config() -> UpdateConfig:
|
||||
return StreamingConfig()
|
||||
|
||||
|
||||
SigningAlgorithm = Literal[
|
||||
"RS256",
|
||||
"RS384",
|
||||
"RS512",
|
||||
"ES256",
|
||||
"ES384",
|
||||
"ES512",
|
||||
"PS256",
|
||||
"PS384",
|
||||
"PS512",
|
||||
]
|
||||
|
||||
|
||||
class AgentCardSigningConfig(BaseModel):
|
||||
"""Configuration for AgentCard JWS signing.
|
||||
|
||||
Provides the private key and algorithm settings for signing AgentCards.
|
||||
Either private_key_path or private_key_pem must be provided, but not both.
|
||||
|
||||
Attributes:
|
||||
private_key_path: Path to a PEM-encoded private key file.
|
||||
private_key_pem: PEM-encoded private key as a secret string.
|
||||
key_id: Optional key identifier for the JWS header (kid claim).
|
||||
algorithm: Signing algorithm (RS256, ES256, PS256, etc.).
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
|
||||
private_key_path: FilePath | None = Field(
|
||||
default=None,
|
||||
description="Path to PEM-encoded private key file",
|
||||
)
|
||||
private_key_pem: SecretStr | None = Field(
|
||||
default=None,
|
||||
description="PEM-encoded private key",
|
||||
)
|
||||
key_id: str | None = Field(
|
||||
default=None,
|
||||
description="Key identifier for JWS header (kid claim)",
|
||||
)
|
||||
algorithm: SigningAlgorithm = Field(
|
||||
default="RS256",
|
||||
description="Signing algorithm (RS256, ES256, PS256, etc.)",
|
||||
)
|
||||
|
||||
@model_validator(mode="after")
|
||||
def _validate_key_source(self) -> Self:
|
||||
"""Ensure exactly one key source is provided."""
|
||||
has_path = self.private_key_path is not None
|
||||
has_pem = self.private_key_pem is not None
|
||||
|
||||
if not has_path and not has_pem:
|
||||
raise ValueError(
|
||||
"Either private_key_path or private_key_pem must be provided"
|
||||
)
|
||||
if has_path and has_pem:
|
||||
raise ValueError(
|
||||
"Only one of private_key_path or private_key_pem should be provided"
|
||||
)
|
||||
return self
|
||||
|
||||
def get_private_key(self) -> str:
|
||||
"""Get the private key content.
|
||||
|
||||
Returns:
|
||||
The PEM-encoded private key as a string.
|
||||
"""
|
||||
if self.private_key_pem:
|
||||
return self.private_key_pem.get_secret_value()
|
||||
if self.private_key_path:
|
||||
return Path(self.private_key_path).read_text()
|
||||
raise ValueError("No private key configured")
|
||||
|
||||
|
||||
class GRPCServerConfig(BaseModel):
|
||||
"""gRPC server transport configuration.
|
||||
|
||||
Presence of this config in ServerTransportConfig.grpc enables gRPC transport.
|
||||
|
||||
Attributes:
|
||||
host: Hostname to advertise in agent cards (default: localhost).
|
||||
Use docker service name (e.g., 'web') for docker-compose setups.
|
||||
port: Port for the gRPC server.
|
||||
tls_cert_path: Path to TLS certificate file for gRPC.
|
||||
tls_key_path: Path to TLS private key file for gRPC.
|
||||
max_workers: Maximum number of workers for the gRPC thread pool.
|
||||
reflection_enabled: Whether to enable gRPC reflection for debugging.
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
|
||||
host: str = Field(
|
||||
default="localhost",
|
||||
description="Hostname to advertise in agent cards for gRPC connections",
|
||||
)
|
||||
port: int = Field(
|
||||
default=50051,
|
||||
description="Port for the gRPC server",
|
||||
)
|
||||
tls_cert_path: str | None = Field(
|
||||
default=None,
|
||||
description="Path to TLS certificate file for gRPC",
|
||||
)
|
||||
tls_key_path: str | None = Field(
|
||||
default=None,
|
||||
description="Path to TLS private key file for gRPC",
|
||||
)
|
||||
max_workers: int = Field(
|
||||
default=10,
|
||||
description="Maximum number of workers for the gRPC thread pool",
|
||||
)
|
||||
reflection_enabled: bool = Field(
|
||||
default=False,
|
||||
description="Whether to enable gRPC reflection for debugging",
|
||||
)
|
||||
|
||||
|
||||
class GRPCClientConfig(BaseModel):
|
||||
"""gRPC client transport configuration.
|
||||
|
||||
Attributes:
|
||||
max_send_message_length: Maximum size for outgoing messages in bytes.
|
||||
max_receive_message_length: Maximum size for incoming messages in bytes.
|
||||
keepalive_time_ms: Time between keepalive pings in milliseconds.
|
||||
keepalive_timeout_ms: Timeout for keepalive ping response in milliseconds.
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
|
||||
max_send_message_length: int | None = Field(
|
||||
default=None,
|
||||
description="Maximum size for outgoing messages in bytes",
|
||||
)
|
||||
max_receive_message_length: int | None = Field(
|
||||
default=None,
|
||||
description="Maximum size for incoming messages in bytes",
|
||||
)
|
||||
keepalive_time_ms: int | None = Field(
|
||||
default=None,
|
||||
description="Time between keepalive pings in milliseconds",
|
||||
)
|
||||
keepalive_timeout_ms: int | None = Field(
|
||||
default=None,
|
||||
description="Timeout for keepalive ping response in milliseconds",
|
||||
)
|
||||
|
||||
|
||||
class JSONRPCServerConfig(BaseModel):
|
||||
"""JSON-RPC server transport configuration.
|
||||
|
||||
Presence of this config in ServerTransportConfig.jsonrpc enables JSON-RPC transport.
|
||||
|
||||
Attributes:
|
||||
rpc_path: URL path for the JSON-RPC endpoint.
|
||||
agent_card_path: URL path for the agent card endpoint.
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
|
||||
rpc_path: str = Field(
|
||||
default="/a2a",
|
||||
description="URL path for the JSON-RPC endpoint",
|
||||
)
|
||||
agent_card_path: str = Field(
|
||||
default="/.well-known/agent-card.json",
|
||||
description="URL path for the agent card endpoint",
|
||||
)
|
||||
|
||||
|
||||
class JSONRPCClientConfig(BaseModel):
|
||||
"""JSON-RPC client transport configuration.
|
||||
|
||||
Attributes:
|
||||
max_request_size: Maximum request body size in bytes.
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
|
||||
max_request_size: int | None = Field(
|
||||
default=None,
|
||||
description="Maximum request body size in bytes",
|
||||
)
|
||||
|
||||
|
||||
class HTTPJSONConfig(BaseModel):
|
||||
"""HTTP+JSON transport configuration.
|
||||
|
||||
Presence of this config in ServerTransportConfig.http_json enables HTTP+JSON transport.
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
|
||||
|
||||
class ServerPushNotificationConfig(BaseModel):
|
||||
"""Configuration for outgoing webhook push notifications.
|
||||
|
||||
Controls how the server signs and delivers push notifications to clients.
|
||||
|
||||
Attributes:
|
||||
signature_secret: Shared secret for HMAC-SHA256 signing of outgoing webhooks.
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
|
||||
signature_secret: SecretStr | None = Field(
|
||||
default=None,
|
||||
description="Shared secret for HMAC-SHA256 signing of outgoing push notifications",
|
||||
)
|
||||
|
||||
|
||||
class ServerTransportConfig(BaseModel):
|
||||
"""Transport configuration for A2A server.
|
||||
|
||||
Groups all transport-related settings including preferred transport
|
||||
and protocol-specific configurations.
|
||||
|
||||
Attributes:
|
||||
preferred: Transport protocol for the preferred endpoint.
|
||||
jsonrpc: JSON-RPC server transport configuration.
|
||||
grpc: gRPC server transport configuration.
|
||||
http_json: HTTP+JSON transport configuration.
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
|
||||
preferred: TransportType = Field(
|
||||
default="JSONRPC",
|
||||
description="Transport protocol for the preferred endpoint",
|
||||
)
|
||||
jsonrpc: JSONRPCServerConfig = Field(
|
||||
default_factory=JSONRPCServerConfig,
|
||||
description="JSON-RPC server transport configuration",
|
||||
)
|
||||
grpc: GRPCServerConfig | None = Field(
|
||||
default=None,
|
||||
description="gRPC server transport configuration",
|
||||
)
|
||||
http_json: HTTPJSONConfig | None = Field(
|
||||
default=None,
|
||||
description="HTTP+JSON transport configuration",
|
||||
)
|
||||
|
||||
|
||||
def _migrate_client_transport_fields(
|
||||
transport: ClientTransportConfig,
|
||||
transport_protocol: TransportType | None,
|
||||
supported_transports: list[TransportType] | None,
|
||||
) -> None:
|
||||
"""Migrate deprecated transport fields to new config."""
|
||||
if transport_protocol is not None:
|
||||
warnings.warn(
|
||||
"transport_protocol is deprecated, use transport=ClientTransportConfig(preferred=...) instead",
|
||||
FutureWarning,
|
||||
stacklevel=5,
|
||||
)
|
||||
object.__setattr__(transport, "preferred", transport_protocol)
|
||||
if supported_transports is not None:
|
||||
warnings.warn(
|
||||
"supported_transports is deprecated, use transport=ClientTransportConfig(supported=...) instead",
|
||||
FutureWarning,
|
||||
stacklevel=5,
|
||||
)
|
||||
object.__setattr__(transport, "supported", supported_transports)
|
||||
|
||||
|
||||
class ClientTransportConfig(BaseModel):
|
||||
"""Transport configuration for A2A client.
|
||||
|
||||
Groups all client transport-related settings including preferred transport,
|
||||
supported transports for negotiation, and protocol-specific configurations.
|
||||
|
||||
Transport negotiation logic:
|
||||
1. If `preferred` is set and server supports it → use client's preferred
|
||||
2. Otherwise, if server's preferred is in client's `supported` → use server's preferred
|
||||
3. Otherwise, find first match from client's `supported` in server's interfaces
|
||||
|
||||
Attributes:
|
||||
preferred: Client's preferred transport. If set, client preference takes priority.
|
||||
supported: Transports the client can use, in order of preference.
|
||||
jsonrpc: JSON-RPC client transport configuration.
|
||||
grpc: gRPC client transport configuration.
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
|
||||
preferred: TransportType | None = Field(
|
||||
default=None,
|
||||
description="Client's preferred transport. If set, takes priority over server preference.",
|
||||
)
|
||||
supported: list[TransportType] = Field(
|
||||
default_factory=lambda: cast(list[TransportType], ["JSONRPC"]),
|
||||
description="Transports the client can use, in order of preference",
|
||||
)
|
||||
jsonrpc: JSONRPCClientConfig = Field(
|
||||
default_factory=JSONRPCClientConfig,
|
||||
description="JSON-RPC client transport configuration",
|
||||
)
|
||||
grpc: GRPCClientConfig = Field(
|
||||
default_factory=GRPCClientConfig,
|
||||
description="gRPC client transport configuration",
|
||||
)
|
||||
|
||||
|
||||
@deprecated(
|
||||
"""
|
||||
`crewai.a2a.config.A2AConfig` is deprecated and will be removed in v2.0.0,
|
||||
@@ -380,14 +65,13 @@ class A2AConfig(BaseModel):
|
||||
fail_fast: If True, raise error when agent unreachable; if False, skip and continue.
|
||||
trust_remote_completion_status: If True, return A2A agent's result directly when completed.
|
||||
updates: Update mechanism config.
|
||||
client_extensions: Client-side processing hooks for tool injection and prompt augmentation.
|
||||
transport: Transport configuration (preferred, supported transports, gRPC settings).
|
||||
transport_protocol: A2A transport protocol (grpc, jsonrpc, http+json).
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
|
||||
endpoint: Url = Field(description="A2A agent endpoint URL")
|
||||
auth: ClientAuthScheme | None = Field(
|
||||
auth: AuthScheme | None = Field(
|
||||
default=None,
|
||||
description="Authentication scheme",
|
||||
)
|
||||
@@ -411,48 +95,10 @@ class A2AConfig(BaseModel):
|
||||
default_factory=_get_default_update_config,
|
||||
description="Update mechanism config",
|
||||
)
|
||||
client_extensions: list[ValidatedA2AExtension] = Field(
|
||||
default_factory=list,
|
||||
description="Client-side processing hooks for tool injection and prompt augmentation",
|
||||
transport_protocol: Literal["JSONRPC", "GRPC", "HTTP+JSON"] = Field(
|
||||
default="JSONRPC",
|
||||
description="Specified mode of A2A transport protocol",
|
||||
)
|
||||
transport: ClientTransportConfig = Field(
|
||||
default_factory=ClientTransportConfig,
|
||||
description="Transport configuration (preferred, supported transports, gRPC settings)",
|
||||
)
|
||||
transport_protocol: TransportType | None = Field(
|
||||
default=None,
|
||||
description="Deprecated: Use transport.preferred instead",
|
||||
exclude=True,
|
||||
)
|
||||
supported_transports: list[TransportType] | None = Field(
|
||||
default=None,
|
||||
description="Deprecated: Use transport.supported instead",
|
||||
exclude=True,
|
||||
)
|
||||
use_client_preference: bool | None = Field(
|
||||
default=None,
|
||||
description="Deprecated: Set transport.preferred to enable client preference",
|
||||
exclude=True,
|
||||
)
|
||||
_parallel_delegation: bool = PrivateAttr(default=False)
|
||||
|
||||
@model_validator(mode="after")
|
||||
def _migrate_deprecated_transport_fields(self) -> Self:
|
||||
"""Migrate deprecated transport fields to new config."""
|
||||
_migrate_client_transport_fields(
|
||||
self.transport, self.transport_protocol, self.supported_transports
|
||||
)
|
||||
if self.use_client_preference is not None:
|
||||
warnings.warn(
|
||||
"use_client_preference is deprecated, set transport.preferred to enable client preference",
|
||||
FutureWarning,
|
||||
stacklevel=4,
|
||||
)
|
||||
if self.use_client_preference and self.transport.supported:
|
||||
object.__setattr__(
|
||||
self.transport, "preferred", self.transport.supported[0]
|
||||
)
|
||||
return self
|
||||
|
||||
|
||||
class A2AClientConfig(BaseModel):
|
||||
@@ -468,15 +114,15 @@ class A2AClientConfig(BaseModel):
|
||||
trust_remote_completion_status: If True, return A2A agent's result directly when completed.
|
||||
updates: Update mechanism config.
|
||||
accepted_output_modes: Media types the client can accept in responses.
|
||||
extensions: Extension URIs the client supports (A2A protocol extensions).
|
||||
client_extensions: Client-side processing hooks for tool injection and prompt augmentation.
|
||||
transport: Transport configuration (preferred, supported transports, gRPC settings).
|
||||
supported_transports: Ordered list of transport protocols the client supports.
|
||||
use_client_preference: Whether to prioritize client transport preferences over server.
|
||||
extensions: Extension URIs the client supports.
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
|
||||
endpoint: Url = Field(description="A2A agent endpoint URL")
|
||||
auth: ClientAuthScheme | None = Field(
|
||||
auth: AuthScheme | None = Field(
|
||||
default=None,
|
||||
description="Authentication scheme",
|
||||
)
|
||||
@@ -504,37 +150,22 @@ class A2AClientConfig(BaseModel):
|
||||
default_factory=lambda: ["application/json"],
|
||||
description="Media types the client can accept in responses",
|
||||
)
|
||||
supported_transports: list[str] = Field(
|
||||
default_factory=lambda: ["JSONRPC"],
|
||||
description="Ordered list of transport protocols the client supports",
|
||||
)
|
||||
use_client_preference: bool = Field(
|
||||
default=False,
|
||||
description="Whether to prioritize client transport preferences over server",
|
||||
)
|
||||
extensions: list[str] = Field(
|
||||
default_factory=list,
|
||||
description="Extension URIs the client supports",
|
||||
)
|
||||
client_extensions: list[ValidatedA2AExtension] = Field(
|
||||
default_factory=list,
|
||||
description="Client-side processing hooks for tool injection and prompt augmentation",
|
||||
transport_protocol: Literal["JSONRPC", "GRPC", "HTTP+JSON"] = Field(
|
||||
default="JSONRPC",
|
||||
description="Specified mode of A2A transport protocol",
|
||||
)
|
||||
transport: ClientTransportConfig = Field(
|
||||
default_factory=ClientTransportConfig,
|
||||
description="Transport configuration (preferred, supported transports, gRPC settings)",
|
||||
)
|
||||
transport_protocol: TransportType | None = Field(
|
||||
default=None,
|
||||
description="Deprecated: Use transport.preferred instead",
|
||||
exclude=True,
|
||||
)
|
||||
supported_transports: list[TransportType] | None = Field(
|
||||
default=None,
|
||||
description="Deprecated: Use transport.supported instead",
|
||||
exclude=True,
|
||||
)
|
||||
_parallel_delegation: bool = PrivateAttr(default=False)
|
||||
|
||||
@model_validator(mode="after")
|
||||
def _migrate_deprecated_transport_fields(self) -> Self:
|
||||
"""Migrate deprecated transport fields to new config."""
|
||||
_migrate_client_transport_fields(
|
||||
self.transport, self.transport_protocol, self.supported_transports
|
||||
)
|
||||
return self
|
||||
|
||||
|
||||
class A2AServerConfig(BaseModel):
|
||||
@@ -551,6 +182,7 @@ class A2AServerConfig(BaseModel):
|
||||
default_input_modes: Default supported input MIME types.
|
||||
default_output_modes: Default supported output MIME types.
|
||||
capabilities: Declaration of optional capabilities.
|
||||
preferred_transport: Transport protocol for the preferred endpoint.
|
||||
protocol_version: A2A protocol version this agent supports.
|
||||
provider: Information about the agent's service provider.
|
||||
documentation_url: URL to the agent's documentation.
|
||||
@@ -560,12 +192,7 @@ class A2AServerConfig(BaseModel):
|
||||
security_schemes: Security schemes available to authorize requests.
|
||||
supports_authenticated_extended_card: Whether agent provides extended card to authenticated users.
|
||||
url: Preferred endpoint URL for the agent.
|
||||
signing_config: Configuration for signing the AgentCard with JWS.
|
||||
signatures: Deprecated. Pre-computed JWS signatures. Use signing_config instead.
|
||||
server_extensions: Server-side A2A protocol extensions with on_request/on_response hooks.
|
||||
push_notifications: Configuration for outgoing push notifications.
|
||||
transport: Transport configuration (preferred transport, gRPC, REST settings).
|
||||
auth: Authentication scheme for A2A endpoints.
|
||||
signatures: JSON Web Signatures for the AgentCard.
|
||||
"""
|
||||
|
||||
model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")
|
||||
@@ -601,8 +228,12 @@ class A2AServerConfig(BaseModel):
|
||||
),
|
||||
description="Declaration of optional capabilities supported by the agent",
|
||||
)
|
||||
protocol_version: ProtocolVersion = Field(
|
||||
default="0.3.0",
|
||||
preferred_transport: TransportType = Field(
|
||||
default="JSONRPC",
|
||||
description="Transport protocol for the preferred endpoint",
|
||||
)
|
||||
protocol_version: str = Field(
|
||||
default_factory=lambda: version("a2a-sdk"),
|
||||
description="A2A protocol version this agent supports",
|
||||
)
|
||||
provider: AgentProvider | None = Field(
|
||||
@@ -619,7 +250,7 @@ class A2AServerConfig(BaseModel):
|
||||
)
|
||||
additional_interfaces: list[AgentInterface] = Field(
|
||||
default_factory=list,
|
||||
description="Additional supported interfaces.",
|
||||
description="Additional supported interfaces (transport and URL combinations)",
|
||||
)
|
||||
security: list[dict[str, list[str]]] = Field(
|
||||
default_factory=list,
|
||||
@@ -637,54 +268,7 @@ class A2AServerConfig(BaseModel):
|
||||
default=None,
|
||||
description="Preferred endpoint URL for the agent. Set at runtime if not provided.",
|
||||
)
|
||||
signing_config: AgentCardSigningConfig | None = Field(
|
||||
default=None,
|
||||
description="Configuration for signing the AgentCard with JWS",
|
||||
)
|
||||
signatures: list[AgentCardSignature] | None = Field(
|
||||
default=None,
|
||||
description="Deprecated: Use signing_config instead. Pre-computed JWS signatures for the AgentCard.",
|
||||
exclude=True,
|
||||
deprecated=True,
|
||||
)
|
||||
server_extensions: list[ServerExtension] = Field(
|
||||
signatures: list[AgentCardSignature] = Field(
|
||||
default_factory=list,
|
||||
description="Server-side A2A protocol extensions that modify agent behavior",
|
||||
description="JSON Web Signatures for the AgentCard",
|
||||
)
|
||||
push_notifications: ServerPushNotificationConfig | None = Field(
|
||||
default=None,
|
||||
description="Configuration for outgoing push notifications",
|
||||
)
|
||||
transport: ServerTransportConfig = Field(
|
||||
default_factory=ServerTransportConfig,
|
||||
description="Transport configuration (preferred transport, gRPC, REST settings)",
|
||||
)
|
||||
preferred_transport: TransportType | None = Field(
|
||||
default=None,
|
||||
description="Deprecated: Use transport.preferred instead",
|
||||
exclude=True,
|
||||
deprecated=True,
|
||||
)
|
||||
auth: ServerAuthScheme | None = Field(
|
||||
default=None,
|
||||
description="Authentication scheme for A2A endpoints. Defaults to SimpleTokenAuth using AUTH_TOKEN env var.",
|
||||
)
|
||||
|
||||
@model_validator(mode="after")
|
||||
def _migrate_deprecated_fields(self) -> Self:
|
||||
"""Migrate deprecated fields to new config."""
|
||||
if self.preferred_transport is not None:
|
||||
warnings.warn(
|
||||
"preferred_transport is deprecated, use transport=ServerTransportConfig(preferred=...) instead",
|
||||
FutureWarning,
|
||||
stacklevel=4,
|
||||
)
|
||||
object.__setattr__(self.transport, "preferred", self.preferred_transport)
|
||||
if self.signatures is not None:
|
||||
warnings.warn(
|
||||
"signatures is deprecated, use signing_config=AgentCardSigningConfig(...) instead. "
|
||||
"The signatures field will be removed in v2.0.0.",
|
||||
FutureWarning,
|
||||
stacklevel=4,
|
||||
)
|
||||
return self
|
||||
|
||||
@@ -1,491 +1,7 @@
|
||||
"""A2A error codes and error response utilities.
|
||||
|
||||
This module provides a centralized mapping of all A2A protocol error codes
|
||||
as defined in the A2A specification, plus custom CrewAI extensions.
|
||||
|
||||
Error codes follow JSON-RPC 2.0 conventions:
|
||||
- -32700 to -32600: Standard JSON-RPC errors
|
||||
- -32099 to -32000: Server errors (A2A-specific)
|
||||
- -32768 to -32100: Reserved for implementation-defined errors
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from dataclasses import dataclass, field
|
||||
from enum import IntEnum
|
||||
from typing import Any
|
||||
"""A2A protocol error types."""
|
||||
|
||||
from a2a.client.errors import A2AClientTimeoutError
|
||||
|
||||
|
||||
class A2APollingTimeoutError(A2AClientTimeoutError):
|
||||
"""Raised when polling exceeds the configured timeout."""
|
||||
|
||||
|
||||
class A2AErrorCode(IntEnum):
|
||||
"""A2A protocol error codes.
|
||||
|
||||
Codes follow JSON-RPC 2.0 specification with A2A-specific extensions.
|
||||
"""
|
||||
|
||||
# JSON-RPC 2.0 Standard Errors (-32700 to -32600)
|
||||
JSON_PARSE_ERROR = -32700
|
||||
"""Invalid JSON was received by the server."""
|
||||
|
||||
INVALID_REQUEST = -32600
|
||||
"""The JSON sent is not a valid Request object."""
|
||||
|
||||
METHOD_NOT_FOUND = -32601
|
||||
"""The method does not exist / is not available."""
|
||||
|
||||
INVALID_PARAMS = -32602
|
||||
"""Invalid method parameter(s)."""
|
||||
|
||||
INTERNAL_ERROR = -32603
|
||||
"""Internal JSON-RPC error."""
|
||||
|
||||
# A2A-Specific Errors (-32099 to -32000)
|
||||
TASK_NOT_FOUND = -32001
|
||||
"""The specified task was not found."""
|
||||
|
||||
TASK_NOT_CANCELABLE = -32002
|
||||
"""The task cannot be canceled (already completed/failed)."""
|
||||
|
||||
PUSH_NOTIFICATION_NOT_SUPPORTED = -32003
|
||||
"""Push notifications are not supported by this agent."""
|
||||
|
||||
UNSUPPORTED_OPERATION = -32004
|
||||
"""The requested operation is not supported."""
|
||||
|
||||
CONTENT_TYPE_NOT_SUPPORTED = -32005
|
||||
"""Incompatible content types between client and server."""
|
||||
|
||||
INVALID_AGENT_RESPONSE = -32006
|
||||
"""The agent produced an invalid response."""
|
||||
|
||||
# CrewAI Custom Extensions (-32768 to -32100)
|
||||
UNSUPPORTED_VERSION = -32009
|
||||
"""The requested A2A protocol version is not supported."""
|
||||
|
||||
UNSUPPORTED_EXTENSION = -32010
|
||||
"""Client does not support required protocol extensions."""
|
||||
|
||||
AUTHENTICATION_REQUIRED = -32011
|
||||
"""Authentication is required for this operation."""
|
||||
|
||||
AUTHORIZATION_FAILED = -32012
|
||||
"""Authorization check failed (insufficient permissions)."""
|
||||
|
||||
RATE_LIMIT_EXCEEDED = -32013
|
||||
"""Rate limit exceeded for this client/operation."""
|
||||
|
||||
TASK_TIMEOUT = -32014
|
||||
"""Task execution timed out."""
|
||||
|
||||
TRANSPORT_NEGOTIATION_FAILED = -32015
|
||||
"""Failed to negotiate a compatible transport protocol."""
|
||||
|
||||
CONTEXT_NOT_FOUND = -32016
|
||||
"""The specified context was not found."""
|
||||
|
||||
SKILL_NOT_FOUND = -32017
|
||||
"""The specified skill was not found."""
|
||||
|
||||
ARTIFACT_NOT_FOUND = -32018
|
||||
"""The specified artifact was not found."""
|
||||
|
||||
|
||||
# Error code to default message mapping
|
||||
ERROR_MESSAGES: dict[int, str] = {
|
||||
A2AErrorCode.JSON_PARSE_ERROR: "Parse error",
|
||||
A2AErrorCode.INVALID_REQUEST: "Invalid Request",
|
||||
A2AErrorCode.METHOD_NOT_FOUND: "Method not found",
|
||||
A2AErrorCode.INVALID_PARAMS: "Invalid params",
|
||||
A2AErrorCode.INTERNAL_ERROR: "Internal error",
|
||||
A2AErrorCode.TASK_NOT_FOUND: "Task not found",
|
||||
A2AErrorCode.TASK_NOT_CANCELABLE: "Task not cancelable",
|
||||
A2AErrorCode.PUSH_NOTIFICATION_NOT_SUPPORTED: "Push Notification is not supported",
|
||||
A2AErrorCode.UNSUPPORTED_OPERATION: "This operation is not supported",
|
||||
A2AErrorCode.CONTENT_TYPE_NOT_SUPPORTED: "Incompatible content types",
|
||||
A2AErrorCode.INVALID_AGENT_RESPONSE: "Invalid agent response",
|
||||
A2AErrorCode.UNSUPPORTED_VERSION: "Unsupported A2A version",
|
||||
A2AErrorCode.UNSUPPORTED_EXTENSION: "Client does not support required extensions",
|
||||
A2AErrorCode.AUTHENTICATION_REQUIRED: "Authentication required",
|
||||
A2AErrorCode.AUTHORIZATION_FAILED: "Authorization failed",
|
||||
A2AErrorCode.RATE_LIMIT_EXCEEDED: "Rate limit exceeded",
|
||||
A2AErrorCode.TASK_TIMEOUT: "Task execution timed out",
|
||||
A2AErrorCode.TRANSPORT_NEGOTIATION_FAILED: "Transport negotiation failed",
|
||||
A2AErrorCode.CONTEXT_NOT_FOUND: "Context not found",
|
||||
A2AErrorCode.SKILL_NOT_FOUND: "Skill not found",
|
||||
A2AErrorCode.ARTIFACT_NOT_FOUND: "Artifact not found",
|
||||
}
|
||||
|
||||
|
||||
@dataclass
|
||||
class A2AError(Exception):
|
||||
"""Base exception for A2A protocol errors.
|
||||
|
||||
Attributes:
|
||||
code: The A2A/JSON-RPC error code.
|
||||
message: Human-readable error message.
|
||||
data: Optional additional error data.
|
||||
"""
|
||||
|
||||
code: int
|
||||
message: str | None = None
|
||||
data: Any = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None:
|
||||
self.message = ERROR_MESSAGES.get(self.code, "Unknown error")
|
||||
super().__init__(self.message)
|
||||
|
||||
def to_dict(self) -> dict[str, Any]:
|
||||
"""Convert to JSON-RPC error object format."""
|
||||
error: dict[str, Any] = {
|
||||
"code": self.code,
|
||||
"message": self.message,
|
||||
}
|
||||
if self.data is not None:
|
||||
error["data"] = self.data
|
||||
return error
|
||||
|
||||
def to_response(self, request_id: str | int | None = None) -> dict[str, Any]:
|
||||
"""Convert to full JSON-RPC error response."""
|
||||
return {
|
||||
"jsonrpc": "2.0",
|
||||
"error": self.to_dict(),
|
||||
"id": request_id,
|
||||
}
|
||||
|
||||
|
||||
@dataclass
|
||||
class JSONParseError(A2AError):
|
||||
"""Invalid JSON was received."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.JSON_PARSE_ERROR, init=False)
|
||||
|
||||
|
||||
@dataclass
|
||||
class InvalidRequestError(A2AError):
|
||||
"""The JSON sent is not a valid Request object."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.INVALID_REQUEST, init=False)
|
||||
|
||||
|
||||
@dataclass
|
||||
class MethodNotFoundError(A2AError):
|
||||
"""The method does not exist / is not available."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.METHOD_NOT_FOUND, init=False)
|
||||
method: str | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None and self.method:
|
||||
self.message = f"Method not found: {self.method}"
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class InvalidParamsError(A2AError):
|
||||
"""Invalid method parameter(s)."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.INVALID_PARAMS, init=False)
|
||||
param: str | None = None
|
||||
reason: str | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None:
|
||||
if self.param and self.reason:
|
||||
self.message = f"Invalid parameter '{self.param}': {self.reason}"
|
||||
elif self.param:
|
||||
self.message = f"Invalid parameter: {self.param}"
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class InternalError(A2AError):
|
||||
"""Internal JSON-RPC error."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.INTERNAL_ERROR, init=False)
|
||||
|
||||
|
||||
@dataclass
|
||||
class TaskNotFoundError(A2AError):
|
||||
"""The specified task was not found."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.TASK_NOT_FOUND, init=False)
|
||||
task_id: str | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None and self.task_id:
|
||||
self.message = f"Task not found: {self.task_id}"
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class TaskNotCancelableError(A2AError):
|
||||
"""The task cannot be canceled."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.TASK_NOT_CANCELABLE, init=False)
|
||||
task_id: str | None = None
|
||||
reason: str | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None:
|
||||
if self.task_id and self.reason:
|
||||
self.message = f"Task {self.task_id} cannot be canceled: {self.reason}"
|
||||
elif self.task_id:
|
||||
self.message = f"Task {self.task_id} cannot be canceled"
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class PushNotificationNotSupportedError(A2AError):
|
||||
"""Push notifications are not supported."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.PUSH_NOTIFICATION_NOT_SUPPORTED, init=False)
|
||||
|
||||
|
||||
@dataclass
|
||||
class UnsupportedOperationError(A2AError):
|
||||
"""The requested operation is not supported."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.UNSUPPORTED_OPERATION, init=False)
|
||||
operation: str | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None and self.operation:
|
||||
self.message = f"Operation not supported: {self.operation}"
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class ContentTypeNotSupportedError(A2AError):
|
||||
"""Incompatible content types."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.CONTENT_TYPE_NOT_SUPPORTED, init=False)
|
||||
requested_types: list[str] | None = None
|
||||
supported_types: list[str] | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None and self.requested_types and self.supported_types:
|
||||
self.message = (
|
||||
f"Content type not supported. Requested: {self.requested_types}, "
|
||||
f"Supported: {self.supported_types}"
|
||||
)
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class InvalidAgentResponseError(A2AError):
|
||||
"""The agent produced an invalid response."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.INVALID_AGENT_RESPONSE, init=False)
|
||||
|
||||
|
||||
@dataclass
|
||||
class UnsupportedVersionError(A2AError):
|
||||
"""The requested A2A version is not supported."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.UNSUPPORTED_VERSION, init=False)
|
||||
requested_version: str | None = None
|
||||
supported_versions: list[str] | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None and self.requested_version:
|
||||
msg = f"Unsupported A2A version: {self.requested_version}"
|
||||
if self.supported_versions:
|
||||
msg += f". Supported versions: {', '.join(self.supported_versions)}"
|
||||
self.message = msg
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class UnsupportedExtensionError(A2AError):
|
||||
"""Client does not support required extensions."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.UNSUPPORTED_EXTENSION, init=False)
|
||||
required_extensions: list[str] | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None and self.required_extensions:
|
||||
self.message = f"Client does not support required extensions: {', '.join(self.required_extensions)}"
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class AuthenticationRequiredError(A2AError):
|
||||
"""Authentication is required."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.AUTHENTICATION_REQUIRED, init=False)
|
||||
|
||||
|
||||
@dataclass
|
||||
class AuthorizationFailedError(A2AError):
|
||||
"""Authorization check failed."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.AUTHORIZATION_FAILED, init=False)
|
||||
required_scope: str | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None and self.required_scope:
|
||||
self.message = (
|
||||
f"Authorization failed. Required scope: {self.required_scope}"
|
||||
)
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class RateLimitExceededError(A2AError):
|
||||
"""Rate limit exceeded."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.RATE_LIMIT_EXCEEDED, init=False)
|
||||
retry_after: int | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None and self.retry_after:
|
||||
self.message = (
|
||||
f"Rate limit exceeded. Retry after {self.retry_after} seconds"
|
||||
)
|
||||
if self.retry_after:
|
||||
self.data = {"retry_after": self.retry_after}
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class TaskTimeoutError(A2AError):
|
||||
"""Task execution timed out."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.TASK_TIMEOUT, init=False)
|
||||
task_id: str | None = None
|
||||
timeout_seconds: float | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None:
|
||||
if self.task_id and self.timeout_seconds:
|
||||
self.message = (
|
||||
f"Task {self.task_id} timed out after {self.timeout_seconds}s"
|
||||
)
|
||||
elif self.task_id:
|
||||
self.message = f"Task {self.task_id} timed out"
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class TransportNegotiationFailedError(A2AError):
|
||||
"""Failed to negotiate a compatible transport protocol."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.TRANSPORT_NEGOTIATION_FAILED, init=False)
|
||||
client_transports: list[str] | None = None
|
||||
server_transports: list[str] | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None and self.client_transports and self.server_transports:
|
||||
self.message = (
|
||||
f"Transport negotiation failed. Client: {self.client_transports}, "
|
||||
f"Server: {self.server_transports}"
|
||||
)
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class ContextNotFoundError(A2AError):
|
||||
"""The specified context was not found."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.CONTEXT_NOT_FOUND, init=False)
|
||||
context_id: str | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None and self.context_id:
|
||||
self.message = f"Context not found: {self.context_id}"
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class SkillNotFoundError(A2AError):
|
||||
"""The specified skill was not found."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.SKILL_NOT_FOUND, init=False)
|
||||
skill_id: str | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None and self.skill_id:
|
||||
self.message = f"Skill not found: {self.skill_id}"
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
@dataclass
|
||||
class ArtifactNotFoundError(A2AError):
|
||||
"""The specified artifact was not found."""
|
||||
|
||||
code: int = field(default=A2AErrorCode.ARTIFACT_NOT_FOUND, init=False)
|
||||
artifact_id: str | None = None
|
||||
|
||||
def __post_init__(self) -> None:
|
||||
if self.message is None and self.artifact_id:
|
||||
self.message = f"Artifact not found: {self.artifact_id}"
|
||||
super().__post_init__()
|
||||
|
||||
|
||||
def create_error_response(
|
||||
code: int | A2AErrorCode,
|
||||
message: str | None = None,
|
||||
data: Any = None,
|
||||
request_id: str | int | None = None,
|
||||
) -> dict[str, Any]:
|
||||
"""Create a JSON-RPC error response.
|
||||
|
||||
Args:
|
||||
code: Error code (A2AErrorCode or int).
|
||||
message: Optional error message (uses default if not provided).
|
||||
data: Optional additional error data.
|
||||
request_id: Request ID for correlation.
|
||||
|
||||
Returns:
|
||||
Dict in JSON-RPC error response format.
|
||||
"""
|
||||
error = A2AError(code=int(code), message=message, data=data)
|
||||
return error.to_response(request_id)
|
||||
|
||||
|
||||
def is_retryable_error(code: int) -> bool:
|
||||
"""Check if an error is potentially retryable.
|
||||
|
||||
Args:
|
||||
code: Error code to check.
|
||||
|
||||
Returns:
|
||||
True if the error might be resolved by retrying.
|
||||
"""
|
||||
retryable_codes = {
|
||||
A2AErrorCode.INTERNAL_ERROR,
|
||||
A2AErrorCode.RATE_LIMIT_EXCEEDED,
|
||||
A2AErrorCode.TASK_TIMEOUT,
|
||||
}
|
||||
return code in retryable_codes
|
||||
|
||||
|
||||
def is_client_error(code: int) -> bool:
|
||||
"""Check if an error is a client-side error.
|
||||
|
||||
Args:
|
||||
code: Error code to check.
|
||||
|
||||
Returns:
|
||||
True if the error is due to client request issues.
|
||||
"""
|
||||
client_error_codes = {
|
||||
A2AErrorCode.JSON_PARSE_ERROR,
|
||||
A2AErrorCode.INVALID_REQUEST,
|
||||
A2AErrorCode.METHOD_NOT_FOUND,
|
||||
A2AErrorCode.INVALID_PARAMS,
|
||||
A2AErrorCode.TASK_NOT_FOUND,
|
||||
A2AErrorCode.CONTENT_TYPE_NOT_SUPPORTED,
|
||||
A2AErrorCode.UNSUPPORTED_VERSION,
|
||||
A2AErrorCode.UNSUPPORTED_EXTENSION,
|
||||
A2AErrorCode.CONTEXT_NOT_FOUND,
|
||||
A2AErrorCode.SKILL_NOT_FOUND,
|
||||
A2AErrorCode.ARTIFACT_NOT_FOUND,
|
||||
}
|
||||
return code in client_error_codes
|
||||
|
||||
@@ -1,37 +1,4 @@
|
||||
"""A2A Protocol Extensions for CrewAI.
|
||||
|
||||
This module contains extensions to the A2A (Agent-to-Agent) protocol.
|
||||
|
||||
**Client-side extensions** (A2AExtension) allow customizing how the A2A wrapper
|
||||
processes requests and responses during delegation to remote agents. These provide
|
||||
hooks for tool injection, prompt augmentation, and response processing.
|
||||
|
||||
**Server-side extensions** (ServerExtension) allow agents to offer additional
|
||||
functionality beyond the core A2A specification. Clients activate extensions
|
||||
via the X-A2A-Extensions header.
|
||||
|
||||
See: https://a2a-protocol.org/latest/topics/extensions/
|
||||
"""
|
||||
|
||||
from crewai.a2a.extensions.base import (
|
||||
A2AExtension,
|
||||
ConversationState,
|
||||
ExtensionRegistry,
|
||||
ValidatedA2AExtension,
|
||||
)
|
||||
from crewai.a2a.extensions.server import (
|
||||
ExtensionContext,
|
||||
ServerExtension,
|
||||
ServerExtensionRegistry,
|
||||
)
|
||||
|
||||
|
||||
__all__ = [
|
||||
"A2AExtension",
|
||||
"ConversationState",
|
||||
"ExtensionContext",
|
||||
"ExtensionRegistry",
|
||||
"ServerExtension",
|
||||
"ServerExtensionRegistry",
|
||||
"ValidatedA2AExtension",
|
||||
]
|
||||
|
||||
@@ -1,20 +1,14 @@
|
||||
"""Base extension interface for CrewAI A2A wrapper processing hooks.
|
||||
"""Base extension interface for A2A wrapper integrations.
|
||||
|
||||
This module defines the protocol for extending CrewAI's A2A wrapper functionality
|
||||
with custom logic for tool injection, prompt augmentation, and response processing.
|
||||
|
||||
Note: These are CrewAI-specific processing hooks, NOT A2A protocol extensions.
|
||||
A2A protocol extensions are capability declarations using AgentExtension objects
|
||||
in AgentCard.capabilities.extensions, activated via the A2A-Extensions HTTP header.
|
||||
See: https://a2a-protocol.org/latest/topics/extensions/
|
||||
This module defines the protocol for extending A2A wrapper functionality
|
||||
with custom logic for conversation processing, prompt augmentation, and
|
||||
agent response handling.
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from collections.abc import Sequence
|
||||
from typing import TYPE_CHECKING, Annotated, Any, Protocol, runtime_checkable
|
||||
|
||||
from pydantic import BeforeValidator
|
||||
from typing import TYPE_CHECKING, Any, Protocol
|
||||
|
||||
|
||||
if TYPE_CHECKING:
|
||||
@@ -23,20 +17,6 @@ if TYPE_CHECKING:
|
||||
from crewai.agent.core import Agent
|
||||
|
||||
|
||||
def _validate_a2a_extension(v: Any) -> Any:
|
||||
"""Validate that value implements A2AExtension protocol."""
|
||||
if not isinstance(v, A2AExtension):
|
||||
raise ValueError(
|
||||
f"Value must implement A2AExtension protocol. "
|
||||
f"Got {type(v).__name__} which is missing required methods."
|
||||
)
|
||||
return v
|
||||
|
||||
|
||||
ValidatedA2AExtension = Annotated[Any, BeforeValidator(_validate_a2a_extension)]
|
||||
|
||||
|
||||
@runtime_checkable
|
||||
class ConversationState(Protocol):
|
||||
"""Protocol for extension-specific conversation state.
|
||||
|
||||
@@ -53,36 +33,11 @@ class ConversationState(Protocol):
|
||||
...
|
||||
|
||||
|
||||
@runtime_checkable
|
||||
class A2AExtension(Protocol):
|
||||
"""Protocol for A2A wrapper extensions.
|
||||
|
||||
Extensions can implement this protocol to inject custom logic into
|
||||
the A2A conversation flow at various integration points.
|
||||
|
||||
Example:
|
||||
class MyExtension:
|
||||
def inject_tools(self, agent: Agent) -> None:
|
||||
# Add custom tools to the agent
|
||||
pass
|
||||
|
||||
def extract_state_from_history(
|
||||
self, conversation_history: Sequence[Message]
|
||||
) -> ConversationState | None:
|
||||
# Extract state from conversation
|
||||
return None
|
||||
|
||||
def augment_prompt(
|
||||
self, base_prompt: str, conversation_state: ConversationState | None
|
||||
) -> str:
|
||||
# Add custom instructions
|
||||
return base_prompt
|
||||
|
||||
def process_response(
|
||||
self, agent_response: Any, conversation_state: ConversationState | None
|
||||
) -> Any:
|
||||
# Modify response if needed
|
||||
return agent_response
|
||||
"""
|
||||
|
||||
def inject_tools(self, agent: Agent) -> None:
|
||||
|
||||
@@ -1,170 +1,34 @@
|
||||
"""A2A Protocol extension utilities.
|
||||
"""Extension registry factory for A2A configurations.
|
||||
|
||||
This module provides utilities for working with A2A protocol extensions as
|
||||
defined in the A2A specification. Extensions are capability declarations in
|
||||
AgentCard.capabilities.extensions using AgentExtension objects, activated
|
||||
via the X-A2A-Extensions HTTP header.
|
||||
|
||||
See: https://a2a-protocol.org/latest/topics/extensions/
|
||||
This module provides utilities for creating extension registries from A2A configurations.
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from typing import Any
|
||||
from typing import TYPE_CHECKING
|
||||
|
||||
from a2a.client.middleware import ClientCallContext, ClientCallInterceptor
|
||||
from a2a.extensions.common import (
|
||||
HTTP_EXTENSION_HEADER,
|
||||
)
|
||||
from a2a.types import AgentCard, AgentExtension
|
||||
|
||||
from crewai.a2a.config import A2AClientConfig, A2AConfig
|
||||
from crewai.a2a.extensions.base import ExtensionRegistry
|
||||
|
||||
|
||||
def get_extensions_from_config(
|
||||
a2a_config: list[A2AConfig | A2AClientConfig] | A2AConfig | A2AClientConfig,
|
||||
) -> list[str]:
|
||||
"""Extract extension URIs from A2A configuration.
|
||||
|
||||
Args:
|
||||
a2a_config: A2A configuration (single or list).
|
||||
|
||||
Returns:
|
||||
Deduplicated list of extension URIs from all configs.
|
||||
"""
|
||||
configs = a2a_config if isinstance(a2a_config, list) else [a2a_config]
|
||||
seen: set[str] = set()
|
||||
result: list[str] = []
|
||||
|
||||
for config in configs:
|
||||
if not isinstance(config, A2AClientConfig):
|
||||
continue
|
||||
for uri in config.extensions:
|
||||
if uri not in seen:
|
||||
seen.add(uri)
|
||||
result.append(uri)
|
||||
|
||||
return result
|
||||
|
||||
|
||||
class ExtensionsMiddleware(ClientCallInterceptor):
|
||||
"""Middleware to add X-A2A-Extensions header to requests.
|
||||
|
||||
This middleware adds the extensions header to all outgoing requests,
|
||||
declaring which A2A protocol extensions the client supports.
|
||||
"""
|
||||
|
||||
def __init__(self, extensions: list[str]) -> None:
|
||||
"""Initialize with extension URIs.
|
||||
|
||||
Args:
|
||||
extensions: List of extension URIs the client supports.
|
||||
"""
|
||||
self._extensions = extensions
|
||||
|
||||
async def intercept(
|
||||
self,
|
||||
method_name: str,
|
||||
request_payload: dict[str, Any],
|
||||
http_kwargs: dict[str, Any],
|
||||
agent_card: AgentCard | None,
|
||||
context: ClientCallContext | None,
|
||||
) -> tuple[dict[str, Any], dict[str, Any]]:
|
||||
"""Add extensions header to the request.
|
||||
|
||||
Args:
|
||||
method_name: The A2A method being called.
|
||||
request_payload: The JSON-RPC request payload.
|
||||
http_kwargs: HTTP request kwargs (headers, etc).
|
||||
agent_card: The target agent's card.
|
||||
context: Optional call context.
|
||||
|
||||
Returns:
|
||||
Tuple of (request_payload, modified_http_kwargs).
|
||||
"""
|
||||
if self._extensions:
|
||||
headers = http_kwargs.setdefault("headers", {})
|
||||
headers[HTTP_EXTENSION_HEADER] = ",".join(self._extensions)
|
||||
return request_payload, http_kwargs
|
||||
|
||||
|
||||
def validate_required_extensions(
|
||||
agent_card: AgentCard,
|
||||
client_extensions: list[str] | None,
|
||||
) -> list[AgentExtension]:
|
||||
"""Validate that client supports all required extensions from agent.
|
||||
|
||||
Args:
|
||||
agent_card: The agent's card with declared extensions.
|
||||
client_extensions: Extension URIs the client supports.
|
||||
|
||||
Returns:
|
||||
List of unsupported required extensions.
|
||||
|
||||
Raises:
|
||||
None - returns list of unsupported extensions for caller to handle.
|
||||
"""
|
||||
unsupported: list[AgentExtension] = []
|
||||
client_set = set(client_extensions or [])
|
||||
|
||||
if not agent_card.capabilities or not agent_card.capabilities.extensions:
|
||||
return unsupported
|
||||
|
||||
unsupported.extend(
|
||||
ext
|
||||
for ext in agent_card.capabilities.extensions
|
||||
if ext.required and ext.uri not in client_set
|
||||
)
|
||||
|
||||
return unsupported
|
||||
if TYPE_CHECKING:
|
||||
from crewai.a2a.config import A2AConfig
|
||||
|
||||
|
||||
def create_extension_registry_from_config(
|
||||
a2a_config: list[A2AConfig | A2AClientConfig] | A2AConfig | A2AClientConfig,
|
||||
a2a_config: list[A2AConfig] | A2AConfig,
|
||||
) -> ExtensionRegistry:
|
||||
"""Create an extension registry from A2A client configuration.
|
||||
|
||||
Extracts client_extensions from each A2AClientConfig and registers them
|
||||
with the ExtensionRegistry. These extensions provide CrewAI-specific
|
||||
processing hooks (tool injection, prompt augmentation, response processing).
|
||||
|
||||
Note: A2A protocol extensions (URI strings sent via X-A2A-Extensions header)
|
||||
are handled separately via get_extensions_from_config() and ExtensionsMiddleware.
|
||||
"""Create an extension registry from A2A configuration.
|
||||
|
||||
Args:
|
||||
a2a_config: A2A configuration (single or list).
|
||||
a2a_config: A2A configuration (single or list)
|
||||
|
||||
Returns:
|
||||
Extension registry with all client_extensions registered.
|
||||
|
||||
Example:
|
||||
class LoggingExtension:
|
||||
def inject_tools(self, agent): pass
|
||||
def extract_state_from_history(self, history): return None
|
||||
def augment_prompt(self, prompt, state): return prompt
|
||||
def process_response(self, response, state):
|
||||
print(f"Response: {response}")
|
||||
return response
|
||||
|
||||
config = A2AClientConfig(
|
||||
endpoint="https://agent.example.com",
|
||||
client_extensions=[LoggingExtension()],
|
||||
)
|
||||
registry = create_extension_registry_from_config(config)
|
||||
Configured extension registry with all applicable extensions
|
||||
"""
|
||||
registry = ExtensionRegistry()
|
||||
configs = a2a_config if isinstance(a2a_config, list) else [a2a_config]
|
||||
|
||||
seen: set[int] = set()
|
||||
|
||||
for config in configs:
|
||||
if isinstance(config, (A2AConfig, A2AClientConfig)):
|
||||
client_exts = getattr(config, "client_extensions", [])
|
||||
for extension in client_exts:
|
||||
ext_id = id(extension)
|
||||
if ext_id not in seen:
|
||||
seen.add(ext_id)
|
||||
registry.register(extension)
|
||||
for _ in configs:
|
||||
pass
|
||||
|
||||
return registry
|
||||
|
||||
@@ -1,305 +0,0 @@
|
||||
"""A2A protocol server extensions for CrewAI agents.
|
||||
|
||||
This module provides the base class and context for implementing A2A protocol
|
||||
extensions on the server side. Extensions allow agents to offer additional
|
||||
functionality beyond the core A2A specification.
|
||||
|
||||
See: https://a2a-protocol.org/latest/topics/extensions/
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from abc import ABC, abstractmethod
|
||||
from dataclasses import dataclass, field
|
||||
import logging
|
||||
from typing import TYPE_CHECKING, Annotated, Any
|
||||
|
||||
from a2a.types import AgentExtension
|
||||
from pydantic_core import CoreSchema, core_schema
|
||||
|
||||
|
||||
if TYPE_CHECKING:
|
||||
from a2a.server.context import ServerCallContext
|
||||
from pydantic import GetCoreSchemaHandler
|
||||
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
|
||||
@dataclass
|
||||
class ExtensionContext:
|
||||
"""Context passed to extension hooks during request processing.
|
||||
|
||||
Provides access to request metadata, client extensions, and shared state
|
||||
that extensions can read from and write to.
|
||||
|
||||
Attributes:
|
||||
metadata: Request metadata dict, includes extension-namespaced keys.
|
||||
client_extensions: Set of extension URIs the client declared support for.
|
||||
state: Mutable dict for extensions to share data during request lifecycle.
|
||||
server_context: The underlying A2A server call context.
|
||||
"""
|
||||
|
||||
metadata: dict[str, Any]
|
||||
client_extensions: set[str]
|
||||
state: dict[str, Any] = field(default_factory=dict)
|
||||
server_context: ServerCallContext | None = None
|
||||
|
||||
def get_extension_metadata(self, uri: str, key: str) -> Any | None:
|
||||
"""Get extension-specific metadata value.
|
||||
|
||||
Extension metadata uses namespaced keys in the format:
|
||||
"{extension_uri}/{key}"
|
||||
|
||||
Args:
|
||||
uri: The extension URI.
|
||||
key: The metadata key within the extension namespace.
|
||||
|
||||
Returns:
|
||||
The metadata value, or None if not present.
|
||||
"""
|
||||
full_key = f"{uri}/{key}"
|
||||
return self.metadata.get(full_key)
|
||||
|
||||
def set_extension_metadata(self, uri: str, key: str, value: Any) -> None:
|
||||
"""Set extension-specific metadata value.
|
||||
|
||||
Args:
|
||||
uri: The extension URI.
|
||||
key: The metadata key within the extension namespace.
|
||||
value: The value to set.
|
||||
"""
|
||||
full_key = f"{uri}/{key}"
|
||||
self.metadata[full_key] = value
|
||||
|
||||
|
||||
class ServerExtension(ABC):
|
||||
"""Base class for A2A protocol server extensions.
|
||||
|
||||
Subclass this to create custom extensions that modify agent behavior
|
||||
when clients activate them. Extensions are identified by URI and can
|
||||
be marked as required.
|
||||
|
||||
Example:
|
||||
class SamplingExtension(ServerExtension):
|
||||
uri = "urn:crewai:ext:sampling/v1"
|
||||
required = True
|
||||
|
||||
def __init__(self, max_tokens: int = 4096):
|
||||
self.max_tokens = max_tokens
|
||||
|
||||
@property
|
||||
def params(self) -> dict[str, Any]:
|
||||
return {"max_tokens": self.max_tokens}
|
||||
|
||||
async def on_request(self, context: ExtensionContext) -> None:
|
||||
limit = context.get_extension_metadata(self.uri, "limit")
|
||||
if limit:
|
||||
context.state["token_limit"] = int(limit)
|
||||
|
||||
async def on_response(self, context: ExtensionContext, result: Any) -> Any:
|
||||
return result
|
||||
"""
|
||||
|
||||
uri: Annotated[str, "Extension URI identifier. Must be unique."]
|
||||
required: Annotated[bool, "Whether clients must support this extension."] = False
|
||||
description: Annotated[
|
||||
str | None, "Human-readable description of the extension."
|
||||
] = None
|
||||
|
||||
@classmethod
|
||||
def __get_pydantic_core_schema__(
|
||||
cls,
|
||||
_source_type: Any,
|
||||
_handler: GetCoreSchemaHandler,
|
||||
) -> CoreSchema:
|
||||
"""Tell Pydantic how to validate ServerExtension instances."""
|
||||
return core_schema.is_instance_schema(cls)
|
||||
|
||||
@property
|
||||
def params(self) -> dict[str, Any] | None:
|
||||
"""Extension parameters to advertise in AgentCard.
|
||||
|
||||
Override this property to expose configuration that clients can read.
|
||||
|
||||
Returns:
|
||||
Dict of parameter names to values, or None.
|
||||
"""
|
||||
return None
|
||||
|
||||
def agent_extension(self) -> AgentExtension:
|
||||
"""Generate the AgentExtension object for the AgentCard.
|
||||
|
||||
Returns:
|
||||
AgentExtension with this extension's URI, required flag, and params.
|
||||
"""
|
||||
return AgentExtension(
|
||||
uri=self.uri,
|
||||
required=self.required if self.required else None,
|
||||
description=self.description,
|
||||
params=self.params,
|
||||
)
|
||||
|
||||
def is_active(self, context: ExtensionContext) -> bool:
|
||||
"""Check if this extension is active for the current request.
|
||||
|
||||
An extension is active if the client declared support for it.
|
||||
|
||||
Args:
|
||||
context: The extension context for the current request.
|
||||
|
||||
Returns:
|
||||
True if the client supports this extension.
|
||||
"""
|
||||
return self.uri in context.client_extensions
|
||||
|
||||
@abstractmethod
|
||||
async def on_request(self, context: ExtensionContext) -> None:
|
||||
"""Called before agent execution if extension is active.
|
||||
|
||||
Use this hook to:
|
||||
- Read extension-specific metadata from the request
|
||||
- Set up state for the execution
|
||||
- Modify execution parameters via context.state
|
||||
|
||||
Args:
|
||||
context: The extension context with request metadata and state.
|
||||
"""
|
||||
...
|
||||
|
||||
@abstractmethod
|
||||
async def on_response(self, context: ExtensionContext, result: Any) -> Any:
|
||||
"""Called after agent execution if extension is active.
|
||||
|
||||
Use this hook to:
|
||||
- Modify or enhance the result
|
||||
- Add extension-specific metadata to the response
|
||||
- Clean up any resources
|
||||
|
||||
Args:
|
||||
context: The extension context with request metadata and state.
|
||||
result: The agent execution result.
|
||||
|
||||
Returns:
|
||||
The result, potentially modified.
|
||||
"""
|
||||
...
|
||||
|
||||
|
||||
class ServerExtensionRegistry:
|
||||
"""Registry for managing server-side A2A protocol extensions.
|
||||
|
||||
Collects extensions and provides methods to generate AgentCapabilities
|
||||
and invoke extension hooks during request processing.
|
||||
"""
|
||||
|
||||
def __init__(self, extensions: list[ServerExtension] | None = None) -> None:
|
||||
"""Initialize the registry with optional extensions.
|
||||
|
||||
Args:
|
||||
extensions: Initial list of extensions to register.
|
||||
"""
|
||||
self._extensions: list[ServerExtension] = list(extensions) if extensions else []
|
||||
self._by_uri: dict[str, ServerExtension] = {
|
||||
ext.uri: ext for ext in self._extensions
|
||||
}
|
||||
|
||||
def register(self, extension: ServerExtension) -> None:
|
||||
"""Register an extension.
|
||||
|
||||
Args:
|
||||
extension: The extension to register.
|
||||
|
||||
Raises:
|
||||
ValueError: If an extension with the same URI is already registered.
|
||||
"""
|
||||
if extension.uri in self._by_uri:
|
||||
raise ValueError(f"Extension already registered: {extension.uri}")
|
||||
self._extensions.append(extension)
|
||||
self._by_uri[extension.uri] = extension
|
||||
|
||||
def get_agent_extensions(self) -> list[AgentExtension]:
|
||||
"""Get AgentExtension objects for all registered extensions.
|
||||
|
||||
Returns:
|
||||
List of AgentExtension objects for the AgentCard.
|
||||
"""
|
||||
return [ext.agent_extension() for ext in self._extensions]
|
||||
|
||||
def get_extension(self, uri: str) -> ServerExtension | None:
|
||||
"""Get an extension by URI.
|
||||
|
||||
Args:
|
||||
uri: The extension URI.
|
||||
|
||||
Returns:
|
||||
The extension, or None if not found.
|
||||
"""
|
||||
return self._by_uri.get(uri)
|
||||
|
||||
@staticmethod
|
||||
def create_context(
|
||||
metadata: dict[str, Any],
|
||||
client_extensions: set[str],
|
||||
server_context: ServerCallContext | None = None,
|
||||
) -> ExtensionContext:
|
||||
"""Create an ExtensionContext for a request.
|
||||
|
||||
Args:
|
||||
metadata: Request metadata dict.
|
||||
client_extensions: Set of extension URIs from client.
|
||||
server_context: Optional server call context.
|
||||
|
||||
Returns:
|
||||
ExtensionContext for use in hooks.
|
||||
"""
|
||||
return ExtensionContext(
|
||||
metadata=metadata,
|
||||
client_extensions=client_extensions,
|
||||
server_context=server_context,
|
||||
)
|
||||
|
||||
async def invoke_on_request(self, context: ExtensionContext) -> None:
|
||||
"""Invoke on_request hooks for all active extensions.
|
||||
|
||||
Tracks activated extensions and isolates errors from individual hooks.
|
||||
|
||||
Args:
|
||||
context: The extension context for the request.
|
||||
"""
|
||||
for extension in self._extensions:
|
||||
if extension.is_active(context):
|
||||
try:
|
||||
await extension.on_request(context)
|
||||
if context.server_context is not None:
|
||||
context.server_context.activated_extensions.add(extension.uri)
|
||||
except Exception:
|
||||
logger.exception(
|
||||
"Extension on_request hook failed",
|
||||
extra={"extension": extension.uri},
|
||||
)
|
||||
|
||||
async def invoke_on_response(self, context: ExtensionContext, result: Any) -> Any:
|
||||
"""Invoke on_response hooks for all active extensions.
|
||||
|
||||
Isolates errors from individual hooks to prevent one failing extension
|
||||
from breaking the entire response.
|
||||
|
||||
Args:
|
||||
context: The extension context for the request.
|
||||
result: The agent execution result.
|
||||
|
||||
Returns:
|
||||
The result after all extensions have processed it.
|
||||
"""
|
||||
processed = result
|
||||
for extension in self._extensions:
|
||||
if extension.is_active(context):
|
||||
try:
|
||||
processed = await extension.on_response(context, processed)
|
||||
except Exception:
|
||||
logger.exception(
|
||||
"Extension on_response hook failed",
|
||||
extra={"extension": extension.uri},
|
||||
)
|
||||
return processed
|
||||
@@ -51,13 +51,6 @@ ACTIONABLE_STATES: frozenset[TaskState] = frozenset(
|
||||
}
|
||||
)
|
||||
|
||||
PENDING_STATES: frozenset[TaskState] = frozenset(
|
||||
{
|
||||
TaskState.submitted,
|
||||
TaskState.working,
|
||||
}
|
||||
)
|
||||
|
||||
|
||||
class TaskStateResult(TypedDict):
|
||||
"""Result dictionary from processing A2A task state."""
|
||||
@@ -279,9 +272,6 @@ def process_task_state(
|
||||
history=new_messages,
|
||||
)
|
||||
|
||||
if a2a_task.status.state in PENDING_STATES:
|
||||
return None
|
||||
|
||||
return None
|
||||
|
||||
|
||||
|
||||
@@ -38,18 +38,3 @@ You MUST now:
|
||||
DO NOT send another request - the task is already done.
|
||||
</REMOTE_AGENT_STATUS>
|
||||
"""
|
||||
|
||||
REMOTE_AGENT_RESPONSE_NOTICE: Final[str] = """
|
||||
<REMOTE_AGENT_STATUS>
|
||||
STATUS: RESPONSE_RECEIVED
|
||||
The remote agent has responded. Their response is in the conversation history above.
|
||||
|
||||
You MUST now:
|
||||
1. Set is_a2a=false (the remote task is complete and cannot receive more messages)
|
||||
2. Provide YOUR OWN response to the original task based on the information received
|
||||
|
||||
IMPORTANT: Your response should be addressed to the USER who gave you the original task.
|
||||
Report what the remote agent told you in THIRD PERSON (e.g., "The remote agent said..." or "I learned that...").
|
||||
Do NOT address the remote agent directly or use "you" to refer to them.
|
||||
</REMOTE_AGENT_STATUS>
|
||||
"""
|
||||
|
||||
@@ -36,17 +36,6 @@ except ImportError:
|
||||
|
||||
|
||||
TransportType = Literal["JSONRPC", "GRPC", "HTTP+JSON"]
|
||||
ProtocolVersion = Literal[
|
||||
"0.2.0",
|
||||
"0.2.1",
|
||||
"0.2.2",
|
||||
"0.2.3",
|
||||
"0.2.4",
|
||||
"0.2.5",
|
||||
"0.2.6",
|
||||
"0.3.0",
|
||||
"0.4.0",
|
||||
]
|
||||
|
||||
http_url_adapter: TypeAdapter[HttpUrl] = TypeAdapter(HttpUrl)
|
||||
|
||||
|
||||
@@ -2,28 +2,12 @@
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from typing import TYPE_CHECKING, Any, NamedTuple, Protocol, TypedDict
|
||||
from typing import TYPE_CHECKING, Any, Protocol, TypedDict
|
||||
|
||||
from pydantic import GetCoreSchemaHandler
|
||||
from pydantic_core import CoreSchema, core_schema
|
||||
|
||||
|
||||
class CommonParams(NamedTuple):
|
||||
"""Common parameters shared across all update handlers.
|
||||
|
||||
Groups the frequently-passed parameters to reduce duplication.
|
||||
"""
|
||||
|
||||
turn_number: int
|
||||
is_multiturn: bool
|
||||
agent_role: str | None
|
||||
endpoint: str
|
||||
a2a_agent_name: str | None
|
||||
context_id: str | None
|
||||
from_task: Any
|
||||
from_agent: Any
|
||||
|
||||
|
||||
if TYPE_CHECKING:
|
||||
from a2a.client import Client
|
||||
from a2a.types import AgentCard, Message, Task
|
||||
@@ -79,8 +63,8 @@ class PushNotificationResultStore(Protocol):
|
||||
@classmethod
|
||||
def __get_pydantic_core_schema__(
|
||||
cls,
|
||||
_source_type: Any,
|
||||
_handler: GetCoreSchemaHandler,
|
||||
source_type: Any,
|
||||
handler: GetCoreSchemaHandler,
|
||||
) -> CoreSchema:
|
||||
return core_schema.any_schema()
|
||||
|
||||
@@ -146,31 +130,3 @@ class UpdateHandler(Protocol):
|
||||
Result dictionary with status, result/error, and history.
|
||||
"""
|
||||
...
|
||||
|
||||
|
||||
def extract_common_params(kwargs: BaseHandlerKwargs) -> CommonParams:
|
||||
"""Extract common parameters from handler kwargs.
|
||||
|
||||
Args:
|
||||
kwargs: Handler kwargs dict.
|
||||
|
||||
Returns:
|
||||
CommonParams with extracted values.
|
||||
|
||||
Raises:
|
||||
ValueError: If endpoint is not provided.
|
||||
"""
|
||||
endpoint = kwargs.get("endpoint")
|
||||
if endpoint is None:
|
||||
raise ValueError("endpoint is required for update handlers")
|
||||
|
||||
return CommonParams(
|
||||
turn_number=kwargs.get("turn_number", 0),
|
||||
is_multiturn=kwargs.get("is_multiturn", False),
|
||||
agent_role=kwargs.get("agent_role"),
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=kwargs.get("a2a_agent_name"),
|
||||
context_id=kwargs.get("context_id"),
|
||||
from_task=kwargs.get("from_task"),
|
||||
from_agent=kwargs.get("from_agent"),
|
||||
)
|
||||
|
||||
@@ -94,7 +94,7 @@ async def _poll_task_until_complete(
|
||||
A2APollingStatusEvent(
|
||||
task_id=task_id,
|
||||
context_id=effective_context_id,
|
||||
state=str(task.status.state.value),
|
||||
state=str(task.status.state.value) if task.status.state else "unknown",
|
||||
elapsed_seconds=elapsed,
|
||||
poll_count=poll_count,
|
||||
endpoint=endpoint,
|
||||
@@ -325,7 +325,7 @@ class PollingHandler:
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AConnectionErrorEvent(
|
||||
endpoint=endpoint,
|
||||
endpoint=endpoint or "",
|
||||
error=str(e),
|
||||
error_type="unexpected_error",
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
|
||||
@@ -2,30 +2,10 @@
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from typing import Annotated
|
||||
|
||||
from a2a.types import PushNotificationAuthenticationInfo
|
||||
from pydantic import AnyHttpUrl, BaseModel, BeforeValidator, Field
|
||||
from pydantic import AnyHttpUrl, BaseModel, Field
|
||||
|
||||
from crewai.a2a.updates.base import PushNotificationResultStore
|
||||
from crewai.a2a.updates.push_notifications.signature import WebhookSignatureConfig
|
||||
|
||||
|
||||
def _coerce_signature(
|
||||
value: str | WebhookSignatureConfig | None,
|
||||
) -> WebhookSignatureConfig | None:
|
||||
"""Convert string secret to WebhookSignatureConfig."""
|
||||
if value is None:
|
||||
return None
|
||||
if isinstance(value, str):
|
||||
return WebhookSignatureConfig.hmac_sha256(secret=value)
|
||||
return value
|
||||
|
||||
|
||||
SignatureInput = Annotated[
|
||||
WebhookSignatureConfig | None,
|
||||
BeforeValidator(_coerce_signature),
|
||||
]
|
||||
|
||||
|
||||
class PushNotificationConfig(BaseModel):
|
||||
@@ -39,8 +19,6 @@ class PushNotificationConfig(BaseModel):
|
||||
timeout: Max seconds to wait for task completion.
|
||||
interval: Seconds between result polling attempts.
|
||||
result_store: Store for receiving push notification results.
|
||||
signature: HMAC signature config. Pass a string (secret) for defaults,
|
||||
or WebhookSignatureConfig for custom settings.
|
||||
"""
|
||||
|
||||
url: AnyHttpUrl = Field(description="Callback URL for push notifications")
|
||||
@@ -58,8 +36,3 @@ class PushNotificationConfig(BaseModel):
|
||||
result_store: PushNotificationResultStore | None = Field(
|
||||
default=None, description="Result store for push notification handling"
|
||||
)
|
||||
signature: SignatureInput = Field(
|
||||
default=None,
|
||||
description="HMAC signature config. Pass a string (secret) for simple usage, "
|
||||
"or WebhookSignatureConfig for custom headers/tolerance.",
|
||||
)
|
||||
|
||||
@@ -24,10 +24,8 @@ from crewai.a2a.task_helpers import (
|
||||
send_message_and_get_task_id,
|
||||
)
|
||||
from crewai.a2a.updates.base import (
|
||||
CommonParams,
|
||||
PushNotificationHandlerKwargs,
|
||||
PushNotificationResultStore,
|
||||
extract_common_params,
|
||||
)
|
||||
from crewai.events.event_bus import crewai_event_bus
|
||||
from crewai.events.types.a2a_events import (
|
||||
@@ -41,81 +39,10 @@ from crewai.events.types.a2a_events import (
|
||||
if TYPE_CHECKING:
|
||||
from a2a.types import Task as A2ATask
|
||||
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
|
||||
def _handle_push_error(
|
||||
error: Exception,
|
||||
error_msg: str,
|
||||
error_type: str,
|
||||
new_messages: list[Message],
|
||||
agent_branch: Any | None,
|
||||
params: CommonParams,
|
||||
task_id: str | None,
|
||||
status_code: int | None = None,
|
||||
) -> TaskStateResult:
|
||||
"""Handle push notification errors with consistent event emission.
|
||||
|
||||
Args:
|
||||
error: The exception that occurred.
|
||||
error_msg: Formatted error message for the result.
|
||||
error_type: Type of error for the event.
|
||||
new_messages: List to append error message to.
|
||||
agent_branch: Agent tree branch for events.
|
||||
params: Common handler parameters.
|
||||
task_id: A2A task ID.
|
||||
status_code: HTTP status code if applicable.
|
||||
|
||||
Returns:
|
||||
TaskStateResult with failed status.
|
||||
"""
|
||||
error_message = Message(
|
||||
role=Role.agent,
|
||||
message_id=str(uuid.uuid4()),
|
||||
parts=[Part(root=TextPart(text=error_msg))],
|
||||
context_id=params.context_id,
|
||||
task_id=task_id,
|
||||
)
|
||||
new_messages.append(error_message)
|
||||
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AConnectionErrorEvent(
|
||||
endpoint=params.endpoint,
|
||||
error=str(error),
|
||||
error_type=error_type,
|
||||
status_code=status_code,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
operation="push_notification",
|
||||
context_id=params.context_id,
|
||||
task_id=task_id,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
),
|
||||
)
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AResponseReceivedEvent(
|
||||
response=error_msg,
|
||||
turn_number=params.turn_number,
|
||||
context_id=params.context_id,
|
||||
is_multiturn=params.is_multiturn,
|
||||
status="failed",
|
||||
final=True,
|
||||
agent_role=params.agent_role,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
),
|
||||
)
|
||||
return TaskStateResult(
|
||||
status=TaskState.failed,
|
||||
error=error_msg,
|
||||
history=new_messages,
|
||||
)
|
||||
|
||||
|
||||
async def _wait_for_push_result(
|
||||
task_id: str,
|
||||
result_store: PushNotificationResultStore,
|
||||
@@ -199,8 +126,15 @@ class PushNotificationHandler:
|
||||
polling_timeout = kwargs.get("polling_timeout", 300.0)
|
||||
polling_interval = kwargs.get("polling_interval", 2.0)
|
||||
agent_branch = kwargs.get("agent_branch")
|
||||
turn_number = kwargs.get("turn_number", 0)
|
||||
is_multiturn = kwargs.get("is_multiturn", False)
|
||||
agent_role = kwargs.get("agent_role")
|
||||
context_id = kwargs.get("context_id")
|
||||
task_id = kwargs.get("task_id")
|
||||
params = extract_common_params(kwargs)
|
||||
endpoint = kwargs.get("endpoint")
|
||||
a2a_agent_name = kwargs.get("a2a_agent_name")
|
||||
from_task = kwargs.get("from_task")
|
||||
from_agent = kwargs.get("from_agent")
|
||||
|
||||
if config is None:
|
||||
error_msg = (
|
||||
@@ -209,15 +143,15 @@ class PushNotificationHandler:
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AConnectionErrorEvent(
|
||||
endpoint=params.endpoint,
|
||||
endpoint=endpoint or "",
|
||||
error=error_msg,
|
||||
error_type="configuration_error",
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
operation="push_notification",
|
||||
context_id=params.context_id,
|
||||
context_id=context_id,
|
||||
task_id=task_id,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
return TaskStateResult(
|
||||
@@ -233,15 +167,15 @@ class PushNotificationHandler:
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AConnectionErrorEvent(
|
||||
endpoint=params.endpoint,
|
||||
endpoint=endpoint or "",
|
||||
error=error_msg,
|
||||
error_type="configuration_error",
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
operation="push_notification",
|
||||
context_id=params.context_id,
|
||||
context_id=context_id,
|
||||
task_id=task_id,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
return TaskStateResult(
|
||||
@@ -255,14 +189,14 @@ class PushNotificationHandler:
|
||||
event_stream=client.send_message(message),
|
||||
new_messages=new_messages,
|
||||
agent_card=agent_card,
|
||||
turn_number=params.turn_number,
|
||||
is_multiturn=params.is_multiturn,
|
||||
agent_role=params.agent_role,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
context_id=params.context_id,
|
||||
turn_number=turn_number,
|
||||
is_multiturn=is_multiturn,
|
||||
agent_role=agent_role,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
context_id=context_id,
|
||||
)
|
||||
|
||||
if not isinstance(result_or_task_id, str):
|
||||
@@ -274,12 +208,12 @@ class PushNotificationHandler:
|
||||
agent_branch,
|
||||
A2APushNotificationRegisteredEvent(
|
||||
task_id=task_id,
|
||||
context_id=params.context_id,
|
||||
context_id=context_id,
|
||||
callback_url=str(config.url),
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
|
||||
@@ -295,11 +229,11 @@ class PushNotificationHandler:
|
||||
timeout=polling_timeout,
|
||||
poll_interval=polling_interval,
|
||||
agent_branch=agent_branch,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
context_id=params.context_id,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
context_id=context_id,
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
)
|
||||
|
||||
if final_task is None:
|
||||
@@ -313,13 +247,13 @@ class PushNotificationHandler:
|
||||
a2a_task=final_task,
|
||||
new_messages=new_messages,
|
||||
agent_card=agent_card,
|
||||
turn_number=params.turn_number,
|
||||
is_multiturn=params.is_multiturn,
|
||||
agent_role=params.agent_role,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
turn_number=turn_number,
|
||||
is_multiturn=is_multiturn,
|
||||
agent_role=agent_role,
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
)
|
||||
if result:
|
||||
return result
|
||||
@@ -331,24 +265,98 @@ class PushNotificationHandler:
|
||||
)
|
||||
|
||||
except A2AClientHTTPError as e:
|
||||
return _handle_push_error(
|
||||
error=e,
|
||||
error_msg=f"HTTP Error {e.status_code}: {e!s}",
|
||||
error_type="http_error",
|
||||
new_messages=new_messages,
|
||||
agent_branch=agent_branch,
|
||||
params=params,
|
||||
error_msg = f"HTTP Error {e.status_code}: {e!s}"
|
||||
|
||||
error_message = Message(
|
||||
role=Role.agent,
|
||||
message_id=str(uuid.uuid4()),
|
||||
parts=[Part(root=TextPart(text=error_msg))],
|
||||
context_id=context_id,
|
||||
task_id=task_id,
|
||||
status_code=e.status_code,
|
||||
)
|
||||
new_messages.append(error_message)
|
||||
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AConnectionErrorEvent(
|
||||
endpoint=endpoint or "",
|
||||
error=str(e),
|
||||
error_type="http_error",
|
||||
status_code=e.status_code,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
operation="push_notification",
|
||||
context_id=context_id,
|
||||
task_id=task_id,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AResponseReceivedEvent(
|
||||
response=error_msg,
|
||||
turn_number=turn_number,
|
||||
context_id=context_id,
|
||||
is_multiturn=is_multiturn,
|
||||
status="failed",
|
||||
final=True,
|
||||
agent_role=agent_role,
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
return TaskStateResult(
|
||||
status=TaskState.failed,
|
||||
error=error_msg,
|
||||
history=new_messages,
|
||||
)
|
||||
|
||||
except Exception as e:
|
||||
return _handle_push_error(
|
||||
error=e,
|
||||
error_msg=f"Unexpected error during push notification: {e!s}",
|
||||
error_type="unexpected_error",
|
||||
new_messages=new_messages,
|
||||
agent_branch=agent_branch,
|
||||
params=params,
|
||||
error_msg = f"Unexpected error during push notification: {e!s}"
|
||||
|
||||
error_message = Message(
|
||||
role=Role.agent,
|
||||
message_id=str(uuid.uuid4()),
|
||||
parts=[Part(root=TextPart(text=error_msg))],
|
||||
context_id=context_id,
|
||||
task_id=task_id,
|
||||
)
|
||||
new_messages.append(error_message)
|
||||
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AConnectionErrorEvent(
|
||||
endpoint=endpoint or "",
|
||||
error=str(e),
|
||||
error_type="unexpected_error",
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
operation="push_notification",
|
||||
context_id=context_id,
|
||||
task_id=task_id,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AResponseReceivedEvent(
|
||||
response=error_msg,
|
||||
turn_number=turn_number,
|
||||
context_id=context_id,
|
||||
is_multiturn=is_multiturn,
|
||||
status="failed",
|
||||
final=True,
|
||||
agent_role=agent_role,
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
return TaskStateResult(
|
||||
status=TaskState.failed,
|
||||
error=error_msg,
|
||||
history=new_messages,
|
||||
)
|
||||
|
||||
@@ -1,87 +0,0 @@
|
||||
"""Webhook signature configuration for push notifications."""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from enum import Enum
|
||||
import secrets
|
||||
|
||||
from pydantic import BaseModel, Field, SecretStr
|
||||
|
||||
|
||||
class WebhookSignatureMode(str, Enum):
|
||||
"""Signature mode for webhook push notifications."""
|
||||
|
||||
NONE = "none"
|
||||
HMAC_SHA256 = "hmac_sha256"
|
||||
|
||||
|
||||
class WebhookSignatureConfig(BaseModel):
|
||||
"""Configuration for webhook signature verification.
|
||||
|
||||
Provides cryptographic integrity verification and replay attack protection
|
||||
for A2A push notifications.
|
||||
|
||||
Attributes:
|
||||
mode: Signature mode (none or hmac_sha256).
|
||||
secret: Shared secret for HMAC computation (required for hmac_sha256 mode).
|
||||
timestamp_tolerance_seconds: Max allowed age of timestamps for replay protection.
|
||||
header_name: HTTP header name for the signature.
|
||||
timestamp_header_name: HTTP header name for the timestamp.
|
||||
"""
|
||||
|
||||
mode: WebhookSignatureMode = Field(
|
||||
default=WebhookSignatureMode.NONE,
|
||||
description="Signature verification mode",
|
||||
)
|
||||
secret: SecretStr | None = Field(
|
||||
default=None,
|
||||
description="Shared secret for HMAC computation",
|
||||
)
|
||||
timestamp_tolerance_seconds: int = Field(
|
||||
default=300,
|
||||
ge=0,
|
||||
description="Max allowed timestamp age in seconds (5 min default)",
|
||||
)
|
||||
header_name: str = Field(
|
||||
default="X-A2A-Signature",
|
||||
description="HTTP header name for the signature",
|
||||
)
|
||||
timestamp_header_name: str = Field(
|
||||
default="X-A2A-Signature-Timestamp",
|
||||
description="HTTP header name for the timestamp",
|
||||
)
|
||||
|
||||
@classmethod
|
||||
def generate_secret(cls, length: int = 32) -> str:
|
||||
"""Generate a cryptographically secure random secret.
|
||||
|
||||
Args:
|
||||
length: Number of random bytes to generate (default 32).
|
||||
|
||||
Returns:
|
||||
URL-safe base64-encoded secret string.
|
||||
"""
|
||||
return secrets.token_urlsafe(length)
|
||||
|
||||
@classmethod
|
||||
def hmac_sha256(
|
||||
cls,
|
||||
secret: str | SecretStr,
|
||||
timestamp_tolerance_seconds: int = 300,
|
||||
) -> WebhookSignatureConfig:
|
||||
"""Create an HMAC-SHA256 signature configuration.
|
||||
|
||||
Args:
|
||||
secret: Shared secret for HMAC computation.
|
||||
timestamp_tolerance_seconds: Max allowed timestamp age in seconds.
|
||||
|
||||
Returns:
|
||||
Configured WebhookSignatureConfig for HMAC-SHA256.
|
||||
"""
|
||||
if isinstance(secret, str):
|
||||
secret = SecretStr(secret)
|
||||
return cls(
|
||||
mode=WebhookSignatureMode.HMAC_SHA256,
|
||||
secret=secret,
|
||||
timestamp_tolerance_seconds=timestamp_tolerance_seconds,
|
||||
)
|
||||
@@ -2,9 +2,6 @@
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
import asyncio
|
||||
import logging
|
||||
from typing import Final
|
||||
import uuid
|
||||
|
||||
from a2a.client import Client
|
||||
@@ -14,10 +11,7 @@ from a2a.types import (
|
||||
Message,
|
||||
Part,
|
||||
Role,
|
||||
Task,
|
||||
TaskArtifactUpdateEvent,
|
||||
TaskIdParams,
|
||||
TaskQueryParams,
|
||||
TaskState,
|
||||
TaskStatusUpdateEvent,
|
||||
TextPart,
|
||||
@@ -30,10 +24,7 @@ from crewai.a2a.task_helpers import (
|
||||
TaskStateResult,
|
||||
process_task_state,
|
||||
)
|
||||
from crewai.a2a.updates.base import StreamingHandlerKwargs, extract_common_params
|
||||
from crewai.a2a.updates.streaming.params import (
|
||||
process_status_update,
|
||||
)
|
||||
from crewai.a2a.updates.base import StreamingHandlerKwargs
|
||||
from crewai.events.event_bus import crewai_event_bus
|
||||
from crewai.events.types.a2a_events import (
|
||||
A2AArtifactReceivedEvent,
|
||||
@@ -44,194 +35,9 @@ from crewai.events.types.a2a_events import (
|
||||
)
|
||||
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
MAX_RESUBSCRIBE_ATTEMPTS: Final[int] = 3
|
||||
RESUBSCRIBE_BACKOFF_BASE: Final[float] = 1.0
|
||||
|
||||
|
||||
class StreamingHandler:
|
||||
"""SSE streaming-based update handler."""
|
||||
|
||||
@staticmethod
|
||||
async def _try_recover_from_interruption( # type: ignore[misc]
|
||||
client: Client,
|
||||
task_id: str,
|
||||
new_messages: list[Message],
|
||||
agent_card: AgentCard,
|
||||
result_parts: list[str],
|
||||
**kwargs: Unpack[StreamingHandlerKwargs],
|
||||
) -> TaskStateResult | None:
|
||||
"""Attempt to recover from a stream interruption by checking task state.
|
||||
|
||||
If the task completed while we were disconnected, returns the result.
|
||||
If the task is still running, attempts to resubscribe and continue.
|
||||
|
||||
Args:
|
||||
client: A2A client instance.
|
||||
task_id: The task ID to recover.
|
||||
new_messages: List of collected messages.
|
||||
agent_card: The agent card.
|
||||
result_parts: Accumulated result text parts.
|
||||
**kwargs: Handler parameters.
|
||||
|
||||
Returns:
|
||||
TaskStateResult if recovery succeeded (task finished or resubscribe worked).
|
||||
None if recovery not possible (caller should handle failure).
|
||||
|
||||
Note:
|
||||
When None is returned, recovery failed and the original exception should
|
||||
be handled by the caller. All recovery attempts are logged.
|
||||
"""
|
||||
params = extract_common_params(kwargs) # type: ignore[arg-type]
|
||||
|
||||
try:
|
||||
a2a_task: Task = await client.get_task(TaskQueryParams(id=task_id))
|
||||
|
||||
if a2a_task.status.state in TERMINAL_STATES:
|
||||
logger.info(
|
||||
"Task completed during stream interruption",
|
||||
extra={"task_id": task_id, "state": str(a2a_task.status.state)},
|
||||
)
|
||||
return process_task_state(
|
||||
a2a_task=a2a_task,
|
||||
new_messages=new_messages,
|
||||
agent_card=agent_card,
|
||||
turn_number=params.turn_number,
|
||||
is_multiturn=params.is_multiturn,
|
||||
agent_role=params.agent_role,
|
||||
result_parts=result_parts,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
)
|
||||
|
||||
if a2a_task.status.state in ACTIONABLE_STATES:
|
||||
logger.info(
|
||||
"Task in actionable state during stream interruption",
|
||||
extra={"task_id": task_id, "state": str(a2a_task.status.state)},
|
||||
)
|
||||
return process_task_state(
|
||||
a2a_task=a2a_task,
|
||||
new_messages=new_messages,
|
||||
agent_card=agent_card,
|
||||
turn_number=params.turn_number,
|
||||
is_multiturn=params.is_multiturn,
|
||||
agent_role=params.agent_role,
|
||||
result_parts=result_parts,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
is_final=False,
|
||||
)
|
||||
|
||||
logger.info(
|
||||
"Task still running, attempting resubscribe",
|
||||
extra={"task_id": task_id, "state": str(a2a_task.status.state)},
|
||||
)
|
||||
|
||||
for attempt in range(MAX_RESUBSCRIBE_ATTEMPTS):
|
||||
try:
|
||||
backoff = RESUBSCRIBE_BACKOFF_BASE * (2**attempt)
|
||||
if attempt > 0:
|
||||
await asyncio.sleep(backoff)
|
||||
|
||||
event_stream = client.resubscribe(TaskIdParams(id=task_id))
|
||||
|
||||
async for event in event_stream:
|
||||
if isinstance(event, tuple):
|
||||
resubscribed_task, update = event
|
||||
|
||||
is_final_update = (
|
||||
process_status_update(update, result_parts)
|
||||
if isinstance(update, TaskStatusUpdateEvent)
|
||||
else False
|
||||
)
|
||||
|
||||
if isinstance(update, TaskArtifactUpdateEvent):
|
||||
artifact = update.artifact
|
||||
result_parts.extend(
|
||||
part.root.text
|
||||
for part in artifact.parts
|
||||
if part.root.kind == "text"
|
||||
)
|
||||
|
||||
if (
|
||||
is_final_update
|
||||
or resubscribed_task.status.state
|
||||
in TERMINAL_STATES | ACTIONABLE_STATES
|
||||
):
|
||||
return process_task_state(
|
||||
a2a_task=resubscribed_task,
|
||||
new_messages=new_messages,
|
||||
agent_card=agent_card,
|
||||
turn_number=params.turn_number,
|
||||
is_multiturn=params.is_multiturn,
|
||||
agent_role=params.agent_role,
|
||||
result_parts=result_parts,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
is_final=is_final_update,
|
||||
)
|
||||
|
||||
elif isinstance(event, Message):
|
||||
new_messages.append(event)
|
||||
result_parts.extend(
|
||||
part.root.text
|
||||
for part in event.parts
|
||||
if part.root.kind == "text"
|
||||
)
|
||||
|
||||
final_task = await client.get_task(TaskQueryParams(id=task_id))
|
||||
return process_task_state(
|
||||
a2a_task=final_task,
|
||||
new_messages=new_messages,
|
||||
agent_card=agent_card,
|
||||
turn_number=params.turn_number,
|
||||
is_multiturn=params.is_multiturn,
|
||||
agent_role=params.agent_role,
|
||||
result_parts=result_parts,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
)
|
||||
|
||||
except Exception as resubscribe_error: # noqa: PERF203
|
||||
logger.warning(
|
||||
"Resubscribe attempt failed",
|
||||
extra={
|
||||
"task_id": task_id,
|
||||
"attempt": attempt + 1,
|
||||
"max_attempts": MAX_RESUBSCRIBE_ATTEMPTS,
|
||||
"error": str(resubscribe_error),
|
||||
},
|
||||
)
|
||||
if attempt == MAX_RESUBSCRIBE_ATTEMPTS - 1:
|
||||
return None
|
||||
|
||||
except Exception as e:
|
||||
logger.warning(
|
||||
"Failed to recover from stream interruption due to unexpected error",
|
||||
extra={
|
||||
"task_id": task_id,
|
||||
"error": str(e),
|
||||
"error_type": type(e).__name__,
|
||||
},
|
||||
exc_info=True,
|
||||
)
|
||||
return None
|
||||
|
||||
logger.warning(
|
||||
"Recovery exhausted all resubscribe attempts without success",
|
||||
extra={"task_id": task_id, "max_attempts": MAX_RESUBSCRIBE_ATTEMPTS},
|
||||
)
|
||||
return None
|
||||
|
||||
@staticmethod
|
||||
async def execute(
|
||||
client: Client,
|
||||
@@ -252,40 +58,42 @@ class StreamingHandler:
|
||||
Returns:
|
||||
Dictionary with status, result/error, and history.
|
||||
"""
|
||||
context_id = kwargs.get("context_id")
|
||||
task_id = kwargs.get("task_id")
|
||||
turn_number = kwargs.get("turn_number", 0)
|
||||
is_multiturn = kwargs.get("is_multiturn", False)
|
||||
agent_role = kwargs.get("agent_role")
|
||||
endpoint = kwargs.get("endpoint")
|
||||
a2a_agent_name = kwargs.get("a2a_agent_name")
|
||||
from_task = kwargs.get("from_task")
|
||||
from_agent = kwargs.get("from_agent")
|
||||
agent_branch = kwargs.get("agent_branch")
|
||||
params = extract_common_params(kwargs)
|
||||
|
||||
result_parts: list[str] = []
|
||||
final_result: TaskStateResult | None = None
|
||||
event_stream = client.send_message(message)
|
||||
chunk_index = 0
|
||||
current_task_id: str | None = task_id
|
||||
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AStreamingStartedEvent(
|
||||
task_id=task_id,
|
||||
context_id=params.context_id,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
turn_number=params.turn_number,
|
||||
is_multiturn=params.is_multiturn,
|
||||
agent_role=params.agent_role,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
context_id=context_id,
|
||||
endpoint=endpoint or "",
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
turn_number=turn_number,
|
||||
is_multiturn=is_multiturn,
|
||||
agent_role=agent_role,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
|
||||
try:
|
||||
async for event in event_stream:
|
||||
if isinstance(event, tuple):
|
||||
a2a_task, _ = event
|
||||
current_task_id = a2a_task.id
|
||||
|
||||
if isinstance(event, Message):
|
||||
new_messages.append(event)
|
||||
message_context_id = event.context_id or params.context_id
|
||||
message_context_id = event.context_id or context_id
|
||||
for part in event.parts:
|
||||
if part.root.kind == "text":
|
||||
text = part.root.text
|
||||
@@ -297,12 +105,12 @@ class StreamingHandler:
|
||||
context_id=message_context_id,
|
||||
chunk=text,
|
||||
chunk_index=chunk_index,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
turn_number=params.turn_number,
|
||||
is_multiturn=params.is_multiturn,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
turn_number=turn_number,
|
||||
is_multiturn=is_multiturn,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
chunk_index += 1
|
||||
@@ -320,12 +128,12 @@ class StreamingHandler:
|
||||
artifact_size = None
|
||||
if artifact.parts:
|
||||
artifact_size = sum(
|
||||
len(p.root.text.encode())
|
||||
len(p.root.text.encode("utf-8"))
|
||||
if p.root.kind == "text"
|
||||
else len(getattr(p.root, "data", b""))
|
||||
for p in artifact.parts
|
||||
)
|
||||
effective_context_id = a2a_task.context_id or params.context_id
|
||||
effective_context_id = a2a_task.context_id or context_id
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AArtifactReceivedEvent(
|
||||
@@ -339,21 +147,29 @@ class StreamingHandler:
|
||||
size_bytes=artifact_size,
|
||||
append=update.append or False,
|
||||
last_chunk=update.last_chunk or False,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
context_id=effective_context_id,
|
||||
turn_number=params.turn_number,
|
||||
is_multiturn=params.is_multiturn,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
turn_number=turn_number,
|
||||
is_multiturn=is_multiturn,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
|
||||
is_final_update = (
|
||||
process_status_update(update, result_parts)
|
||||
if isinstance(update, TaskStatusUpdateEvent)
|
||||
else False
|
||||
)
|
||||
is_final_update = False
|
||||
if isinstance(update, TaskStatusUpdateEvent):
|
||||
is_final_update = update.final
|
||||
if (
|
||||
update.status
|
||||
and update.status.message
|
||||
and update.status.message.parts
|
||||
):
|
||||
result_parts.extend(
|
||||
part.root.text
|
||||
for part in update.status.message.parts
|
||||
if part.root.kind == "text" and part.root.text
|
||||
)
|
||||
|
||||
if (
|
||||
not is_final_update
|
||||
@@ -366,68 +182,27 @@ class StreamingHandler:
|
||||
a2a_task=a2a_task,
|
||||
new_messages=new_messages,
|
||||
agent_card=agent_card,
|
||||
turn_number=params.turn_number,
|
||||
is_multiturn=params.is_multiturn,
|
||||
agent_role=params.agent_role,
|
||||
turn_number=turn_number,
|
||||
is_multiturn=is_multiturn,
|
||||
agent_role=agent_role,
|
||||
result_parts=result_parts,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
is_final=is_final_update,
|
||||
)
|
||||
if final_result:
|
||||
break
|
||||
|
||||
except A2AClientHTTPError as e:
|
||||
if current_task_id:
|
||||
logger.info(
|
||||
"Stream interrupted with HTTP error, attempting recovery",
|
||||
extra={
|
||||
"task_id": current_task_id,
|
||||
"error": str(e),
|
||||
"status_code": e.status_code,
|
||||
},
|
||||
)
|
||||
recovery_kwargs = {k: v for k, v in kwargs.items() if k != "task_id"}
|
||||
recovered_result = (
|
||||
await StreamingHandler._try_recover_from_interruption(
|
||||
client=client,
|
||||
task_id=current_task_id,
|
||||
new_messages=new_messages,
|
||||
agent_card=agent_card,
|
||||
result_parts=result_parts,
|
||||
**recovery_kwargs,
|
||||
)
|
||||
)
|
||||
if recovered_result:
|
||||
logger.info(
|
||||
"Successfully recovered task after HTTP error",
|
||||
extra={
|
||||
"task_id": current_task_id,
|
||||
"status": str(recovered_result.get("status")),
|
||||
},
|
||||
)
|
||||
return recovered_result
|
||||
|
||||
logger.warning(
|
||||
"Failed to recover from HTTP error, returning failure",
|
||||
extra={
|
||||
"task_id": current_task_id,
|
||||
"status_code": e.status_code,
|
||||
"original_error": str(e),
|
||||
},
|
||||
)
|
||||
|
||||
error_msg = f"HTTP Error {e.status_code}: {e!s}"
|
||||
error_type = "http_error"
|
||||
status_code = e.status_code
|
||||
|
||||
error_message = Message(
|
||||
role=Role.agent,
|
||||
message_id=str(uuid.uuid4()),
|
||||
parts=[Part(root=TextPart(text=error_msg))],
|
||||
context_id=params.context_id,
|
||||
context_id=context_id,
|
||||
task_id=task_id,
|
||||
)
|
||||
new_messages.append(error_message)
|
||||
@@ -435,118 +210,32 @@ class StreamingHandler:
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AConnectionErrorEvent(
|
||||
endpoint=params.endpoint,
|
||||
endpoint=endpoint or "",
|
||||
error=str(e),
|
||||
error_type=error_type,
|
||||
status_code=status_code,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
error_type="http_error",
|
||||
status_code=e.status_code,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
operation="streaming",
|
||||
context_id=params.context_id,
|
||||
context_id=context_id,
|
||||
task_id=task_id,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AResponseReceivedEvent(
|
||||
response=error_msg,
|
||||
turn_number=params.turn_number,
|
||||
context_id=params.context_id,
|
||||
is_multiturn=params.is_multiturn,
|
||||
turn_number=turn_number,
|
||||
context_id=context_id,
|
||||
is_multiturn=is_multiturn,
|
||||
status="failed",
|
||||
final=True,
|
||||
agent_role=params.agent_role,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
),
|
||||
)
|
||||
return TaskStateResult(
|
||||
status=TaskState.failed,
|
||||
error=error_msg,
|
||||
history=new_messages,
|
||||
)
|
||||
|
||||
except (asyncio.TimeoutError, asyncio.CancelledError, ConnectionError) as e:
|
||||
error_type = type(e).__name__.lower()
|
||||
if current_task_id:
|
||||
logger.info(
|
||||
f"Stream interrupted with {error_type}, attempting recovery",
|
||||
extra={"task_id": current_task_id, "error": str(e)},
|
||||
)
|
||||
recovery_kwargs = {k: v for k, v in kwargs.items() if k != "task_id"}
|
||||
recovered_result = (
|
||||
await StreamingHandler._try_recover_from_interruption(
|
||||
client=client,
|
||||
task_id=current_task_id,
|
||||
new_messages=new_messages,
|
||||
agent_card=agent_card,
|
||||
result_parts=result_parts,
|
||||
**recovery_kwargs,
|
||||
)
|
||||
)
|
||||
if recovered_result:
|
||||
logger.info(
|
||||
f"Successfully recovered task after {error_type}",
|
||||
extra={
|
||||
"task_id": current_task_id,
|
||||
"status": str(recovered_result.get("status")),
|
||||
},
|
||||
)
|
||||
return recovered_result
|
||||
|
||||
logger.warning(
|
||||
f"Failed to recover from {error_type}, returning failure",
|
||||
extra={
|
||||
"task_id": current_task_id,
|
||||
"error_type": error_type,
|
||||
"original_error": str(e),
|
||||
},
|
||||
)
|
||||
|
||||
error_msg = f"Connection error during streaming: {e!s}"
|
||||
status_code = None
|
||||
|
||||
error_message = Message(
|
||||
role=Role.agent,
|
||||
message_id=str(uuid.uuid4()),
|
||||
parts=[Part(root=TextPart(text=error_msg))],
|
||||
context_id=params.context_id,
|
||||
task_id=task_id,
|
||||
)
|
||||
new_messages.append(error_message)
|
||||
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AConnectionErrorEvent(
|
||||
endpoint=params.endpoint,
|
||||
error=str(e),
|
||||
error_type=error_type,
|
||||
status_code=status_code,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
operation="streaming",
|
||||
context_id=params.context_id,
|
||||
task_id=task_id,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
),
|
||||
)
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AResponseReceivedEvent(
|
||||
response=error_msg,
|
||||
turn_number=params.turn_number,
|
||||
context_id=params.context_id,
|
||||
is_multiturn=params.is_multiturn,
|
||||
status="failed",
|
||||
final=True,
|
||||
agent_role=params.agent_role,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
agent_role=agent_role,
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
return TaskStateResult(
|
||||
@@ -556,23 +245,13 @@ class StreamingHandler:
|
||||
)
|
||||
|
||||
except Exception as e:
|
||||
logger.exception(
|
||||
"Unexpected error during streaming",
|
||||
extra={
|
||||
"task_id": current_task_id,
|
||||
"error_type": type(e).__name__,
|
||||
"endpoint": params.endpoint,
|
||||
},
|
||||
)
|
||||
error_msg = f"Unexpected error during streaming: {type(e).__name__}: {e!s}"
|
||||
error_type = "unexpected_error"
|
||||
status_code = None
|
||||
error_msg = f"Unexpected error during streaming: {e!s}"
|
||||
|
||||
error_message = Message(
|
||||
role=Role.agent,
|
||||
message_id=str(uuid.uuid4()),
|
||||
parts=[Part(root=TextPart(text=error_msg))],
|
||||
context_id=params.context_id,
|
||||
context_id=context_id,
|
||||
task_id=task_id,
|
||||
)
|
||||
new_messages.append(error_message)
|
||||
@@ -580,32 +259,31 @@ class StreamingHandler:
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AConnectionErrorEvent(
|
||||
endpoint=params.endpoint,
|
||||
endpoint=endpoint or "",
|
||||
error=str(e),
|
||||
error_type=error_type,
|
||||
status_code=status_code,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
error_type="unexpected_error",
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
operation="streaming",
|
||||
context_id=params.context_id,
|
||||
context_id=context_id,
|
||||
task_id=task_id,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AResponseReceivedEvent(
|
||||
response=error_msg,
|
||||
turn_number=params.turn_number,
|
||||
context_id=params.context_id,
|
||||
is_multiturn=params.is_multiturn,
|
||||
turn_number=turn_number,
|
||||
context_id=context_id,
|
||||
is_multiturn=is_multiturn,
|
||||
status="failed",
|
||||
final=True,
|
||||
agent_role=params.agent_role,
|
||||
endpoint=params.endpoint,
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
agent_role=agent_role,
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
return TaskStateResult(
|
||||
@@ -623,15 +301,15 @@ class StreamingHandler:
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2AConnectionErrorEvent(
|
||||
endpoint=params.endpoint,
|
||||
endpoint=endpoint or "",
|
||||
error=str(close_error),
|
||||
error_type="stream_close_error",
|
||||
a2a_agent_name=params.a2a_agent_name,
|
||||
a2a_agent_name=a2a_agent_name,
|
||||
operation="stream_close",
|
||||
context_id=params.context_id,
|
||||
context_id=context_id,
|
||||
task_id=task_id,
|
||||
from_task=params.from_task,
|
||||
from_agent=params.from_agent,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
),
|
||||
)
|
||||
|
||||
|
||||
@@ -1,28 +0,0 @@
|
||||
"""Common parameter extraction for streaming handlers."""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from a2a.types import TaskStatusUpdateEvent
|
||||
|
||||
|
||||
def process_status_update(
|
||||
update: TaskStatusUpdateEvent,
|
||||
result_parts: list[str],
|
||||
) -> bool:
|
||||
"""Process a status update event and extract text parts.
|
||||
|
||||
Args:
|
||||
update: The status update event.
|
||||
result_parts: List to append text parts to (modified in place).
|
||||
|
||||
Returns:
|
||||
True if this is a final update, False otherwise.
|
||||
"""
|
||||
is_final = update.final
|
||||
if update.status and update.status.message and update.status.message.parts:
|
||||
result_parts.extend(
|
||||
part.root.text
|
||||
for part in update.status.message.parts
|
||||
if part.root.kind == "text" and part.root.text
|
||||
)
|
||||
return is_final
|
||||
@@ -5,7 +5,6 @@ from __future__ import annotations
|
||||
import asyncio
|
||||
from collections.abc import MutableMapping
|
||||
from functools import lru_cache
|
||||
import ssl
|
||||
import time
|
||||
from types import MethodType
|
||||
from typing import TYPE_CHECKING
|
||||
@@ -16,7 +15,7 @@ from aiocache import cached # type: ignore[import-untyped]
|
||||
from aiocache.serializers import PickleSerializer # type: ignore[import-untyped]
|
||||
import httpx
|
||||
|
||||
from crewai.a2a.auth.client_schemes import APIKeyAuth, HTTPDigestAuth
|
||||
from crewai.a2a.auth.schemas import APIKeyAuth, HTTPDigestAuth
|
||||
from crewai.a2a.auth.utils import (
|
||||
_auth_store,
|
||||
configure_auth_client,
|
||||
@@ -33,51 +32,11 @@ from crewai.events.types.a2a_events import (
|
||||
|
||||
|
||||
if TYPE_CHECKING:
|
||||
from crewai.a2a.auth.client_schemes import ClientAuthScheme
|
||||
from crewai.a2a.auth.schemas import AuthScheme
|
||||
from crewai.agent import Agent
|
||||
from crewai.task import Task
|
||||
|
||||
|
||||
def _get_tls_verify(auth: ClientAuthScheme | None) -> ssl.SSLContext | bool | str:
|
||||
"""Get TLS verify parameter from auth scheme.
|
||||
|
||||
Args:
|
||||
auth: Optional authentication scheme with TLS config.
|
||||
|
||||
Returns:
|
||||
SSL context, CA cert path, True for default verification,
|
||||
or False if verification disabled.
|
||||
"""
|
||||
if auth and auth.tls:
|
||||
return auth.tls.get_httpx_ssl_context()
|
||||
return True
|
||||
|
||||
|
||||
async def _prepare_auth_headers(
|
||||
auth: ClientAuthScheme | None,
|
||||
timeout: int,
|
||||
) -> tuple[MutableMapping[str, str], ssl.SSLContext | bool | str]:
|
||||
"""Prepare authentication headers and TLS verification settings.
|
||||
|
||||
Args:
|
||||
auth: Optional authentication scheme.
|
||||
timeout: Request timeout in seconds.
|
||||
|
||||
Returns:
|
||||
Tuple of (headers dict, TLS verify setting).
|
||||
"""
|
||||
headers: MutableMapping[str, str] = {}
|
||||
verify = _get_tls_verify(auth)
|
||||
if auth:
|
||||
async with httpx.AsyncClient(
|
||||
timeout=timeout, verify=verify
|
||||
) as temp_auth_client:
|
||||
if isinstance(auth, (HTTPDigestAuth, APIKeyAuth)):
|
||||
configure_auth_client(auth, temp_auth_client)
|
||||
headers = await auth.apply_auth(temp_auth_client, {})
|
||||
return headers, verify
|
||||
|
||||
|
||||
def _get_server_config(agent: Agent) -> A2AServerConfig | None:
|
||||
"""Get A2AServerConfig from an agent's a2a configuration.
|
||||
|
||||
@@ -100,7 +59,7 @@ def _get_server_config(agent: Agent) -> A2AServerConfig | None:
|
||||
|
||||
def fetch_agent_card(
|
||||
endpoint: str,
|
||||
auth: ClientAuthScheme | None = None,
|
||||
auth: AuthScheme | None = None,
|
||||
timeout: int = 30,
|
||||
use_cache: bool = True,
|
||||
cache_ttl: int = 300,
|
||||
@@ -109,7 +68,7 @@ def fetch_agent_card(
|
||||
|
||||
Args:
|
||||
endpoint: A2A agent endpoint URL (AgentCard URL).
|
||||
auth: Optional ClientAuthScheme for authentication.
|
||||
auth: Optional AuthScheme for authentication.
|
||||
timeout: Request timeout in seconds.
|
||||
use_cache: Whether to use caching (default True).
|
||||
cache_ttl: Cache TTL in seconds (default 300 = 5 minutes).
|
||||
@@ -131,10 +90,10 @@ def fetch_agent_card(
|
||||
"_authorization_callback",
|
||||
}
|
||||
)
|
||||
auth_hash = _auth_store.compute_key(type(auth).__name__, auth_data)
|
||||
auth_hash = hash((type(auth).__name__, auth_data))
|
||||
else:
|
||||
auth_hash = _auth_store.compute_key("none", "")
|
||||
_auth_store.set(auth_hash, auth)
|
||||
auth_hash = 0
|
||||
_auth_store[auth_hash] = auth
|
||||
ttl_hash = int(time.time() // cache_ttl)
|
||||
return _fetch_agent_card_cached(endpoint, auth_hash, timeout, ttl_hash)
|
||||
|
||||
@@ -150,7 +109,7 @@ def fetch_agent_card(
|
||||
|
||||
async def afetch_agent_card(
|
||||
endpoint: str,
|
||||
auth: ClientAuthScheme | None = None,
|
||||
auth: AuthScheme | None = None,
|
||||
timeout: int = 30,
|
||||
use_cache: bool = True,
|
||||
) -> AgentCard:
|
||||
@@ -160,7 +119,7 @@ async def afetch_agent_card(
|
||||
|
||||
Args:
|
||||
endpoint: A2A agent endpoint URL (AgentCard URL).
|
||||
auth: Optional ClientAuthScheme for authentication.
|
||||
auth: Optional AuthScheme for authentication.
|
||||
timeout: Request timeout in seconds.
|
||||
use_cache: Whether to use caching (default True).
|
||||
|
||||
@@ -181,10 +140,10 @@ async def afetch_agent_card(
|
||||
"_authorization_callback",
|
||||
}
|
||||
)
|
||||
auth_hash = _auth_store.compute_key(type(auth).__name__, auth_data)
|
||||
auth_hash = hash((type(auth).__name__, auth_data))
|
||||
else:
|
||||
auth_hash = _auth_store.compute_key("none", "")
|
||||
_auth_store.set(auth_hash, auth)
|
||||
auth_hash = 0
|
||||
_auth_store[auth_hash] = auth
|
||||
agent_card: AgentCard = await _afetch_agent_card_cached(
|
||||
endpoint, auth_hash, timeout
|
||||
)
|
||||
@@ -196,7 +155,7 @@ async def afetch_agent_card(
|
||||
@lru_cache()
|
||||
def _fetch_agent_card_cached(
|
||||
endpoint: str,
|
||||
auth_hash: str,
|
||||
auth_hash: int,
|
||||
timeout: int,
|
||||
_ttl_hash: int,
|
||||
) -> AgentCard:
|
||||
@@ -216,7 +175,7 @@ def _fetch_agent_card_cached(
|
||||
@cached(ttl=300, serializer=PickleSerializer()) # type: ignore[untyped-decorator]
|
||||
async def _afetch_agent_card_cached(
|
||||
endpoint: str,
|
||||
auth_hash: str,
|
||||
auth_hash: int,
|
||||
timeout: int,
|
||||
) -> AgentCard:
|
||||
"""Cached async implementation of AgentCard fetching."""
|
||||
@@ -226,7 +185,7 @@ async def _afetch_agent_card_cached(
|
||||
|
||||
async def _afetch_agent_card_impl(
|
||||
endpoint: str,
|
||||
auth: ClientAuthScheme | None,
|
||||
auth: AuthScheme | None,
|
||||
timeout: int,
|
||||
) -> AgentCard:
|
||||
"""Internal async implementation of AgentCard fetching."""
|
||||
@@ -238,17 +197,16 @@ async def _afetch_agent_card_impl(
|
||||
else:
|
||||
url_parts = endpoint.split("/", 3)
|
||||
base_url = f"{url_parts[0]}//{url_parts[2]}"
|
||||
agent_card_path = (
|
||||
f"/{url_parts[3]}"
|
||||
if len(url_parts) > 3 and url_parts[3]
|
||||
else "/.well-known/agent-card.json"
|
||||
)
|
||||
agent_card_path = f"/{url_parts[3]}" if len(url_parts) > 3 else "/"
|
||||
|
||||
headers, verify = await _prepare_auth_headers(auth, timeout)
|
||||
headers: MutableMapping[str, str] = {}
|
||||
if auth:
|
||||
async with httpx.AsyncClient(timeout=timeout) as temp_auth_client:
|
||||
if isinstance(auth, (HTTPDigestAuth, APIKeyAuth)):
|
||||
configure_auth_client(auth, temp_auth_client)
|
||||
headers = await auth.apply_auth(temp_auth_client, {})
|
||||
|
||||
async with httpx.AsyncClient(
|
||||
timeout=timeout, headers=headers, verify=verify
|
||||
) as temp_client:
|
||||
async with httpx.AsyncClient(timeout=timeout, headers=headers) as temp_client:
|
||||
if auth and isinstance(auth, (HTTPDigestAuth, APIKeyAuth)):
|
||||
configure_auth_client(auth, temp_client)
|
||||
|
||||
@@ -476,7 +434,6 @@ def _agent_to_agent_card(agent: Agent, url: str) -> AgentCard:
|
||||
"""Generate an A2A AgentCard from an Agent instance.
|
||||
|
||||
Uses A2AServerConfig values when available, falling back to agent properties.
|
||||
If signing_config is provided, the card will be signed with JWS.
|
||||
|
||||
Args:
|
||||
agent: The Agent instance to generate a card for.
|
||||
@@ -485,8 +442,6 @@ def _agent_to_agent_card(agent: Agent, url: str) -> AgentCard:
|
||||
Returns:
|
||||
AgentCard describing the agent's capabilities.
|
||||
"""
|
||||
from crewai.a2a.utils.agent_card_signing import sign_agent_card
|
||||
|
||||
server_config = _get_server_config(agent) or A2AServerConfig()
|
||||
|
||||
name = server_config.name or agent.role
|
||||
@@ -517,31 +472,15 @@ def _agent_to_agent_card(agent: Agent, url: str) -> AgentCard:
|
||||
)
|
||||
)
|
||||
|
||||
capabilities = server_config.capabilities
|
||||
if server_config.server_extensions:
|
||||
from crewai.a2a.extensions.server import ServerExtensionRegistry
|
||||
|
||||
registry = ServerExtensionRegistry(server_config.server_extensions)
|
||||
ext_list = registry.get_agent_extensions()
|
||||
|
||||
existing_exts = list(capabilities.extensions) if capabilities.extensions else []
|
||||
existing_uris = {e.uri for e in existing_exts}
|
||||
for ext in ext_list:
|
||||
if ext.uri not in existing_uris:
|
||||
existing_exts.append(ext)
|
||||
|
||||
capabilities = capabilities.model_copy(update={"extensions": existing_exts})
|
||||
|
||||
card = AgentCard(
|
||||
return AgentCard(
|
||||
name=name,
|
||||
description=description,
|
||||
url=server_config.url or url,
|
||||
version=server_config.version,
|
||||
capabilities=capabilities,
|
||||
capabilities=server_config.capabilities,
|
||||
default_input_modes=server_config.default_input_modes,
|
||||
default_output_modes=server_config.default_output_modes,
|
||||
skills=skills,
|
||||
preferred_transport=server_config.transport.preferred,
|
||||
protocol_version=server_config.protocol_version,
|
||||
provider=server_config.provider,
|
||||
documentation_url=server_config.documentation_url,
|
||||
@@ -550,21 +489,9 @@ def _agent_to_agent_card(agent: Agent, url: str) -> AgentCard:
|
||||
security=server_config.security,
|
||||
security_schemes=server_config.security_schemes,
|
||||
supports_authenticated_extended_card=server_config.supports_authenticated_extended_card,
|
||||
signatures=server_config.signatures,
|
||||
)
|
||||
|
||||
if server_config.signing_config:
|
||||
signature = sign_agent_card(
|
||||
card,
|
||||
private_key=server_config.signing_config.get_private_key(),
|
||||
key_id=server_config.signing_config.key_id,
|
||||
algorithm=server_config.signing_config.algorithm,
|
||||
)
|
||||
card = card.model_copy(update={"signatures": [signature]})
|
||||
elif server_config.signatures:
|
||||
card = card.model_copy(update={"signatures": server_config.signatures})
|
||||
|
||||
return card
|
||||
|
||||
|
||||
def inject_a2a_server_methods(agent: Agent) -> None:
|
||||
"""Inject A2A server methods onto an Agent instance.
|
||||
|
||||
@@ -1,236 +0,0 @@
|
||||
"""AgentCard JWS signing utilities.
|
||||
|
||||
This module provides functions for signing and verifying AgentCards using
|
||||
JSON Web Signatures (JWS) as per RFC 7515. Signed agent cards allow clients
|
||||
to verify the authenticity and integrity of agent card information.
|
||||
|
||||
Example:
|
||||
>>> from crewai.a2a.utils.agent_card_signing import sign_agent_card
|
||||
>>> signature = sign_agent_card(agent_card, private_key_pem, key_id="key-1")
|
||||
>>> card_with_sig = card.model_copy(update={"signatures": [signature]})
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
import base64
|
||||
import json
|
||||
import logging
|
||||
from typing import Any, Literal
|
||||
|
||||
from a2a.types import AgentCard, AgentCardSignature
|
||||
import jwt
|
||||
from pydantic import SecretStr
|
||||
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
|
||||
SigningAlgorithm = Literal[
|
||||
"RS256", "RS384", "RS512", "ES256", "ES384", "ES512", "PS256", "PS384", "PS512"
|
||||
]
|
||||
|
||||
|
||||
def _normalize_private_key(private_key: str | bytes | SecretStr) -> bytes:
|
||||
"""Normalize private key to bytes format.
|
||||
|
||||
Args:
|
||||
private_key: PEM-encoded private key as string, bytes, or SecretStr.
|
||||
|
||||
Returns:
|
||||
Private key as bytes.
|
||||
"""
|
||||
if isinstance(private_key, SecretStr):
|
||||
private_key = private_key.get_secret_value()
|
||||
if isinstance(private_key, str):
|
||||
private_key = private_key.encode()
|
||||
return private_key
|
||||
|
||||
|
||||
def _serialize_agent_card(agent_card: AgentCard) -> str:
|
||||
"""Serialize AgentCard to canonical JSON for signing.
|
||||
|
||||
Excludes the signatures field to avoid circular reference during signing.
|
||||
Uses sorted keys and compact separators for deterministic output.
|
||||
|
||||
Args:
|
||||
agent_card: The AgentCard to serialize.
|
||||
|
||||
Returns:
|
||||
Canonical JSON string representation.
|
||||
"""
|
||||
card_dict = agent_card.model_dump(exclude={"signatures"}, exclude_none=True)
|
||||
return json.dumps(card_dict, sort_keys=True, separators=(",", ":"))
|
||||
|
||||
|
||||
def _base64url_encode(data: bytes | str) -> str:
|
||||
"""Encode data to URL-safe base64 without padding.
|
||||
|
||||
Args:
|
||||
data: Data to encode.
|
||||
|
||||
Returns:
|
||||
URL-safe base64 encoded string without padding.
|
||||
"""
|
||||
if isinstance(data, str):
|
||||
data = data.encode()
|
||||
return base64.urlsafe_b64encode(data).rstrip(b"=").decode("ascii")
|
||||
|
||||
|
||||
def sign_agent_card(
|
||||
agent_card: AgentCard,
|
||||
private_key: str | bytes | SecretStr,
|
||||
key_id: str | None = None,
|
||||
algorithm: SigningAlgorithm = "RS256",
|
||||
) -> AgentCardSignature:
|
||||
"""Sign an AgentCard using JWS (RFC 7515).
|
||||
|
||||
Creates a detached JWS signature for the AgentCard. The signature covers
|
||||
all fields except the signatures field itself.
|
||||
|
||||
Args:
|
||||
agent_card: The AgentCard to sign.
|
||||
private_key: PEM-encoded private key (RSA, EC, or RSA-PSS).
|
||||
key_id: Optional key identifier for the JWS header (kid claim).
|
||||
algorithm: Signing algorithm (RS256, ES256, PS256, etc.).
|
||||
|
||||
Returns:
|
||||
AgentCardSignature with protected header and signature.
|
||||
|
||||
Raises:
|
||||
jwt.exceptions.InvalidKeyError: If the private key is invalid.
|
||||
ValueError: If the algorithm is not supported for the key type.
|
||||
|
||||
Example:
|
||||
>>> signature = sign_agent_card(
|
||||
... agent_card,
|
||||
... private_key_pem="-----BEGIN PRIVATE KEY-----...",
|
||||
... key_id="my-key-id",
|
||||
... )
|
||||
"""
|
||||
key_bytes = _normalize_private_key(private_key)
|
||||
payload = _serialize_agent_card(agent_card)
|
||||
|
||||
protected_header: dict[str, Any] = {"typ": "JWS"}
|
||||
if key_id:
|
||||
protected_header["kid"] = key_id
|
||||
|
||||
jws_token = jwt.api_jws.encode(
|
||||
payload.encode(),
|
||||
key_bytes,
|
||||
algorithm=algorithm,
|
||||
headers=protected_header,
|
||||
)
|
||||
|
||||
parts = jws_token.split(".")
|
||||
protected_b64 = parts[0]
|
||||
signature_b64 = parts[2]
|
||||
|
||||
header: dict[str, Any] | None = None
|
||||
if key_id:
|
||||
header = {"kid": key_id}
|
||||
|
||||
return AgentCardSignature(
|
||||
protected=protected_b64,
|
||||
signature=signature_b64,
|
||||
header=header,
|
||||
)
|
||||
|
||||
|
||||
def verify_agent_card_signature(
|
||||
agent_card: AgentCard,
|
||||
signature: AgentCardSignature,
|
||||
public_key: str | bytes,
|
||||
algorithms: list[str] | None = None,
|
||||
) -> bool:
|
||||
"""Verify an AgentCard JWS signature.
|
||||
|
||||
Validates that the signature was created with the corresponding private key
|
||||
and that the AgentCard content has not been modified.
|
||||
|
||||
Args:
|
||||
agent_card: The AgentCard to verify.
|
||||
signature: The AgentCardSignature to validate.
|
||||
public_key: PEM-encoded public key (RSA, EC, or RSA-PSS).
|
||||
algorithms: List of allowed algorithms. Defaults to common asymmetric algorithms.
|
||||
|
||||
Returns:
|
||||
True if signature is valid, False otherwise.
|
||||
|
||||
Example:
|
||||
>>> is_valid = verify_agent_card_signature(
|
||||
... agent_card, signature, public_key_pem="-----BEGIN PUBLIC KEY-----..."
|
||||
... )
|
||||
"""
|
||||
if algorithms is None:
|
||||
algorithms = [
|
||||
"RS256",
|
||||
"RS384",
|
||||
"RS512",
|
||||
"ES256",
|
||||
"ES384",
|
||||
"ES512",
|
||||
"PS256",
|
||||
"PS384",
|
||||
"PS512",
|
||||
]
|
||||
|
||||
if isinstance(public_key, str):
|
||||
public_key = public_key.encode()
|
||||
|
||||
payload = _serialize_agent_card(agent_card)
|
||||
payload_b64 = _base64url_encode(payload)
|
||||
jws_token = f"{signature.protected}.{payload_b64}.{signature.signature}"
|
||||
|
||||
try:
|
||||
jwt.api_jws.decode(
|
||||
jws_token,
|
||||
public_key,
|
||||
algorithms=algorithms,
|
||||
)
|
||||
return True
|
||||
except jwt.InvalidSignatureError:
|
||||
logger.debug(
|
||||
"AgentCard signature verification failed",
|
||||
extra={"reason": "invalid_signature"},
|
||||
)
|
||||
return False
|
||||
except jwt.DecodeError as e:
|
||||
logger.debug(
|
||||
"AgentCard signature verification failed",
|
||||
extra={"reason": "decode_error", "error": str(e)},
|
||||
)
|
||||
return False
|
||||
except jwt.InvalidAlgorithmError as e:
|
||||
logger.debug(
|
||||
"AgentCard signature verification failed",
|
||||
extra={"reason": "algorithm_error", "error": str(e)},
|
||||
)
|
||||
return False
|
||||
|
||||
|
||||
def get_key_id_from_signature(signature: AgentCardSignature) -> str | None:
|
||||
"""Extract the key ID (kid) from an AgentCardSignature.
|
||||
|
||||
Checks both the unprotected header and the protected header for the kid claim.
|
||||
|
||||
Args:
|
||||
signature: The AgentCardSignature to extract from.
|
||||
|
||||
Returns:
|
||||
The key ID if present, None otherwise.
|
||||
"""
|
||||
if signature.header and "kid" in signature.header:
|
||||
kid: str = signature.header["kid"]
|
||||
return kid
|
||||
|
||||
try:
|
||||
protected = signature.protected
|
||||
padding_needed = 4 - (len(protected) % 4)
|
||||
if padding_needed != 4:
|
||||
protected += "=" * padding_needed
|
||||
|
||||
protected_json = base64.urlsafe_b64decode(protected).decode()
|
||||
protected_header: dict[str, Any] = json.loads(protected_json)
|
||||
return protected_header.get("kid")
|
||||
except (ValueError, json.JSONDecodeError):
|
||||
return None
|
||||
@@ -1,339 +0,0 @@
|
||||
"""Content type negotiation for A2A protocol.
|
||||
|
||||
This module handles negotiation of input/output MIME types between A2A clients
|
||||
and servers based on AgentCard capabilities.
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from dataclasses import dataclass
|
||||
from typing import TYPE_CHECKING, Annotated, Final, Literal, cast
|
||||
|
||||
from a2a.types import Part
|
||||
|
||||
from crewai.events.event_bus import crewai_event_bus
|
||||
from crewai.events.types.a2a_events import A2AContentTypeNegotiatedEvent
|
||||
|
||||
|
||||
if TYPE_CHECKING:
|
||||
from a2a.types import AgentCard, AgentSkill
|
||||
|
||||
|
||||
TEXT_PLAIN: Literal["text/plain"] = "text/plain"
|
||||
APPLICATION_JSON: Literal["application/json"] = "application/json"
|
||||
IMAGE_PNG: Literal["image/png"] = "image/png"
|
||||
IMAGE_JPEG: Literal["image/jpeg"] = "image/jpeg"
|
||||
IMAGE_WILDCARD: Literal["image/*"] = "image/*"
|
||||
APPLICATION_PDF: Literal["application/pdf"] = "application/pdf"
|
||||
APPLICATION_OCTET_STREAM: Literal["application/octet-stream"] = (
|
||||
"application/octet-stream"
|
||||
)
|
||||
|
||||
DEFAULT_CLIENT_INPUT_MODES: Final[list[Literal["text/plain", "application/json"]]] = [
|
||||
TEXT_PLAIN,
|
||||
APPLICATION_JSON,
|
||||
]
|
||||
DEFAULT_CLIENT_OUTPUT_MODES: Final[list[Literal["text/plain", "application/json"]]] = [
|
||||
TEXT_PLAIN,
|
||||
APPLICATION_JSON,
|
||||
]
|
||||
|
||||
|
||||
@dataclass
|
||||
class NegotiatedContentTypes:
|
||||
"""Result of content type negotiation."""
|
||||
|
||||
input_modes: Annotated[list[str], "Negotiated input MIME types the client can send"]
|
||||
output_modes: Annotated[
|
||||
list[str], "Negotiated output MIME types the server will produce"
|
||||
]
|
||||
effective_input_modes: Annotated[list[str], "Server's effective input modes"]
|
||||
effective_output_modes: Annotated[list[str], "Server's effective output modes"]
|
||||
skill_name: Annotated[
|
||||
str | None, "Skill name if negotiation was skill-specific"
|
||||
] = None
|
||||
|
||||
|
||||
class ContentTypeNegotiationError(Exception):
|
||||
"""Raised when no compatible content types can be negotiated."""
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
client_input_modes: list[str],
|
||||
client_output_modes: list[str],
|
||||
server_input_modes: list[str],
|
||||
server_output_modes: list[str],
|
||||
direction: str = "both",
|
||||
message: str | None = None,
|
||||
) -> None:
|
||||
self.client_input_modes = client_input_modes
|
||||
self.client_output_modes = client_output_modes
|
||||
self.server_input_modes = server_input_modes
|
||||
self.server_output_modes = server_output_modes
|
||||
self.direction = direction
|
||||
|
||||
if message is None:
|
||||
if direction == "input":
|
||||
message = (
|
||||
f"No compatible input content types. "
|
||||
f"Client supports: {client_input_modes}, "
|
||||
f"Server accepts: {server_input_modes}"
|
||||
)
|
||||
elif direction == "output":
|
||||
message = (
|
||||
f"No compatible output content types. "
|
||||
f"Client accepts: {client_output_modes}, "
|
||||
f"Server produces: {server_output_modes}"
|
||||
)
|
||||
else:
|
||||
message = (
|
||||
f"No compatible content types. "
|
||||
f"Input - Client: {client_input_modes}, Server: {server_input_modes}. "
|
||||
f"Output - Client: {client_output_modes}, Server: {server_output_modes}"
|
||||
)
|
||||
|
||||
super().__init__(message)
|
||||
|
||||
|
||||
def _normalize_mime_type(mime_type: str) -> str:
|
||||
"""Normalize MIME type for comparison (lowercase, strip whitespace)."""
|
||||
return mime_type.lower().strip()
|
||||
|
||||
|
||||
def _mime_types_compatible(client_type: str, server_type: str) -> bool:
|
||||
"""Check if two MIME types are compatible.
|
||||
|
||||
Handles wildcards like image/* matching image/png.
|
||||
"""
|
||||
client_normalized = _normalize_mime_type(client_type)
|
||||
server_normalized = _normalize_mime_type(server_type)
|
||||
|
||||
if client_normalized == server_normalized:
|
||||
return True
|
||||
|
||||
if "*" in client_normalized or "*" in server_normalized:
|
||||
client_parts = client_normalized.split("/")
|
||||
server_parts = server_normalized.split("/")
|
||||
|
||||
if len(client_parts) == 2 and len(server_parts) == 2:
|
||||
type_match = (
|
||||
client_parts[0] == server_parts[0]
|
||||
or client_parts[0] == "*"
|
||||
or server_parts[0] == "*"
|
||||
)
|
||||
subtype_match = (
|
||||
client_parts[1] == server_parts[1]
|
||||
or client_parts[1] == "*"
|
||||
or server_parts[1] == "*"
|
||||
)
|
||||
return type_match and subtype_match
|
||||
|
||||
return False
|
||||
|
||||
|
||||
def _find_compatible_modes(
|
||||
client_modes: list[str], server_modes: list[str]
|
||||
) -> list[str]:
|
||||
"""Find compatible MIME types between client and server.
|
||||
|
||||
Returns modes in client preference order.
|
||||
"""
|
||||
compatible = []
|
||||
for client_mode in client_modes:
|
||||
for server_mode in server_modes:
|
||||
if _mime_types_compatible(client_mode, server_mode):
|
||||
if "*" in client_mode and "*" not in server_mode:
|
||||
if server_mode not in compatible:
|
||||
compatible.append(server_mode)
|
||||
else:
|
||||
if client_mode not in compatible:
|
||||
compatible.append(client_mode)
|
||||
break
|
||||
return compatible
|
||||
|
||||
|
||||
def _get_effective_modes(
|
||||
agent_card: AgentCard,
|
||||
skill_name: str | None = None,
|
||||
) -> tuple[list[str], list[str], AgentSkill | None]:
|
||||
"""Get effective input/output modes from agent card.
|
||||
|
||||
If skill_name is provided and the skill has custom modes, those are used.
|
||||
Otherwise, falls back to agent card defaults.
|
||||
"""
|
||||
skill: AgentSkill | None = None
|
||||
|
||||
if skill_name and agent_card.skills:
|
||||
for s in agent_card.skills:
|
||||
if s.name == skill_name or s.id == skill_name:
|
||||
skill = s
|
||||
break
|
||||
|
||||
if skill:
|
||||
input_modes = (
|
||||
skill.input_modes if skill.input_modes else agent_card.default_input_modes
|
||||
)
|
||||
output_modes = (
|
||||
skill.output_modes
|
||||
if skill.output_modes
|
||||
else agent_card.default_output_modes
|
||||
)
|
||||
else:
|
||||
input_modes = agent_card.default_input_modes
|
||||
output_modes = agent_card.default_output_modes
|
||||
|
||||
return input_modes, output_modes, skill
|
||||
|
||||
|
||||
def negotiate_content_types(
|
||||
agent_card: AgentCard,
|
||||
client_input_modes: list[str] | None = None,
|
||||
client_output_modes: list[str] | None = None,
|
||||
skill_name: str | None = None,
|
||||
emit_event: bool = True,
|
||||
endpoint: str | None = None,
|
||||
a2a_agent_name: str | None = None,
|
||||
strict: bool = False,
|
||||
) -> NegotiatedContentTypes:
|
||||
"""Negotiate content types between client and server.
|
||||
|
||||
Args:
|
||||
agent_card: The remote agent's card with capability info.
|
||||
client_input_modes: MIME types the client can send. Defaults to text/plain and application/json.
|
||||
client_output_modes: MIME types the client can accept. Defaults to text/plain and application/json.
|
||||
skill_name: Optional skill to use for mode lookup.
|
||||
emit_event: Whether to emit a content type negotiation event.
|
||||
endpoint: Agent endpoint (for event metadata).
|
||||
a2a_agent_name: Agent name (for event metadata).
|
||||
strict: If True, raises error when no compatible types found.
|
||||
If False, returns empty lists for incompatible directions.
|
||||
|
||||
Returns:
|
||||
NegotiatedContentTypes with compatible input and output modes.
|
||||
|
||||
Raises:
|
||||
ContentTypeNegotiationError: If strict=True and no compatible types found.
|
||||
"""
|
||||
if client_input_modes is None:
|
||||
client_input_modes = cast(list[str], DEFAULT_CLIENT_INPUT_MODES.copy())
|
||||
if client_output_modes is None:
|
||||
client_output_modes = cast(list[str], DEFAULT_CLIENT_OUTPUT_MODES.copy())
|
||||
|
||||
server_input_modes, server_output_modes, skill = _get_effective_modes(
|
||||
agent_card, skill_name
|
||||
)
|
||||
|
||||
compatible_input = _find_compatible_modes(client_input_modes, server_input_modes)
|
||||
compatible_output = _find_compatible_modes(client_output_modes, server_output_modes)
|
||||
|
||||
if strict:
|
||||
if not compatible_input and not compatible_output:
|
||||
raise ContentTypeNegotiationError(
|
||||
client_input_modes=client_input_modes,
|
||||
client_output_modes=client_output_modes,
|
||||
server_input_modes=server_input_modes,
|
||||
server_output_modes=server_output_modes,
|
||||
)
|
||||
if not compatible_input:
|
||||
raise ContentTypeNegotiationError(
|
||||
client_input_modes=client_input_modes,
|
||||
client_output_modes=client_output_modes,
|
||||
server_input_modes=server_input_modes,
|
||||
server_output_modes=server_output_modes,
|
||||
direction="input",
|
||||
)
|
||||
if not compatible_output:
|
||||
raise ContentTypeNegotiationError(
|
||||
client_input_modes=client_input_modes,
|
||||
client_output_modes=client_output_modes,
|
||||
server_input_modes=server_input_modes,
|
||||
server_output_modes=server_output_modes,
|
||||
direction="output",
|
||||
)
|
||||
|
||||
result = NegotiatedContentTypes(
|
||||
input_modes=compatible_input,
|
||||
output_modes=compatible_output,
|
||||
effective_input_modes=server_input_modes,
|
||||
effective_output_modes=server_output_modes,
|
||||
skill_name=skill.name if skill else None,
|
||||
)
|
||||
|
||||
if emit_event:
|
||||
crewai_event_bus.emit(
|
||||
None,
|
||||
A2AContentTypeNegotiatedEvent(
|
||||
endpoint=endpoint or agent_card.url,
|
||||
a2a_agent_name=a2a_agent_name or agent_card.name,
|
||||
skill_name=skill_name,
|
||||
client_input_modes=client_input_modes,
|
||||
client_output_modes=client_output_modes,
|
||||
server_input_modes=server_input_modes,
|
||||
server_output_modes=server_output_modes,
|
||||
negotiated_input_modes=compatible_input,
|
||||
negotiated_output_modes=compatible_output,
|
||||
negotiation_success=bool(compatible_input and compatible_output),
|
||||
),
|
||||
)
|
||||
|
||||
return result
|
||||
|
||||
|
||||
def validate_content_type(
|
||||
content_type: str,
|
||||
allowed_modes: list[str],
|
||||
) -> bool:
|
||||
"""Validate that a content type is allowed by a list of modes.
|
||||
|
||||
Args:
|
||||
content_type: The MIME type to validate.
|
||||
allowed_modes: List of allowed MIME types (may include wildcards).
|
||||
|
||||
Returns:
|
||||
True if content_type is compatible with any allowed mode.
|
||||
"""
|
||||
for mode in allowed_modes:
|
||||
if _mime_types_compatible(content_type, mode):
|
||||
return True
|
||||
return False
|
||||
|
||||
|
||||
def get_part_content_type(part: Part) -> str:
|
||||
"""Extract MIME type from an A2A Part.
|
||||
|
||||
Args:
|
||||
part: A Part object containing TextPart, DataPart, or FilePart.
|
||||
|
||||
Returns:
|
||||
The MIME type string for this part.
|
||||
"""
|
||||
root = part.root
|
||||
if root.kind == "text":
|
||||
return TEXT_PLAIN
|
||||
if root.kind == "data":
|
||||
return APPLICATION_JSON
|
||||
if root.kind == "file":
|
||||
return root.file.mime_type or APPLICATION_OCTET_STREAM
|
||||
return APPLICATION_OCTET_STREAM
|
||||
|
||||
|
||||
def validate_message_parts(
|
||||
parts: list[Part],
|
||||
allowed_modes: list[str],
|
||||
) -> list[str]:
|
||||
"""Validate that all message parts have allowed content types.
|
||||
|
||||
Args:
|
||||
parts: List of Parts from the incoming message.
|
||||
allowed_modes: List of allowed MIME types (from default_input_modes).
|
||||
|
||||
Returns:
|
||||
List of invalid content types found (empty if all valid).
|
||||
"""
|
||||
invalid_types: list[str] = []
|
||||
for part in parts:
|
||||
content_type = get_part_content_type(part)
|
||||
if not validate_content_type(content_type, allowed_modes):
|
||||
if content_type not in invalid_types:
|
||||
invalid_types.append(content_type)
|
||||
return invalid_types
|
||||
@@ -3,18 +3,14 @@
|
||||
from __future__ import annotations
|
||||
|
||||
import asyncio
|
||||
import base64
|
||||
from collections.abc import AsyncIterator, Callable, MutableMapping
|
||||
from collections.abc import AsyncIterator, MutableMapping
|
||||
from contextlib import asynccontextmanager
|
||||
import logging
|
||||
from typing import TYPE_CHECKING, Any, Final, Literal
|
||||
from typing import TYPE_CHECKING, Any, Literal
|
||||
import uuid
|
||||
|
||||
from a2a.client import Client, ClientConfig, ClientFactory
|
||||
from a2a.types import (
|
||||
AgentCard,
|
||||
FilePart,
|
||||
FileWithBytes,
|
||||
Message,
|
||||
Part,
|
||||
PushNotificationConfig as A2APushNotificationConfig,
|
||||
@@ -24,24 +20,18 @@ from a2a.types import (
|
||||
import httpx
|
||||
from pydantic import BaseModel
|
||||
|
||||
from crewai.a2a.auth.client_schemes import APIKeyAuth, HTTPDigestAuth
|
||||
from crewai.a2a.auth.schemas import APIKeyAuth, HTTPDigestAuth
|
||||
from crewai.a2a.auth.utils import (
|
||||
_auth_store,
|
||||
configure_auth_client,
|
||||
validate_auth_against_agent_card,
|
||||
)
|
||||
from crewai.a2a.config import ClientTransportConfig, GRPCClientConfig
|
||||
from crewai.a2a.extensions.registry import (
|
||||
ExtensionsMiddleware,
|
||||
validate_required_extensions,
|
||||
)
|
||||
from crewai.a2a.task_helpers import TaskStateResult
|
||||
from crewai.a2a.types import (
|
||||
HANDLER_REGISTRY,
|
||||
HandlerType,
|
||||
PartsDict,
|
||||
PartsMetadataDict,
|
||||
TransportType,
|
||||
)
|
||||
from crewai.a2a.updates import (
|
||||
PollingConfig,
|
||||
@@ -49,20 +39,7 @@ from crewai.a2a.updates import (
|
||||
StreamingHandler,
|
||||
UpdateConfig,
|
||||
)
|
||||
from crewai.a2a.utils.agent_card import (
|
||||
_afetch_agent_card_cached,
|
||||
_get_tls_verify,
|
||||
_prepare_auth_headers,
|
||||
)
|
||||
from crewai.a2a.utils.content_type import (
|
||||
DEFAULT_CLIENT_OUTPUT_MODES,
|
||||
negotiate_content_types,
|
||||
)
|
||||
from crewai.a2a.utils.transport import (
|
||||
NegotiatedTransport,
|
||||
TransportNegotiationError,
|
||||
negotiate_transport,
|
||||
)
|
||||
from crewai.a2a.utils.agent_card import _afetch_agent_card_cached
|
||||
from crewai.events.event_bus import crewai_event_bus
|
||||
from crewai.events.types.a2a_events import (
|
||||
A2AConversationStartedEvent,
|
||||
@@ -72,48 +49,10 @@ from crewai.events.types.a2a_events import (
|
||||
)
|
||||
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
|
||||
if TYPE_CHECKING:
|
||||
from a2a.types import Message
|
||||
|
||||
from crewai.a2a.auth.client_schemes import ClientAuthScheme
|
||||
|
||||
|
||||
_DEFAULT_TRANSPORT: Final[TransportType] = "JSONRPC"
|
||||
|
||||
|
||||
def _create_file_parts(input_files: dict[str, Any] | None) -> list[Part]:
|
||||
"""Convert FileInput dictionary to FilePart objects.
|
||||
|
||||
Args:
|
||||
input_files: Dictionary mapping names to FileInput objects.
|
||||
|
||||
Returns:
|
||||
List of Part objects containing FilePart data.
|
||||
"""
|
||||
if not input_files:
|
||||
return []
|
||||
|
||||
try:
|
||||
import crewai_files # noqa: F401
|
||||
except ImportError:
|
||||
logger.debug("crewai_files not installed, skipping file parts")
|
||||
return []
|
||||
|
||||
parts: list[Part] = []
|
||||
for name, file_input in input_files.items():
|
||||
content_bytes = file_input.read()
|
||||
content_base64 = base64.b64encode(content_bytes).decode()
|
||||
file_with_bytes = FileWithBytes(
|
||||
bytes=content_base64,
|
||||
mimeType=file_input.content_type,
|
||||
name=file_input.filename or name,
|
||||
)
|
||||
parts.append(Part(root=FilePart(file=file_with_bytes)))
|
||||
|
||||
return parts
|
||||
from crewai.a2a.auth.schemas import AuthScheme
|
||||
|
||||
|
||||
def get_handler(config: UpdateConfig | None) -> HandlerType:
|
||||
@@ -132,7 +71,8 @@ def get_handler(config: UpdateConfig | None) -> HandlerType:
|
||||
|
||||
def execute_a2a_delegation(
|
||||
endpoint: str,
|
||||
auth: ClientAuthScheme | None,
|
||||
transport_protocol: Literal["JSONRPC", "GRPC", "HTTP+JSON"],
|
||||
auth: AuthScheme | None,
|
||||
timeout: int,
|
||||
task_description: str,
|
||||
context: str | None = None,
|
||||
@@ -151,24 +91,32 @@ def execute_a2a_delegation(
|
||||
from_task: Any | None = None,
|
||||
from_agent: Any | None = None,
|
||||
skill_id: str | None = None,
|
||||
client_extensions: list[str] | None = None,
|
||||
transport: ClientTransportConfig | None = None,
|
||||
accepted_output_modes: list[str] | None = None,
|
||||
input_files: dict[str, Any] | None = None,
|
||||
) -> TaskStateResult:
|
||||
"""Execute a task delegation to a remote A2A agent synchronously.
|
||||
|
||||
WARNING: This function blocks the entire thread by creating and running a new
|
||||
event loop. Prefer using 'await aexecute_a2a_delegation()' in async contexts
|
||||
for better performance and resource efficiency.
|
||||
|
||||
This is a synchronous wrapper around aexecute_a2a_delegation that creates a
|
||||
new event loop to run the async implementation. It is provided for compatibility
|
||||
with synchronous code paths only.
|
||||
This is the sync wrapper around aexecute_a2a_delegation. For async contexts,
|
||||
use aexecute_a2a_delegation directly.
|
||||
|
||||
Args:
|
||||
endpoint: A2A agent endpoint URL (AgentCard URL).
|
||||
auth: Optional ClientAuthScheme for authentication.
|
||||
endpoint: A2A agent endpoint URL (AgentCard URL)
|
||||
transport_protocol: Optional A2A transport protocol (grpc, jsonrpc, http+json)
|
||||
auth: Optional AuthScheme for authentication (Bearer, OAuth2, API Key, HTTP Basic/Digest)
|
||||
timeout: Request timeout in seconds
|
||||
task_description: The task to delegate
|
||||
context: Optional context information
|
||||
context_id: Context ID for correlating messages/tasks
|
||||
task_id: Specific task identifier
|
||||
reference_task_ids: List of related task IDs
|
||||
metadata: Additional metadata (external_id, request_id, etc.)
|
||||
extensions: Protocol extensions for custom fields
|
||||
conversation_history: Previous Message objects from conversation
|
||||
agent_id: Agent identifier for logging
|
||||
agent_role: Role of the CrewAI agent delegating the task
|
||||
agent_branch: Optional agent tree branch for logging
|
||||
response_model: Optional Pydantic model for structured outputs
|
||||
turn_number: Optional turn number for multi-turn conversations
|
||||
endpoint: A2A agent endpoint URL.
|
||||
auth: Optional AuthScheme for authentication.
|
||||
timeout: Request timeout in seconds.
|
||||
task_description: The task to delegate.
|
||||
context: Optional context information.
|
||||
@@ -187,27 +135,10 @@ def execute_a2a_delegation(
|
||||
from_task: Optional CrewAI Task object for event metadata.
|
||||
from_agent: Optional CrewAI Agent object for event metadata.
|
||||
skill_id: Optional skill ID to target a specific agent capability.
|
||||
client_extensions: A2A protocol extension URIs the client supports.
|
||||
transport: Transport configuration (preferred, supported transports, gRPC settings).
|
||||
accepted_output_modes: MIME types the client can accept in responses.
|
||||
input_files: Optional dictionary of files to send to remote agent.
|
||||
|
||||
Returns:
|
||||
TaskStateResult with status, result/error, history, and agent_card.
|
||||
|
||||
Raises:
|
||||
RuntimeError: If called from an async context with a running event loop.
|
||||
"""
|
||||
try:
|
||||
asyncio.get_running_loop()
|
||||
raise RuntimeError(
|
||||
"execute_a2a_delegation() cannot be called from an async context. "
|
||||
"Use 'await aexecute_a2a_delegation()' instead."
|
||||
)
|
||||
except RuntimeError as e:
|
||||
if "no running event loop" not in str(e).lower():
|
||||
raise
|
||||
|
||||
loop = asyncio.new_event_loop()
|
||||
asyncio.set_event_loop(loop)
|
||||
try:
|
||||
@@ -228,15 +159,12 @@ def execute_a2a_delegation(
|
||||
agent_role=agent_role,
|
||||
agent_branch=agent_branch,
|
||||
response_model=response_model,
|
||||
transport_protocol=transport_protocol,
|
||||
turn_number=turn_number,
|
||||
updates=updates,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
skill_id=skill_id,
|
||||
client_extensions=client_extensions,
|
||||
transport=transport,
|
||||
accepted_output_modes=accepted_output_modes,
|
||||
input_files=input_files,
|
||||
)
|
||||
)
|
||||
finally:
|
||||
@@ -248,7 +176,8 @@ def execute_a2a_delegation(
|
||||
|
||||
async def aexecute_a2a_delegation(
|
||||
endpoint: str,
|
||||
auth: ClientAuthScheme | None,
|
||||
transport_protocol: Literal["JSONRPC", "GRPC", "HTTP+JSON"],
|
||||
auth: AuthScheme | None,
|
||||
timeout: int,
|
||||
task_description: str,
|
||||
context: str | None = None,
|
||||
@@ -267,10 +196,6 @@ async def aexecute_a2a_delegation(
|
||||
from_task: Any | None = None,
|
||||
from_agent: Any | None = None,
|
||||
skill_id: str | None = None,
|
||||
client_extensions: list[str] | None = None,
|
||||
transport: ClientTransportConfig | None = None,
|
||||
accepted_output_modes: list[str] | None = None,
|
||||
input_files: dict[str, Any] | None = None,
|
||||
) -> TaskStateResult:
|
||||
"""Execute a task delegation to a remote A2A agent asynchronously.
|
||||
|
||||
@@ -278,8 +203,25 @@ async def aexecute_a2a_delegation(
|
||||
in an async context (e.g., with Crew.akickoff() or agent.aexecute_task()).
|
||||
|
||||
Args:
|
||||
endpoint: A2A agent endpoint URL
|
||||
transport_protocol: Optional A2A transport protocol (grpc, jsonrpc, http+json)
|
||||
auth: Optional AuthScheme for authentication
|
||||
timeout: Request timeout in seconds
|
||||
task_description: Task to delegate
|
||||
context: Optional context
|
||||
context_id: Context ID for correlation
|
||||
task_id: Specific task identifier
|
||||
reference_task_ids: Related task IDs
|
||||
metadata: Additional metadata
|
||||
extensions: Protocol extensions
|
||||
conversation_history: Previous Message objects
|
||||
turn_number: Current turn number
|
||||
agent_branch: Agent tree branch for logging
|
||||
agent_id: Agent identifier for logging
|
||||
agent_role: Agent role for logging
|
||||
response_model: Optional Pydantic model for structured outputs
|
||||
endpoint: A2A agent endpoint URL.
|
||||
auth: Optional ClientAuthScheme for authentication.
|
||||
auth: Optional AuthScheme for authentication.
|
||||
timeout: Request timeout in seconds.
|
||||
task_description: The task to delegate.
|
||||
context: Optional context information.
|
||||
@@ -298,10 +240,6 @@ async def aexecute_a2a_delegation(
|
||||
from_task: Optional CrewAI Task object for event metadata.
|
||||
from_agent: Optional CrewAI Agent object for event metadata.
|
||||
skill_id: Optional skill ID to target a specific agent capability.
|
||||
client_extensions: A2A protocol extension URIs the client supports.
|
||||
transport: Transport configuration (preferred, supported transports, gRPC settings).
|
||||
accepted_output_modes: MIME types the client can accept in responses.
|
||||
input_files: Optional dictionary of files to send to remote agent.
|
||||
|
||||
Returns:
|
||||
TaskStateResult with status, result/error, history, and agent_card.
|
||||
@@ -333,13 +271,10 @@ async def aexecute_a2a_delegation(
|
||||
agent_role=agent_role,
|
||||
response_model=response_model,
|
||||
updates=updates,
|
||||
transport_protocol=transport_protocol,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
skill_id=skill_id,
|
||||
client_extensions=client_extensions,
|
||||
transport=transport,
|
||||
accepted_output_modes=accepted_output_modes,
|
||||
input_files=input_files,
|
||||
)
|
||||
except Exception as e:
|
||||
crewai_event_bus.emit(
|
||||
@@ -359,7 +294,7 @@ async def aexecute_a2a_delegation(
|
||||
)
|
||||
raise
|
||||
|
||||
agent_card_data = result.get("agent_card")
|
||||
agent_card_data: dict[str, Any] = result.get("agent_card") or {}
|
||||
crewai_event_bus.emit(
|
||||
agent_branch,
|
||||
A2ADelegationCompletedEvent(
|
||||
@@ -371,7 +306,7 @@ async def aexecute_a2a_delegation(
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=result.get("a2a_agent_name"),
|
||||
agent_card=agent_card_data,
|
||||
provider=agent_card_data.get("provider") if agent_card_data else None,
|
||||
provider=agent_card_data.get("provider"),
|
||||
metadata=metadata,
|
||||
extensions=list(extensions.keys()) if extensions else None,
|
||||
from_task=from_task,
|
||||
@@ -384,7 +319,8 @@ async def aexecute_a2a_delegation(
|
||||
|
||||
async def _aexecute_a2a_delegation_impl(
|
||||
endpoint: str,
|
||||
auth: ClientAuthScheme | None,
|
||||
transport_protocol: Literal["JSONRPC", "GRPC", "HTTP+JSON"],
|
||||
auth: AuthScheme | None,
|
||||
timeout: int,
|
||||
task_description: str,
|
||||
context: str | None,
|
||||
@@ -404,14 +340,8 @@ async def _aexecute_a2a_delegation_impl(
|
||||
from_task: Any | None = None,
|
||||
from_agent: Any | None = None,
|
||||
skill_id: str | None = None,
|
||||
client_extensions: list[str] | None = None,
|
||||
transport: ClientTransportConfig | None = None,
|
||||
accepted_output_modes: list[str] | None = None,
|
||||
input_files: dict[str, Any] | None = None,
|
||||
) -> TaskStateResult:
|
||||
"""Internal async implementation of A2A delegation."""
|
||||
if transport is None:
|
||||
transport = ClientTransportConfig()
|
||||
if auth:
|
||||
auth_data = auth.model_dump_json(
|
||||
exclude={
|
||||
@@ -421,70 +351,22 @@ async def _aexecute_a2a_delegation_impl(
|
||||
"_authorization_callback",
|
||||
}
|
||||
)
|
||||
auth_hash = _auth_store.compute_key(type(auth).__name__, auth_data)
|
||||
auth_hash = hash((type(auth).__name__, auth_data))
|
||||
else:
|
||||
auth_hash = _auth_store.compute_key("none", endpoint)
|
||||
_auth_store.set(auth_hash, auth)
|
||||
auth_hash = 0
|
||||
_auth_store[auth_hash] = auth
|
||||
agent_card = await _afetch_agent_card_cached(
|
||||
endpoint=endpoint, auth_hash=auth_hash, timeout=timeout
|
||||
)
|
||||
|
||||
validate_auth_against_agent_card(agent_card, auth)
|
||||
|
||||
unsupported_exts = validate_required_extensions(agent_card, client_extensions)
|
||||
if unsupported_exts:
|
||||
ext_uris = [ext.uri for ext in unsupported_exts]
|
||||
raise ValueError(
|
||||
f"Agent requires extensions not supported by client: {ext_uris}"
|
||||
)
|
||||
|
||||
negotiated: NegotiatedTransport | None = None
|
||||
effective_transport: TransportType = transport.preferred or _DEFAULT_TRANSPORT
|
||||
effective_url = endpoint
|
||||
|
||||
client_transports: list[str] = (
|
||||
list(transport.supported) if transport.supported else [_DEFAULT_TRANSPORT]
|
||||
)
|
||||
|
||||
try:
|
||||
negotiated = negotiate_transport(
|
||||
agent_card=agent_card,
|
||||
client_supported_transports=client_transports,
|
||||
client_preferred_transport=transport.preferred,
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=agent_card.name,
|
||||
)
|
||||
effective_transport = negotiated.transport # type: ignore[assignment]
|
||||
effective_url = negotiated.url
|
||||
except TransportNegotiationError as e:
|
||||
logger.warning(
|
||||
"Transport negotiation failed, using fallback",
|
||||
extra={
|
||||
"error": str(e),
|
||||
"fallback_transport": effective_transport,
|
||||
"fallback_url": effective_url,
|
||||
"endpoint": endpoint,
|
||||
"client_transports": client_transports,
|
||||
"server_transports": [
|
||||
iface.transport for iface in agent_card.additional_interfaces or []
|
||||
]
|
||||
+ [agent_card.preferred_transport or "JSONRPC"],
|
||||
},
|
||||
)
|
||||
|
||||
effective_output_modes = accepted_output_modes or DEFAULT_CLIENT_OUTPUT_MODES.copy()
|
||||
|
||||
content_negotiated = negotiate_content_types(
|
||||
agent_card=agent_card,
|
||||
client_output_modes=accepted_output_modes,
|
||||
skill_name=skill_id,
|
||||
endpoint=endpoint,
|
||||
a2a_agent_name=agent_card.name,
|
||||
)
|
||||
if content_negotiated.output_modes:
|
||||
effective_output_modes = content_negotiated.output_modes
|
||||
|
||||
headers, _ = await _prepare_auth_headers(auth, timeout)
|
||||
headers: MutableMapping[str, str] = {}
|
||||
if auth:
|
||||
async with httpx.AsyncClient(timeout=timeout) as temp_auth_client:
|
||||
if isinstance(auth, (HTTPDigestAuth, APIKeyAuth)):
|
||||
configure_auth_client(auth, temp_auth_client)
|
||||
headers = await auth.apply_auth(temp_auth_client, {})
|
||||
|
||||
a2a_agent_name = None
|
||||
if agent_card.name:
|
||||
@@ -559,13 +441,10 @@ async def _aexecute_a2a_delegation_impl(
|
||||
if skill_id:
|
||||
message_metadata["skill_id"] = skill_id
|
||||
|
||||
parts_list: list[Part] = [Part(root=TextPart(**parts))]
|
||||
parts_list.extend(_create_file_parts(input_files))
|
||||
|
||||
message = Message(
|
||||
role=Role.user,
|
||||
message_id=str(uuid.uuid4()),
|
||||
parts=parts_list,
|
||||
parts=[Part(root=TextPart(**parts))],
|
||||
context_id=context_id,
|
||||
task_id=task_id,
|
||||
reference_task_ids=reference_task_ids,
|
||||
@@ -634,22 +513,15 @@ async def _aexecute_a2a_delegation_impl(
|
||||
|
||||
use_streaming = not use_polling and push_config_for_client is None
|
||||
|
||||
client_agent_card = agent_card
|
||||
if effective_url != agent_card.url:
|
||||
client_agent_card = agent_card.model_copy(update={"url": effective_url})
|
||||
|
||||
async with _create_a2a_client(
|
||||
agent_card=client_agent_card,
|
||||
transport_protocol=effective_transport,
|
||||
agent_card=agent_card,
|
||||
transport_protocol=transport_protocol,
|
||||
timeout=timeout,
|
||||
headers=headers,
|
||||
streaming=use_streaming,
|
||||
auth=auth,
|
||||
use_polling=use_polling,
|
||||
push_notification_config=push_config_for_client,
|
||||
client_extensions=client_extensions,
|
||||
accepted_output_modes=effective_output_modes, # type: ignore[arg-type]
|
||||
grpc_config=transport.grpc,
|
||||
) as client:
|
||||
result = await handler.execute(
|
||||
client=client,
|
||||
@@ -663,245 +535,6 @@ async def _aexecute_a2a_delegation_impl(
|
||||
return result
|
||||
|
||||
|
||||
def _normalize_grpc_metadata(
|
||||
metadata: tuple[tuple[str, str], ...] | None,
|
||||
) -> tuple[tuple[str, str], ...] | None:
|
||||
"""Lowercase all gRPC metadata keys.
|
||||
|
||||
gRPC requires lowercase metadata keys, but some libraries (like the A2A SDK)
|
||||
use mixed-case headers like 'X-A2A-Extensions'. This normalizes them.
|
||||
"""
|
||||
if metadata is None:
|
||||
return None
|
||||
return tuple((key.lower(), value) for key, value in metadata)
|
||||
|
||||
|
||||
def _create_grpc_interceptors(
|
||||
auth_metadata: list[tuple[str, str]] | None = None,
|
||||
) -> list[Any]:
|
||||
"""Create gRPC interceptors for metadata normalization and auth injection.
|
||||
|
||||
Args:
|
||||
auth_metadata: Optional auth metadata to inject into all calls.
|
||||
Used for insecure channels that need auth (non-localhost without TLS).
|
||||
|
||||
Returns a list of interceptors that lowercase metadata keys for gRPC
|
||||
compatibility. Must be called after grpc is imported.
|
||||
"""
|
||||
import grpc.aio # type: ignore[import-untyped]
|
||||
|
||||
def _merge_metadata(
|
||||
existing: tuple[tuple[str, str], ...] | None,
|
||||
auth: list[tuple[str, str]] | None,
|
||||
) -> tuple[tuple[str, str], ...] | None:
|
||||
"""Merge existing metadata with auth metadata and normalize keys."""
|
||||
merged: list[tuple[str, str]] = []
|
||||
if existing:
|
||||
merged.extend(existing)
|
||||
if auth:
|
||||
merged.extend(auth)
|
||||
if not merged:
|
||||
return None
|
||||
return tuple((key.lower(), value) for key, value in merged)
|
||||
|
||||
def _inject_metadata(client_call_details: Any) -> Any:
|
||||
"""Inject merged metadata into call details."""
|
||||
return client_call_details._replace(
|
||||
metadata=_merge_metadata(client_call_details.metadata, auth_metadata)
|
||||
)
|
||||
|
||||
class MetadataUnaryUnary(grpc.aio.UnaryUnaryClientInterceptor): # type: ignore[misc,no-any-unimported]
|
||||
"""Interceptor for unary-unary calls that injects auth metadata."""
|
||||
|
||||
async def intercept_unary_unary( # type: ignore[no-untyped-def]
|
||||
self, continuation, client_call_details, request
|
||||
):
|
||||
"""Intercept unary-unary call and inject metadata."""
|
||||
return await continuation(_inject_metadata(client_call_details), request)
|
||||
|
||||
class MetadataUnaryStream(grpc.aio.UnaryStreamClientInterceptor): # type: ignore[misc,no-any-unimported]
|
||||
"""Interceptor for unary-stream calls that injects auth metadata."""
|
||||
|
||||
async def intercept_unary_stream( # type: ignore[no-untyped-def]
|
||||
self, continuation, client_call_details, request
|
||||
):
|
||||
"""Intercept unary-stream call and inject metadata."""
|
||||
return await continuation(_inject_metadata(client_call_details), request)
|
||||
|
||||
class MetadataStreamUnary(grpc.aio.StreamUnaryClientInterceptor): # type: ignore[misc,no-any-unimported]
|
||||
"""Interceptor for stream-unary calls that injects auth metadata."""
|
||||
|
||||
async def intercept_stream_unary( # type: ignore[no-untyped-def]
|
||||
self, continuation, client_call_details, request_iterator
|
||||
):
|
||||
"""Intercept stream-unary call and inject metadata."""
|
||||
return await continuation(
|
||||
_inject_metadata(client_call_details), request_iterator
|
||||
)
|
||||
|
||||
class MetadataStreamStream(grpc.aio.StreamStreamClientInterceptor): # type: ignore[misc,no-any-unimported]
|
||||
"""Interceptor for stream-stream calls that injects auth metadata."""
|
||||
|
||||
async def intercept_stream_stream( # type: ignore[no-untyped-def]
|
||||
self, continuation, client_call_details, request_iterator
|
||||
):
|
||||
"""Intercept stream-stream call and inject metadata."""
|
||||
return await continuation(
|
||||
_inject_metadata(client_call_details), request_iterator
|
||||
)
|
||||
|
||||
return [
|
||||
MetadataUnaryUnary(),
|
||||
MetadataUnaryStream(),
|
||||
MetadataStreamUnary(),
|
||||
MetadataStreamStream(),
|
||||
]
|
||||
|
||||
|
||||
def _create_grpc_channel_factory(
|
||||
grpc_config: GRPCClientConfig,
|
||||
auth: ClientAuthScheme | None = None,
|
||||
) -> Callable[[str], Any]:
|
||||
"""Create a gRPC channel factory with the given configuration.
|
||||
|
||||
Args:
|
||||
grpc_config: gRPC client configuration with channel options.
|
||||
auth: Optional ClientAuthScheme for TLS and auth configuration.
|
||||
|
||||
Returns:
|
||||
A callable that creates gRPC channels from URLs.
|
||||
"""
|
||||
try:
|
||||
import grpc
|
||||
except ImportError as e:
|
||||
raise ImportError(
|
||||
"gRPC transport requires grpcio. Install with: pip install a2a-sdk[grpc]"
|
||||
) from e
|
||||
|
||||
auth_metadata: list[tuple[str, str]] = []
|
||||
|
||||
if auth is not None:
|
||||
from crewai.a2a.auth.client_schemes import (
|
||||
APIKeyAuth,
|
||||
BearerTokenAuth,
|
||||
HTTPBasicAuth,
|
||||
HTTPDigestAuth,
|
||||
OAuth2AuthorizationCode,
|
||||
OAuth2ClientCredentials,
|
||||
)
|
||||
|
||||
if isinstance(auth, HTTPDigestAuth):
|
||||
raise ValueError(
|
||||
"HTTPDigestAuth is not supported with gRPC transport. "
|
||||
"Digest authentication requires HTTP challenge-response flow. "
|
||||
"Use BearerTokenAuth, HTTPBasicAuth, APIKeyAuth (header), or OAuth2 instead."
|
||||
)
|
||||
if isinstance(auth, APIKeyAuth) and auth.location in ("query", "cookie"):
|
||||
raise ValueError(
|
||||
f"APIKeyAuth with location='{auth.location}' is not supported with gRPC transport. "
|
||||
"gRPC only supports header-based authentication. "
|
||||
"Use APIKeyAuth with location='header' instead."
|
||||
)
|
||||
|
||||
if isinstance(auth, BearerTokenAuth):
|
||||
auth_metadata.append(("authorization", f"Bearer {auth.token}"))
|
||||
elif isinstance(auth, HTTPBasicAuth):
|
||||
import base64
|
||||
|
||||
basic_credentials = f"{auth.username}:{auth.password}"
|
||||
encoded = base64.b64encode(basic_credentials.encode()).decode()
|
||||
auth_metadata.append(("authorization", f"Basic {encoded}"))
|
||||
elif isinstance(auth, APIKeyAuth) and auth.location == "header":
|
||||
header_name = auth.name.lower()
|
||||
auth_metadata.append((header_name, auth.api_key))
|
||||
elif isinstance(auth, (OAuth2ClientCredentials, OAuth2AuthorizationCode)):
|
||||
if auth._access_token:
|
||||
auth_metadata.append(("authorization", f"Bearer {auth._access_token}"))
|
||||
|
||||
def factory(url: str) -> Any:
|
||||
"""Create a gRPC channel for the given URL."""
|
||||
target = url
|
||||
use_tls = False
|
||||
|
||||
if url.startswith("grpcs://"):
|
||||
target = url[8:]
|
||||
use_tls = True
|
||||
elif url.startswith("grpc://"):
|
||||
target = url[7:]
|
||||
elif url.startswith("https://"):
|
||||
target = url[8:]
|
||||
use_tls = True
|
||||
elif url.startswith("http://"):
|
||||
target = url[7:]
|
||||
|
||||
options: list[tuple[str, Any]] = []
|
||||
if grpc_config.max_send_message_length is not None:
|
||||
options.append(
|
||||
("grpc.max_send_message_length", grpc_config.max_send_message_length)
|
||||
)
|
||||
if grpc_config.max_receive_message_length is not None:
|
||||
options.append(
|
||||
(
|
||||
"grpc.max_receive_message_length",
|
||||
grpc_config.max_receive_message_length,
|
||||
)
|
||||
)
|
||||
if grpc_config.keepalive_time_ms is not None:
|
||||
options.append(("grpc.keepalive_time_ms", grpc_config.keepalive_time_ms))
|
||||
if grpc_config.keepalive_timeout_ms is not None:
|
||||
options.append(
|
||||
("grpc.keepalive_timeout_ms", grpc_config.keepalive_timeout_ms)
|
||||
)
|
||||
|
||||
channel_credentials = None
|
||||
if auth and hasattr(auth, "tls") and auth.tls:
|
||||
channel_credentials = auth.tls.get_grpc_credentials()
|
||||
elif use_tls:
|
||||
channel_credentials = grpc.ssl_channel_credentials()
|
||||
|
||||
if channel_credentials and auth_metadata:
|
||||
|
||||
class AuthMetadataPlugin(grpc.AuthMetadataPlugin): # type: ignore[misc,no-any-unimported]
|
||||
"""gRPC auth metadata plugin that adds auth headers as metadata."""
|
||||
|
||||
def __init__(self, metadata: list[tuple[str, str]]) -> None:
|
||||
self._metadata = tuple(metadata)
|
||||
|
||||
def __call__( # type: ignore[no-any-unimported]
|
||||
self,
|
||||
context: grpc.AuthMetadataContext,
|
||||
callback: grpc.AuthMetadataPluginCallback,
|
||||
) -> None:
|
||||
callback(self._metadata, None)
|
||||
|
||||
call_creds = grpc.metadata_call_credentials(
|
||||
AuthMetadataPlugin(auth_metadata)
|
||||
)
|
||||
credentials = grpc.composite_channel_credentials(
|
||||
channel_credentials, call_creds
|
||||
)
|
||||
interceptors = _create_grpc_interceptors()
|
||||
return grpc.aio.secure_channel(
|
||||
target, credentials, options=options or None, interceptors=interceptors
|
||||
)
|
||||
if channel_credentials:
|
||||
interceptors = _create_grpc_interceptors()
|
||||
return grpc.aio.secure_channel(
|
||||
target,
|
||||
channel_credentials,
|
||||
options=options or None,
|
||||
interceptors=interceptors,
|
||||
)
|
||||
interceptors = _create_grpc_interceptors(
|
||||
auth_metadata=auth_metadata if auth_metadata else None
|
||||
)
|
||||
return grpc.aio.insecure_channel(
|
||||
target, options=options or None, interceptors=interceptors
|
||||
)
|
||||
|
||||
return factory
|
||||
|
||||
|
||||
@asynccontextmanager
|
||||
async def _create_a2a_client(
|
||||
agent_card: AgentCard,
|
||||
@@ -909,12 +542,9 @@ async def _create_a2a_client(
|
||||
timeout: int,
|
||||
headers: MutableMapping[str, str],
|
||||
streaming: bool,
|
||||
auth: ClientAuthScheme | None = None,
|
||||
auth: AuthScheme | None = None,
|
||||
use_polling: bool = False,
|
||||
push_notification_config: PushNotificationConfig | None = None,
|
||||
client_extensions: list[str] | None = None,
|
||||
accepted_output_modes: list[str] | None = None,
|
||||
grpc_config: GRPCClientConfig | None = None,
|
||||
) -> AsyncIterator[Client]:
|
||||
"""Create and configure an A2A client.
|
||||
|
||||
@@ -924,21 +554,16 @@ async def _create_a2a_client(
|
||||
timeout: Request timeout in seconds.
|
||||
headers: HTTP headers (already with auth applied).
|
||||
streaming: Enable streaming responses.
|
||||
auth: Optional ClientAuthScheme for client configuration.
|
||||
auth: Optional AuthScheme for client configuration.
|
||||
use_polling: Enable polling mode.
|
||||
push_notification_config: Optional push notification config.
|
||||
client_extensions: A2A protocol extension URIs to declare support for.
|
||||
accepted_output_modes: MIME types the client can accept in responses.
|
||||
grpc_config: Optional gRPC client configuration.
|
||||
|
||||
Yields:
|
||||
Configured A2A client instance.
|
||||
"""
|
||||
verify = _get_tls_verify(auth)
|
||||
async with httpx.AsyncClient(
|
||||
timeout=timeout,
|
||||
headers=headers,
|
||||
verify=verify,
|
||||
) as httpx_client:
|
||||
if auth and isinstance(auth, (HTTPDigestAuth, APIKeyAuth)):
|
||||
configure_auth_client(auth, httpx_client)
|
||||
@@ -954,27 +579,15 @@ async def _create_a2a_client(
|
||||
)
|
||||
)
|
||||
|
||||
grpc_channel_factory = None
|
||||
if transport_protocol == "GRPC":
|
||||
grpc_channel_factory = _create_grpc_channel_factory(
|
||||
grpc_config or GRPCClientConfig(),
|
||||
auth=auth,
|
||||
)
|
||||
|
||||
config = ClientConfig(
|
||||
httpx_client=httpx_client,
|
||||
supported_transports=[transport_protocol],
|
||||
streaming=streaming and not use_polling,
|
||||
polling=use_polling,
|
||||
accepted_output_modes=accepted_output_modes or DEFAULT_CLIENT_OUTPUT_MODES, # type: ignore[arg-type]
|
||||
accepted_output_modes=["application/json"],
|
||||
push_notification_configs=push_configs,
|
||||
grpc_channel_factory=grpc_channel_factory,
|
||||
)
|
||||
|
||||
factory = ClientFactory(config)
|
||||
client = factory.create(agent_card)
|
||||
|
||||
if client_extensions:
|
||||
await client.add_request_middleware(ExtensionsMiddleware(client_extensions))
|
||||
|
||||
yield client
|
||||
|
||||
@@ -1,131 +0,0 @@
|
||||
"""Structured JSON logging utilities for A2A module."""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from contextvars import ContextVar
|
||||
from datetime import datetime, timezone
|
||||
import json
|
||||
import logging
|
||||
from typing import Any
|
||||
|
||||
|
||||
_log_context: ContextVar[dict[str, Any] | None] = ContextVar(
|
||||
"log_context", default=None
|
||||
)
|
||||
|
||||
|
||||
class JSONFormatter(logging.Formatter):
|
||||
"""JSON formatter for structured logging.
|
||||
|
||||
Outputs logs as JSON with consistent fields for log aggregators.
|
||||
"""
|
||||
|
||||
def format(self, record: logging.LogRecord) -> str:
|
||||
"""Format log record as JSON string."""
|
||||
log_data: dict[str, Any] = {
|
||||
"timestamp": datetime.now(timezone.utc).isoformat(),
|
||||
"level": record.levelname,
|
||||
"logger": record.name,
|
||||
"message": record.getMessage(),
|
||||
}
|
||||
|
||||
if record.exc_info:
|
||||
log_data["exception"] = self.formatException(record.exc_info)
|
||||
|
||||
context = _log_context.get()
|
||||
if context is not None:
|
||||
log_data.update(context)
|
||||
|
||||
if hasattr(record, "task_id"):
|
||||
log_data["task_id"] = record.task_id
|
||||
if hasattr(record, "context_id"):
|
||||
log_data["context_id"] = record.context_id
|
||||
if hasattr(record, "agent"):
|
||||
log_data["agent"] = record.agent
|
||||
if hasattr(record, "endpoint"):
|
||||
log_data["endpoint"] = record.endpoint
|
||||
if hasattr(record, "extension"):
|
||||
log_data["extension"] = record.extension
|
||||
if hasattr(record, "error"):
|
||||
log_data["error"] = record.error
|
||||
|
||||
for key, value in record.__dict__.items():
|
||||
if key.startswith("_") or key in (
|
||||
"name",
|
||||
"msg",
|
||||
"args",
|
||||
"created",
|
||||
"filename",
|
||||
"funcName",
|
||||
"levelname",
|
||||
"levelno",
|
||||
"lineno",
|
||||
"module",
|
||||
"msecs",
|
||||
"pathname",
|
||||
"process",
|
||||
"processName",
|
||||
"relativeCreated",
|
||||
"stack_info",
|
||||
"exc_info",
|
||||
"exc_text",
|
||||
"thread",
|
||||
"threadName",
|
||||
"taskName",
|
||||
"message",
|
||||
):
|
||||
continue
|
||||
if key not in log_data:
|
||||
log_data[key] = value
|
||||
|
||||
return json.dumps(log_data, default=str)
|
||||
|
||||
|
||||
class LogContext:
|
||||
"""Context manager for adding fields to all logs within a scope.
|
||||
|
||||
Example:
|
||||
with LogContext(task_id="abc", context_id="xyz"):
|
||||
logger.info("Processing task") # Includes task_id and context_id
|
||||
"""
|
||||
|
||||
def __init__(self, **fields: Any) -> None:
|
||||
self._fields = fields
|
||||
self._token: Any = None
|
||||
|
||||
def __enter__(self) -> LogContext:
|
||||
current = _log_context.get() or {}
|
||||
new_context = {**current, **self._fields}
|
||||
self._token = _log_context.set(new_context)
|
||||
return self
|
||||
|
||||
def __exit__(self, *args: Any) -> None:
|
||||
_log_context.reset(self._token)
|
||||
|
||||
|
||||
def configure_json_logging(logger_name: str = "crewai.a2a") -> None:
|
||||
"""Configure JSON logging for the A2A module.
|
||||
|
||||
Args:
|
||||
logger_name: Logger name to configure.
|
||||
"""
|
||||
logger = logging.getLogger(logger_name)
|
||||
|
||||
for handler in logger.handlers[:]:
|
||||
logger.removeHandler(handler)
|
||||
|
||||
handler = logging.StreamHandler()
|
||||
handler.setFormatter(JSONFormatter())
|
||||
logger.addHandler(handler)
|
||||
|
||||
|
||||
def get_logger(name: str) -> logging.Logger:
|
||||
"""Get a logger configured for structured JSON output.
|
||||
|
||||
Args:
|
||||
name: Logger name.
|
||||
|
||||
Returns:
|
||||
Configured logger instance.
|
||||
"""
|
||||
return logging.getLogger(name)
|
||||
@@ -7,40 +7,26 @@ import base64
|
||||
from collections.abc import Callable, Coroutine
|
||||
from datetime import datetime
|
||||
from functools import wraps
|
||||
import json
|
||||
import logging
|
||||
import os
|
||||
from typing import TYPE_CHECKING, Any, ParamSpec, TypeVar, TypedDict, cast
|
||||
from typing import TYPE_CHECKING, Any, ParamSpec, TypeVar, cast
|
||||
from urllib.parse import urlparse
|
||||
|
||||
from a2a.server.agent_execution import RequestContext
|
||||
from a2a.server.events import EventQueue
|
||||
from a2a.types import (
|
||||
Artifact,
|
||||
FileWithBytes,
|
||||
FileWithUri,
|
||||
InternalError,
|
||||
InvalidParamsError,
|
||||
Message,
|
||||
Part,
|
||||
Task as A2ATask,
|
||||
TaskState,
|
||||
TaskStatus,
|
||||
TaskStatusUpdateEvent,
|
||||
)
|
||||
from a2a.utils import (
|
||||
get_data_parts,
|
||||
get_file_parts,
|
||||
new_agent_text_message,
|
||||
new_data_artifact,
|
||||
new_text_artifact,
|
||||
)
|
||||
from a2a.utils import new_agent_text_message, new_text_artifact
|
||||
from a2a.utils.errors import ServerError
|
||||
from aiocache import SimpleMemoryCache, caches # type: ignore[import-untyped]
|
||||
from pydantic import BaseModel
|
||||
|
||||
from crewai.a2a.utils.agent_card import _get_server_config
|
||||
from crewai.a2a.utils.content_type import validate_message_parts
|
||||
from crewai.events.event_bus import crewai_event_bus
|
||||
from crewai.events.types.a2a_events import (
|
||||
A2AServerTaskCanceledEvent,
|
||||
@@ -49,11 +35,9 @@ from crewai.events.types.a2a_events import (
|
||||
A2AServerTaskStartedEvent,
|
||||
)
|
||||
from crewai.task import Task
|
||||
from crewai.utilities.pydantic_schema_utils import create_model_from_schema
|
||||
|
||||
|
||||
if TYPE_CHECKING:
|
||||
from crewai.a2a.extensions.server import ExtensionContext, ServerExtensionRegistry
|
||||
from crewai.agent import Agent
|
||||
|
||||
|
||||
@@ -63,17 +47,7 @@ P = ParamSpec("P")
|
||||
T = TypeVar("T")
|
||||
|
||||
|
||||
class RedisCacheConfig(TypedDict, total=False):
|
||||
"""Configuration for aiocache Redis backend."""
|
||||
|
||||
cache: str
|
||||
endpoint: str
|
||||
port: int
|
||||
db: int
|
||||
password: str
|
||||
|
||||
|
||||
def _parse_redis_url(url: str) -> RedisCacheConfig:
|
||||
def _parse_redis_url(url: str) -> dict[str, Any]:
|
||||
"""Parse a Redis URL into aiocache configuration.
|
||||
|
||||
Args:
|
||||
@@ -82,8 +56,9 @@ def _parse_redis_url(url: str) -> RedisCacheConfig:
|
||||
Returns:
|
||||
Configuration dict for aiocache.RedisCache.
|
||||
"""
|
||||
|
||||
parsed = urlparse(url)
|
||||
config: RedisCacheConfig = {
|
||||
config: dict[str, Any] = {
|
||||
"cache": "aiocache.RedisCache",
|
||||
"endpoint": parsed.hostname or "localhost",
|
||||
"port": parsed.port or 6379,
|
||||
@@ -163,10 +138,7 @@ def cancellable(
|
||||
if message["type"] == "message":
|
||||
return True
|
||||
except (OSError, ConnectionError) as e:
|
||||
logger.warning(
|
||||
"Cancel watcher Redis error, falling back to polling",
|
||||
extra={"task_id": task_id, "error": str(e)},
|
||||
)
|
||||
logger.warning("Cancel watcher error for task_id=%s: %s", task_id, e)
|
||||
return await poll_for_cancel()
|
||||
return False
|
||||
|
||||
@@ -194,98 +166,7 @@ def cancellable(
|
||||
return wrapper
|
||||
|
||||
|
||||
def _convert_a2a_files_to_file_inputs(
|
||||
a2a_files: list[FileWithBytes | FileWithUri],
|
||||
) -> dict[str, Any]:
|
||||
"""Convert a2a file types to crewai FileInput dict.
|
||||
|
||||
Args:
|
||||
a2a_files: List of FileWithBytes or FileWithUri from a2a SDK.
|
||||
|
||||
Returns:
|
||||
Dictionary mapping file names to FileInput objects.
|
||||
"""
|
||||
try:
|
||||
from crewai_files import File, FileBytes
|
||||
except ImportError:
|
||||
logger.debug("crewai_files not installed, returning empty file dict")
|
||||
return {}
|
||||
|
||||
file_dict: dict[str, Any] = {}
|
||||
for idx, a2a_file in enumerate(a2a_files):
|
||||
if isinstance(a2a_file, FileWithBytes):
|
||||
file_bytes = base64.b64decode(a2a_file.bytes)
|
||||
name = a2a_file.name or f"file_{idx}"
|
||||
file_source = FileBytes(data=file_bytes, filename=a2a_file.name)
|
||||
file_dict[name] = File(source=file_source)
|
||||
elif isinstance(a2a_file, FileWithUri):
|
||||
name = a2a_file.name or f"file_{idx}"
|
||||
file_dict[name] = File(source=a2a_file.uri)
|
||||
|
||||
return file_dict
|
||||
|
||||
|
||||
def _extract_response_schema(parts: list[Part]) -> dict[str, Any] | None:
|
||||
"""Extract response schema from message parts metadata.
|
||||
|
||||
The client may include a JSON schema in TextPart metadata to specify
|
||||
the expected response format (see delegation.py line 463).
|
||||
|
||||
Args:
|
||||
parts: List of message parts.
|
||||
|
||||
Returns:
|
||||
JSON schema dict if found, None otherwise.
|
||||
"""
|
||||
for part in parts:
|
||||
if part.root.kind == "text" and part.root.metadata:
|
||||
schema = part.root.metadata.get("schema")
|
||||
if schema and isinstance(schema, dict):
|
||||
return schema # type: ignore[no-any-return]
|
||||
return None
|
||||
|
||||
|
||||
def _create_result_artifact(
|
||||
result: Any,
|
||||
task_id: str,
|
||||
) -> Artifact:
|
||||
"""Create artifact from task result, using DataPart for structured data.
|
||||
|
||||
Args:
|
||||
result: The task execution result.
|
||||
task_id: The task ID for naming the artifact.
|
||||
|
||||
Returns:
|
||||
Artifact with appropriate part type (DataPart for dict/Pydantic, TextPart for strings).
|
||||
"""
|
||||
artifact_name = f"result_{task_id}"
|
||||
if isinstance(result, dict):
|
||||
return new_data_artifact(artifact_name, result)
|
||||
if isinstance(result, BaseModel):
|
||||
return new_data_artifact(artifact_name, result.model_dump())
|
||||
return new_text_artifact(artifact_name, str(result))
|
||||
|
||||
|
||||
def _build_task_description(
|
||||
user_message: str,
|
||||
structured_inputs: list[dict[str, Any]],
|
||||
) -> str:
|
||||
"""Build task description including structured data if present.
|
||||
|
||||
Args:
|
||||
user_message: The original user message text.
|
||||
structured_inputs: List of structured data from DataParts.
|
||||
|
||||
Returns:
|
||||
Task description with structured data appended if present.
|
||||
"""
|
||||
if not structured_inputs:
|
||||
return user_message
|
||||
|
||||
structured_json = json.dumps(structured_inputs, indent=2)
|
||||
return f"{user_message}\n\nStructured Data:\n{structured_json}"
|
||||
|
||||
|
||||
@cancellable
|
||||
async def execute(
|
||||
agent: Agent,
|
||||
context: RequestContext,
|
||||
@@ -297,54 +178,15 @@ async def execute(
|
||||
agent: The CrewAI agent to execute the task.
|
||||
context: The A2A request context containing the user's message.
|
||||
event_queue: The event queue for sending responses back.
|
||||
|
||||
TODOs:
|
||||
* need to impl both of structured output and file inputs, depends on `file_inputs` for
|
||||
`crewai.task.Task`, pass the below two to Task. both utils in `a2a.utils.parts`
|
||||
* structured outputs ingestion, `structured_inputs = get_data_parts(parts=context.message.parts)`
|
||||
* file inputs ingestion, `file_inputs = get_file_parts(parts=context.message.parts)`
|
||||
"""
|
||||
await _execute_impl(agent, context, event_queue, None, None)
|
||||
|
||||
|
||||
@cancellable
|
||||
async def _execute_impl(
|
||||
agent: Agent,
|
||||
context: RequestContext,
|
||||
event_queue: EventQueue,
|
||||
extension_registry: ServerExtensionRegistry | None,
|
||||
extension_context: ExtensionContext | None,
|
||||
) -> None:
|
||||
"""Internal implementation for task execution with optional extensions."""
|
||||
server_config = _get_server_config(agent)
|
||||
if context.message and context.message.parts and server_config:
|
||||
allowed_modes = server_config.default_input_modes
|
||||
invalid_types = validate_message_parts(context.message.parts, allowed_modes)
|
||||
if invalid_types:
|
||||
raise ServerError(
|
||||
InvalidParamsError(
|
||||
message=f"Unsupported content type(s): {', '.join(invalid_types)}. "
|
||||
f"Supported: {', '.join(allowed_modes)}"
|
||||
)
|
||||
)
|
||||
|
||||
if extension_registry and extension_context:
|
||||
await extension_registry.invoke_on_request(extension_context)
|
||||
|
||||
user_message = context.get_user_input()
|
||||
|
||||
response_model: type[BaseModel] | None = None
|
||||
structured_inputs: list[dict[str, Any]] = []
|
||||
a2a_files: list[FileWithBytes | FileWithUri] = []
|
||||
|
||||
if context.message and context.message.parts:
|
||||
schema = _extract_response_schema(context.message.parts)
|
||||
if schema:
|
||||
try:
|
||||
response_model = create_model_from_schema(schema)
|
||||
except Exception as e:
|
||||
logger.debug(
|
||||
"Failed to create response model from schema",
|
||||
extra={"error": str(e), "schema_title": schema.get("title")},
|
||||
)
|
||||
|
||||
structured_inputs = get_data_parts(context.message.parts)
|
||||
a2a_files = get_file_parts(context.message.parts)
|
||||
|
||||
task_id = context.task_id
|
||||
context_id = context.context_id
|
||||
if task_id is None or context_id is None:
|
||||
@@ -361,11 +203,9 @@ async def _execute_impl(
|
||||
raise ServerError(InvalidParamsError(message=msg)) from None
|
||||
|
||||
task = Task(
|
||||
description=_build_task_description(user_message, structured_inputs),
|
||||
description=user_message,
|
||||
expected_output="Response to the user's request",
|
||||
agent=agent,
|
||||
response_model=response_model,
|
||||
input_files=_convert_a2a_files_to_file_inputs(a2a_files),
|
||||
)
|
||||
|
||||
crewai_event_bus.emit(
|
||||
@@ -380,10 +220,6 @@ async def _execute_impl(
|
||||
|
||||
try:
|
||||
result = await agent.aexecute_task(task=task, tools=agent.tools)
|
||||
if extension_registry and extension_context:
|
||||
result = await extension_registry.invoke_on_response(
|
||||
extension_context, result
|
||||
)
|
||||
result_str = str(result)
|
||||
history: list[Message] = [context.message] if context.message else []
|
||||
history.append(new_agent_text_message(result_str, context_id, task_id))
|
||||
@@ -391,8 +227,8 @@ async def _execute_impl(
|
||||
A2ATask(
|
||||
id=task_id,
|
||||
context_id=context_id,
|
||||
status=TaskStatus(state=TaskState.completed),
|
||||
artifacts=[_create_result_artifact(result, task_id)],
|
||||
status=TaskStatus(state=TaskState.input_required),
|
||||
artifacts=[new_text_artifact(result_str, f"result_{task_id}")],
|
||||
history=history,
|
||||
)
|
||||
)
|
||||
@@ -433,27 +269,6 @@ async def _execute_impl(
|
||||
) from e
|
||||
|
||||
|
||||
async def execute_with_extensions(
|
||||
agent: Agent,
|
||||
context: RequestContext,
|
||||
event_queue: EventQueue,
|
||||
extension_registry: ServerExtensionRegistry,
|
||||
extension_context: ExtensionContext,
|
||||
) -> None:
|
||||
"""Execute an A2A task with extension hooks.
|
||||
|
||||
Args:
|
||||
agent: The CrewAI agent to execute the task.
|
||||
context: The A2A request context containing the user's message.
|
||||
event_queue: The event queue for sending responses back.
|
||||
extension_registry: Registry of server extensions.
|
||||
extension_context: Context for extension hooks.
|
||||
"""
|
||||
await _execute_impl(
|
||||
agent, context, event_queue, extension_registry, extension_context
|
||||
)
|
||||
|
||||
|
||||
async def cancel(
|
||||
context: RequestContext,
|
||||
event_queue: EventQueue,
|
||||
|
||||
@@ -1,215 +0,0 @@
|
||||
"""Transport negotiation utilities for A2A protocol.
|
||||
|
||||
This module provides functionality for negotiating the transport protocol
|
||||
between an A2A client and server based on their respective capabilities
|
||||
and preferences.
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
from dataclasses import dataclass
|
||||
from typing import Final, Literal
|
||||
|
||||
from a2a.types import AgentCard, AgentInterface
|
||||
|
||||
from crewai.events.event_bus import crewai_event_bus
|
||||
from crewai.events.types.a2a_events import A2ATransportNegotiatedEvent
|
||||
|
||||
|
||||
TransportProtocol = Literal["JSONRPC", "GRPC", "HTTP+JSON"]
|
||||
NegotiationSource = Literal["client_preferred", "server_preferred", "fallback"]
|
||||
|
||||
JSONRPC_TRANSPORT: Literal["JSONRPC"] = "JSONRPC"
|
||||
GRPC_TRANSPORT: Literal["GRPC"] = "GRPC"
|
||||
HTTP_JSON_TRANSPORT: Literal["HTTP+JSON"] = "HTTP+JSON"
|
||||
|
||||
DEFAULT_TRANSPORT_PREFERENCE: Final[list[TransportProtocol]] = [
|
||||
JSONRPC_TRANSPORT,
|
||||
GRPC_TRANSPORT,
|
||||
HTTP_JSON_TRANSPORT,
|
||||
]
|
||||
|
||||
|
||||
@dataclass
|
||||
class NegotiatedTransport:
|
||||
"""Result of transport negotiation.
|
||||
|
||||
Attributes:
|
||||
transport: The negotiated transport protocol.
|
||||
url: The URL to use for this transport.
|
||||
source: How the transport was selected ('preferred', 'additional', 'fallback').
|
||||
"""
|
||||
|
||||
transport: str
|
||||
url: str
|
||||
source: NegotiationSource
|
||||
|
||||
|
||||
class TransportNegotiationError(Exception):
|
||||
"""Raised when no compatible transport can be negotiated."""
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
client_transports: list[str],
|
||||
server_transports: list[str],
|
||||
message: str | None = None,
|
||||
) -> None:
|
||||
"""Initialize the error with negotiation details.
|
||||
|
||||
Args:
|
||||
client_transports: Transports supported by the client.
|
||||
server_transports: Transports supported by the server.
|
||||
message: Optional custom error message.
|
||||
"""
|
||||
self.client_transports = client_transports
|
||||
self.server_transports = server_transports
|
||||
if message is None:
|
||||
message = (
|
||||
f"No compatible transport found. "
|
||||
f"Client supports: {client_transports}. "
|
||||
f"Server supports: {server_transports}."
|
||||
)
|
||||
super().__init__(message)
|
||||
|
||||
|
||||
def _get_server_interfaces(agent_card: AgentCard) -> list[AgentInterface]:
|
||||
"""Extract all available interfaces from an AgentCard.
|
||||
|
||||
Creates a unified list of interfaces including the primary URL and
|
||||
any additional interfaces declared by the agent.
|
||||
|
||||
Args:
|
||||
agent_card: The agent's card containing transport information.
|
||||
|
||||
Returns:
|
||||
List of AgentInterface objects representing all available endpoints.
|
||||
"""
|
||||
interfaces: list[AgentInterface] = []
|
||||
|
||||
primary_transport = agent_card.preferred_transport or JSONRPC_TRANSPORT
|
||||
interfaces.append(
|
||||
AgentInterface(
|
||||
transport=primary_transport,
|
||||
url=agent_card.url,
|
||||
)
|
||||
)
|
||||
|
||||
if agent_card.additional_interfaces:
|
||||
for interface in agent_card.additional_interfaces:
|
||||
is_duplicate = any(
|
||||
i.url == interface.url and i.transport == interface.transport
|
||||
for i in interfaces
|
||||
)
|
||||
if not is_duplicate:
|
||||
interfaces.append(interface)
|
||||
|
||||
return interfaces
|
||||
|
||||
|
||||
def negotiate_transport(
|
||||
agent_card: AgentCard,
|
||||
client_supported_transports: list[str] | None = None,
|
||||
client_preferred_transport: str | None = None,
|
||||
emit_event: bool = True,
|
||||
endpoint: str | None = None,
|
||||
a2a_agent_name: str | None = None,
|
||||
) -> NegotiatedTransport:
|
||||
"""Negotiate the transport protocol between client and server.
|
||||
|
||||
Compares the client's supported transports with the server's available
|
||||
interfaces to find a compatible transport and URL.
|
||||
|
||||
Negotiation logic:
|
||||
1. If client_preferred_transport is set and server supports it → use it
|
||||
2. Otherwise, if server's preferred is in client's supported → use server's
|
||||
3. Otherwise, find first match from client's supported in server's interfaces
|
||||
|
||||
Args:
|
||||
agent_card: The server's AgentCard with transport information.
|
||||
client_supported_transports: Transports the client can use.
|
||||
Defaults to ["JSONRPC"] if not specified.
|
||||
client_preferred_transport: Client's preferred transport. If set and
|
||||
server supports it, takes priority over server preference.
|
||||
emit_event: Whether to emit a transport negotiation event.
|
||||
endpoint: Original endpoint URL for event metadata.
|
||||
a2a_agent_name: Agent name for event metadata.
|
||||
|
||||
Returns:
|
||||
NegotiatedTransport with the selected transport, URL, and source.
|
||||
|
||||
Raises:
|
||||
TransportNegotiationError: If no compatible transport is found.
|
||||
"""
|
||||
if client_supported_transports is None:
|
||||
client_supported_transports = [JSONRPC_TRANSPORT]
|
||||
|
||||
client_transports = [t.upper() for t in client_supported_transports]
|
||||
client_preferred = (
|
||||
client_preferred_transport.upper() if client_preferred_transport else None
|
||||
)
|
||||
|
||||
server_interfaces = _get_server_interfaces(agent_card)
|
||||
server_transports = [i.transport.upper() for i in server_interfaces]
|
||||
|
||||
transport_to_interface: dict[str, AgentInterface] = {}
|
||||
for interface in server_interfaces:
|
||||
transport_upper = interface.transport.upper()
|
||||
if transport_upper not in transport_to_interface:
|
||||
transport_to_interface[transport_upper] = interface
|
||||
|
||||
result: NegotiatedTransport | None = None
|
||||
|
||||
if client_preferred and client_preferred in transport_to_interface:
|
||||
interface = transport_to_interface[client_preferred]
|
||||
result = NegotiatedTransport(
|
||||
transport=interface.transport,
|
||||
url=interface.url,
|
||||
source="client_preferred",
|
||||
)
|
||||
else:
|
||||
server_preferred = (agent_card.preferred_transport or JSONRPC_TRANSPORT).upper()
|
||||
if (
|
||||
server_preferred in client_transports
|
||||
and server_preferred in transport_to_interface
|
||||
):
|
||||
interface = transport_to_interface[server_preferred]
|
||||
result = NegotiatedTransport(
|
||||
transport=interface.transport,
|
||||
url=interface.url,
|
||||
source="server_preferred",
|
||||
)
|
||||
else:
|
||||
for transport in client_transports:
|
||||
if transport in transport_to_interface:
|
||||
interface = transport_to_interface[transport]
|
||||
result = NegotiatedTransport(
|
||||
transport=interface.transport,
|
||||
url=interface.url,
|
||||
source="fallback",
|
||||
)
|
||||
break
|
||||
|
||||
if result is None:
|
||||
raise TransportNegotiationError(
|
||||
client_transports=client_transports,
|
||||
server_transports=server_transports,
|
||||
)
|
||||
|
||||
if emit_event:
|
||||
crewai_event_bus.emit(
|
||||
None,
|
||||
A2ATransportNegotiatedEvent(
|
||||
endpoint=endpoint or agent_card.url,
|
||||
a2a_agent_name=a2a_agent_name or agent_card.name,
|
||||
negotiated_transport=result.transport,
|
||||
negotiated_url=result.url,
|
||||
source=result.source,
|
||||
client_supported_transports=client_transports,
|
||||
server_supported_transports=server_transports,
|
||||
server_preferred_transport=agent_card.preferred_transport
|
||||
or JSONRPC_TRANSPORT,
|
||||
client_preferred_transport=client_preferred,
|
||||
),
|
||||
)
|
||||
|
||||
return result
|
||||
File diff suppressed because it is too large
Load Diff
@@ -94,12 +94,6 @@ from crewai.utilities.token_counter_callback import TokenCalcHandler
|
||||
from crewai.utilities.training_handler import CrewTrainingHandler
|
||||
|
||||
|
||||
try:
|
||||
from crewai.a2a.types import AgentResponseProtocol
|
||||
except ImportError:
|
||||
AgentResponseProtocol = None # type: ignore[assignment, misc]
|
||||
|
||||
|
||||
if TYPE_CHECKING:
|
||||
from crewai_files import FileInput
|
||||
from crewai_tools import CodeInterpreterTool
|
||||
@@ -496,22 +490,9 @@ class Agent(BaseAgent):
|
||||
self._rpm_controller.stop_rpm_counter()
|
||||
|
||||
result = process_tool_results(self, result)
|
||||
|
||||
output_for_event = result
|
||||
if (
|
||||
AgentResponseProtocol is not None
|
||||
and isinstance(result, BaseModel)
|
||||
and isinstance(result, AgentResponseProtocol)
|
||||
):
|
||||
output_for_event = str(result.message)
|
||||
elif not isinstance(result, str):
|
||||
output_for_event = str(result)
|
||||
|
||||
crewai_event_bus.emit(
|
||||
self,
|
||||
event=AgentExecutionCompletedEvent(
|
||||
agent=self, task=task, output=output_for_event
|
||||
),
|
||||
event=AgentExecutionCompletedEvent(agent=self, task=task, output=result),
|
||||
)
|
||||
|
||||
save_last_messages(self)
|
||||
@@ -728,22 +709,9 @@ class Agent(BaseAgent):
|
||||
self._rpm_controller.stop_rpm_counter()
|
||||
|
||||
result = process_tool_results(self, result)
|
||||
|
||||
output_for_event = result
|
||||
if (
|
||||
AgentResponseProtocol is not None
|
||||
and isinstance(result, BaseModel)
|
||||
and isinstance(result, AgentResponseProtocol)
|
||||
):
|
||||
output_for_event = str(result.message)
|
||||
elif not isinstance(result, str):
|
||||
output_for_event = str(result)
|
||||
|
||||
crewai_event_bus.emit(
|
||||
self,
|
||||
event=AgentExecutionCompletedEvent(
|
||||
agent=self, task=task, output=output_for_event
|
||||
),
|
||||
event=AgentExecutionCompletedEvent(agent=self, task=task, output=result),
|
||||
)
|
||||
|
||||
save_last_messages(self)
|
||||
@@ -1890,17 +1858,11 @@ class Agent(BaseAgent):
|
||||
|
||||
# Execute the agent (this is called from sync path, so invoke returns dict)
|
||||
result = cast(dict[str, Any], executor.invoke(inputs))
|
||||
output = result.get("output", "")
|
||||
raw_output = result.get("output", "")
|
||||
|
||||
# Handle response format conversion
|
||||
formatted_result: BaseModel | None = None
|
||||
raw_output: str
|
||||
|
||||
if isinstance(output, BaseModel):
|
||||
formatted_result = output
|
||||
raw_output = output.model_dump_json()
|
||||
elif response_format:
|
||||
raw_output = str(output) if not isinstance(output, str) else output
|
||||
if response_format:
|
||||
try:
|
||||
model_schema = generate_model_description(response_format)
|
||||
schema = json.dumps(model_schema, indent=2)
|
||||
@@ -1920,8 +1882,6 @@ class Agent(BaseAgent):
|
||||
formatted_result = conversion_result
|
||||
except ConverterError:
|
||||
pass # Keep raw output if conversion fails
|
||||
else:
|
||||
raw_output = str(output) if not isinstance(output, str) else output
|
||||
|
||||
# Get token usage metrics
|
||||
if isinstance(self.llm, BaseLLM):
|
||||
@@ -1929,16 +1889,8 @@ class Agent(BaseAgent):
|
||||
else:
|
||||
usage_metrics = self._token_process.get_summary()
|
||||
|
||||
raw_str = (
|
||||
raw_output
|
||||
if isinstance(raw_output, str)
|
||||
else raw_output.model_dump_json()
|
||||
if isinstance(raw_output, BaseModel)
|
||||
else str(raw_output)
|
||||
)
|
||||
|
||||
return LiteAgentOutput(
|
||||
raw=raw_str,
|
||||
raw=raw_output,
|
||||
pydantic=formatted_result,
|
||||
agent_role=self.role,
|
||||
usage_metrics=usage_metrics.model_dump() if usage_metrics else None,
|
||||
@@ -1968,17 +1920,11 @@ class Agent(BaseAgent):
|
||||
|
||||
# Execute the agent asynchronously
|
||||
result = await executor.invoke_async(inputs)
|
||||
output = result.get("output", "")
|
||||
raw_output = result.get("output", "")
|
||||
|
||||
# Handle response format conversion
|
||||
formatted_result: BaseModel | None = None
|
||||
raw_output: str
|
||||
|
||||
if isinstance(output, BaseModel):
|
||||
formatted_result = output
|
||||
raw_output = output.model_dump_json()
|
||||
elif response_format:
|
||||
raw_output = str(output) if not isinstance(output, str) else output
|
||||
if response_format:
|
||||
try:
|
||||
model_schema = generate_model_description(response_format)
|
||||
schema = json.dumps(model_schema, indent=2)
|
||||
@@ -1998,8 +1944,6 @@ class Agent(BaseAgent):
|
||||
formatted_result = conversion_result
|
||||
except ConverterError:
|
||||
pass # Keep raw output if conversion fails
|
||||
else:
|
||||
raw_output = str(output) if not isinstance(output, str) else output
|
||||
|
||||
# Get token usage metrics
|
||||
if isinstance(self.llm, BaseLLM):
|
||||
@@ -2007,16 +1951,8 @@ class Agent(BaseAgent):
|
||||
else:
|
||||
usage_metrics = self._token_process.get_summary()
|
||||
|
||||
raw_str = (
|
||||
raw_output
|
||||
if isinstance(raw_output, str)
|
||||
else raw_output.model_dump_json()
|
||||
if isinstance(raw_output, BaseModel)
|
||||
else str(raw_output)
|
||||
)
|
||||
|
||||
return LiteAgentOutput(
|
||||
raw=raw_str,
|
||||
raw=raw_output,
|
||||
pydantic=formatted_result,
|
||||
agent_role=self.role,
|
||||
usage_metrics=usage_metrics.model_dump() if usage_metrics else None,
|
||||
|
||||
@@ -930,6 +930,10 @@ class CrewAgentExecutor(CrewAgentExecutorMixin):
|
||||
"name": func_name,
|
||||
"content": result,
|
||||
}
|
||||
|
||||
if after_hook_context.files:
|
||||
tool_message["files"] = after_hook_context.files
|
||||
|
||||
self.messages.append(tool_message)
|
||||
|
||||
# Log the tool execution
|
||||
|
||||
@@ -5,7 +5,7 @@ description = "{{name}} using crewAI"
|
||||
authors = [{ name = "Your Name", email = "you@example.com" }]
|
||||
requires-python = ">=3.10,<3.14"
|
||||
dependencies = [
|
||||
"crewai[tools]==1.9.3"
|
||||
"crewai[tools]==1.9.2"
|
||||
]
|
||||
|
||||
[project.scripts]
|
||||
|
||||
@@ -5,7 +5,7 @@ description = "{{name}} using crewAI"
|
||||
authors = [{ name = "Your Name", email = "you@example.com" }]
|
||||
requires-python = ">=3.10,<3.14"
|
||||
dependencies = [
|
||||
"crewai[tools]==1.9.3"
|
||||
"crewai[tools]==1.9.2"
|
||||
]
|
||||
|
||||
[project.scripts]
|
||||
|
||||
@@ -654,165 +654,3 @@ class A2AParallelDelegationCompletedEvent(A2AEventBase):
|
||||
success_count: int
|
||||
failure_count: int
|
||||
results: dict[str, str] | None = None
|
||||
|
||||
|
||||
class A2ATransportNegotiatedEvent(A2AEventBase):
|
||||
"""Event emitted when transport protocol is negotiated with an A2A agent.
|
||||
|
||||
This event is emitted after comparing client and server transport capabilities
|
||||
to select the optimal transport protocol and endpoint URL.
|
||||
|
||||
Attributes:
|
||||
endpoint: Original A2A agent endpoint URL.
|
||||
a2a_agent_name: Name of the A2A agent from agent card.
|
||||
negotiated_transport: The transport protocol selected (JSONRPC, GRPC, HTTP+JSON).
|
||||
negotiated_url: The URL to use for the selected transport.
|
||||
source: How the transport was selected ('client_preferred', 'server_preferred', 'fallback').
|
||||
client_supported_transports: Transports the client can use.
|
||||
server_supported_transports: Transports the server supports.
|
||||
server_preferred_transport: The server's preferred transport from AgentCard.
|
||||
client_preferred_transport: The client's preferred transport if set.
|
||||
metadata: Custom A2A metadata key-value pairs.
|
||||
"""
|
||||
|
||||
type: str = "a2a_transport_negotiated"
|
||||
endpoint: str
|
||||
a2a_agent_name: str | None = None
|
||||
negotiated_transport: str
|
||||
negotiated_url: str
|
||||
source: str
|
||||
client_supported_transports: list[str]
|
||||
server_supported_transports: list[str]
|
||||
server_preferred_transport: str
|
||||
client_preferred_transport: str | None = None
|
||||
metadata: dict[str, Any] | None = None
|
||||
|
||||
|
||||
class A2AContentTypeNegotiatedEvent(A2AEventBase):
|
||||
"""Event emitted when content types are negotiated with an A2A agent.
|
||||
|
||||
This event is emitted after comparing client and server input/output mode
|
||||
capabilities to determine compatible MIME types for communication.
|
||||
|
||||
Attributes:
|
||||
endpoint: A2A agent endpoint URL.
|
||||
a2a_agent_name: Name of the A2A agent from agent card.
|
||||
skill_name: Skill name if negotiation was skill-specific.
|
||||
client_input_modes: MIME types the client can send.
|
||||
client_output_modes: MIME types the client can accept.
|
||||
server_input_modes: MIME types the server accepts.
|
||||
server_output_modes: MIME types the server produces.
|
||||
negotiated_input_modes: Compatible input MIME types selected.
|
||||
negotiated_output_modes: Compatible output MIME types selected.
|
||||
negotiation_success: Whether compatible types were found for both directions.
|
||||
metadata: Custom A2A metadata key-value pairs.
|
||||
"""
|
||||
|
||||
type: str = "a2a_content_type_negotiated"
|
||||
endpoint: str
|
||||
a2a_agent_name: str | None = None
|
||||
skill_name: str | None = None
|
||||
client_input_modes: list[str]
|
||||
client_output_modes: list[str]
|
||||
server_input_modes: list[str]
|
||||
server_output_modes: list[str]
|
||||
negotiated_input_modes: list[str]
|
||||
negotiated_output_modes: list[str]
|
||||
negotiation_success: bool = True
|
||||
metadata: dict[str, Any] | None = None
|
||||
|
||||
|
||||
# -----------------------------------------------------------------------------
|
||||
# Context Lifecycle Events
|
||||
# -----------------------------------------------------------------------------
|
||||
|
||||
|
||||
class A2AContextCreatedEvent(A2AEventBase):
|
||||
"""Event emitted when an A2A context is created.
|
||||
|
||||
Contexts group related tasks in a conversation or workflow.
|
||||
|
||||
Attributes:
|
||||
context_id: Unique identifier for the context.
|
||||
created_at: Unix timestamp when context was created.
|
||||
metadata: Custom A2A metadata key-value pairs.
|
||||
"""
|
||||
|
||||
type: str = "a2a_context_created"
|
||||
context_id: str
|
||||
created_at: float
|
||||
metadata: dict[str, Any] | None = None
|
||||
|
||||
|
||||
class A2AContextExpiredEvent(A2AEventBase):
|
||||
"""Event emitted when an A2A context expires due to TTL.
|
||||
|
||||
Attributes:
|
||||
context_id: The expired context identifier.
|
||||
created_at: Unix timestamp when context was created.
|
||||
age_seconds: How long the context existed before expiring.
|
||||
task_count: Number of tasks in the context when expired.
|
||||
metadata: Custom A2A metadata key-value pairs.
|
||||
"""
|
||||
|
||||
type: str = "a2a_context_expired"
|
||||
context_id: str
|
||||
created_at: float
|
||||
age_seconds: float
|
||||
task_count: int
|
||||
metadata: dict[str, Any] | None = None
|
||||
|
||||
|
||||
class A2AContextIdleEvent(A2AEventBase):
|
||||
"""Event emitted when an A2A context becomes idle.
|
||||
|
||||
Idle contexts have had no activity for the configured threshold.
|
||||
|
||||
Attributes:
|
||||
context_id: The idle context identifier.
|
||||
idle_seconds: Seconds since last activity.
|
||||
task_count: Number of tasks in the context.
|
||||
metadata: Custom A2A metadata key-value pairs.
|
||||
"""
|
||||
|
||||
type: str = "a2a_context_idle"
|
||||
context_id: str
|
||||
idle_seconds: float
|
||||
task_count: int
|
||||
metadata: dict[str, Any] | None = None
|
||||
|
||||
|
||||
class A2AContextCompletedEvent(A2AEventBase):
|
||||
"""Event emitted when all tasks in an A2A context complete.
|
||||
|
||||
Attributes:
|
||||
context_id: The completed context identifier.
|
||||
total_tasks: Total number of tasks that were in the context.
|
||||
duration_seconds: Total context lifetime in seconds.
|
||||
metadata: Custom A2A metadata key-value pairs.
|
||||
"""
|
||||
|
||||
type: str = "a2a_context_completed"
|
||||
context_id: str
|
||||
total_tasks: int
|
||||
duration_seconds: float
|
||||
metadata: dict[str, Any] | None = None
|
||||
|
||||
|
||||
class A2AContextPrunedEvent(A2AEventBase):
|
||||
"""Event emitted when an A2A context is pruned (deleted).
|
||||
|
||||
Pruning removes the context metadata and optionally associated tasks.
|
||||
|
||||
Attributes:
|
||||
context_id: The pruned context identifier.
|
||||
task_count: Number of tasks that were in the context.
|
||||
age_seconds: How long the context existed before pruning.
|
||||
metadata: Custom A2A metadata key-value pairs.
|
||||
"""
|
||||
|
||||
type: str = "a2a_context_pruned"
|
||||
context_id: str
|
||||
task_count: int
|
||||
age_seconds: float
|
||||
metadata: dict[str, Any] | None = None
|
||||
|
||||
@@ -365,20 +365,11 @@ class AgentExecutor(Flow[AgentReActState], CrewAgentExecutorMixin):
|
||||
printer=self._printer,
|
||||
from_task=self.task,
|
||||
from_agent=self.agent,
|
||||
response_model=self.response_model,
|
||||
response_model=None,
|
||||
executor_context=self,
|
||||
verbose=self.agent.verbose,
|
||||
)
|
||||
|
||||
# If response is structured output (BaseModel), store it directly
|
||||
if isinstance(answer, BaseModel):
|
||||
self.state.current_answer = AgentFinish(
|
||||
thought="",
|
||||
output=answer,
|
||||
text=str(answer),
|
||||
)
|
||||
return "parsed"
|
||||
|
||||
# Parse the LLM response
|
||||
formatted_answer = process_llm_response(answer, self.use_stop_words)
|
||||
|
||||
@@ -445,7 +436,7 @@ class AgentExecutor(Flow[AgentReActState], CrewAgentExecutorMixin):
|
||||
available_functions=None,
|
||||
from_task=self.task,
|
||||
from_agent=self.agent,
|
||||
response_model=self.response_model,
|
||||
response_model=None,
|
||||
executor_context=self,
|
||||
verbose=self.agent.verbose,
|
||||
)
|
||||
@@ -457,16 +448,6 @@ class AgentExecutor(Flow[AgentReActState], CrewAgentExecutorMixin):
|
||||
|
||||
return "native_tool_calls"
|
||||
|
||||
if isinstance(answer, BaseModel):
|
||||
self.state.current_answer = AgentFinish(
|
||||
thought="",
|
||||
output=answer,
|
||||
text=answer.model_dump_json(),
|
||||
)
|
||||
self._invoke_step_callback(self.state.current_answer)
|
||||
self._append_message_to_state(answer.model_dump_json())
|
||||
return "native_finished"
|
||||
|
||||
# Text response - this is the final answer
|
||||
if isinstance(answer, str):
|
||||
self.state.current_answer = AgentFinish(
|
||||
@@ -814,6 +795,10 @@ class AgentExecutor(Flow[AgentReActState], CrewAgentExecutorMixin):
|
||||
"name": func_name,
|
||||
"content": result,
|
||||
}
|
||||
|
||||
if after_hook_context.files:
|
||||
tool_message["files"] = after_hook_context.files
|
||||
|
||||
self.state.messages.append(tool_message)
|
||||
|
||||
# Log the tool execution
|
||||
@@ -1319,12 +1304,7 @@ class AgentExecutor(Flow[AgentReActState], CrewAgentExecutorMixin):
|
||||
Returns:
|
||||
Final answer after feedback.
|
||||
"""
|
||||
output_str = (
|
||||
str(formatted_answer.output)
|
||||
if isinstance(formatted_answer.output, BaseModel)
|
||||
else formatted_answer.output
|
||||
)
|
||||
human_feedback = self._ask_human_input(output_str)
|
||||
human_feedback = self._ask_human_input(formatted_answer.output)
|
||||
|
||||
if self._is_training_mode():
|
||||
return self._handle_training_feedback(formatted_answer, human_feedback)
|
||||
@@ -1396,12 +1376,7 @@ class AgentExecutor(Flow[AgentReActState], CrewAgentExecutorMixin):
|
||||
self.state.ask_for_human_input = False
|
||||
else:
|
||||
answer = self._process_feedback_iteration(feedback)
|
||||
output_str = (
|
||||
str(answer.output)
|
||||
if isinstance(answer.output, BaseModel)
|
||||
else answer.output
|
||||
)
|
||||
feedback = self._ask_human_input(output_str)
|
||||
feedback = self._ask_human_input(answer.output)
|
||||
|
||||
return answer
|
||||
|
||||
|
||||
@@ -5,6 +5,7 @@ from typing import TYPE_CHECKING, Any
|
||||
from crewai.events.event_listener import event_listener
|
||||
from crewai.hooks.types import AfterToolCallHookType, BeforeToolCallHookType
|
||||
from crewai.utilities.printer import Printer
|
||||
from crewai.utilities.types import FileInput
|
||||
|
||||
|
||||
if TYPE_CHECKING:
|
||||
@@ -34,6 +35,9 @@ class ToolCallHookContext:
|
||||
crew: Crew instance (may be None)
|
||||
tool_result: Tool execution result (only set for after_tool_call hooks).
|
||||
Can be modified by returning a new string from after_tool_call hook.
|
||||
files: Optional dictionary of files to attach to the tool message.
|
||||
Can be set by after_tool_call hooks to inject files into the LLM context.
|
||||
These files will be formatted according to the LLM provider's requirements.
|
||||
"""
|
||||
|
||||
def __init__(
|
||||
@@ -64,6 +68,7 @@ class ToolCallHookContext:
|
||||
self.task = task
|
||||
self.crew = crew
|
||||
self.tool_result = tool_result
|
||||
self.files: dict[str, FileInput] | None = None
|
||||
|
||||
def request_human_input(
|
||||
self,
|
||||
|
||||
@@ -2,10 +2,8 @@ from __future__ import annotations
|
||||
|
||||
import asyncio
|
||||
from collections.abc import Callable
|
||||
from functools import wraps
|
||||
import inspect
|
||||
import json
|
||||
from types import MethodType
|
||||
from typing import (
|
||||
TYPE_CHECKING,
|
||||
Any,
|
||||
@@ -32,8 +30,6 @@ from typing_extensions import Self
|
||||
if TYPE_CHECKING:
|
||||
from crewai_files import FileInput
|
||||
|
||||
from crewai.a2a.config import A2AClientConfig, A2AConfig, A2AServerConfig
|
||||
|
||||
from crewai.agents.agent_builder.base_agent import BaseAgent
|
||||
from crewai.agents.agent_builder.utilities.base_token_process import TokenProcess
|
||||
from crewai.agents.cache.cache_handler import CacheHandler
|
||||
@@ -88,81 +84,6 @@ from crewai.utilities.tool_utils import execute_tool_and_check_finality
|
||||
from crewai.utilities.types import LLMMessage
|
||||
|
||||
|
||||
def _kickoff_with_a2a_support(
|
||||
agent: LiteAgent,
|
||||
original_kickoff: Callable[..., LiteAgentOutput],
|
||||
messages: str | list[LLMMessage],
|
||||
response_format: type[BaseModel] | None,
|
||||
input_files: dict[str, FileInput] | None,
|
||||
extension_registry: Any,
|
||||
) -> LiteAgentOutput:
|
||||
"""Wrap kickoff with A2A delegation using Task adapter.
|
||||
|
||||
Args:
|
||||
agent: The LiteAgent instance.
|
||||
original_kickoff: The original kickoff method.
|
||||
messages: Input messages.
|
||||
response_format: Optional response format.
|
||||
input_files: Optional input files.
|
||||
extension_registry: A2A extension registry.
|
||||
|
||||
Returns:
|
||||
LiteAgentOutput from either local execution or A2A delegation.
|
||||
"""
|
||||
from crewai.a2a.utils.response_model import get_a2a_agents_and_response_model
|
||||
from crewai.a2a.wrapper import _execute_task_with_a2a
|
||||
from crewai.task import Task
|
||||
|
||||
a2a_agents, agent_response_model = get_a2a_agents_and_response_model(agent.a2a)
|
||||
|
||||
if not a2a_agents:
|
||||
return original_kickoff(messages, response_format, input_files)
|
||||
|
||||
if isinstance(messages, str):
|
||||
description = messages
|
||||
else:
|
||||
content = next(
|
||||
(m["content"] for m in reversed(messages) if m["role"] == "user"),
|
||||
None,
|
||||
)
|
||||
description = content if isinstance(content, str) else ""
|
||||
|
||||
if not description:
|
||||
return original_kickoff(messages, response_format, input_files)
|
||||
|
||||
fake_task = Task(
|
||||
description=description,
|
||||
agent=agent,
|
||||
expected_output="Result from A2A delegation",
|
||||
input_files=input_files or {},
|
||||
)
|
||||
|
||||
def task_to_kickoff_adapter(
|
||||
self: Any, task: Task, context: str | None, tools: list[Any] | None
|
||||
) -> str:
|
||||
result = original_kickoff(messages, response_format, input_files)
|
||||
return result.raw
|
||||
|
||||
result_str = _execute_task_with_a2a(
|
||||
self=agent, # type: ignore[arg-type]
|
||||
a2a_agents=a2a_agents,
|
||||
original_fn=task_to_kickoff_adapter,
|
||||
task=fake_task,
|
||||
agent_response_model=agent_response_model,
|
||||
context=None,
|
||||
tools=None,
|
||||
extension_registry=extension_registry,
|
||||
)
|
||||
|
||||
return LiteAgentOutput(
|
||||
raw=result_str,
|
||||
pydantic=None,
|
||||
agent_role=agent.role,
|
||||
usage_metrics=None,
|
||||
messages=[],
|
||||
)
|
||||
|
||||
|
||||
class LiteAgent(FlowTrackable, BaseModel):
|
||||
"""
|
||||
A lightweight agent that can process messages and use tools.
|
||||
@@ -233,17 +154,6 @@ class LiteAgent(FlowTrackable, BaseModel):
|
||||
guardrail_max_retries: int = Field(
|
||||
default=3, description="Maximum number of retries when guardrail fails"
|
||||
)
|
||||
a2a: (
|
||||
list[A2AConfig | A2AServerConfig | A2AClientConfig]
|
||||
| A2AConfig
|
||||
| A2AServerConfig
|
||||
| A2AClientConfig
|
||||
| None
|
||||
) = Field(
|
||||
default=None,
|
||||
description="A2A (Agent-to-Agent) configuration for delegating tasks to remote agents. "
|
||||
"Can be a single A2AConfig/A2AClientConfig/A2AServerConfig, or a list of configurations.",
|
||||
)
|
||||
tools_results: list[dict[str, Any]] = Field(
|
||||
default_factory=list, description="Results of the tools used by the agent."
|
||||
)
|
||||
@@ -299,52 +209,6 @@ class LiteAgent(FlowTrackable, BaseModel):
|
||||
|
||||
return self
|
||||
|
||||
@model_validator(mode="after")
|
||||
def setup_a2a_support(self) -> Self:
|
||||
"""Setup A2A extensions and server methods if a2a config exists."""
|
||||
if self.a2a:
|
||||
from crewai.a2a.config import A2AClientConfig, A2AConfig
|
||||
from crewai.a2a.extensions.registry import (
|
||||
create_extension_registry_from_config,
|
||||
)
|
||||
from crewai.a2a.utils.agent_card import inject_a2a_server_methods
|
||||
|
||||
configs = self.a2a if isinstance(self.a2a, list) else [self.a2a]
|
||||
client_configs = [
|
||||
config
|
||||
for config in configs
|
||||
if isinstance(config, (A2AConfig, A2AClientConfig))
|
||||
]
|
||||
|
||||
extension_registry = (
|
||||
create_extension_registry_from_config(client_configs)
|
||||
if client_configs
|
||||
else create_extension_registry_from_config([])
|
||||
)
|
||||
extension_registry.inject_all_tools(self) # type: ignore[arg-type]
|
||||
inject_a2a_server_methods(self) # type: ignore[arg-type]
|
||||
|
||||
original_kickoff = self.kickoff
|
||||
|
||||
@wraps(original_kickoff)
|
||||
def kickoff_with_a2a(
|
||||
messages: str | list[LLMMessage],
|
||||
response_format: type[BaseModel] | None = None,
|
||||
input_files: dict[str, FileInput] | None = None,
|
||||
) -> LiteAgentOutput:
|
||||
return _kickoff_with_a2a_support(
|
||||
self,
|
||||
original_kickoff,
|
||||
messages,
|
||||
response_format,
|
||||
input_files,
|
||||
extension_registry,
|
||||
)
|
||||
|
||||
object.__setattr__(self, "kickoff", MethodType(kickoff_with_a2a, self))
|
||||
|
||||
return self
|
||||
|
||||
@model_validator(mode="after")
|
||||
def ensure_guardrail_is_callable(self) -> Self:
|
||||
if callable(self.guardrail):
|
||||
@@ -762,9 +626,7 @@ class LiteAgent(FlowTrackable, BaseModel):
|
||||
except Exception as e:
|
||||
raise e
|
||||
|
||||
formatted_answer = process_llm_response(
|
||||
cast(str, answer), self.use_stop_words
|
||||
)
|
||||
formatted_answer = process_llm_response(answer, self.use_stop_words)
|
||||
|
||||
if isinstance(formatted_answer, AgentAction):
|
||||
try:
|
||||
@@ -847,21 +709,3 @@ class LiteAgent(FlowTrackable, BaseModel):
|
||||
) -> None:
|
||||
"""Append a message to the message list with the given role."""
|
||||
self._messages.append(format_message_for_llm(text, role=role))
|
||||
|
||||
|
||||
try:
|
||||
from crewai.a2a.config import (
|
||||
A2AClientConfig as _A2AClientConfig,
|
||||
A2AConfig as _A2AConfig,
|
||||
A2AServerConfig as _A2AServerConfig,
|
||||
)
|
||||
|
||||
LiteAgent.model_rebuild(
|
||||
_types_namespace={
|
||||
"A2AConfig": _A2AConfig,
|
||||
"A2AClientConfig": _A2AClientConfig,
|
||||
"A2AServerConfig": _A2AServerConfig,
|
||||
}
|
||||
)
|
||||
except ImportError:
|
||||
pass
|
||||
|
||||
@@ -23,7 +23,7 @@ if TYPE_CHECKING:
|
||||
try:
|
||||
from anthropic import Anthropic, AsyncAnthropic, transform_schema
|
||||
from anthropic.types import Message, TextBlock, ThinkingBlock, ToolUseBlock
|
||||
from anthropic.types.beta import BetaMessage, BetaTextBlock, BetaToolUseBlock
|
||||
from anthropic.types.beta import BetaMessage, BetaTextBlock
|
||||
import httpx
|
||||
except ImportError:
|
||||
raise ImportError(
|
||||
@@ -691,7 +691,7 @@ class AnthropicCompletion(BaseLLM):
|
||||
else:
|
||||
for block in response.content:
|
||||
if (
|
||||
isinstance(block, (ToolUseBlock, BetaToolUseBlock))
|
||||
isinstance(block, ToolUseBlock)
|
||||
and block.name == "structured_output"
|
||||
):
|
||||
structured_data = response_model.model_validate(block.input)
|
||||
@@ -707,9 +707,7 @@ class AnthropicCompletion(BaseLLM):
|
||||
# Check if Claude wants to use tools
|
||||
if response.content:
|
||||
tool_uses = [
|
||||
block
|
||||
for block in response.content
|
||||
if isinstance(block, (ToolUseBlock, BetaToolUseBlock))
|
||||
block for block in response.content if isinstance(block, ToolUseBlock)
|
||||
]
|
||||
|
||||
if tool_uses:
|
||||
@@ -928,7 +926,7 @@ class AnthropicCompletion(BaseLLM):
|
||||
tool_uses = [
|
||||
block
|
||||
for block in final_message.content
|
||||
if isinstance(block, (ToolUseBlock, BetaToolUseBlock))
|
||||
if isinstance(block, ToolUseBlock)
|
||||
]
|
||||
|
||||
if tool_uses:
|
||||
@@ -960,7 +958,7 @@ class AnthropicCompletion(BaseLLM):
|
||||
|
||||
def _execute_tools_and_collect_results(
|
||||
self,
|
||||
tool_uses: list[ToolUseBlock | BetaToolUseBlock],
|
||||
tool_uses: list[ToolUseBlock],
|
||||
available_functions: dict[str, Any],
|
||||
from_task: Any | None = None,
|
||||
from_agent: Any | None = None,
|
||||
@@ -968,7 +966,7 @@ class AnthropicCompletion(BaseLLM):
|
||||
"""Execute tools and collect results in Anthropic format.
|
||||
|
||||
Args:
|
||||
tool_uses: List of tool use blocks from Claude's response (regular or beta API)
|
||||
tool_uses: List of tool use blocks from Claude's response
|
||||
available_functions: Available functions for tool calling
|
||||
from_task: Task that initiated the call
|
||||
from_agent: Agent that initiated the call
|
||||
@@ -1004,7 +1002,7 @@ class AnthropicCompletion(BaseLLM):
|
||||
def _handle_tool_use_conversation(
|
||||
self,
|
||||
initial_response: Message | BetaMessage,
|
||||
tool_uses: list[ToolUseBlock | BetaToolUseBlock],
|
||||
tool_uses: list[ToolUseBlock],
|
||||
params: dict[str, Any],
|
||||
available_functions: dict[str, Any],
|
||||
from_task: Any | None = None,
|
||||
@@ -1196,12 +1194,9 @@ class AnthropicCompletion(BaseLLM):
|
||||
)
|
||||
return structured_data
|
||||
|
||||
# Handle both ToolUseBlock (regular API) and BetaToolUseBlock (beta API features)
|
||||
if response.content:
|
||||
tool_uses = [
|
||||
block
|
||||
for block in response.content
|
||||
if isinstance(block, (ToolUseBlock, BetaToolUseBlock))
|
||||
block for block in response.content if isinstance(block, ToolUseBlock)
|
||||
]
|
||||
|
||||
if tool_uses:
|
||||
@@ -1397,7 +1392,7 @@ class AnthropicCompletion(BaseLLM):
|
||||
tool_uses = [
|
||||
block
|
||||
for block in final_message.content
|
||||
if isinstance(block, (ToolUseBlock, BetaToolUseBlock))
|
||||
if isinstance(block, ToolUseBlock)
|
||||
]
|
||||
|
||||
if tool_uses:
|
||||
@@ -1428,7 +1423,7 @@ class AnthropicCompletion(BaseLLM):
|
||||
async def _ahandle_tool_use_conversation(
|
||||
self,
|
||||
initial_response: Message | BetaMessage,
|
||||
tool_uses: list[ToolUseBlock | BetaToolUseBlock],
|
||||
tool_uses: list[ToolUseBlock],
|
||||
params: dict[str, Any],
|
||||
available_functions: dict[str, Any],
|
||||
from_task: Any | None = None,
|
||||
|
||||
@@ -622,6 +622,16 @@ class AzureCompletion(BaseLLM):
|
||||
usage = self._extract_azure_token_usage(response)
|
||||
self._track_token_usage_internal(usage)
|
||||
|
||||
if response_model and self.is_openai_model:
|
||||
content = message.content or ""
|
||||
return self._validate_and_emit_structured_output(
|
||||
content=content,
|
||||
response_model=response_model,
|
||||
params=params,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
)
|
||||
|
||||
# If there are tool_calls but no available_functions, return the tool_calls
|
||||
# This allows the caller (e.g., executor) to handle tool execution
|
||||
if message.tool_calls and not available_functions:
|
||||
@@ -661,15 +671,7 @@ class AzureCompletion(BaseLLM):
|
||||
# Extract content
|
||||
content = message.content or ""
|
||||
|
||||
if response_model and self.is_openai_model:
|
||||
return self._validate_and_emit_structured_output(
|
||||
content=content,
|
||||
response_model=response_model,
|
||||
params=params,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
)
|
||||
|
||||
# Apply stop words
|
||||
content = self._apply_stop_words(content)
|
||||
|
||||
# Emit completion event and return content
|
||||
|
||||
@@ -45,78 +45,6 @@ except ImportError:
|
||||
'AWS Bedrock native provider not available, to install: uv add "crewai[bedrock]"'
|
||||
) from None
|
||||
|
||||
|
||||
STRUCTURED_OUTPUT_TOOL_NAME = "structured_output"
|
||||
|
||||
|
||||
def _preprocess_structured_data(
|
||||
data: dict[str, Any], response_model: type[BaseModel]
|
||||
) -> dict[str, Any]:
|
||||
"""Preprocess structured data to handle common LLM output format issues.
|
||||
|
||||
Some models (especially Claude on Bedrock) may return array fields as
|
||||
markdown-formatted strings instead of proper JSON arrays. This function
|
||||
attempts to convert such strings to arrays before validation.
|
||||
|
||||
Args:
|
||||
data: The raw structured data from the tool response
|
||||
response_model: The Pydantic model class to validate against
|
||||
|
||||
Returns:
|
||||
Preprocessed data with string-to-array conversions where needed
|
||||
"""
|
||||
import re
|
||||
from typing import get_origin
|
||||
|
||||
# Get model field annotations
|
||||
model_fields = response_model.model_fields
|
||||
|
||||
processed_data = dict(data)
|
||||
|
||||
for field_name, field_info in model_fields.items():
|
||||
if field_name not in processed_data:
|
||||
continue
|
||||
|
||||
value = processed_data[field_name]
|
||||
|
||||
# Check if the field expects a list type
|
||||
annotation = field_info.annotation
|
||||
origin = get_origin(annotation)
|
||||
|
||||
# Handle list[X] or List[X] types
|
||||
is_list_type = origin is list or (
|
||||
origin is not None and str(origin).startswith("list")
|
||||
)
|
||||
|
||||
if is_list_type and isinstance(value, str):
|
||||
# Try to parse markdown-style bullet points or numbered lists
|
||||
lines = value.strip().split("\n")
|
||||
parsed_items = []
|
||||
|
||||
for line in lines:
|
||||
line = line.strip()
|
||||
if not line:
|
||||
continue
|
||||
|
||||
# Remove common bullet point prefixes
|
||||
# Matches: "- item", "* item", "• item", "1. item", "1) item"
|
||||
cleaned = re.sub(r"^[-*•]\s*", "", line)
|
||||
cleaned = re.sub(r"^\d+[.)]\s*", "", cleaned)
|
||||
cleaned = cleaned.strip()
|
||||
|
||||
if cleaned:
|
||||
parsed_items.append(cleaned)
|
||||
|
||||
if parsed_items:
|
||||
processed_data[field_name] = parsed_items
|
||||
logging.debug(
|
||||
f"Converted markdown-formatted string to list for field '{field_name}': "
|
||||
f"{len(parsed_items)} items"
|
||||
)
|
||||
|
||||
return processed_data
|
||||
|
||||
|
||||
try:
|
||||
from aiobotocore.session import ( # type: ignore[import-untyped]
|
||||
get_session as get_aiobotocore_session,
|
||||
@@ -617,56 +545,27 @@ class BedrockCompletion(BaseLLM):
|
||||
) -> str | Any:
|
||||
"""Handle non-streaming converse API call following AWS best practices."""
|
||||
if response_model:
|
||||
# Check if structured_output tool already exists (from a previous recursive call)
|
||||
existing_tool_config = body.get("toolConfig")
|
||||
existing_tools: list[Any] = []
|
||||
structured_output_already_exists = False
|
||||
|
||||
if existing_tool_config:
|
||||
existing_tools = list(existing_tool_config.get("tools", []))
|
||||
for tool in existing_tools:
|
||||
tool_spec = tool.get("toolSpec", {})
|
||||
if tool_spec.get("name") == STRUCTURED_OUTPUT_TOOL_NAME:
|
||||
structured_output_already_exists = True
|
||||
break
|
||||
|
||||
if not structured_output_already_exists:
|
||||
structured_tool: ConverseToolTypeDef = {
|
||||
"toolSpec": {
|
||||
"name": STRUCTURED_OUTPUT_TOOL_NAME,
|
||||
"description": (
|
||||
"Use this tool to provide your final structured response. "
|
||||
"Call this tool when you have gathered all necessary information "
|
||||
"and are ready to provide the final answer in the required format."
|
||||
),
|
||||
"inputSchema": {
|
||||
"json": generate_model_description(response_model)
|
||||
.get("json_schema", {})
|
||||
.get("schema", {})
|
||||
},
|
||||
}
|
||||
structured_tool: ConverseToolTypeDef = {
|
||||
"toolSpec": {
|
||||
"name": "structured_output",
|
||||
"description": "Returns structured data according to the schema",
|
||||
"inputSchema": {
|
||||
"json": generate_model_description(response_model)
|
||||
.get("json_schema", {})
|
||||
.get("schema", {})
|
||||
},
|
||||
}
|
||||
|
||||
if existing_tools:
|
||||
existing_tools.append(structured_tool)
|
||||
body["toolConfig"] = cast(
|
||||
"ToolConfigurationTypeDef",
|
||||
cast(object, {"tools": existing_tools}),
|
||||
)
|
||||
else:
|
||||
# No existing tools, use only structured_output with forced toolChoice
|
||||
body["toolConfig"] = cast(
|
||||
"ToolConfigurationTypeDef",
|
||||
cast(
|
||||
object,
|
||||
{
|
||||
"tools": [structured_tool],
|
||||
"toolChoice": {
|
||||
"tool": {"name": STRUCTURED_OUTPUT_TOOL_NAME}
|
||||
},
|
||||
},
|
||||
),
|
||||
)
|
||||
}
|
||||
body["toolConfig"] = cast(
|
||||
"ToolConfigurationTypeDef",
|
||||
cast(
|
||||
object,
|
||||
{
|
||||
"tools": [structured_tool],
|
||||
"toolChoice": {"tool": {"name": "structured_output"}},
|
||||
},
|
||||
),
|
||||
)
|
||||
|
||||
try:
|
||||
if not messages:
|
||||
@@ -717,46 +616,29 @@ class BedrockCompletion(BaseLLM):
|
||||
# If there are tool uses but no available_functions, return them for the executor to handle
|
||||
tool_uses = [block["toolUse"] for block in content if "toolUse" in block]
|
||||
|
||||
# Check for structured_output tool call first
|
||||
if response_model and tool_uses:
|
||||
for tool_use in tool_uses:
|
||||
if tool_use.get("name") == STRUCTURED_OUTPUT_TOOL_NAME:
|
||||
if tool_use.get("name") == "structured_output":
|
||||
structured_data = tool_use.get("input", {})
|
||||
structured_data = _preprocess_structured_data(
|
||||
structured_data, response_model
|
||||
result = response_model.model_validate(structured_data)
|
||||
self._emit_call_completed_event(
|
||||
response=result.model_dump_json(),
|
||||
call_type=LLMCallType.LLM_CALL,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
messages=messages,
|
||||
)
|
||||
try:
|
||||
result = response_model.model_validate(structured_data)
|
||||
self._emit_call_completed_event(
|
||||
response=result.model_dump_json(),
|
||||
call_type=LLMCallType.LLM_CALL,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
messages=messages,
|
||||
)
|
||||
return result
|
||||
except Exception as e:
|
||||
error_msg = (
|
||||
f"Failed to validate {STRUCTURED_OUTPUT_TOOL_NAME} tool response "
|
||||
f"with model {response_model.__name__}: {e}"
|
||||
)
|
||||
logging.error(error_msg)
|
||||
raise ValueError(error_msg) from e
|
||||
return result
|
||||
|
||||
# Filter out structured_output from tool_uses returned to executor
|
||||
non_structured_output_tool_uses = [
|
||||
tu for tu in tool_uses if tu.get("name") != STRUCTURED_OUTPUT_TOOL_NAME
|
||||
]
|
||||
|
||||
if non_structured_output_tool_uses and not available_functions:
|
||||
if tool_uses and not available_functions:
|
||||
self._emit_call_completed_event(
|
||||
response=non_structured_output_tool_uses,
|
||||
response=tool_uses,
|
||||
call_type=LLMCallType.TOOL_CALL,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
messages=messages,
|
||||
)
|
||||
return non_structured_output_tool_uses
|
||||
return tool_uses
|
||||
|
||||
# Process content blocks and handle tool use correctly
|
||||
text_content = ""
|
||||
@@ -773,9 +655,6 @@ class BedrockCompletion(BaseLLM):
|
||||
function_name = tool_use_block["name"]
|
||||
function_args = tool_use_block.get("input", {})
|
||||
|
||||
if function_name == STRUCTURED_OUTPUT_TOOL_NAME:
|
||||
continue
|
||||
|
||||
logging.debug(
|
||||
f"Tool use requested: {function_name} with ID {tool_use_id}"
|
||||
)
|
||||
@@ -812,12 +691,7 @@ class BedrockCompletion(BaseLLM):
|
||||
)
|
||||
|
||||
return self._handle_converse(
|
||||
messages,
|
||||
body,
|
||||
available_functions,
|
||||
from_task,
|
||||
from_agent,
|
||||
response_model,
|
||||
messages, body, available_functions, from_task, from_agent
|
||||
)
|
||||
|
||||
# Apply stop sequences if configured
|
||||
@@ -906,58 +780,27 @@ class BedrockCompletion(BaseLLM):
|
||||
) -> str:
|
||||
"""Handle streaming converse API call with comprehensive event handling."""
|
||||
if response_model:
|
||||
# Check if structured_output tool already exists (from a previous recursive call)
|
||||
existing_tool_config = body.get("toolConfig")
|
||||
existing_tools: list[Any] = []
|
||||
structured_output_already_exists = False
|
||||
|
||||
if existing_tool_config:
|
||||
existing_tools = list(existing_tool_config.get("tools", []))
|
||||
# Check if structured_output tool is already in the tools list
|
||||
for tool in existing_tools:
|
||||
tool_spec = tool.get("toolSpec", {})
|
||||
if tool_spec.get("name") == STRUCTURED_OUTPUT_TOOL_NAME:
|
||||
structured_output_already_exists = True
|
||||
break
|
||||
|
||||
if not structured_output_already_exists:
|
||||
structured_tool: ConverseToolTypeDef = {
|
||||
"toolSpec": {
|
||||
"name": STRUCTURED_OUTPUT_TOOL_NAME,
|
||||
"description": (
|
||||
"Use this tool to provide your final structured response. "
|
||||
"Call this tool when you have gathered all necessary information "
|
||||
"and are ready to provide the final answer in the required format."
|
||||
),
|
||||
"inputSchema": {
|
||||
"json": generate_model_description(response_model)
|
||||
.get("json_schema", {})
|
||||
.get("schema", {})
|
||||
},
|
||||
}
|
||||
structured_tool: ConverseToolTypeDef = {
|
||||
"toolSpec": {
|
||||
"name": "structured_output",
|
||||
"description": "Returns structured data according to the schema",
|
||||
"inputSchema": {
|
||||
"json": generate_model_description(response_model)
|
||||
.get("json_schema", {})
|
||||
.get("schema", {})
|
||||
},
|
||||
}
|
||||
|
||||
if existing_tools:
|
||||
# Append structured_output to existing tools, don't force toolChoice
|
||||
existing_tools.append(structured_tool)
|
||||
body["toolConfig"] = cast(
|
||||
"ToolConfigurationTypeDef",
|
||||
cast(object, {"tools": existing_tools}),
|
||||
)
|
||||
else:
|
||||
# No existing tools, use only structured_output with forced toolChoice
|
||||
body["toolConfig"] = cast(
|
||||
"ToolConfigurationTypeDef",
|
||||
cast(
|
||||
object,
|
||||
{
|
||||
"tools": [structured_tool],
|
||||
"toolChoice": {
|
||||
"tool": {"name": STRUCTURED_OUTPUT_TOOL_NAME}
|
||||
},
|
||||
},
|
||||
),
|
||||
)
|
||||
}
|
||||
body["toolConfig"] = cast(
|
||||
"ToolConfigurationTypeDef",
|
||||
cast(
|
||||
object,
|
||||
{
|
||||
"tools": [structured_tool],
|
||||
"toolChoice": {"tool": {"name": "structured_output"}},
|
||||
},
|
||||
),
|
||||
)
|
||||
|
||||
full_response = ""
|
||||
current_tool_use: dict[str, Any] | None = None
|
||||
@@ -1049,79 +892,47 @@ class BedrockCompletion(BaseLLM):
|
||||
)
|
||||
elif "contentBlockStop" in event:
|
||||
logging.debug("Content block stopped in stream")
|
||||
if current_tool_use:
|
||||
if current_tool_use and available_functions:
|
||||
function_name = current_tool_use["name"]
|
||||
function_args = cast(
|
||||
dict[str, Any], current_tool_use.get("input", {})
|
||||
)
|
||||
|
||||
# Check if this is the structured_output tool
|
||||
if (
|
||||
function_name == STRUCTURED_OUTPUT_TOOL_NAME
|
||||
and response_model
|
||||
):
|
||||
function_args = _preprocess_structured_data(
|
||||
function_args, response_model
|
||||
tool_result = self._handle_tool_execution(
|
||||
function_name=function_name,
|
||||
function_args=function_args,
|
||||
available_functions=available_functions,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
)
|
||||
if tool_result is not None and tool_use_id:
|
||||
messages.append(
|
||||
{
|
||||
"role": "assistant",
|
||||
"content": [{"toolUse": current_tool_use}],
|
||||
}
|
||||
)
|
||||
try:
|
||||
result = response_model.model_validate(
|
||||
function_args
|
||||
)
|
||||
self._emit_call_completed_event(
|
||||
response=result.model_dump_json(),
|
||||
call_type=LLMCallType.LLM_CALL,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
messages=messages,
|
||||
)
|
||||
return result # type: ignore[return-value]
|
||||
except Exception as e:
|
||||
error_msg = (
|
||||
f"Failed to validate {STRUCTURED_OUTPUT_TOOL_NAME} tool response "
|
||||
f"with model {response_model.__name__}: {e}"
|
||||
)
|
||||
logging.error(error_msg)
|
||||
raise ValueError(error_msg) from e
|
||||
|
||||
# Handle regular tool execution
|
||||
if available_functions:
|
||||
tool_result = self._handle_tool_execution(
|
||||
function_name=function_name,
|
||||
function_args=function_args,
|
||||
available_functions=available_functions,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
)
|
||||
if tool_result is not None and tool_use_id:
|
||||
messages.append(
|
||||
{
|
||||
"role": "assistant",
|
||||
"content": [{"toolUse": current_tool_use}],
|
||||
}
|
||||
)
|
||||
messages.append(
|
||||
{
|
||||
"role": "user",
|
||||
"content": [
|
||||
{
|
||||
"toolResult": {
|
||||
"toolUseId": tool_use_id,
|
||||
"content": [
|
||||
{"text": str(tool_result)}
|
||||
],
|
||||
}
|
||||
messages.append(
|
||||
{
|
||||
"role": "user",
|
||||
"content": [
|
||||
{
|
||||
"toolResult": {
|
||||
"toolUseId": tool_use_id,
|
||||
"content": [
|
||||
{"text": str(tool_result)}
|
||||
],
|
||||
}
|
||||
],
|
||||
}
|
||||
)
|
||||
return self._handle_converse(
|
||||
messages,
|
||||
body,
|
||||
available_functions,
|
||||
from_task,
|
||||
from_agent,
|
||||
response_model,
|
||||
)
|
||||
}
|
||||
],
|
||||
}
|
||||
)
|
||||
return self._handle_converse(
|
||||
messages,
|
||||
body,
|
||||
available_functions,
|
||||
from_task,
|
||||
from_agent,
|
||||
)
|
||||
current_tool_use = None
|
||||
tool_use_id = None
|
||||
elif "messageStop" in event:
|
||||
@@ -1205,58 +1016,27 @@ class BedrockCompletion(BaseLLM):
|
||||
) -> str | Any:
|
||||
"""Handle async non-streaming converse API call."""
|
||||
if response_model:
|
||||
# Check if structured_output tool already exists (from a previous recursive call)
|
||||
existing_tool_config = body.get("toolConfig")
|
||||
existing_tools: list[Any] = []
|
||||
structured_output_already_exists = False
|
||||
|
||||
if existing_tool_config:
|
||||
existing_tools = list(existing_tool_config.get("tools", []))
|
||||
# Check if structured_output tool is already in the tools list
|
||||
for tool in existing_tools:
|
||||
tool_spec = tool.get("toolSpec", {})
|
||||
if tool_spec.get("name") == STRUCTURED_OUTPUT_TOOL_NAME:
|
||||
structured_output_already_exists = True
|
||||
break
|
||||
|
||||
if not structured_output_already_exists:
|
||||
structured_tool: ConverseToolTypeDef = {
|
||||
"toolSpec": {
|
||||
"name": STRUCTURED_OUTPUT_TOOL_NAME,
|
||||
"description": (
|
||||
"Use this tool to provide your final structured response. "
|
||||
"Call this tool when you have gathered all necessary information "
|
||||
"and are ready to provide the final answer in the required format."
|
||||
),
|
||||
"inputSchema": {
|
||||
"json": generate_model_description(response_model)
|
||||
.get("json_schema", {})
|
||||
.get("schema", {})
|
||||
},
|
||||
}
|
||||
structured_tool: ConverseToolTypeDef = {
|
||||
"toolSpec": {
|
||||
"name": "structured_output",
|
||||
"description": "Returns structured data according to the schema",
|
||||
"inputSchema": {
|
||||
"json": generate_model_description(response_model)
|
||||
.get("json_schema", {})
|
||||
.get("schema", {})
|
||||
},
|
||||
}
|
||||
|
||||
if existing_tools:
|
||||
# Append structured_output to existing tools, don't force toolChoice
|
||||
existing_tools.append(structured_tool)
|
||||
body["toolConfig"] = cast(
|
||||
"ToolConfigurationTypeDef",
|
||||
cast(object, {"tools": existing_tools}),
|
||||
)
|
||||
else:
|
||||
# No existing tools, use only structured_output with forced toolChoice
|
||||
body["toolConfig"] = cast(
|
||||
"ToolConfigurationTypeDef",
|
||||
cast(
|
||||
object,
|
||||
{
|
||||
"tools": [structured_tool],
|
||||
"toolChoice": {
|
||||
"tool": {"name": STRUCTURED_OUTPUT_TOOL_NAME}
|
||||
},
|
||||
},
|
||||
),
|
||||
)
|
||||
}
|
||||
body["toolConfig"] = cast(
|
||||
"ToolConfigurationTypeDef",
|
||||
cast(
|
||||
object,
|
||||
{
|
||||
"tools": [structured_tool],
|
||||
"toolChoice": {"tool": {"name": "structured_output"}},
|
||||
},
|
||||
),
|
||||
)
|
||||
|
||||
try:
|
||||
if not messages:
|
||||
@@ -1304,46 +1084,29 @@ class BedrockCompletion(BaseLLM):
|
||||
# If there are tool uses but no available_functions, return them for the executor to handle
|
||||
tool_uses = [block["toolUse"] for block in content if "toolUse" in block]
|
||||
|
||||
# Check for structured_output tool call first
|
||||
if response_model and tool_uses:
|
||||
for tool_use in tool_uses:
|
||||
if tool_use.get("name") == STRUCTURED_OUTPUT_TOOL_NAME:
|
||||
if tool_use.get("name") == "structured_output":
|
||||
structured_data = tool_use.get("input", {})
|
||||
structured_data = _preprocess_structured_data(
|
||||
structured_data, response_model
|
||||
result = response_model.model_validate(structured_data)
|
||||
self._emit_call_completed_event(
|
||||
response=result.model_dump_json(),
|
||||
call_type=LLMCallType.LLM_CALL,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
messages=messages,
|
||||
)
|
||||
try:
|
||||
result = response_model.model_validate(structured_data)
|
||||
self._emit_call_completed_event(
|
||||
response=result.model_dump_json(),
|
||||
call_type=LLMCallType.LLM_CALL,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
messages=messages,
|
||||
)
|
||||
return result
|
||||
except Exception as e:
|
||||
error_msg = (
|
||||
f"Failed to validate {STRUCTURED_OUTPUT_TOOL_NAME} tool response "
|
||||
f"with model {response_model.__name__}: {e}"
|
||||
)
|
||||
logging.error(error_msg)
|
||||
raise ValueError(error_msg) from e
|
||||
return result
|
||||
|
||||
# Filter out structured_output from tool_uses returned to executor
|
||||
non_structured_output_tool_uses = [
|
||||
tu for tu in tool_uses if tu.get("name") != STRUCTURED_OUTPUT_TOOL_NAME
|
||||
]
|
||||
|
||||
if non_structured_output_tool_uses and not available_functions:
|
||||
if tool_uses and not available_functions:
|
||||
self._emit_call_completed_event(
|
||||
response=non_structured_output_tool_uses,
|
||||
response=tool_uses,
|
||||
call_type=LLMCallType.TOOL_CALL,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
messages=messages,
|
||||
)
|
||||
return non_structured_output_tool_uses
|
||||
return tool_uses
|
||||
|
||||
text_content = ""
|
||||
|
||||
@@ -1357,10 +1120,6 @@ class BedrockCompletion(BaseLLM):
|
||||
function_name = tool_use_block["name"]
|
||||
function_args = tool_use_block.get("input", {})
|
||||
|
||||
# Skip structured_output - it's handled above
|
||||
if function_name == STRUCTURED_OUTPUT_TOOL_NAME:
|
||||
continue
|
||||
|
||||
logging.debug(
|
||||
f"Tool use requested: {function_name} with ID {tool_use_id}"
|
||||
)
|
||||
@@ -1396,12 +1155,7 @@ class BedrockCompletion(BaseLLM):
|
||||
)
|
||||
|
||||
return await self._ahandle_converse(
|
||||
messages,
|
||||
body,
|
||||
available_functions,
|
||||
from_task,
|
||||
from_agent,
|
||||
response_model,
|
||||
messages, body, available_functions, from_task, from_agent
|
||||
)
|
||||
|
||||
text_content = self._apply_stop_words(text_content)
|
||||
@@ -1478,58 +1232,27 @@ class BedrockCompletion(BaseLLM):
|
||||
) -> str:
|
||||
"""Handle async streaming converse API call."""
|
||||
if response_model:
|
||||
# Check if structured_output tool already exists (from a previous recursive call)
|
||||
existing_tool_config = body.get("toolConfig")
|
||||
existing_tools: list[Any] = []
|
||||
structured_output_already_exists = False
|
||||
|
||||
if existing_tool_config:
|
||||
existing_tools = list(existing_tool_config.get("tools", []))
|
||||
# Check if structured_output tool is already in the tools list
|
||||
for tool in existing_tools:
|
||||
tool_spec = tool.get("toolSpec", {})
|
||||
if tool_spec.get("name") == STRUCTURED_OUTPUT_TOOL_NAME:
|
||||
structured_output_already_exists = True
|
||||
break
|
||||
|
||||
if not structured_output_already_exists:
|
||||
structured_tool: ConverseToolTypeDef = {
|
||||
"toolSpec": {
|
||||
"name": STRUCTURED_OUTPUT_TOOL_NAME,
|
||||
"description": (
|
||||
"Use this tool to provide your final structured response. "
|
||||
"Call this tool when you have gathered all necessary information "
|
||||
"and are ready to provide the final answer in the required format."
|
||||
),
|
||||
"inputSchema": {
|
||||
"json": generate_model_description(response_model)
|
||||
.get("json_schema", {})
|
||||
.get("schema", {})
|
||||
},
|
||||
}
|
||||
structured_tool: ConverseToolTypeDef = {
|
||||
"toolSpec": {
|
||||
"name": "structured_output",
|
||||
"description": "Returns structured data according to the schema",
|
||||
"inputSchema": {
|
||||
"json": generate_model_description(response_model)
|
||||
.get("json_schema", {})
|
||||
.get("schema", {})
|
||||
},
|
||||
}
|
||||
|
||||
if existing_tools:
|
||||
# Append structured_output to existing tools, don't force toolChoice
|
||||
existing_tools.append(structured_tool)
|
||||
body["toolConfig"] = cast(
|
||||
"ToolConfigurationTypeDef",
|
||||
cast(object, {"tools": existing_tools}),
|
||||
)
|
||||
else:
|
||||
# No existing tools, use only structured_output with forced toolChoice
|
||||
body["toolConfig"] = cast(
|
||||
"ToolConfigurationTypeDef",
|
||||
cast(
|
||||
object,
|
||||
{
|
||||
"tools": [structured_tool],
|
||||
"toolChoice": {
|
||||
"tool": {"name": STRUCTURED_OUTPUT_TOOL_NAME}
|
||||
},
|
||||
},
|
||||
),
|
||||
)
|
||||
}
|
||||
body["toolConfig"] = cast(
|
||||
"ToolConfigurationTypeDef",
|
||||
cast(
|
||||
object,
|
||||
{
|
||||
"tools": [structured_tool],
|
||||
"toolChoice": {"tool": {"name": "structured_output"}},
|
||||
},
|
||||
),
|
||||
)
|
||||
|
||||
full_response = ""
|
||||
current_tool_use: dict[str, Any] | None = None
|
||||
@@ -1623,84 +1346,54 @@ class BedrockCompletion(BaseLLM):
|
||||
|
||||
elif "contentBlockStop" in event:
|
||||
logging.debug("Content block stopped in stream")
|
||||
if current_tool_use:
|
||||
if current_tool_use and available_functions:
|
||||
function_name = current_tool_use["name"]
|
||||
function_args = cast(
|
||||
dict[str, Any], current_tool_use.get("input", {})
|
||||
)
|
||||
|
||||
# Check if this is the structured_output tool
|
||||
if (
|
||||
function_name == STRUCTURED_OUTPUT_TOOL_NAME
|
||||
and response_model
|
||||
):
|
||||
function_args = _preprocess_structured_data(
|
||||
function_args, response_model
|
||||
)
|
||||
try:
|
||||
result = response_model.model_validate(
|
||||
function_args
|
||||
)
|
||||
self._emit_call_completed_event(
|
||||
response=result.model_dump_json(),
|
||||
call_type=LLMCallType.LLM_CALL,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
messages=messages,
|
||||
)
|
||||
return result # type: ignore[return-value]
|
||||
except Exception as e:
|
||||
error_msg = (
|
||||
f"Failed to validate {STRUCTURED_OUTPUT_TOOL_NAME} tool response "
|
||||
f"with model {response_model.__name__}: {e}"
|
||||
)
|
||||
logging.error(error_msg)
|
||||
raise ValueError(error_msg) from e
|
||||
tool_result = self._handle_tool_execution(
|
||||
function_name=function_name,
|
||||
function_args=function_args,
|
||||
available_functions=available_functions,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
)
|
||||
|
||||
# Handle regular tool execution
|
||||
if available_functions:
|
||||
tool_result = self._handle_tool_execution(
|
||||
function_name=function_name,
|
||||
function_args=function_args,
|
||||
available_functions=available_functions,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
if tool_result is not None and tool_use_id:
|
||||
messages.append(
|
||||
{
|
||||
"role": "assistant",
|
||||
"content": [{"toolUse": current_tool_use}],
|
||||
}
|
||||
)
|
||||
|
||||
if tool_result is not None and tool_use_id:
|
||||
messages.append(
|
||||
{
|
||||
"role": "assistant",
|
||||
"content": [{"toolUse": current_tool_use}],
|
||||
}
|
||||
)
|
||||
|
||||
messages.append(
|
||||
{
|
||||
"role": "user",
|
||||
"content": [
|
||||
{
|
||||
"toolResult": {
|
||||
"toolUseId": tool_use_id,
|
||||
"content": [
|
||||
{"text": str(tool_result)}
|
||||
],
|
||||
}
|
||||
messages.append(
|
||||
{
|
||||
"role": "user",
|
||||
"content": [
|
||||
{
|
||||
"toolResult": {
|
||||
"toolUseId": tool_use_id,
|
||||
"content": [
|
||||
{"text": str(tool_result)}
|
||||
],
|
||||
}
|
||||
],
|
||||
}
|
||||
)
|
||||
}
|
||||
],
|
||||
}
|
||||
)
|
||||
|
||||
return await self._ahandle_converse(
|
||||
messages,
|
||||
body,
|
||||
available_functions,
|
||||
from_task,
|
||||
from_agent,
|
||||
response_model,
|
||||
)
|
||||
current_tool_use = None
|
||||
tool_use_id = None
|
||||
return await self._ahandle_converse(
|
||||
messages,
|
||||
body,
|
||||
available_functions,
|
||||
from_task,
|
||||
from_agent,
|
||||
)
|
||||
|
||||
current_tool_use = None
|
||||
tool_use_id = None
|
||||
|
||||
elif "messageStop" in event:
|
||||
stop_reason = event["messageStop"].get("stopReason")
|
||||
|
||||
@@ -34,9 +34,6 @@ except ImportError:
|
||||
) from None
|
||||
|
||||
|
||||
STRUCTURED_OUTPUT_TOOL_NAME = "structured_output"
|
||||
|
||||
|
||||
class GeminiCompletion(BaseLLM):
|
||||
"""Google Gemini native completion implementation.
|
||||
|
||||
@@ -450,9 +447,6 @@ class GeminiCompletion(BaseLLM):
|
||||
Structured output support varies by model version:
|
||||
- Gemini 1.5 and earlier: Uses response_schema (Pydantic model)
|
||||
- Gemini 2.0+: Uses response_json_schema (JSON Schema) with propertyOrdering
|
||||
|
||||
When both tools AND response_model are present, we add a structured_output
|
||||
pseudo-tool since Gemini doesn't support tools + response_schema together.
|
||||
"""
|
||||
self.tools = tools
|
||||
config_params: dict[str, Any] = {}
|
||||
@@ -477,32 +471,7 @@ class GeminiCompletion(BaseLLM):
|
||||
if self.stop_sequences:
|
||||
config_params["stop_sequences"] = self.stop_sequences
|
||||
|
||||
if tools and self.supports_tools:
|
||||
gemini_tools = self._convert_tools_for_interference(tools)
|
||||
|
||||
if response_model:
|
||||
schema_output = generate_model_description(response_model)
|
||||
schema = schema_output.get("json_schema", {}).get("schema", {})
|
||||
if self.is_gemini_2_0:
|
||||
schema = self._add_property_ordering(schema)
|
||||
|
||||
structured_output_tool = types.Tool(
|
||||
function_declarations=[
|
||||
types.FunctionDeclaration(
|
||||
name=STRUCTURED_OUTPUT_TOOL_NAME,
|
||||
description=(
|
||||
"Use this tool to provide your final structured response. "
|
||||
"Call this tool when you have gathered all necessary information "
|
||||
"and are ready to provide the final answer in the required format."
|
||||
),
|
||||
parameters_json_schema=schema,
|
||||
)
|
||||
]
|
||||
)
|
||||
gemini_tools.append(structured_output_tool)
|
||||
|
||||
config_params["tools"] = gemini_tools
|
||||
elif response_model:
|
||||
if response_model:
|
||||
config_params["response_mime_type"] = "application/json"
|
||||
schema_output = generate_model_description(response_model)
|
||||
schema = schema_output.get("json_schema", {}).get("schema", {})
|
||||
@@ -513,6 +482,10 @@ class GeminiCompletion(BaseLLM):
|
||||
else:
|
||||
config_params["response_schema"] = response_model
|
||||
|
||||
# Handle tools for supported models
|
||||
if tools and self.supports_tools:
|
||||
config_params["tools"] = self._convert_tools_for_interference(tools)
|
||||
|
||||
if self.safety_settings:
|
||||
config_params["safety_settings"] = self.safety_settings
|
||||
|
||||
@@ -748,47 +721,6 @@ class GeminiCompletion(BaseLLM):
|
||||
messages_for_event, content, from_agent
|
||||
)
|
||||
|
||||
def _handle_structured_output_tool_call(
|
||||
self,
|
||||
structured_data: dict[str, Any],
|
||||
response_model: type[BaseModel],
|
||||
contents: list[types.Content],
|
||||
from_task: Any | None = None,
|
||||
from_agent: Any | None = None,
|
||||
) -> BaseModel:
|
||||
"""Validate and emit event for structured_output tool call.
|
||||
|
||||
Args:
|
||||
structured_data: The arguments passed to the structured_output tool
|
||||
response_model: Pydantic model to validate against
|
||||
contents: Original contents for event conversion
|
||||
from_task: Task that initiated the call
|
||||
from_agent: Agent that initiated the call
|
||||
|
||||
Returns:
|
||||
Validated Pydantic model instance
|
||||
|
||||
Raises:
|
||||
ValueError: If validation fails
|
||||
"""
|
||||
try:
|
||||
validated_data = response_model.model_validate(structured_data)
|
||||
self._emit_call_completed_event(
|
||||
response=validated_data.model_dump_json(),
|
||||
call_type=LLMCallType.LLM_CALL,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
messages=self._convert_contents_to_dict(contents),
|
||||
)
|
||||
return validated_data
|
||||
except Exception as e:
|
||||
error_msg = (
|
||||
f"Failed to validate {STRUCTURED_OUTPUT_TOOL_NAME} tool response "
|
||||
f"with model {response_model.__name__}: {e}"
|
||||
)
|
||||
logging.error(error_msg)
|
||||
raise ValueError(error_msg) from e
|
||||
|
||||
def _process_response_with_tools(
|
||||
self,
|
||||
response: GenerateContentResponse,
|
||||
@@ -819,47 +751,17 @@ class GeminiCompletion(BaseLLM):
|
||||
part for part in candidate.content.parts if part.function_call
|
||||
]
|
||||
|
||||
# Check for structured_output pseudo-tool call (used when tools + response_model)
|
||||
if response_model and function_call_parts:
|
||||
for part in function_call_parts:
|
||||
if (
|
||||
part.function_call
|
||||
and part.function_call.name == STRUCTURED_OUTPUT_TOOL_NAME
|
||||
):
|
||||
structured_data = (
|
||||
dict(part.function_call.args)
|
||||
if part.function_call.args
|
||||
else {}
|
||||
)
|
||||
return self._handle_structured_output_tool_call(
|
||||
structured_data=structured_data,
|
||||
response_model=response_model,
|
||||
contents=contents,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
)
|
||||
|
||||
# Filter out structured_output from function calls returned to executor
|
||||
non_structured_output_parts = [
|
||||
part
|
||||
for part in function_call_parts
|
||||
if not (
|
||||
part.function_call
|
||||
and part.function_call.name == STRUCTURED_OUTPUT_TOOL_NAME
|
||||
)
|
||||
]
|
||||
|
||||
# If there are function calls but no available_functions,
|
||||
# return them for the executor to handle (like OpenAI/Anthropic)
|
||||
if non_structured_output_parts and not available_functions:
|
||||
if function_call_parts and not available_functions:
|
||||
self._emit_call_completed_event(
|
||||
response=non_structured_output_parts,
|
||||
response=function_call_parts,
|
||||
call_type=LLMCallType.TOOL_CALL,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
messages=self._convert_contents_to_dict(contents),
|
||||
)
|
||||
return non_structured_output_parts
|
||||
return function_call_parts
|
||||
|
||||
# Otherwise execute the tools internally
|
||||
for part in candidate.content.parts:
|
||||
@@ -867,9 +769,6 @@ class GeminiCompletion(BaseLLM):
|
||||
function_name = part.function_call.name
|
||||
if function_name is None:
|
||||
continue
|
||||
# Skip structured_output - it's handled above
|
||||
if function_name == STRUCTURED_OUTPUT_TOOL_NAME:
|
||||
continue
|
||||
function_args = (
|
||||
dict(part.function_call.args)
|
||||
if part.function_call.args
|
||||
@@ -888,15 +787,12 @@ class GeminiCompletion(BaseLLM):
|
||||
return result
|
||||
|
||||
content = self._extract_text_from_response(response)
|
||||
|
||||
effective_response_model = None if self.tools else response_model
|
||||
if not effective_response_model:
|
||||
content = self._apply_stop_words(content)
|
||||
content = self._apply_stop_words(content)
|
||||
|
||||
return self._finalize_completion_response(
|
||||
content=content,
|
||||
contents=contents,
|
||||
response_model=effective_response_model,
|
||||
response_model=response_model,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
)
|
||||
@@ -1003,27 +899,9 @@ class GeminiCompletion(BaseLLM):
|
||||
"""
|
||||
self._track_token_usage_internal(usage_data)
|
||||
|
||||
if response_model and function_calls:
|
||||
for call_data in function_calls.values():
|
||||
if call_data.get("name") == STRUCTURED_OUTPUT_TOOL_NAME:
|
||||
structured_data = call_data.get("args", {})
|
||||
return self._handle_structured_output_tool_call(
|
||||
structured_data=structured_data,
|
||||
response_model=response_model,
|
||||
contents=contents,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
)
|
||||
|
||||
non_structured_output_calls = {
|
||||
idx: call_data
|
||||
for idx, call_data in function_calls.items()
|
||||
if call_data.get("name") != STRUCTURED_OUTPUT_TOOL_NAME
|
||||
}
|
||||
|
||||
# If there are function calls but no available_functions,
|
||||
# return them for the executor to handle
|
||||
if non_structured_output_calls and not available_functions:
|
||||
if function_calls and not available_functions:
|
||||
formatted_function_calls = [
|
||||
{
|
||||
"id": call_data["id"],
|
||||
@@ -1033,7 +911,7 @@ class GeminiCompletion(BaseLLM):
|
||||
},
|
||||
"type": "function",
|
||||
}
|
||||
for call_data in non_structured_output_calls.values()
|
||||
for call_data in function_calls.values()
|
||||
]
|
||||
self._emit_call_completed_event(
|
||||
response=formatted_function_calls,
|
||||
@@ -1044,9 +922,9 @@ class GeminiCompletion(BaseLLM):
|
||||
)
|
||||
return formatted_function_calls
|
||||
|
||||
# Handle completed function calls (excluding structured_output)
|
||||
if non_structured_output_calls and available_functions:
|
||||
for call_data in non_structured_output_calls.values():
|
||||
# Handle completed function calls
|
||||
if function_calls and available_functions:
|
||||
for call_data in function_calls.values():
|
||||
function_name = call_data["name"]
|
||||
function_args = call_data["args"]
|
||||
|
||||
@@ -1070,15 +948,10 @@ class GeminiCompletion(BaseLLM):
|
||||
if result is not None:
|
||||
return result
|
||||
|
||||
# When tools are present, structured output should come via the structured_output
|
||||
# pseudo-tool, not via direct text response. If we reach here with tools present,
|
||||
# the LLM chose to return plain text instead of calling structured_output.
|
||||
effective_response_model = None if self.tools else response_model
|
||||
|
||||
return self._finalize_completion_response(
|
||||
content=full_response,
|
||||
contents=contents,
|
||||
response_model=effective_response_model,
|
||||
response_model=response_model,
|
||||
from_task=from_task,
|
||||
from_agent=from_agent,
|
||||
)
|
||||
|
||||
@@ -848,6 +848,7 @@ class OpenAICompletion(BaseLLM):
|
||||
return result
|
||||
|
||||
content = response.output_text or ""
|
||||
content = self._apply_stop_words(content)
|
||||
|
||||
if response_model:
|
||||
try:
|
||||
@@ -865,8 +866,6 @@ class OpenAICompletion(BaseLLM):
|
||||
except ValueError as e:
|
||||
logging.warning(f"Structured output validation failed: {e}")
|
||||
|
||||
content = self._apply_stop_words(content)
|
||||
|
||||
self._emit_call_completed_event(
|
||||
response=content,
|
||||
call_type=LLMCallType.LLM_CALL,
|
||||
@@ -980,6 +979,7 @@ class OpenAICompletion(BaseLLM):
|
||||
return result
|
||||
|
||||
content = response.output_text or ""
|
||||
content = self._apply_stop_words(content)
|
||||
|
||||
if response_model:
|
||||
try:
|
||||
@@ -997,8 +997,6 @@ class OpenAICompletion(BaseLLM):
|
||||
except ValueError as e:
|
||||
logging.warning(f"Structured output validation failed: {e}")
|
||||
|
||||
content = self._apply_stop_words(content)
|
||||
|
||||
self._emit_call_completed_event(
|
||||
response=content,
|
||||
call_type=LLMCallType.LLM_CALL,
|
||||
@@ -1133,6 +1131,8 @@ class OpenAICompletion(BaseLLM):
|
||||
if result is not None:
|
||||
return result
|
||||
|
||||
full_response = self._apply_stop_words(full_response)
|
||||
|
||||
if response_model:
|
||||
try:
|
||||
structured_result = self._validate_structured_output(
|
||||
@@ -1149,8 +1149,6 @@ class OpenAICompletion(BaseLLM):
|
||||
except ValueError as e:
|
||||
logging.warning(f"Structured output validation failed: {e}")
|
||||
|
||||
full_response = self._apply_stop_words(full_response)
|
||||
|
||||
self._emit_call_completed_event(
|
||||
response=full_response,
|
||||
call_type=LLMCallType.LLM_CALL,
|
||||
@@ -1261,6 +1259,8 @@ class OpenAICompletion(BaseLLM):
|
||||
if result is not None:
|
||||
return result
|
||||
|
||||
full_response = self._apply_stop_words(full_response)
|
||||
|
||||
if response_model:
|
||||
try:
|
||||
structured_result = self._validate_structured_output(
|
||||
@@ -1277,8 +1277,6 @@ class OpenAICompletion(BaseLLM):
|
||||
except ValueError as e:
|
||||
logging.warning(f"Structured output validation failed: {e}")
|
||||
|
||||
full_response = self._apply_stop_words(full_response)
|
||||
|
||||
self._emit_call_completed_event(
|
||||
response=full_response,
|
||||
call_type=LLMCallType.LLM_CALL,
|
||||
@@ -1532,7 +1530,6 @@ class OpenAICompletion(BaseLLM):
|
||||
"function": {
|
||||
"name": name,
|
||||
"description": description,
|
||||
"strict": True,
|
||||
},
|
||||
}
|
||||
|
||||
@@ -1626,6 +1623,7 @@ class OpenAICompletion(BaseLLM):
|
||||
return result
|
||||
|
||||
content = message.content or ""
|
||||
content = self._apply_stop_words(content)
|
||||
|
||||
if self.response_format and isinstance(self.response_format, type):
|
||||
try:
|
||||
@@ -1643,8 +1641,6 @@ class OpenAICompletion(BaseLLM):
|
||||
except ValueError as e:
|
||||
logging.warning(f"Structured output validation failed: {e}")
|
||||
|
||||
content = self._apply_stop_words(content)
|
||||
|
||||
self._emit_call_completed_event(
|
||||
response=content,
|
||||
call_type=LLMCallType.LLM_CALL,
|
||||
@@ -1944,6 +1940,7 @@ class OpenAICompletion(BaseLLM):
|
||||
return result
|
||||
|
||||
content = message.content or ""
|
||||
content = self._apply_stop_words(content)
|
||||
|
||||
if self.response_format and isinstance(self.response_format, type):
|
||||
try:
|
||||
@@ -1961,8 +1958,6 @@ class OpenAICompletion(BaseLLM):
|
||||
except ValueError as e:
|
||||
logging.warning(f"Structured output validation failed: {e}")
|
||||
|
||||
content = self._apply_stop_words(content)
|
||||
|
||||
self._emit_call_completed_event(
|
||||
response=content,
|
||||
call_type=LLMCallType.LLM_CALL,
|
||||
|
||||
@@ -26,12 +26,12 @@
|
||||
"summarize_instruction": "Summarize the following text, make sure to include all the important information: {group}",
|
||||
"summary": "This is a summary of our conversation so far:\n{merged_summary}",
|
||||
"manager_request": "Your best answer to your coworker asking you this, accounting for the context shared.",
|
||||
"formatted_task_instructions": "Format your final answer according to the following OpenAPI schema: {output_format}\n\nIMPORTANT: Preserve the original content exactly as-is. Do NOT rewrite, paraphrase, or modify the meaning of the content. Only structure it to match the schema format.\n\nDo not include the OpenAPI schema in the final output. Ensure the final output does not include any code block markers like ```json or ```python.",
|
||||
"formatted_task_instructions": "Ensure your final answer strictly adheres to the following OpenAPI schema: {output_format}\n\nDo not include the OpenAPI schema in the final output. Ensure the final output does not include any code block markers like ```json or ```python.",
|
||||
"conversation_history_instruction": "You are a member of a crew collaborating to achieve a common goal. Your task is a specific action that contributes to this larger objective. For additional context, please review the conversation history between you and the user that led to the initiation of this crew. Use any relevant information or feedback from the conversation to inform your task execution and ensure your response aligns with both the immediate task and the crew's overall goals.",
|
||||
"feedback_instructions": "User feedback: {feedback}\nInstructions: Use this feedback to enhance the next output iteration.\nNote: Do not respond or add commentary.",
|
||||
"lite_agent_system_prompt_with_tools": "You are {role}. {backstory}\nYour personal goal is: {goal}\n\nYou ONLY have access to the following tools, and should NEVER make up tools that are not listed here:\n\n{tools}\n\nIMPORTANT: Use the following format in your response:\n\n```\nThought: you should always think about what to do\nAction: the action to take, only one name of [{tool_names}], just the name, exactly as it's written.\nAction Input: the input to the action, just a simple JSON object, enclosed in curly braces, using \" to wrap keys and values.\nObservation: the result of the action\n```\n\nOnce all necessary information is gathered, return the following format:\n\n```\nThought: I now know the final answer\nFinal Answer: the final answer to the original input question\n```",
|
||||
"lite_agent_system_prompt_without_tools": "You are {role}. {backstory}\nYour personal goal is: {goal}\n\nTo give my best complete final answer to the task respond using the exact following format:\n\nThought: I now can give a great answer\nFinal Answer: Your final answer must be the great and the most complete as possible, it must be outcome described.\n\nI MUST use these formats, my job depends on it!",
|
||||
"lite_agent_response_format": "Format your final answer according to the following OpenAPI schema: {response_format}\n\nIMPORTANT: Preserve the original content exactly as-is. Do NOT rewrite, paraphrase, or modify the meaning of the content. Only structure it to match the schema format.\n\nDo not include the OpenAPI schema in the final output. Ensure the final output does not include any code block markers like ```json or ```python.",
|
||||
"lite_agent_response_format": "Ensure your final answer strictly adheres to the following OpenAPI schema: {response_format}\n\nDo not include the OpenAPI schema in the final output. Ensure the final output does not include any code block markers like ```json or ```python.",
|
||||
"knowledge_search_query": "The original query is: {task_prompt}.",
|
||||
"knowledge_search_query_system_prompt": "Your goal is to rewrite the user query so that it is optimized for retrieval from a vector database. Consider how the query will be used to find relevant documents, and aim to make it more specific and context-aware. \n\n Do not include any other text than the rewritten query, especially any preamble or postamble and only add expected output format if its relevant to the rewritten query. \n\n Focus on the key words of the intended task and to retrieve the most relevant information. \n\n There will be some extra context provided that might need to be removed such as expected_output formats structured_outputs and other instructions.",
|
||||
"human_feedback_collapse": "Based on the following human feedback, determine which outcome best matches their intent.\n\nFeedback: {feedback}\n\nPossible outcomes: {outcomes}\n\nRespond with ONLY one of the exact outcome values listed above, nothing else."
|
||||
|
||||
@@ -182,7 +182,6 @@ def convert_tools_to_openai_schema(
|
||||
"name": sanitized_name,
|
||||
"description": description,
|
||||
"parameters": parameters,
|
||||
"strict": True,
|
||||
},
|
||||
}
|
||||
openai_tools.append(schema)
|
||||
@@ -925,7 +924,7 @@ def extract_tool_call_info(
|
||||
)
|
||||
func_info = tool_call.get("function", {})
|
||||
func_name = func_info.get("name", "") or tool_call.get("name", "")
|
||||
func_args = func_info.get("arguments") or tool_call.get("input") or {}
|
||||
func_args = func_info.get("arguments", "{}") or tool_call.get("input", {})
|
||||
return call_id, sanitize_tool_name(func_name), func_args
|
||||
return None
|
||||
|
||||
|
||||
@@ -104,7 +104,6 @@ class TestA2AStreamingIntegration:
|
||||
message=test_message,
|
||||
new_messages=new_messages,
|
||||
agent_card=agent_card,
|
||||
endpoint=agent_card.url,
|
||||
)
|
||||
|
||||
assert isinstance(result, dict)
|
||||
@@ -226,7 +225,6 @@ class TestA2APushNotificationHandler:
|
||||
result_store=mock_store,
|
||||
polling_timeout=30.0,
|
||||
polling_interval=1.0,
|
||||
endpoint=mock_agent_card.url,
|
||||
)
|
||||
|
||||
mock_store.wait_for_result.assert_called_once_with(
|
||||
@@ -289,7 +287,6 @@ class TestA2APushNotificationHandler:
|
||||
result_store=mock_store,
|
||||
polling_timeout=5.0,
|
||||
polling_interval=0.5,
|
||||
endpoint=mock_agent_card.url,
|
||||
)
|
||||
|
||||
assert result["status"] == TaskState.failed
|
||||
@@ -320,7 +317,6 @@ class TestA2APushNotificationHandler:
|
||||
message=test_msg,
|
||||
new_messages=new_messages,
|
||||
agent_card=mock_agent_card,
|
||||
endpoint=mock_agent_card.url,
|
||||
)
|
||||
|
||||
assert result["status"] == TaskState.failed
|
||||
|
||||
@@ -43,7 +43,6 @@ def mock_context() -> MagicMock:
|
||||
context.context_id = "test-context-456"
|
||||
context.get_user_input.return_value = "Test user message"
|
||||
context.message = MagicMock(spec=Message)
|
||||
context.message.parts = []
|
||||
context.current_task = None
|
||||
return context
|
||||
|
||||
|
||||
@@ -1,217 +0,0 @@
|
||||
"""Tests for Agent.kickoff() with A2A delegation using VCR cassettes."""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
import os
|
||||
|
||||
import pytest
|
||||
|
||||
from crewai import Agent
|
||||
from crewai.a2a.config import A2AClientConfig
|
||||
|
||||
|
||||
A2A_TEST_ENDPOINT = os.getenv(
|
||||
"A2A_TEST_ENDPOINT", "http://localhost:9999/.well-known/agent-card.json"
|
||||
)
|
||||
|
||||
|
||||
class TestAgentA2AKickoff:
|
||||
"""Tests for Agent.kickoff() with A2A delegation."""
|
||||
|
||||
@pytest.fixture
|
||||
def researcher_agent(self) -> Agent:
|
||||
"""Create a research agent with A2A configuration."""
|
||||
return Agent(
|
||||
role="Research Analyst",
|
||||
goal="Find and analyze information about AI developments",
|
||||
backstory="Expert researcher with access to remote specialized agents",
|
||||
verbose=True,
|
||||
a2a=[
|
||||
A2AClientConfig(
|
||||
endpoint=A2A_TEST_ENDPOINT,
|
||||
fail_fast=False,
|
||||
max_turns=3, # Limit turns for testing
|
||||
)
|
||||
],
|
||||
)
|
||||
|
||||
@pytest.mark.skip(reason="VCR cassette matching issue with agent card caching")
|
||||
@pytest.mark.vcr()
|
||||
def test_agent_kickoff_delegates_to_a2a(self, researcher_agent: Agent) -> None:
|
||||
"""Test that agent.kickoff() delegates to A2A server."""
|
||||
result = researcher_agent.kickoff(
|
||||
"Use the remote A2A agent to find out what the current time is in New York."
|
||||
)
|
||||
|
||||
assert result is not None
|
||||
assert result.raw is not None
|
||||
assert isinstance(result.raw, str)
|
||||
assert len(result.raw) > 0
|
||||
|
||||
@pytest.mark.skip(reason="VCR cassette matching issue with agent card caching")
|
||||
@pytest.mark.vcr()
|
||||
def test_agent_kickoff_with_calculator_skill(
|
||||
self, researcher_agent: Agent
|
||||
) -> None:
|
||||
"""Test that agent can delegate calculation to A2A server."""
|
||||
result = researcher_agent.kickoff(
|
||||
"Ask the remote A2A agent to calculate 25 times 17."
|
||||
)
|
||||
|
||||
assert result is not None
|
||||
assert result.raw is not None
|
||||
assert "425" in result.raw or "425.0" in result.raw
|
||||
|
||||
@pytest.mark.skip(reason="VCR cassette matching issue with agent card caching")
|
||||
@pytest.mark.vcr()
|
||||
def test_agent_kickoff_with_conversation_skill(
|
||||
self, researcher_agent: Agent
|
||||
) -> None:
|
||||
"""Test that agent can have a conversation with A2A server."""
|
||||
result = researcher_agent.kickoff(
|
||||
"Delegate to the remote A2A agent to explain quantum computing in simple terms."
|
||||
)
|
||||
|
||||
assert result is not None
|
||||
assert result.raw is not None
|
||||
assert isinstance(result.raw, str)
|
||||
assert len(result.raw) > 50 # Should have a meaningful response
|
||||
|
||||
@pytest.mark.vcr()
|
||||
def test_agent_kickoff_returns_lite_agent_output(
|
||||
self, researcher_agent: Agent
|
||||
) -> None:
|
||||
"""Test that kickoff returns LiteAgentOutput with correct structure."""
|
||||
from crewai.lite_agent_output import LiteAgentOutput
|
||||
|
||||
result = researcher_agent.kickoff(
|
||||
"Use the A2A agent to tell me what time it is."
|
||||
)
|
||||
|
||||
assert isinstance(result, LiteAgentOutput)
|
||||
assert result.raw is not None
|
||||
assert result.agent_role == "Research Analyst"
|
||||
assert isinstance(result.messages, list)
|
||||
|
||||
@pytest.mark.skip(reason="VCR cassette matching issue with agent card caching")
|
||||
@pytest.mark.vcr()
|
||||
def test_agent_kickoff_handles_multi_turn_conversation(
|
||||
self, researcher_agent: Agent
|
||||
) -> None:
|
||||
"""Test that agent handles multi-turn A2A conversations."""
|
||||
# This should trigger multiple turns of conversation
|
||||
result = researcher_agent.kickoff(
|
||||
"Ask the remote A2A agent about recent developments in AI agent communication protocols."
|
||||
)
|
||||
|
||||
assert result is not None
|
||||
assert result.raw is not None
|
||||
# The response should contain information about A2A or agent protocols
|
||||
assert isinstance(result.raw, str)
|
||||
|
||||
@pytest.mark.vcr()
|
||||
def test_agent_without_a2a_works_normally(self) -> None:
|
||||
"""Test that agent without A2A config works normally."""
|
||||
agent = Agent(
|
||||
role="Simple Assistant",
|
||||
goal="Help with basic tasks",
|
||||
backstory="A helpful assistant",
|
||||
verbose=False,
|
||||
)
|
||||
|
||||
# This should work without A2A delegation
|
||||
result = agent.kickoff("Say hello")
|
||||
|
||||
assert result is not None
|
||||
assert result.raw is not None
|
||||
|
||||
@pytest.mark.vcr()
|
||||
def test_agent_kickoff_with_failed_a2a_endpoint(self) -> None:
|
||||
"""Test that agent handles failed A2A connection gracefully."""
|
||||
agent = Agent(
|
||||
role="Research Analyst",
|
||||
goal="Find information",
|
||||
backstory="Expert researcher",
|
||||
verbose=False,
|
||||
a2a=[
|
||||
A2AClientConfig(
|
||||
endpoint="http://nonexistent:9999/.well-known/agent-card.json",
|
||||
fail_fast=False,
|
||||
)
|
||||
],
|
||||
)
|
||||
|
||||
# Should fallback to local LLM when A2A fails
|
||||
result = agent.kickoff("What is 2 + 2?")
|
||||
|
||||
assert result is not None
|
||||
assert result.raw is not None
|
||||
|
||||
@pytest.mark.skip(reason="VCR cassette matching issue with agent card caching")
|
||||
@pytest.mark.vcr()
|
||||
def test_agent_kickoff_with_list_messages(
|
||||
self, researcher_agent: Agent
|
||||
) -> None:
|
||||
"""Test that agent.kickoff() works with list of messages."""
|
||||
messages = [
|
||||
{
|
||||
"role": "user",
|
||||
"content": "Delegate to the A2A agent to find the current time in Tokyo.",
|
||||
},
|
||||
]
|
||||
|
||||
result = researcher_agent.kickoff(messages)
|
||||
|
||||
assert result is not None
|
||||
assert result.raw is not None
|
||||
assert isinstance(result.raw, str)
|
||||
|
||||
|
||||
class TestAgentA2AKickoffAsync:
|
||||
"""Tests for async Agent.kickoff_async() with A2A delegation."""
|
||||
|
||||
@pytest.fixture
|
||||
def researcher_agent(self) -> Agent:
|
||||
"""Create a research agent with A2A configuration."""
|
||||
return Agent(
|
||||
role="Research Analyst",
|
||||
goal="Find and analyze information",
|
||||
backstory="Expert researcher with access to remote agents",
|
||||
verbose=True,
|
||||
a2a=[
|
||||
A2AClientConfig(
|
||||
endpoint=A2A_TEST_ENDPOINT,
|
||||
fail_fast=False,
|
||||
max_turns=3,
|
||||
)
|
||||
],
|
||||
)
|
||||
|
||||
@pytest.mark.vcr()
|
||||
@pytest.mark.asyncio
|
||||
async def test_agent_kickoff_async_delegates_to_a2a(
|
||||
self, researcher_agent: Agent
|
||||
) -> None:
|
||||
"""Test that agent.kickoff_async() delegates to A2A server."""
|
||||
result = await researcher_agent.kickoff_async(
|
||||
"Use the remote A2A agent to calculate 10 plus 15."
|
||||
)
|
||||
|
||||
assert result is not None
|
||||
assert result.raw is not None
|
||||
assert isinstance(result.raw, str)
|
||||
|
||||
@pytest.mark.skip(reason="Test assertion needs fixing - not capturing final answer")
|
||||
@pytest.mark.vcr()
|
||||
@pytest.mark.asyncio
|
||||
async def test_agent_kickoff_async_with_calculator(
|
||||
self, researcher_agent: Agent
|
||||
) -> None:
|
||||
"""Test async delegation with calculator skill."""
|
||||
result = await researcher_agent.kickoff_async(
|
||||
"Ask the A2A agent to calculate 100 divided by 4."
|
||||
)
|
||||
|
||||
assert result is not None
|
||||
assert result.raw is not None
|
||||
assert "25" in result.raw or "25.0" in result.raw
|
||||
@@ -390,16 +390,18 @@ def test_guardrail_is_called_using_string():
|
||||
with condition:
|
||||
success = condition.wait_for(
|
||||
lambda: len(guardrail_events["started"]) >= 2
|
||||
and any(e.success for e in guardrail_events["completed"]),
|
||||
and len(guardrail_events["completed"]) >= 2,
|
||||
timeout=10,
|
||||
)
|
||||
assert success, "Timeout waiting for successful guardrail event"
|
||||
assert len(guardrail_events["started"]) >= 2
|
||||
assert len(guardrail_events["completed"]) >= 2
|
||||
assert success, "Timeout waiting for all guardrail events"
|
||||
assert len(guardrail_events["started"]) == 2
|
||||
assert len(guardrail_events["completed"]) == 2
|
||||
assert not guardrail_events["completed"][0].success
|
||||
successful_events = [e for e in guardrail_events["completed"] if e.success]
|
||||
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|
||||
Test that agent kickoff returns structured output without tools.
|
||||
This tests native structured output handling for Anthropic models.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
|
||||
class AnalysisResult(BaseModel):
|
||||
"""Structured output for analysis results."""
|
||||
|
||||
topic: str = Field(description="The topic analyzed")
|
||||
key_points: list[str] = Field(description="Key insights from the analysis")
|
||||
summary: str = Field(description="Brief summary of findings")
|
||||
|
||||
agent = Agent(
|
||||
role="Analyst",
|
||||
goal="Provide structured analysis on topics",
|
||||
backstory="You are an expert analyst who provides clear, structured insights.",
|
||||
llm=LLM(model="anthropic/claude-3-5-haiku-20241022"),
|
||||
tools=[],
|
||||
verbose=True,
|
||||
)
|
||||
|
||||
result = agent.kickoff(
|
||||
messages="Analyze the benefits of remote work briefly. Keep it concise.",
|
||||
response_format=AnalysisResult,
|
||||
)
|
||||
|
||||
assert result.pydantic is not None, "Expected pydantic output but got None"
|
||||
assert isinstance(result.pydantic, AnalysisResult), f"Expected AnalysisResult but got {type(result.pydantic)}"
|
||||
assert result.pydantic.topic, "Topic should not be empty"
|
||||
assert len(result.pydantic.key_points) > 0, "Should have at least one key point"
|
||||
assert result.pydantic.summary, "Summary should not be empty"
|
||||
|
||||
|
||||
@pytest.mark.vcr()
|
||||
def test_anthropic_agent_kickoff_structured_output_with_tools():
|
||||
"""
|
||||
Test that agent kickoff returns structured output after using tools.
|
||||
This tests post-tool-call structured output handling for Anthropic models.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
from crewai.tools import tool
|
||||
|
||||
class CalculationResult(BaseModel):
|
||||
"""Structured output for calculation results."""
|
||||
|
||||
operation: str = Field(description="The mathematical operation performed")
|
||||
result: int = Field(description="The result of the calculation")
|
||||
explanation: str = Field(description="Brief explanation of the calculation")
|
||||
|
||||
@tool
|
||||
def add_numbers(a: int, b: int) -> int:
|
||||
"""Add two numbers together and return the sum."""
|
||||
return a + b
|
||||
|
||||
agent = Agent(
|
||||
role="Calculator",
|
||||
goal="Perform calculations using available tools",
|
||||
backstory="You are a calculator assistant that uses tools to compute results.",
|
||||
llm=LLM(model="anthropic/claude-3-5-haiku-20241022"),
|
||||
tools=[add_numbers],
|
||||
verbose=True,
|
||||
)
|
||||
|
||||
result = agent.kickoff(
|
||||
messages="Calculate 15 + 27 using your add_numbers tool. Report the result.",
|
||||
response_format=CalculationResult,
|
||||
)
|
||||
|
||||
assert result.pydantic is not None, "Expected pydantic output but got None"
|
||||
assert isinstance(result.pydantic, CalculationResult), f"Expected CalculationResult but got {type(result.pydantic)}"
|
||||
assert result.pydantic.result == 42, f"Expected result 42 but got {result.pydantic.result}"
|
||||
assert result.pydantic.operation, "Operation should not be empty"
|
||||
assert result.pydantic.explanation, "Explanation should not be empty"
|
||||
|
||||
@@ -1215,192 +1215,3 @@ def test_azure_streaming_returns_usage_metrics():
|
||||
assert result.token_usage.prompt_tokens > 0
|
||||
assert result.token_usage.completion_tokens > 0
|
||||
assert result.token_usage.successful_requests >= 1
|
||||
|
||||
|
||||
# =============================================================================
|
||||
# Agent Kickoff Structured Output Tests
|
||||
# =============================================================================
|
||||
|
||||
|
||||
@pytest.mark.vcr()
|
||||
def test_azure_agent_kickoff_structured_output_without_tools():
|
||||
"""
|
||||
Test that agent kickoff returns structured output without tools.
|
||||
This tests native structured output handling for Azure OpenAI models.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
|
||||
class AnalysisResult(BaseModel):
|
||||
"""Structured output for analysis results."""
|
||||
|
||||
topic: str = Field(description="The topic analyzed")
|
||||
key_points: list[str] = Field(description="Key insights from the analysis")
|
||||
summary: str = Field(description="Brief summary of findings")
|
||||
|
||||
agent = Agent(
|
||||
role="Analyst",
|
||||
goal="Provide structured analysis on topics",
|
||||
backstory="You are an expert analyst who provides clear, structured insights.",
|
||||
llm=LLM(model="azure/gpt-4o-mini"),
|
||||
tools=[],
|
||||
verbose=True,
|
||||
)
|
||||
|
||||
result = agent.kickoff(
|
||||
messages="Analyze the benefits of remote work briefly. Keep it concise.",
|
||||
response_format=AnalysisResult,
|
||||
)
|
||||
|
||||
assert result.pydantic is not None, "Expected pydantic output but got None"
|
||||
assert isinstance(result.pydantic, AnalysisResult), f"Expected AnalysisResult but got {type(result.pydantic)}"
|
||||
assert result.pydantic.topic, "Topic should not be empty"
|
||||
assert len(result.pydantic.key_points) > 0, "Should have at least one key point"
|
||||
assert result.pydantic.summary, "Summary should not be empty"
|
||||
|
||||
|
||||
@pytest.mark.vcr()
|
||||
def test_azure_agent_kickoff_structured_output_with_tools():
|
||||
"""
|
||||
Test that agent kickoff returns structured output after using tools.
|
||||
This tests post-tool-call structured output handling for Azure OpenAI models.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
from crewai.tools import tool
|
||||
|
||||
class CalculationResult(BaseModel):
|
||||
"""Structured output for calculation results."""
|
||||
|
||||
operation: str = Field(description="The mathematical operation performed")
|
||||
result: int = Field(description="The result of the calculation")
|
||||
explanation: str = Field(description="Brief explanation of the calculation")
|
||||
|
||||
@tool
|
||||
def add_numbers(a: int, b: int) -> int:
|
||||
"""Add two numbers together and return the sum."""
|
||||
return a + b
|
||||
|
||||
agent = Agent(
|
||||
role="Calculator",
|
||||
goal="Perform calculations using available tools",
|
||||
backstory="You are a calculator assistant that uses tools to compute results.",
|
||||
llm=LLM(model="azure/gpt-4o-mini"),
|
||||
tools=[add_numbers],
|
||||
verbose=True,
|
||||
)
|
||||
|
||||
result = agent.kickoff(
|
||||
messages="Calculate 15 + 27 using your add_numbers tool. Report the result.",
|
||||
response_format=CalculationResult,
|
||||
)
|
||||
|
||||
assert result.pydantic is not None, "Expected pydantic output but got None"
|
||||
assert isinstance(result.pydantic, CalculationResult), f"Expected CalculationResult but got {type(result.pydantic)}"
|
||||
assert result.pydantic.result == 42, f"Expected result 42 but got {result.pydantic.result}"
|
||||
assert result.pydantic.operation, "Operation should not be empty"
|
||||
assert result.pydantic.explanation, "Explanation should not be empty"
|
||||
|
||||
|
||||
|
||||
def test_azure_stop_words_not_applied_to_structured_output():
|
||||
"""
|
||||
Test that stop words are NOT applied when response_model is provided.
|
||||
This ensures JSON responses containing stop word patterns (like "Observation:")
|
||||
are not truncated, which would cause JSON validation to fail.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
from crewai.llms.providers.azure.completion import AzureCompletion
|
||||
|
||||
class ResearchResult(BaseModel):
|
||||
"""Research result that may contain stop word patterns in string fields."""
|
||||
|
||||
finding: str = Field(description="The research finding")
|
||||
observation: str = Field(description="Observation about the finding")
|
||||
|
||||
# Create AzureCompletion instance with stop words configured
|
||||
llm = AzureCompletion(
|
||||
model="gpt-4",
|
||||
api_key="test-key",
|
||||
endpoint="https://test.openai.azure.com",
|
||||
stop=["Observation:", "Final Answer:"], # Common stop words
|
||||
)
|
||||
|
||||
# JSON response that contains a stop word pattern in a string field
|
||||
# Without the fix, this would be truncated at "Observation:" breaking the JSON
|
||||
json_response = '{"finding": "The data shows growth", "observation": "Observation: This confirms the hypothesis"}'
|
||||
|
||||
with patch.object(llm.client, 'complete') as mock_complete:
|
||||
mock_message = MagicMock()
|
||||
mock_message.content = json_response
|
||||
mock_message.tool_calls = None
|
||||
|
||||
mock_choice = MagicMock()
|
||||
mock_choice.message = mock_message
|
||||
|
||||
mock_response = MagicMock()
|
||||
mock_response.choices = [mock_choice]
|
||||
mock_response.usage = MagicMock(
|
||||
prompt_tokens=100,
|
||||
completion_tokens=50,
|
||||
total_tokens=150
|
||||
)
|
||||
|
||||
mock_complete.return_value = mock_response
|
||||
|
||||
# Call with response_model - stop words should NOT be applied
|
||||
result = llm.call(
|
||||
messages=[{"role": "user", "content": "Analyze the data"}],
|
||||
response_model=ResearchResult,
|
||||
)
|
||||
|
||||
# Should successfully parse the full JSON without truncation
|
||||
assert isinstance(result, ResearchResult)
|
||||
assert result.finding == "The data shows growth"
|
||||
# The observation field should contain the full text including "Observation:"
|
||||
assert "Observation:" in result.observation
|
||||
|
||||
|
||||
def test_azure_stop_words_still_applied_to_regular_responses():
|
||||
"""
|
||||
Test that stop words ARE still applied for regular (non-structured) responses.
|
||||
This ensures the fix didn't break normal stop word behavior.
|
||||
"""
|
||||
from crewai.llms.providers.azure.completion import AzureCompletion
|
||||
|
||||
# Create AzureCompletion instance with stop words configured
|
||||
llm = AzureCompletion(
|
||||
model="gpt-4",
|
||||
api_key="test-key",
|
||||
endpoint="https://test.openai.azure.com",
|
||||
stop=["Observation:", "Final Answer:"],
|
||||
)
|
||||
|
||||
# Response that contains a stop word - should be truncated
|
||||
response_with_stop_word = "I need to search for more information.\n\nAction: search\nObservation: Found results"
|
||||
|
||||
with patch.object(llm.client, 'complete') as mock_complete:
|
||||
mock_message = MagicMock()
|
||||
mock_message.content = response_with_stop_word
|
||||
mock_message.tool_calls = None
|
||||
|
||||
mock_choice = MagicMock()
|
||||
mock_choice.message = mock_message
|
||||
|
||||
mock_response = MagicMock()
|
||||
mock_response.choices = [mock_choice]
|
||||
mock_response.usage = MagicMock(
|
||||
prompt_tokens=100,
|
||||
completion_tokens=50,
|
||||
total_tokens=150
|
||||
)
|
||||
|
||||
mock_complete.return_value = mock_response
|
||||
|
||||
# Call WITHOUT response_model - stop words SHOULD be applied
|
||||
result = llm.call(
|
||||
messages=[{"role": "user", "content": "Search for something"}],
|
||||
)
|
||||
|
||||
# Response should be truncated at the stop word
|
||||
assert "Observation:" not in result
|
||||
assert "Found results" not in result
|
||||
assert "I need to search for more information" in result
|
||||
|
||||
@@ -10,48 +10,9 @@ from crewai.agent import Agent
|
||||
from crewai.task import Task
|
||||
|
||||
|
||||
def _create_bedrock_mocks():
|
||||
"""Helper to create Bedrock mocks."""
|
||||
mock_session_class = MagicMock()
|
||||
mock_session_instance = MagicMock()
|
||||
mock_client = MagicMock()
|
||||
|
||||
# Set up default mock responses to prevent hanging
|
||||
default_response = {
|
||||
'output': {
|
||||
'message': {
|
||||
'role': 'assistant',
|
||||
'content': [
|
||||
{'text': 'Test response'}
|
||||
]
|
||||
}
|
||||
},
|
||||
'usage': {
|
||||
'inputTokens': 10,
|
||||
'outputTokens': 5,
|
||||
'totalTokens': 15
|
||||
}
|
||||
}
|
||||
mock_client.converse.return_value = default_response
|
||||
mock_client.converse_stream.return_value = {'stream': []}
|
||||
|
||||
# Configure the mock session instance to return the mock client
|
||||
mock_session_instance.client.return_value = mock_client
|
||||
|
||||
# Configure the mock Session class to return the mock session instance
|
||||
mock_session_class.return_value = mock_session_instance
|
||||
|
||||
return mock_session_class, mock_client
|
||||
|
||||
|
||||
@pytest.fixture(autouse=True)
|
||||
def mock_aws_credentials():
|
||||
"""Mock AWS credentials and boto3 Session for tests only if real credentials are not set."""
|
||||
# If real AWS credentials exist, don't mock - allow real API calls
|
||||
if "AWS_ACCESS_KEY_ID" in os.environ and "AWS_SECRET_ACCESS_KEY" in os.environ:
|
||||
yield None, None
|
||||
return
|
||||
|
||||
"""Automatically mock AWS credentials and boto3 Session for all tests in this module."""
|
||||
with patch.dict(os.environ, {
|
||||
"AWS_ACCESS_KEY_ID": "test-access-key",
|
||||
"AWS_SECRET_ACCESS_KEY": "test-secret-key",
|
||||
@@ -59,6 +20,7 @@ def mock_aws_credentials():
|
||||
}):
|
||||
# Mock boto3 Session to prevent actual AWS connections
|
||||
with patch('crewai.llms.providers.bedrock.completion.Session') as mock_session_class:
|
||||
# Create mock session instance
|
||||
mock_session_instance = MagicMock()
|
||||
mock_client = MagicMock()
|
||||
|
||||
@@ -90,44 +52,6 @@ def mock_aws_credentials():
|
||||
yield mock_session_class, mock_client
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def bedrock_mocks():
|
||||
"""Fixture that always provides Bedrock mocks, regardless of real credentials.
|
||||
|
||||
Use this fixture for tests that explicitly need to test mock behavior.
|
||||
"""
|
||||
with patch.dict(os.environ, {
|
||||
"AWS_ACCESS_KEY_ID": "test-access-key",
|
||||
"AWS_SECRET_ACCESS_KEY": "test-secret-key",
|
||||
"AWS_DEFAULT_REGION": "us-east-1"
|
||||
}):
|
||||
with patch('crewai.llms.providers.bedrock.completion.Session') as mock_session_class:
|
||||
mock_session_instance = MagicMock()
|
||||
mock_client = MagicMock()
|
||||
|
||||
default_response = {
|
||||
'output': {
|
||||
'message': {
|
||||
'role': 'assistant',
|
||||
'content': [
|
||||
{'text': 'Test response'}
|
||||
]
|
||||
}
|
||||
},
|
||||
'usage': {
|
||||
'inputTokens': 10,
|
||||
'outputTokens': 5,
|
||||
'totalTokens': 15
|
||||
}
|
||||
}
|
||||
mock_client.converse.return_value = default_response
|
||||
mock_client.converse_stream.return_value = {'stream': []}
|
||||
mock_session_instance.client.return_value = mock_client
|
||||
mock_session_class.return_value = mock_session_instance
|
||||
|
||||
yield mock_session_class, mock_client
|
||||
|
||||
|
||||
def test_bedrock_completion_is_used_when_bedrock_provider():
|
||||
"""
|
||||
Test that BedrockCompletion from completion.py is used when LLM uses provider 'bedrock'
|
||||
@@ -412,12 +336,12 @@ def test_bedrock_completion_with_tools():
|
||||
assert len(call_kwargs['tools']) > 0
|
||||
|
||||
|
||||
def test_bedrock_raises_error_when_model_not_found(bedrock_mocks):
|
||||
def test_bedrock_raises_error_when_model_not_found(mock_aws_credentials):
|
||||
"""Test that BedrockCompletion raises appropriate error when model not found"""
|
||||
from botocore.exceptions import ClientError
|
||||
|
||||
# Get the mock client from the fixture
|
||||
_, mock_client = bedrock_mocks
|
||||
_, mock_client = mock_aws_credentials
|
||||
|
||||
error_response = {
|
||||
'Error': {
|
||||
@@ -625,11 +549,11 @@ def test_bedrock_tool_conversion():
|
||||
assert "inputSchema" in bedrock_tools[0]["toolSpec"]
|
||||
|
||||
|
||||
def test_bedrock_environment_variable_credentials(bedrock_mocks):
|
||||
def test_bedrock_environment_variable_credentials(mock_aws_credentials):
|
||||
"""
|
||||
Test that AWS credentials are properly loaded from environment
|
||||
"""
|
||||
mock_session_class, _ = bedrock_mocks
|
||||
mock_session_class, _ = mock_aws_credentials
|
||||
|
||||
# Reset the mock to clear any previous calls
|
||||
mock_session_class.reset_mock()
|
||||
@@ -865,86 +789,3 @@ def test_bedrock_stop_sequences_sent_to_api():
|
||||
assert "inferenceConfig" in call_kwargs
|
||||
assert "stopSequences" in call_kwargs["inferenceConfig"]
|
||||
assert call_kwargs["inferenceConfig"]["stopSequences"] == ["\nObservation:", "\nThought:"]
|
||||
|
||||
|
||||
# =============================================================================
|
||||
# Agent Kickoff Structured Output Tests
|
||||
# =============================================================================
|
||||
|
||||
|
||||
@pytest.mark.vcr()
|
||||
def test_bedrock_agent_kickoff_structured_output_without_tools():
|
||||
"""
|
||||
Test that agent kickoff returns structured output without tools.
|
||||
This tests native structured output handling for Bedrock models.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
|
||||
class AnalysisResult(BaseModel):
|
||||
"""Structured output for analysis results."""
|
||||
|
||||
topic: str = Field(description="The topic analyzed")
|
||||
key_points: list[str] = Field(description="Key insights from the analysis")
|
||||
summary: str = Field(description="Brief summary of findings")
|
||||
|
||||
agent = Agent(
|
||||
role="Analyst",
|
||||
goal="Provide structured analysis on topics",
|
||||
backstory="You are an expert analyst who provides clear, structured insights.",
|
||||
llm=LLM(model="bedrock/anthropic.claude-3-sonnet-20240229-v1:0"),
|
||||
tools=[],
|
||||
verbose=True,
|
||||
)
|
||||
|
||||
result = agent.kickoff(
|
||||
messages="Analyze the benefits of remote work briefly. Keep it concise.",
|
||||
response_format=AnalysisResult,
|
||||
)
|
||||
|
||||
assert result.pydantic is not None, "Expected pydantic output but got None"
|
||||
assert isinstance(result.pydantic, AnalysisResult), f"Expected AnalysisResult but got {type(result.pydantic)}"
|
||||
assert result.pydantic.topic, "Topic should not be empty"
|
||||
assert len(result.pydantic.key_points) > 0, "Should have at least one key point"
|
||||
assert result.pydantic.summary, "Summary should not be empty"
|
||||
|
||||
|
||||
@pytest.mark.vcr()
|
||||
def test_bedrock_agent_kickoff_structured_output_with_tools():
|
||||
"""
|
||||
Test that agent kickoff returns structured output after using tools.
|
||||
This tests post-tool-call structured output handling for Bedrock models.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
from crewai.tools import tool
|
||||
|
||||
class CalculationResult(BaseModel):
|
||||
"""Structured output for calculation results."""
|
||||
|
||||
operation: str = Field(description="The mathematical operation performed")
|
||||
result: int = Field(description="The result of the calculation")
|
||||
explanation: str = Field(description="Brief explanation of the calculation")
|
||||
|
||||
@tool
|
||||
def add_numbers(a: int, b: int) -> int:
|
||||
"""Add two numbers together and return the sum."""
|
||||
return a + b
|
||||
|
||||
agent = Agent(
|
||||
role="Calculator",
|
||||
goal="Perform calculations using available tools",
|
||||
backstory="You are a calculator assistant that uses tools to compute results.",
|
||||
llm=LLM(model="bedrock/anthropic.claude-3-sonnet-20240229-v1:0"),
|
||||
tools=[add_numbers],
|
||||
verbose=True,
|
||||
)
|
||||
|
||||
result = agent.kickoff(
|
||||
messages="Calculate 15 + 27 using your add_numbers tool. Report the result.",
|
||||
response_format=CalculationResult,
|
||||
)
|
||||
|
||||
assert result.pydantic is not None, "Expected pydantic output but got None"
|
||||
assert isinstance(result.pydantic, CalculationResult), f"Expected CalculationResult but got {type(result.pydantic)}"
|
||||
assert result.pydantic.result == 42, f"Expected result 42 but got {result.pydantic.result}"
|
||||
assert result.pydantic.operation, "Operation should not be empty"
|
||||
assert result.pydantic.explanation, "Explanation should not be empty"
|
||||
|
||||
@@ -12,11 +12,8 @@ from crewai.task import Task
|
||||
|
||||
@pytest.fixture(autouse=True)
|
||||
def mock_google_api_key():
|
||||
"""Mock GOOGLE_API_KEY for tests only if real keys are not set."""
|
||||
if "GOOGLE_API_KEY" not in os.environ and "GEMINI_API_KEY" not in os.environ:
|
||||
with patch.dict(os.environ, {"GOOGLE_API_KEY": "test-key"}):
|
||||
yield
|
||||
else:
|
||||
"""Automatically mock GOOGLE_API_KEY for all tests in this module."""
|
||||
with patch.dict(os.environ, {"GOOGLE_API_KEY": "test-key"}):
|
||||
yield
|
||||
|
||||
|
||||
@@ -930,187 +927,3 @@ def test_gemini_1_5_response_model_uses_response_schema():
|
||||
# For Gemini 1.5, response_schema should be the Pydantic model itself
|
||||
# The SDK handles conversion internally
|
||||
assert schema is TestResponse or isinstance(schema, type)
|
||||
|
||||
|
||||
# =============================================================================
|
||||
# Agent Kickoff Structured Output Tests
|
||||
# =============================================================================
|
||||
|
||||
|
||||
@pytest.mark.vcr()
|
||||
def test_gemini_agent_kickoff_structured_output_without_tools():
|
||||
"""
|
||||
Test that agent kickoff returns structured output without tools.
|
||||
This tests native structured output handling for Gemini models.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
|
||||
class AnalysisResult(BaseModel):
|
||||
"""Structured output for analysis results."""
|
||||
|
||||
topic: str = Field(description="The topic analyzed")
|
||||
key_points: list[str] = Field(description="Key insights from the analysis")
|
||||
summary: str = Field(description="Brief summary of findings")
|
||||
|
||||
agent = Agent(
|
||||
role="Analyst",
|
||||
goal="Provide structured analysis on topics",
|
||||
backstory="You are an expert analyst who provides clear, structured insights.",
|
||||
llm=LLM(model="google/gemini-2.0-flash-001"),
|
||||
tools=[],
|
||||
verbose=True,
|
||||
)
|
||||
|
||||
result = agent.kickoff(
|
||||
messages="Analyze the benefits of remote work briefly. Keep it concise.",
|
||||
response_format=AnalysisResult,
|
||||
)
|
||||
|
||||
assert result.pydantic is not None, "Expected pydantic output but got None"
|
||||
assert isinstance(result.pydantic, AnalysisResult), f"Expected AnalysisResult but got {type(result.pydantic)}"
|
||||
assert result.pydantic.topic, "Topic should not be empty"
|
||||
assert len(result.pydantic.key_points) > 0, "Should have at least one key point"
|
||||
assert result.pydantic.summary, "Summary should not be empty"
|
||||
|
||||
|
||||
@pytest.mark.vcr()
|
||||
def test_gemini_agent_kickoff_structured_output_with_tools():
|
||||
"""
|
||||
Test that agent kickoff returns structured output after using tools.
|
||||
This tests post-tool-call structured output handling for Gemini models.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
from crewai.tools import tool
|
||||
|
||||
class CalculationResult(BaseModel):
|
||||
"""Structured output for calculation results."""
|
||||
|
||||
operation: str = Field(description="The mathematical operation performed")
|
||||
result: int = Field(description="The result of the calculation")
|
||||
explanation: str = Field(description="Brief explanation of the calculation")
|
||||
|
||||
@tool
|
||||
def add_numbers(a: int, b: int) -> int:
|
||||
"""Add two numbers together and return the sum."""
|
||||
return a + b
|
||||
|
||||
agent = Agent(
|
||||
role="Calculator",
|
||||
goal="Perform calculations using available tools",
|
||||
backstory="You are a calculator assistant that uses tools to compute results.",
|
||||
llm=LLM(model="google/gemini-2.0-flash-001"),
|
||||
tools=[add_numbers],
|
||||
verbose=True,
|
||||
)
|
||||
|
||||
result = agent.kickoff(
|
||||
messages="Calculate 15 + 27 using your add_numbers tool. Report the result.",
|
||||
response_format=CalculationResult,
|
||||
)
|
||||
|
||||
assert result.pydantic is not None, "Expected pydantic output but got None"
|
||||
assert isinstance(result.pydantic, CalculationResult), f"Expected CalculationResult but got {type(result.pydantic)}"
|
||||
assert result.pydantic.result == 42, f"Expected result 42 but got {result.pydantic.result}"
|
||||
assert result.pydantic.operation, "Operation should not be empty"
|
||||
assert result.pydantic.explanation, "Explanation should not be empty"
|
||||
|
||||
|
||||
|
||||
def test_gemini_stop_words_not_applied_to_structured_output():
|
||||
"""
|
||||
Test that stop words are NOT applied when response_model is provided.
|
||||
This ensures JSON responses containing stop word patterns (like "Observation:")
|
||||
are not truncated, which would cause JSON validation to fail.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
from crewai.llms.providers.gemini.completion import GeminiCompletion
|
||||
|
||||
class ResearchResult(BaseModel):
|
||||
"""Research result that may contain stop word patterns in string fields."""
|
||||
|
||||
finding: str = Field(description="The research finding")
|
||||
observation: str = Field(description="Observation about the finding")
|
||||
|
||||
# Create Gemini completion instance with stop words configured
|
||||
# Gemini uses stop_sequences instead of stop
|
||||
llm = GeminiCompletion(
|
||||
model="gemini-2.0-flash-001",
|
||||
stop_sequences=["Observation:", "Final Answer:"], # Common stop words
|
||||
)
|
||||
|
||||
# JSON response that contains a stop word pattern in a string field
|
||||
# Without the fix, this would be truncated at "Observation:" breaking the JSON
|
||||
json_response = '{"finding": "The data shows growth", "observation": "Observation: This confirms the hypothesis"}'
|
||||
|
||||
# Test the _validate_structured_output method which is used for structured output handling
|
||||
result = llm._validate_structured_output(json_response, ResearchResult)
|
||||
|
||||
# Should successfully parse the full JSON without truncation
|
||||
assert isinstance(result, ResearchResult)
|
||||
assert result.finding == "The data shows growth"
|
||||
# The observation field should contain the full text including "Observation:"
|
||||
assert "Observation:" in result.observation
|
||||
|
||||
|
||||
def test_gemini_stop_words_still_applied_to_regular_responses():
|
||||
"""
|
||||
Test that stop words ARE still applied for regular (non-structured) responses.
|
||||
This ensures the fix didn't break normal stop word behavior.
|
||||
"""
|
||||
from crewai.llms.providers.gemini.completion import GeminiCompletion
|
||||
|
||||
# Create Gemini completion instance with stop words configured
|
||||
# Gemini uses stop_sequences instead of stop
|
||||
llm = GeminiCompletion(
|
||||
model="gemini-2.0-flash-001",
|
||||
stop_sequences=["Observation:", "Final Answer:"],
|
||||
)
|
||||
|
||||
# Response that contains a stop word - should be truncated
|
||||
response_with_stop_word = "I need to search for more information.\n\nAction: search\nObservation: Found results"
|
||||
|
||||
# Test the _apply_stop_words method directly
|
||||
result = llm._apply_stop_words(response_with_stop_word)
|
||||
|
||||
# Response should be truncated at the stop word
|
||||
assert "Observation:" not in result
|
||||
assert "Found results" not in result
|
||||
assert "I need to search for more information" in result
|
||||
|
||||
|
||||
def test_gemini_structured_output_preserves_json_with_stop_word_patterns():
|
||||
"""
|
||||
Test that structured output validation preserves JSON content
|
||||
even when string fields contain stop word patterns.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
from crewai.llms.providers.gemini.completion import GeminiCompletion
|
||||
|
||||
class AgentObservation(BaseModel):
|
||||
"""Model with fields that might contain stop word-like text."""
|
||||
|
||||
action_taken: str = Field(description="What action was taken")
|
||||
observation_result: str = Field(description="The observation result")
|
||||
final_answer: str = Field(description="The final answer")
|
||||
|
||||
# Gemini uses stop_sequences instead of stop
|
||||
llm = GeminiCompletion(
|
||||
model="gemini-2.0-flash-001",
|
||||
stop_sequences=["Observation:", "Final Answer:", "Action:"],
|
||||
)
|
||||
|
||||
# JSON that contains all the stop word patterns as part of the content
|
||||
json_with_stop_patterns = '''{
|
||||
"action_taken": "Action: Searched the database",
|
||||
"observation_result": "Observation: Found 5 relevant results",
|
||||
"final_answer": "Final Answer: The data shows positive growth"
|
||||
}'''
|
||||
|
||||
# Test the _validate_structured_output method - this should NOT truncate
|
||||
# since it's structured output
|
||||
result = llm._validate_structured_output(json_with_stop_patterns, AgentObservation)
|
||||
|
||||
assert isinstance(result, AgentObservation)
|
||||
assert "Action:" in result.action_taken
|
||||
assert "Observation:" in result.observation_result
|
||||
assert "Final Answer:" in result.final_answer
|
||||
|
||||
@@ -1397,184 +1397,3 @@ def test_openai_responses_api_both_auto_chains_work_together():
|
||||
assert params.get("previous_response_id") == "resp_123"
|
||||
assert "reasoning.encrypted_content" in params["include"]
|
||||
assert len(params["input"]) == 2 # Reasoning item + message
|
||||
|
||||
|
||||
# =============================================================================
|
||||
# Agent Kickoff Structured Output Tests
|
||||
# =============================================================================
|
||||
|
||||
|
||||
@pytest.mark.vcr()
|
||||
def test_openai_agent_kickoff_structured_output_without_tools():
|
||||
"""
|
||||
Test that agent kickoff returns structured output without tools.
|
||||
This tests native structured output handling for OpenAI models.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
|
||||
class AnalysisResult(BaseModel):
|
||||
"""Structured output for analysis results."""
|
||||
|
||||
topic: str = Field(description="The topic analyzed")
|
||||
key_points: list[str] = Field(description="Key insights from the analysis")
|
||||
summary: str = Field(description="Brief summary of findings")
|
||||
|
||||
agent = Agent(
|
||||
role="Analyst",
|
||||
goal="Provide structured analysis on topics",
|
||||
backstory="You are an expert analyst who provides clear, structured insights.",
|
||||
llm=LLM(model="gpt-4o-mini"),
|
||||
tools=[],
|
||||
verbose=True,
|
||||
)
|
||||
|
||||
result = agent.kickoff(
|
||||
messages="Analyze the benefits of remote work briefly. Keep it concise.",
|
||||
response_format=AnalysisResult,
|
||||
)
|
||||
|
||||
assert result.pydantic is not None, "Expected pydantic output but got None"
|
||||
assert isinstance(result.pydantic, AnalysisResult), f"Expected AnalysisResult but got {type(result.pydantic)}"
|
||||
assert result.pydantic.topic, "Topic should not be empty"
|
||||
assert len(result.pydantic.key_points) > 0, "Should have at least one key point"
|
||||
assert result.pydantic.summary, "Summary should not be empty"
|
||||
|
||||
|
||||
@pytest.mark.vcr()
|
||||
def test_openai_agent_kickoff_structured_output_with_tools():
|
||||
"""
|
||||
Test that agent kickoff returns structured output after using tools.
|
||||
This tests post-tool-call structured output handling for OpenAI models.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
from crewai.tools import tool
|
||||
|
||||
class CalculationResult(BaseModel):
|
||||
"""Structured output for calculation results."""
|
||||
|
||||
operation: str = Field(description="The mathematical operation performed")
|
||||
result: int = Field(description="The result of the calculation")
|
||||
explanation: str = Field(description="Brief explanation of the calculation")
|
||||
|
||||
@tool
|
||||
def add_numbers(a: int, b: int) -> int:
|
||||
"""Add two numbers together and return the sum."""
|
||||
return a + b
|
||||
|
||||
agent = Agent(
|
||||
role="Calculator",
|
||||
goal="Perform calculations using available tools",
|
||||
backstory="You are a calculator assistant that uses tools to compute results.",
|
||||
llm=LLM(model="gpt-4o-mini"),
|
||||
tools=[add_numbers],
|
||||
verbose=True,
|
||||
)
|
||||
|
||||
result = agent.kickoff(
|
||||
messages="Calculate 15 + 27 using your add_numbers tool. Report the result.",
|
||||
response_format=CalculationResult,
|
||||
)
|
||||
|
||||
assert result.pydantic is not None, "Expected pydantic output but got None"
|
||||
assert isinstance(result.pydantic, CalculationResult), f"Expected CalculationResult but got {type(result.pydantic)}"
|
||||
assert result.pydantic.result == 42, f"Expected result 42 but got {result.pydantic.result}"
|
||||
assert result.pydantic.operation, "Operation should not be empty"
|
||||
assert result.pydantic.explanation, "Explanation should not be empty"
|
||||
|
||||
|
||||
# =============================================================================
|
||||
# Stop Words with Structured Output Tests
|
||||
# =============================================================================
|
||||
|
||||
|
||||
def test_openai_stop_words_not_applied_to_structured_output():
|
||||
"""
|
||||
Test that stop words are NOT applied when response_model is provided.
|
||||
This ensures JSON responses containing stop word patterns (like "Observation:")
|
||||
are not truncated, which would cause JSON validation to fail.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
|
||||
class ResearchResult(BaseModel):
|
||||
"""Research result that may contain stop word patterns in string fields."""
|
||||
|
||||
finding: str = Field(description="The research finding")
|
||||
observation: str = Field(description="Observation about the finding")
|
||||
|
||||
# Create OpenAI completion instance with stop words configured
|
||||
llm = OpenAICompletion(
|
||||
model="gpt-4o",
|
||||
stop=["Observation:", "Final Answer:"], # Common stop words
|
||||
)
|
||||
|
||||
# JSON response that contains a stop word pattern in a string field
|
||||
# Without the fix, this would be truncated at "Observation:" breaking the JSON
|
||||
json_response = '{"finding": "The data shows growth", "observation": "Observation: This confirms the hypothesis"}'
|
||||
|
||||
# Test the _validate_structured_output method directly with content containing stop words
|
||||
# This simulates what happens when the API returns JSON with stop word patterns
|
||||
result = llm._validate_structured_output(json_response, ResearchResult)
|
||||
|
||||
# Should successfully parse the full JSON without truncation
|
||||
assert isinstance(result, ResearchResult)
|
||||
assert result.finding == "The data shows growth"
|
||||
# The observation field should contain the full text including "Observation:"
|
||||
assert "Observation:" in result.observation
|
||||
|
||||
|
||||
def test_openai_stop_words_still_applied_to_regular_responses():
|
||||
"""
|
||||
Test that stop words ARE still applied for regular (non-structured) responses.
|
||||
This ensures the fix didn't break normal stop word behavior.
|
||||
"""
|
||||
# Create OpenAI completion instance with stop words configured
|
||||
llm = OpenAICompletion(
|
||||
model="gpt-4o",
|
||||
stop=["Observation:", "Final Answer:"],
|
||||
)
|
||||
|
||||
# Response that contains a stop word - should be truncated
|
||||
response_with_stop_word = "I need to search for more information.\n\nAction: search\nObservation: Found results"
|
||||
|
||||
# Test the _apply_stop_words method directly
|
||||
result = llm._apply_stop_words(response_with_stop_word)
|
||||
|
||||
# Response should be truncated at the stop word
|
||||
assert "Observation:" not in result
|
||||
assert "Found results" not in result
|
||||
assert "I need to search for more information" in result
|
||||
|
||||
|
||||
def test_openai_structured_output_preserves_json_with_stop_word_patterns():
|
||||
"""
|
||||
Test that structured output validation preserves JSON content
|
||||
even when string fields contain stop word patterns.
|
||||
"""
|
||||
from pydantic import BaseModel, Field
|
||||
|
||||
class AgentObservation(BaseModel):
|
||||
"""Model with fields that might contain stop word-like text."""
|
||||
|
||||
action_taken: str = Field(description="What action was taken")
|
||||
observation_result: str = Field(description="The observation result")
|
||||
final_answer: str = Field(description="The final answer")
|
||||
|
||||
llm = OpenAICompletion(
|
||||
model="gpt-4o",
|
||||
stop=["Observation:", "Final Answer:", "Action:"],
|
||||
)
|
||||
|
||||
# JSON that contains all the stop word patterns as part of the content
|
||||
json_with_stop_patterns = '''{
|
||||
"action_taken": "Action: Searched the database",
|
||||
"observation_result": "Observation: Found 5 relevant results",
|
||||
"final_answer": "Final Answer: The data shows positive growth"
|
||||
}'''
|
||||
|
||||
# This should NOT be truncated since it's structured output
|
||||
result = llm._validate_structured_output(json_with_stop_patterns, AgentObservation)
|
||||
|
||||
assert isinstance(result, AgentObservation)
|
||||
assert "Action:" in result.action_taken
|
||||
assert "Observation:" in result.observation_result
|
||||
assert "Final Answer:" in result.final_answer
|
||||
|
||||
@@ -179,36 +179,22 @@ def task_output():
|
||||
|
||||
@pytest.mark.vcr()
|
||||
def test_task_guardrail_process_output(task_output):
|
||||
"""Test that LLMGuardrail correctly validates task output.
|
||||
|
||||
Note: Due to VCR cassette response ordering issues, the exact results may vary.
|
||||
The test verifies that the guardrail returns a tuple with (bool, str) and
|
||||
processes the output appropriately.
|
||||
"""
|
||||
guardrail = LLMGuardrail(
|
||||
description="Ensure the result has less than 10 words", llm=LLM(model="gpt-4o")
|
||||
)
|
||||
|
||||
result = guardrail(task_output)
|
||||
assert isinstance(result, tuple)
|
||||
assert len(result) == 2
|
||||
assert isinstance(result[0], bool)
|
||||
assert isinstance(result[1], str)
|
||||
assert result[0] is False
|
||||
assert result[1] is not None and len(result[1]) > 0
|
||||
# Check that feedback is provided (wording varies by LLM)
|
||||
assert result[1] == "The task output exceeds the word limit of 10 words by containing 22 words."
|
||||
|
||||
guardrail = LLMGuardrail(
|
||||
description="Ensure the result has less than 500 words", llm=LLM(model="gpt-4o")
|
||||
)
|
||||
|
||||
result = guardrail(task_output)
|
||||
# Should return a tuple of (bool, str)
|
||||
assert isinstance(result, tuple)
|
||||
assert len(result) == 2
|
||||
assert isinstance(result[0], bool)
|
||||
# Note: Due to VCR cassette issues, this may return False with an error message
|
||||
# The important thing is that the guardrail returns a valid response
|
||||
assert result[1] is not None
|
||||
assert result[0] is True
|
||||
assert result[1] == task_output.raw
|
||||
|
||||
|
||||
@pytest.mark.vcr()
|
||||
@@ -274,31 +260,33 @@ def test_guardrail_emits_events(sample_agent):
|
||||
)
|
||||
assert success, f"Timeout waiting for second task events. Started: {len(started_guardrail)}, Completed: {len(completed_guardrail)}"
|
||||
|
||||
string_guardrail_started = [
|
||||
e for e in started_guardrail if e["guardrail"] == "Ensure the authors are from Italy"
|
||||
]
|
||||
callable_guardrail_started = [
|
||||
e for e in started_guardrail if "custom_guardrail" in e["guardrail"]
|
||||
expected_started_events = [
|
||||
{"guardrail": "Ensure the authors are from Italy", "retry_count": 0},
|
||||
{"guardrail": "Ensure the authors are from Italy", "retry_count": 1},
|
||||
{
|
||||
"guardrail": """def custom_guardrail(result: TaskOutput):
|
||||
return (True, "good result from callable function")""",
|
||||
"retry_count": 0,
|
||||
},
|
||||
]
|
||||
|
||||
assert len(string_guardrail_started) >= 2, f"Expected at least 2 string guardrail events, got {len(string_guardrail_started)}"
|
||||
assert len(callable_guardrail_started) == 1, f"Expected 1 callable guardrail event, got {len(callable_guardrail_started)}"
|
||||
assert callable_guardrail_started[0]["retry_count"] == 0
|
||||
|
||||
string_guardrail_completed = [
|
||||
e for e in completed_guardrail if e.get("result") != "good result from callable function"
|
||||
expected_completed_events = [
|
||||
{
|
||||
"success": False,
|
||||
"result": None,
|
||||
"error": "The output indicates that none of the authors mentioned are from Italy, while the guardrail requires authors to be from Italy. Therefore, the output does not comply with the guardrail.",
|
||||
"retry_count": 0,
|
||||
},
|
||||
{"success": True, "result": result.raw, "error": None, "retry_count": 1},
|
||||
{
|
||||
"success": True,
|
||||
"result": "good result from callable function",
|
||||
"error": None,
|
||||
"retry_count": 0,
|
||||
},
|
||||
]
|
||||
callable_guardrail_completed = [
|
||||
e for e in completed_guardrail if e.get("result") == "good result from callable function"
|
||||
]
|
||||
|
||||
assert len(string_guardrail_completed) >= 2
|
||||
assert string_guardrail_completed[0]["success"] is False
|
||||
assert any(e["success"] for e in string_guardrail_completed), "Expected at least one successful string guardrail completion"
|
||||
|
||||
assert len(callable_guardrail_completed) == 1
|
||||
assert callable_guardrail_completed[0]["success"] is True
|
||||
assert callable_guardrail_completed[0]["result"] == "good result from callable function"
|
||||
assert started_guardrail == expected_started_events
|
||||
assert completed_guardrail == expected_completed_events
|
||||
|
||||
|
||||
@pytest.mark.vcr()
|
||||
|
||||
@@ -220,7 +220,7 @@ def test_get_conversion_instructions_gpt() -> None:
|
||||
supports_function_calling.return_value = True
|
||||
instructions = get_conversion_instructions(SimpleModel, llm)
|
||||
# Now using OpenAPI schema format for all models
|
||||
assert "Format your final answer according to the following OpenAPI schema:" in instructions
|
||||
assert "Ensure your final answer strictly adheres to the following OpenAPI schema:" in instructions
|
||||
assert '"type": "json_schema"' in instructions
|
||||
assert '"name": "SimpleModel"' in instructions
|
||||
assert "Do not include the OpenAPI schema in the final output" in instructions
|
||||
@@ -231,7 +231,7 @@ def test_get_conversion_instructions_non_gpt() -> None:
|
||||
with patch.object(LLM, "supports_function_calling", return_value=False):
|
||||
instructions = get_conversion_instructions(SimpleModel, llm)
|
||||
# Now using OpenAPI schema format for all models
|
||||
assert "Format your final answer according to the following OpenAPI schema:" in instructions
|
||||
assert "Ensure your final answer strictly adheres to the following OpenAPI schema:" in instructions
|
||||
assert '"type": "json_schema"' in instructions
|
||||
assert '"name": "SimpleModel"' in instructions
|
||||
assert "Do not include the OpenAPI schema in the final output" in instructions
|
||||
|
||||
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Reference in New Issue
Block a user