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Author SHA1 Message Date
Lorenze Jay
9fcf55198f feat: bump versions to 1.5.0 (#3924)
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* feat: bump versions to 1.5.0

* chore: update crewAI tools dependency to version 1.5.0 in project templates
2025-11-15 18:00:11 -08:00
Lorenze Jay
f46a846ddc chore: remove unused hooks test file (#3923)
- Deleted the `__init__.py` file from the tests/hooks directory as it contained no tests or functionality. This cleanup helps maintain a tidy test structure.
2025-11-15 17:51:42 -08:00
Greyson LaLonde
b546982690 fix: ensure instrumentation flags 2025-11-15 20:48:40 -05:00
Greyson LaLonde
d7bdac12a2 feat: a2a trust remote completion status flag
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- add trust_remote_completion_status flag to A2AConfig, Adds configuration flag to control whether to trust A2A agent completion status. Resolves #3899
- update docs
2025-11-13 13:43:09 -05:00
Lorenze Jay
528d812263 Lorenze/feat hooks (#3902)
* feat: implement LLM call hooks and enhance agent execution context

- Introduced LLM call hooks to allow modification of messages and responses during LLM interactions.
- Added support for before and after hooks in the CrewAgentExecutor, enabling dynamic adjustments to the execution flow.
- Created LLMCallHookContext for comprehensive access to the executor state, facilitating in-place modifications.
- Added validation for hook callables to ensure proper functionality.
- Enhanced tests for LLM hooks and tool hooks to verify their behavior and error handling capabilities.
- Updated LiteAgent and CrewAgentExecutor to accommodate the new crew context in their execution processes.

* feat: implement LLM call hooks and enhance agent execution context

- Introduced LLM call hooks to allow modification of messages and responses during LLM interactions.
- Added support for before and after hooks in the CrewAgentExecutor, enabling dynamic adjustments to the execution flow.
- Created LLMCallHookContext for comprehensive access to the executor state, facilitating in-place modifications.
- Added validation for hook callables to ensure proper functionality.
- Enhanced tests for LLM hooks and tool hooks to verify their behavior and error handling capabilities.
- Updated LiteAgent and CrewAgentExecutor to accommodate the new crew context in their execution processes.

* fix verbose

* feat: introduce crew-scoped hook decorators and refactor hook registration

- Added decorators for before and after LLM and tool calls to enhance flexibility in modifying execution behavior.
- Implemented a centralized hook registration mechanism within CrewBase to automatically register crew-scoped hooks.
- Removed the obsolete base.py file as its functionality has been integrated into the new decorators and registration system.
- Enhanced tests for the new hook decorators to ensure proper registration and execution flow.
- Updated existing hook handling to accommodate the new decorator-based approach, improving code organization and maintainability.

* feat: enhance hook management with clear and unregister functions

- Introduced functions to unregister specific before and after hooks for both LLM and tool calls, improving flexibility in hook management.
- Added clear functions to remove all registered hooks of each type, facilitating easier state management and cleanup.
- Implemented a convenience function to clear all global hooks in one call, streamlining the process for testing and execution context resets.
- Enhanced tests to verify the functionality of unregistering and clearing hooks, ensuring robust behavior in various scenarios.

* refactor: enhance hook type management for LLM and tool hooks

- Updated hook type definitions to use generic protocols for better type safety and flexibility.
- Replaced Callable type annotations with specific BeforeLLMCallHookType and AfterLLMCallHookType for clarity.
- Improved the registration and retrieval functions for before and after hooks to align with the new type definitions.
- Enhanced the setup functions to handle hook execution results, allowing for blocking of LLM calls based on hook logic.
- Updated related tests to ensure proper functionality and type adherence across the hook management system.

* feat: add execution and tool hooks documentation

- Introduced new documentation for execution hooks, LLM call hooks, and tool call hooks to provide comprehensive guidance on their usage and implementation in CrewAI.
- Updated existing documentation to include references to the new hooks, enhancing the learning resources available for users.
- Ensured consistency across multiple languages (English, Portuguese, Korean) for the new documentation, improving accessibility for a wider audience.
- Added examples and troubleshooting sections to assist users in effectively utilizing hooks for agent operations.

---------

Co-authored-by: Greyson LaLonde <greyson.r.lalonde@gmail.com>
2025-11-13 10:11:50 -08:00
Greyson LaLonde
ffd717c51a fix: custom tool docs links, add mintlify broken links action (#3903)
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* fix: update docs links to point to correct endpoints

* fix: update all broken doc links
2025-11-12 22:55:10 -08:00
Heitor Carvalho
fbe4aa4bd1 feat: fetch and store more data about okta authorization server (#3894)
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2025-11-12 15:28:00 -03:00
Lorenze Jay
c205d2e8de feat: implement before and after LLM call hooks in CrewAgentExecutor (#3893)
- Added support for before and after LLM call hooks to allow modification of messages and responses during LLM interactions.
- Introduced LLMCallHookContext to provide hooks with access to the executor state, enabling in-place modifications of messages.
- Updated get_llm_response function to utilize the new hooks, ensuring that modifications persist across iterations.
- Enhanced tests to verify the functionality of the hooks and their error handling capabilities, ensuring robust execution flow.
2025-11-12 08:38:13 -08:00
Daniel Barreto
fcb5b19b2e Enhance schema description of QdrantVectorSearchTool (#3891)
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2025-11-11 14:33:33 -08:00
Rip&Tear
01f0111d52 dependabot.yml creation (#3868)
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* dependabot.yml creation

* Configure dependabot for pip package updates

Co-authored-by: matt <matt@crewai.com>

* Fix Dependabot package ecosystem

* Refactor: Use uv package-ecosystem in dependabot

Co-authored-by: matt <matt@crewai.com>

* fix: ensure dependabot uses uv ecosystem

---------

Co-authored-by: Greyson LaLonde <greyson.r.lalonde@gmail.com>
Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: matt <matt@crewai.com>
2025-11-11 12:14:16 +08:00
Lorenze Jay
6b52587c67 feat: expose messages to TaskOutput and LiteAgentOutputs (#3880)
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* feat: add messages to task and agent outputs

- Introduced a new  field in  and  to capture messages from the last task execution.
- Updated the  class to store the last messages and provide a property for easy access.
- Enhanced the  and  classes to include messages in their outputs.
- Added tests to ensure that messages are correctly included in task outputs and agent outputs during execution.

* using typing_extensions for 3.10 compatability

* feat: add last_messages attribute to agent for improved task tracking

- Introduced a new `last_messages` attribute in the agent class to store messages from the last task execution.
- Updated the `Crew` class to handle the new messages attribute in task outputs.
- Enhanced existing tests to ensure that the `last_messages` attribute is correctly initialized and utilized across various guardrail scenarios.

* fix: add messages field to TaskOutput in tests for consistency

- Updated multiple test cases to include the new `messages` field in the `TaskOutput` instances.
- Ensured that all relevant tests reflect the latest changes in the TaskOutput structure, maintaining consistency across the test suite.
- This change aligns with the recent addition of the `last_messages` attribute in the agent class for improved task tracking.

* feat: preserve messages in task outputs during replay

- Added functionality to the Crew class to store and retrieve messages in task outputs.
- Enhanced the replay mechanism to ensure that messages from stored task outputs are preserved and accessible.
- Introduced a new test case to verify that messages are correctly stored and replayed, ensuring consistency in task execution and output handling.
- This change improves the overall tracking and context retention of task interactions within the CrewAI framework.

* fix original test, prev was debugging
2025-11-10 17:38:30 -08:00
Lorenze Jay
629f7f34ce docs: enhance task guardrail documentation with LLM-based validation support (#3879)
- Added section on LLM-based guardrails, explaining their usage and requirements.
- Updated examples to demonstrate the implementation of multiple guardrails, including both function-based and LLM-based approaches.
- Clarified the distinction between single and multiple guardrails in task configurations.
- Improved explanations of guardrail functionality to ensure better understanding of validation processes.
2025-11-10 15:35:42 -08:00
Lorenze Jay
0f1c173d02 feat: bump versions to 1.4.1 (#3862)
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* feat: bump versions to 1.4.1

* chore: update crewAI tools dependency to version 1.4.1 in project templates
2025-11-07 11:19:07 -08:00
Greyson LaLonde
19c5b9a35e fix: properly handle agent max iterations
fixes #3847
2025-11-07 13:54:11 -05:00
Greyson LaLonde
1ed307b58c fix: route llm model syntax to litellm
* fix: route llm model syntax to litellm

* wip: add list of supported models
2025-11-07 13:34:15 -05:00
Lorenze Jay
d29867bbb6 chore: update version numbers to 1.4.0
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2025-11-06 23:04:44 -05:00
Lorenze Jay
b2c278ed22 refactor: improve MCP tool execution handling with concurrent futures (#3854)
- Enhanced the MCP tool execution in both synchronous and asynchronous contexts by utilizing  for better event loop management.
- Updated error handling to provide clearer messages for connection issues and task cancellations.
- Added tests to validate MCP tool execution in both sync and async scenarios, ensuring robust functionality across different contexts.
2025-11-06 19:28:08 -08:00
Greyson LaLonde
f6aed9798b feat: allow non-ast plot routes 2025-11-06 21:17:29 -05:00
Greyson LaLonde
40a2d387a1 fix: keep stopwords updated 2025-11-06 21:10:25 -05:00
Lorenze Jay
6f36d7003b Lorenze/feat mcp first class support (#3850)
* WIP transport support mcp

* refactor: streamline MCP tool loading and error handling

* linted

* Self type from typing with typing_extensions in MCP transport modules

* added tests for mcp setup

* added tests for mcp setup

* docs: enhance MCP overview with detailed integration examples and structured configurations

* feat: implement MCP event handling and logging in event listener and client

- Added MCP event types and handlers for connection and tool execution events.
- Enhanced MCPClient to emit events on connection status and tool execution.
- Updated ConsoleFormatter to handle MCP event logging.
- Introduced new MCP event types for better integration and monitoring.
2025-11-06 17:45:16 -08:00
Greyson LaLonde
9e5906c52f feat: add pydantic validation dunder to BaseInterceptor
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2025-11-06 15:27:07 -05:00
Lorenze Jay
fc521839e4 Lorenze/fix duplicating doc ids for knowledge (#3840)
* fix: update document ID handling in ChromaDB utility functions to use SHA-256 hashing and include index for uniqueness

* test: add tests for hash-based ID generation in ChromaDB utility functions

* drop idx for preventing dups, upsert should handle dups

* fix: update document ID extraction logic in ChromaDB utility functions to check for doc_id at the top level of the document

* fix: enhance document ID generation in ChromaDB utility functions to deduplicate documents and ensure unique hash-based IDs without suffixes

* fix: improve error handling and document ID generation in ChromaDB utility functions to ensure robust processing and uniqueness
2025-11-06 10:59:52 -08:00
166 changed files with 21740 additions and 4328 deletions

11
.github/dependabot.yml vendored Normal file
View File

@@ -0,0 +1,11 @@
# To get started with Dependabot version updates, you'll need to specify which
# package ecosystems to update and where the package manifests are located.
# Please see the documentation for all configuration options:
# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
version: 2
updates:
- package-ecosystem: uv # See documentation for possible values
directory: "/" # Location of package manifests
schedule:
interval: "weekly"

35
.github/workflows/docs-broken-links.yml vendored Normal file
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@@ -0,0 +1,35 @@
name: Check Documentation Broken Links
on:
pull_request:
paths:
- "docs/**"
- "docs.json"
push:
branches:
- main
paths:
- "docs/**"
- "docs.json"
workflow_dispatch:
jobs:
check-links:
name: Check broken links
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Set up Node
uses: actions/setup-node@v4
with:
node-version: "latest"
- name: Install Mintlify CLI
run: npm i -g mintlify
- name: Run broken link checker
run: |
# Auto-answer the prompt with yes command
yes "" | mintlify broken-links || test $? -eq 141
working-directory: ./docs

View File

@@ -313,7 +313,10 @@
"en/learn/multimodal-agents",
"en/learn/replay-tasks-from-latest-crew-kickoff",
"en/learn/sequential-process",
"en/learn/using-annotations"
"en/learn/using-annotations",
"en/learn/execution-hooks",
"en/learn/llm-hooks",
"en/learn/tool-hooks"
]
},
{
@@ -737,7 +740,10 @@
"pt-BR/learn/multimodal-agents",
"pt-BR/learn/replay-tasks-from-latest-crew-kickoff",
"pt-BR/learn/sequential-process",
"pt-BR/learn/using-annotations"
"pt-BR/learn/using-annotations",
"pt-BR/learn/execution-hooks",
"pt-BR/learn/llm-hooks",
"pt-BR/learn/tool-hooks"
]
},
{
@@ -1170,7 +1176,10 @@
"ko/learn/multimodal-agents",
"ko/learn/replay-tasks-from-latest-crew-kickoff",
"ko/learn/sequential-process",
"ko/learn/using-annotations"
"ko/learn/using-annotations",
"ko/learn/execution-hooks",
"ko/learn/llm-hooks",
"ko/learn/tool-hooks"
]
},
{

View File

@@ -402,6 +402,77 @@ crewai config reset
After resetting configuration, re-run `crewai login` to authenticate again.
</Tip>
### 14. Trace Management
Manage trace collection preferences for your Crew and Flow executions.
```shell Terminal
crewai traces [COMMAND]
```
#### Commands:
- `enable`: Enable trace collection for crew/flow executions
```shell Terminal
crewai traces enable
```
- `disable`: Disable trace collection for crew/flow executions
```shell Terminal
crewai traces disable
```
- `status`: Show current trace collection status
```shell Terminal
crewai traces status
```
#### How Tracing Works
Trace collection is controlled by checking three settings in priority order:
1. **Explicit flag in code** (highest priority - can enable OR disable):
```python
crew = Crew(agents=[...], tasks=[...], tracing=True) # Always enable
crew = Crew(agents=[...], tasks=[...], tracing=False) # Always disable
crew = Crew(agents=[...], tasks=[...]) # Check lower priorities (default)
```
- `tracing=True` will **always enable** tracing (overrides everything)
- `tracing=False` will **always disable** tracing (overrides everything)
- `tracing=None` or omitted will check lower priority settings
2. **Environment variable** (second priority):
```env
CREWAI_TRACING_ENABLED=true
```
- Checked only if `tracing` is not explicitly set to `True` or `False` in code
- Set to `true` or `1` to enable tracing
3. **User preference** (lowest priority):
```shell Terminal
crewai traces enable
```
- Checked only if `tracing` is not set in code and `CREWAI_TRACING_ENABLED` is not set to `true`
- Running `crewai traces enable` is sufficient to enable tracing by itself
<Note>
**To enable tracing**, use any one of these methods:
- Set `tracing=True` in your Crew/Flow code, OR
- Add `CREWAI_TRACING_ENABLED=true` to your `.env` file, OR
- Run `crewai traces enable`
**To disable tracing**, use any ONE of these methods:
- Set `tracing=False` in your Crew/Flow code (overrides everything), OR
- Remove or set to `false` the `CREWAI_TRACING_ENABLED` env var, OR
- Run `crewai traces disable`
Higher priority settings override lower ones.
</Note>
<Tip>
For more information about tracing, see the [Tracing documentation](/observability/tracing).
</Tip>
<Tip>
CrewAI CLI handles authentication to the Tool Repository automatically when adding packages to your project. Just append `crewai` before any `uv` command to use it. E.g. `crewai uv add requests`. For more information, see [Tool Repository](https://docs.crewai.com/enterprise/features/tool-repository) docs.
</Tip>

View File

@@ -739,7 +739,7 @@ class KnowledgeMonitorListener(BaseEventListener):
knowledge_monitor = KnowledgeMonitorListener()
```
For more information on using events, see the [Event Listeners](https://docs.crewai.com/concepts/event-listener) documentation.
For more information on using events, see the [Event Listeners](/en/concepts/event-listener) documentation.
### Custom Knowledge Sources

View File

@@ -1035,7 +1035,7 @@ CrewAI supports streaming responses from LLMs, allowing your application to rece
```
<Tip>
[Click here](https://docs.crewai.com/concepts/event-listener#event-listeners) for more details
[Click here](/en/concepts/event-listener#event-listeners) for more details
</Tip>
</Tab>

View File

@@ -60,6 +60,7 @@ crew = Crew(
| **Output Pydantic** _(optional)_ | `output_pydantic` | `Optional[Type[BaseModel]]` | A Pydantic model for task output. |
| **Callback** _(optional)_ | `callback` | `Optional[Any]` | Function/object to be executed after task completion. |
| **Guardrail** _(optional)_ | `guardrail` | `Optional[Callable]` | Function to validate task output before proceeding to next task. |
| **Guardrails** _(optional)_ | `guardrails` | `Optional[List[Callable] | List[str]]` | List of guardrails to validate task output before proceeding to next task. |
| **Guardrail Max Retries** _(optional)_ | `guardrail_max_retries` | `Optional[int]` | Maximum number of retries when guardrail validation fails. Defaults to 3. |
<Note type="warning" title="Deprecated: max_retries">
@@ -223,6 +224,7 @@ By default, the `TaskOutput` will only include the `raw` output. A `TaskOutput`
| **JSON Dict** | `json_dict` | `Optional[Dict[str, Any]]` | A dictionary representing the JSON output of the task. |
| **Agent** | `agent` | `str` | The agent that executed the task. |
| **Output Format** | `output_format` | `OutputFormat` | The format of the task output, with options including RAW, JSON, and Pydantic. The default is RAW. |
| **Messages** | `messages` | `list[LLMMessage]` | The messages from the last task execution. |
### Task Methods and Properties
@@ -341,7 +343,11 @@ Task guardrails provide a way to validate and transform task outputs before they
are passed to the next task. This feature helps ensure data quality and provides
feedback to agents when their output doesn't meet specific criteria.
Guardrails are implemented as Python functions that contain custom validation logic, giving you complete control over the validation process and ensuring reliable, deterministic results.
CrewAI supports two types of guardrails:
1. **Function-based guardrails**: Python functions with custom validation logic, giving you complete control over the validation process and ensuring reliable, deterministic results.
2. **LLM-based guardrails**: String descriptions that use the agent's LLM to validate outputs based on natural language criteria. These are ideal for complex or subjective validation requirements.
### Function-Based Guardrails
@@ -355,12 +361,12 @@ def validate_blog_content(result: TaskOutput) -> Tuple[bool, Any]:
"""Validate blog content meets requirements."""
try:
# Check word count
word_count = len(result.split())
word_count = len(result.raw.split())
if word_count > 200:
return (False, "Blog content exceeds 200 words")
# Additional validation logic here
return (True, result.strip())
return (True, result.raw.strip())
except Exception as e:
return (False, "Unexpected error during validation")
@@ -372,6 +378,147 @@ blog_task = Task(
)
```
### LLM-Based Guardrails (String Descriptions)
Instead of writing custom validation functions, you can use string descriptions that leverage LLM-based validation. When you provide a string to the `guardrail` or `guardrails` parameter, CrewAI automatically creates an `LLMGuardrail` that uses the agent's LLM to validate the output based on your description.
**Requirements**:
- The task must have an `agent` assigned (the guardrail uses the agent's LLM)
- Provide a clear, descriptive string explaining the validation criteria
```python Code
from crewai import Task
# Single LLM-based guardrail
blog_task = Task(
description="Write a blog post about AI",
expected_output="A blog post under 200 words",
agent=blog_agent,
guardrail="The blog post must be under 200 words and contain no technical jargon"
)
```
LLM-based guardrails are particularly useful for:
- **Complex validation logic** that's difficult to express programmatically
- **Subjective criteria** like tone, style, or quality assessments
- **Natural language requirements** that are easier to describe than code
The LLM guardrail will:
1. Analyze the task output against your description
2. Return `(True, output)` if the output complies with the criteria
3. Return `(False, feedback)` with specific feedback if validation fails
**Example with detailed validation criteria**:
```python Code
research_task = Task(
description="Research the latest developments in quantum computing",
expected_output="A comprehensive research report",
agent=researcher_agent,
guardrail="""
The research report must:
- Be at least 1000 words long
- Include at least 5 credible sources
- Cover both technical and practical applications
- Be written in a professional, academic tone
- Avoid speculation or unverified claims
"""
)
```
### Multiple Guardrails
You can apply multiple guardrails to a task using the `guardrails` parameter. Multiple guardrails are executed sequentially, with each guardrail receiving the output from the previous one. This allows you to chain validation and transformation steps.
The `guardrails` parameter accepts:
- A list of guardrail functions or string descriptions
- A single guardrail function or string (same as `guardrail`)
**Note**: If `guardrails` is provided, it takes precedence over `guardrail`. The `guardrail` parameter will be ignored when `guardrails` is set.
```python Code
from typing import Tuple, Any
from crewai import TaskOutput, Task
def validate_word_count(result: TaskOutput) -> Tuple[bool, Any]:
"""Validate word count is within limits."""
word_count = len(result.raw.split())
if word_count < 100:
return (False, f"Content too short: {word_count} words. Need at least 100 words.")
if word_count > 500:
return (False, f"Content too long: {word_count} words. Maximum is 500 words.")
return (True, result.raw)
def validate_no_profanity(result: TaskOutput) -> Tuple[bool, Any]:
"""Check for inappropriate language."""
profanity_words = ["badword1", "badword2"] # Example list
content_lower = result.raw.lower()
for word in profanity_words:
if word in content_lower:
return (False, f"Inappropriate language detected: {word}")
return (True, result.raw)
def format_output(result: TaskOutput) -> Tuple[bool, Any]:
"""Format and clean the output."""
formatted = result.raw.strip()
# Capitalize first letter
formatted = formatted[0].upper() + formatted[1:] if formatted else formatted
return (True, formatted)
# Apply multiple guardrails sequentially
blog_task = Task(
description="Write a blog post about AI",
expected_output="A well-formatted blog post between 100-500 words",
agent=blog_agent,
guardrails=[
validate_word_count, # First: validate length
validate_no_profanity, # Second: check content
format_output # Third: format the result
],
guardrail_max_retries=3
)
```
In this example, the guardrails execute in order:
1. `validate_word_count` checks the word count
2. `validate_no_profanity` checks for inappropriate language (using the output from step 1)
3. `format_output` formats the final result (using the output from step 2)
If any guardrail fails, the error is sent back to the agent, and the task is retried up to `guardrail_max_retries` times.
**Mixing function-based and LLM-based guardrails**:
You can combine both function-based and string-based guardrails in the same list:
```python Code
from typing import Tuple, Any
from crewai import TaskOutput, Task
def validate_word_count(result: TaskOutput) -> Tuple[bool, Any]:
"""Validate word count is within limits."""
word_count = len(result.raw.split())
if word_count < 100:
return (False, f"Content too short: {word_count} words. Need at least 100 words.")
if word_count > 500:
return (False, f"Content too long: {word_count} words. Maximum is 500 words.")
return (True, result.raw)
# Mix function-based and LLM-based guardrails
blog_task = Task(
description="Write a blog post about AI",
expected_output="A well-formatted blog post between 100-500 words",
agent=blog_agent,
guardrails=[
validate_word_count, # Function-based: precise word count check
"The content must be engaging and suitable for a general audience", # LLM-based: subjective quality check
"The writing style should be clear, concise, and free of technical jargon" # LLM-based: style validation
],
guardrail_max_retries=3
)
```
This approach combines the precision of programmatic validation with the flexibility of LLM-based assessment for subjective criteria.
### Guardrail Function Requirements
1. **Function Signature**:

View File

@@ -37,7 +37,7 @@ you can use them locally or refine them to your needs.
<Card title="Tools & Integrations" href="/en/enterprise/features/tools-and-integrations" icon="wrench">
Connect external apps and manage internal tools your agents can use.
</Card>
<Card title="Tool Repository" href="/en/enterprise/features/tool-repository" icon="toolbox">
<Card title="Tool Repository" href="/en/enterprise/guides/tool-repository#tool-repository" icon="toolbox">
Publish and install tools to enhance your crews' capabilities.
</Card>
<Card title="Agents Repository" href="/en/enterprise/features/agent-repositories" icon="people-group">

View File

@@ -241,7 +241,7 @@ Tools & Integrations is the central hub for connecting thirdparty apps and ma
## Related
<CardGroup cols={2}>
<Card title="Tool Repository" href="/en/enterprise/features/tool-repository" icon="toolbox">
<Card title="Tool Repository" href="/en/enterprise/guides/tool-repository#tool-repository" icon="toolbox">
Create, publish, and version custom tools for your organization.
</Card>
<Card title="Webhook Automation" href="/en/enterprise/guides/webhook-automation" icon="bolt">

View File

@@ -21,7 +21,7 @@ The repository is not a version control system. Use Git to track code changes an
Before using the Tool Repository, ensure you have:
- A [CrewAI AMP](https://app.crewai.com) account
- [CrewAI CLI](https://docs.crewai.com/concepts/cli#cli) installed
- [CrewAI CLI](/en/concepts/cli#cli) installed
- uv>=0.5.0 installed. Check out [how to upgrade](https://docs.astral.sh/uv/getting-started/installation/#upgrading-uv)
- [Git](https://git-scm.com) installed and configured
- Access permissions to publish or install tools in your CrewAI AMP organization
@@ -112,7 +112,7 @@ By default, tools are published as private. To make a tool public:
crewai tool publish --public
```
For more details on how to build tools, see [Creating your own tools](https://docs.crewai.com/concepts/tools#creating-your-own-tools).
For more details on how to build tools, see [Creating your own tools](/en/concepts/tools#creating-your-own-tools).
## Updating Tools

View File

@@ -49,7 +49,7 @@ mode: "wide"
To integrate human input into agent execution, set the `human_input` flag in the task definition. When enabled, the agent prompts the user for input before delivering its final answer. This input can provide extra context, clarify ambiguities, or validate the agent's output.
For detailed implementation guidance, see our [Human-in-the-Loop guide](/en/how-to/human-in-the-loop).
For detailed implementation guidance, see our [Human-in-the-Loop guide](/en/enterprise/guides/human-in-the-loop).
</Accordion>
<Accordion title="What advanced customization options are available for tailoring and enhancing agent behavior and capabilities in CrewAI?">
@@ -142,7 +142,7 @@ mode: "wide"
<Accordion title="How can I create custom tools for my CrewAI agents?">
You can create custom tools by subclassing the `BaseTool` class provided by CrewAI or by using the tool decorator. Subclassing involves defining a new class that inherits from `BaseTool`, specifying the name, description, and the `_run` method for operational logic. The tool decorator allows you to create a `Tool` object directly with the required attributes and a functional logic.
<Card href="https://docs.crewai.com/how-to/create-custom-tools" icon="code">CrewAI Tools Guide</Card>
<Card href="/en/learn/create-custom-tools" icon="code">CrewAI Tools Guide</Card>
</Accordion>
<Accordion title="How can you control the maximum number of requests per minute that the entire crew can perform?">

View File

@@ -83,6 +83,10 @@ The `A2AConfig` class accepts the following parameters:
Whether to raise an error immediately if agent connection fails. When `False`, the agent continues with available agents and informs the LLM about unavailable ones.
</ParamField>
<ParamField path="trust_remote_completion_status" type="bool" default="False">
When `True`, returns the A2A agent's result directly when it signals completion. When `False`, allows the server agent to review the result and potentially continue the conversation.
</ParamField>
## Authentication
For A2A agents that require authentication, use one of the provided auth schemes:

View File

@@ -0,0 +1,522 @@
---
title: Execution Hooks Overview
description: Understanding and using execution hooks in CrewAI for fine-grained control over agent operations
mode: "wide"
---
Execution Hooks provide fine-grained control over the runtime behavior of your CrewAI agents. Unlike kickoff hooks that run before and after crew execution, execution hooks intercept specific operations during agent execution, allowing you to modify behavior, implement safety checks, and add comprehensive monitoring.
## Types of Execution Hooks
CrewAI provides two main categories of execution hooks:
### 1. [LLM Call Hooks](/learn/llm-hooks)
Control and monitor language model interactions:
- **Before LLM Call**: Modify prompts, validate inputs, implement approval gates
- **After LLM Call**: Transform responses, sanitize outputs, update conversation history
**Use Cases:**
- Iteration limiting
- Cost tracking and token usage monitoring
- Response sanitization and content filtering
- Human-in-the-loop approval for LLM calls
- Adding safety guidelines or context
- Debug logging and request/response inspection
[View LLM Hooks Documentation →](/learn/llm-hooks)
### 2. [Tool Call Hooks](/learn/tool-hooks)
Control and monitor tool execution:
- **Before Tool Call**: Modify inputs, validate parameters, block dangerous operations
- **After Tool Call**: Transform results, sanitize outputs, log execution details
**Use Cases:**
- Safety guardrails for destructive operations
- Human approval for sensitive actions
- Input validation and sanitization
- Result caching and rate limiting
- Tool usage analytics
- Debug logging and monitoring
[View Tool Hooks Documentation →](/learn/tool-hooks)
## Hook Registration Methods
### 1. Decorator-Based Hooks (Recommended)
The cleanest and most Pythonic way to register hooks:
```python
from crewai.hooks import before_llm_call, after_llm_call, before_tool_call, after_tool_call
@before_llm_call
def limit_iterations(context):
"""Prevent infinite loops by limiting iterations."""
if context.iterations > 10:
return False # Block execution
return None
@after_llm_call
def sanitize_response(context):
"""Remove sensitive data from LLM responses."""
if "API_KEY" in context.response:
return context.response.replace("API_KEY", "[REDACTED]")
return None
@before_tool_call
def block_dangerous_tools(context):
"""Block destructive operations."""
if context.tool_name == "delete_database":
return False # Block execution
return None
@after_tool_call
def log_tool_result(context):
"""Log tool execution."""
print(f"Tool {context.tool_name} completed")
return None
```
### 2. Crew-Scoped Hooks
Apply hooks only to specific crew instances:
```python
from crewai import CrewBase
from crewai.project import crew
from crewai.hooks import before_llm_call_crew, after_tool_call_crew
@CrewBase
class MyProjCrew:
@before_llm_call_crew
def validate_inputs(self, context):
# Only applies to this crew
print(f"LLM call in {self.__class__.__name__}")
return None
@after_tool_call_crew
def log_results(self, context):
# Crew-specific logging
print(f"Tool result: {context.tool_result[:50]}...")
return None
@crew
def crew(self) -> Crew:
return Crew(
agents=self.agents,
tasks=self.tasks,
process=Process.sequential
)
```
## Hook Execution Flow
### LLM Call Flow
```
Agent needs to call LLM
[Before LLM Call Hooks Execute]
├→ Hook 1: Validate iteration count
├→ Hook 2: Add safety context
└→ Hook 3: Log request
If any hook returns False:
├→ Block LLM call
└→ Raise ValueError
If all hooks return True/None:
├→ LLM call proceeds
└→ Response generated
[After LLM Call Hooks Execute]
├→ Hook 1: Sanitize response
├→ Hook 2: Log response
└→ Hook 3: Update metrics
Final response returned
```
### Tool Call Flow
```
Agent needs to execute tool
[Before Tool Call Hooks Execute]
├→ Hook 1: Check if tool is allowed
├→ Hook 2: Validate inputs
└→ Hook 3: Request approval if needed
If any hook returns False:
├→ Block tool execution
└→ Return error message
If all hooks return True/None:
├→ Tool execution proceeds
└→ Result generated
[After Tool Call Hooks Execute]
├→ Hook 1: Sanitize result
├→ Hook 2: Cache result
└→ Hook 3: Log metrics
Final result returned
```
## Hook Context Objects
### LLMCallHookContext
Provides access to LLM execution state:
```python
class LLMCallHookContext:
executor: CrewAgentExecutor # Full executor access
messages: list # Mutable message list
agent: Agent # Current agent
task: Task # Current task
crew: Crew # Crew instance
llm: BaseLLM # LLM instance
iterations: int # Current iteration
response: str | None # LLM response (after hooks)
```
### ToolCallHookContext
Provides access to tool execution state:
```python
class ToolCallHookContext:
tool_name: str # Tool being called
tool_input: dict # Mutable input parameters
tool: CrewStructuredTool # Tool instance
agent: Agent | None # Agent executing
task: Task | None # Current task
crew: Crew | None # Crew instance
tool_result: str | None # Tool result (after hooks)
```
## Common Patterns
### Safety and Validation
```python
@before_tool_call
def safety_check(context):
"""Block destructive operations."""
dangerous = ['delete_file', 'drop_table', 'system_shutdown']
if context.tool_name in dangerous:
print(f"🛑 Blocked: {context.tool_name}")
return False
return None
@before_llm_call
def iteration_limit(context):
"""Prevent infinite loops."""
if context.iterations > 15:
print("⛔ Maximum iterations exceeded")
return False
return None
```
### Human-in-the-Loop
```python
@before_tool_call
def require_approval(context):
"""Require approval for sensitive operations."""
sensitive = ['send_email', 'make_payment', 'post_message']
if context.tool_name in sensitive:
response = context.request_human_input(
prompt=f"Approve {context.tool_name}?",
default_message="Type 'yes' to approve:"
)
if response.lower() != 'yes':
return False
return None
```
### Monitoring and Analytics
```python
from collections import defaultdict
import time
metrics = defaultdict(lambda: {'count': 0, 'total_time': 0})
@before_tool_call
def start_timer(context):
context.tool_input['_start'] = time.time()
return None
@after_tool_call
def track_metrics(context):
start = context.tool_input.get('_start', time.time())
duration = time.time() - start
metrics[context.tool_name]['count'] += 1
metrics[context.tool_name]['total_time'] += duration
return None
# View metrics
def print_metrics():
for tool, data in metrics.items():
avg = data['total_time'] / data['count']
print(f"{tool}: {data['count']} calls, {avg:.2f}s avg")
```
### Response Sanitization
```python
import re
@after_llm_call
def sanitize_llm_response(context):
"""Remove sensitive data from LLM responses."""
if not context.response:
return None
result = context.response
result = re.sub(r'(api[_-]?key)["\']?\s*[:=]\s*["\']?[\w-]+',
r'\1: [REDACTED]', result, flags=re.IGNORECASE)
return result
@after_tool_call
def sanitize_tool_result(context):
"""Remove sensitive data from tool results."""
if not context.tool_result:
return None
result = context.tool_result
result = re.sub(r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b',
'[EMAIL-REDACTED]', result)
return result
```
## Hook Management
### Clearing All Hooks
```python
from crewai.hooks import clear_all_global_hooks
# Clear all hooks at once
result = clear_all_global_hooks()
print(f"Cleared {result['total']} hooks")
# Output: {'llm_hooks': (2, 1), 'tool_hooks': (1, 2), 'total': (3, 3)}
```
### Clearing Specific Hook Types
```python
from crewai.hooks import (
clear_before_llm_call_hooks,
clear_after_llm_call_hooks,
clear_before_tool_call_hooks,
clear_after_tool_call_hooks
)
# Clear specific types
llm_before_count = clear_before_llm_call_hooks()
tool_after_count = clear_after_tool_call_hooks()
```
### Unregistering Individual Hooks
```python
from crewai.hooks import (
unregister_before_llm_call_hook,
unregister_after_tool_call_hook
)
def my_hook(context):
...
# Register
register_before_llm_call_hook(my_hook)
# Later, unregister
success = unregister_before_llm_call_hook(my_hook)
print(f"Unregistered: {success}")
```
## Best Practices
### 1. Keep Hooks Focused
Each hook should have a single, clear responsibility:
```python
# ✅ Good - focused responsibility
@before_tool_call
def validate_file_path(context):
if context.tool_name == 'read_file':
if '..' in context.tool_input.get('path', ''):
return False
return None
# ❌ Bad - too many responsibilities
@before_tool_call
def do_everything(context):
# Validation + logging + metrics + approval...
...
```
### 2. Handle Errors Gracefully
```python
@before_llm_call
def safe_hook(context):
try:
# Your logic
if some_condition:
return False
except Exception as e:
print(f"Hook error: {e}")
return None # Allow execution despite error
```
### 3. Modify Context In-Place
```python
# ✅ Correct - modify in-place
@before_llm_call
def add_context(context):
context.messages.append({"role": "system", "content": "Be concise"})
# ❌ Wrong - replaces reference
@before_llm_call
def wrong_approach(context):
context.messages = [{"role": "system", "content": "Be concise"}]
```
### 4. Use Type Hints
```python
from crewai.hooks import LLMCallHookContext, ToolCallHookContext
def my_llm_hook(context: LLMCallHookContext) -> bool | None:
# IDE autocomplete and type checking
return None
def my_tool_hook(context: ToolCallHookContext) -> str | None:
return None
```
### 5. Clean Up in Tests
```python
import pytest
from crewai.hooks import clear_all_global_hooks
@pytest.fixture(autouse=True)
def clean_hooks():
"""Reset hooks before each test."""
yield
clear_all_global_hooks()
```
## When to Use Which Hook
### Use LLM Hooks When:
- Implementing iteration limits
- Adding context or safety guidelines to prompts
- Tracking token usage and costs
- Sanitizing or transforming responses
- Implementing approval gates for LLM calls
- Debugging prompt/response interactions
### Use Tool Hooks When:
- Blocking dangerous or destructive operations
- Validating tool inputs before execution
- Implementing approval gates for sensitive actions
- Caching tool results
- Tracking tool usage and performance
- Sanitizing tool outputs
- Rate limiting tool calls
### Use Both When:
Building comprehensive observability, safety, or approval systems that need to monitor all agent operations.
## Alternative Registration Methods
### Programmatic Registration (Advanced)
For dynamic hook registration or when you need to register hooks programmatically:
```python
from crewai.hooks import (
register_before_llm_call_hook,
register_after_tool_call_hook
)
def my_hook(context):
return None
# Register programmatically
register_before_llm_call_hook(my_hook)
# Useful for:
# - Loading hooks from configuration
# - Conditional hook registration
# - Plugin systems
```
**Note:** For most use cases, decorators are cleaner and more maintainable.
## Performance Considerations
1. **Keep Hooks Fast**: Hooks execute on every call - avoid heavy computation
2. **Cache When Possible**: Store expensive validations or lookups
3. **Be Selective**: Use crew-scoped hooks when global hooks aren't needed
4. **Monitor Hook Overhead**: Profile hook execution time in production
5. **Lazy Import**: Import heavy dependencies only when needed
## Debugging Hooks
### Enable Debug Logging
```python
import logging
logging.basicConfig(level=logging.DEBUG)
logger = logging.getLogger(__name__)
@before_llm_call
def debug_hook(context):
logger.debug(f"LLM call: {context.agent.role}, iteration {context.iterations}")
return None
```
### Hook Execution Order
Hooks execute in registration order. If a before hook returns `False`, subsequent hooks don't execute:
```python
# Register order matters!
register_before_tool_call_hook(hook1) # Executes first
register_before_tool_call_hook(hook2) # Executes second
register_before_tool_call_hook(hook3) # Executes third
# If hook2 returns False:
# - hook1 executed
# - hook2 executed and returned False
# - hook3 NOT executed
# - Tool call blocked
```
## Related Documentation
- [LLM Call Hooks →](/learn/llm-hooks) - Detailed LLM hook documentation
- [Tool Call Hooks →](/learn/tool-hooks) - Detailed tool hook documentation
- [Before and After Kickoff Hooks →](/learn/before-and-after-kickoff-hooks) - Crew lifecycle hooks
- [Human-in-the-Loop →](/learn/human-in-the-loop) - Human input patterns
## Conclusion
Execution hooks provide powerful control over agent runtime behavior. Use them to implement safety guardrails, approval workflows, comprehensive monitoring, and custom business logic. Combined with proper error handling, type safety, and performance considerations, hooks enable production-ready, secure, and observable agent systems.

View File

@@ -97,7 +97,7 @@ project_crew = Crew(
```
<Tip>
For more details on creating and customizing a manager agent, check out the [Custom Manager Agent documentation](https://docs.crewai.com/how-to/custom-manager-agent#custom-manager-agent).
For more details on creating and customizing a manager agent, check out the [Custom Manager Agent documentation](/en/learn/custom-manager-agent).
</Tip>

427
docs/en/learn/llm-hooks.mdx Normal file
View File

@@ -0,0 +1,427 @@
---
title: LLM Call Hooks
description: Learn how to use LLM call hooks to intercept, modify, and control language model interactions in CrewAI
mode: "wide"
---
LLM Call Hooks provide fine-grained control over language model interactions during agent execution. These hooks allow you to intercept LLM calls, modify prompts, transform responses, implement approval gates, and add custom logging or monitoring.
## Overview
LLM hooks are executed at two critical points:
- **Before LLM Call**: Modify messages, validate inputs, or block execution
- **After LLM Call**: Transform responses, sanitize outputs, or modify conversation history
## Hook Types
### Before LLM Call Hooks
Executed before every LLM call, these hooks can:
- Inspect and modify messages sent to the LLM
- Block LLM execution based on conditions
- Implement rate limiting or approval gates
- Add context or system messages
- Log request details
**Signature:**
```python
def before_hook(context: LLMCallHookContext) -> bool | None:
# Return False to block execution
# Return True or None to allow execution
...
```
### After LLM Call Hooks
Executed after every LLM call, these hooks can:
- Modify or sanitize LLM responses
- Add metadata or formatting
- Log response details
- Update conversation history
- Implement content filtering
**Signature:**
```python
def after_hook(context: LLMCallHookContext) -> str | None:
# Return modified response string
# Return None to keep original response
...
```
## LLM Hook Context
The `LLMCallHookContext` object provides comprehensive access to execution state:
```python
class LLMCallHookContext:
executor: CrewAgentExecutor # Full executor reference
messages: list # Mutable message list
agent: Agent # Current agent
task: Task # Current task
crew: Crew # Crew instance
llm: BaseLLM # LLM instance
iterations: int # Current iteration count
response: str | None # LLM response (after hooks only)
```
### Modifying Messages
**Important:** Always modify messages in-place:
```python
# ✅ Correct - modify in-place
def add_context(context: LLMCallHookContext) -> None:
context.messages.append({"role": "system", "content": "Be concise"})
# ❌ Wrong - replaces list reference
def wrong_approach(context: LLMCallHookContext) -> None:
context.messages = [{"role": "system", "content": "Be concise"}]
```
## Registration Methods
### 1. Global Hook Registration
Register hooks that apply to all LLM calls across all crews:
```python
from crewai.hooks import register_before_llm_call_hook, register_after_llm_call_hook
def log_llm_call(context):
print(f"LLM call by {context.agent.role} at iteration {context.iterations}")
return None # Allow execution
register_before_llm_call_hook(log_llm_call)
```
### 2. Decorator-Based Registration
Use decorators for cleaner syntax:
```python
from crewai.hooks import before_llm_call, after_llm_call
@before_llm_call
def validate_iteration_count(context):
if context.iterations > 10:
print("⚠️ Exceeded maximum iterations")
return False # Block execution
return None
@after_llm_call
def sanitize_response(context):
if context.response and "API_KEY" in context.response:
return context.response.replace("API_KEY", "[REDACTED]")
return None
```
### 3. Crew-Scoped Hooks
Register hooks for a specific crew instance:
```python
@CrewBase
class MyProjCrew:
@before_llm_call_crew
def validate_inputs(self, context):
# Only applies to this crew
if context.iterations == 0:
print(f"Starting task: {context.task.description}")
return None
@after_llm_call_crew
def log_responses(self, context):
# Crew-specific response logging
print(f"Response length: {len(context.response)}")
return None
@crew
def crew(self) -> Crew:
return Crew(
agents=self.agents,
tasks=self.tasks,
process=Process.sequential,
verbose=True
)
```
## Common Use Cases
### 1. Iteration Limiting
```python
@before_llm_call
def limit_iterations(context: LLMCallHookContext) -> bool | None:
max_iterations = 15
if context.iterations > max_iterations:
print(f"⛔ Blocked: Exceeded {max_iterations} iterations")
return False # Block execution
return None
```
### 2. Human Approval Gate
```python
@before_llm_call
def require_approval(context: LLMCallHookContext) -> bool | None:
if context.iterations > 5:
response = context.request_human_input(
prompt=f"Iteration {context.iterations}: Approve LLM call?",
default_message="Press Enter to approve, or type 'no' to block:"
)
if response.lower() == "no":
print("🚫 LLM call blocked by user")
return False
return None
```
### 3. Adding System Context
```python
@before_llm_call
def add_guardrails(context: LLMCallHookContext) -> None:
# Add safety guidelines to every LLM call
context.messages.append({
"role": "system",
"content": "Ensure responses are factual and cite sources when possible."
})
return None
```
### 4. Response Sanitization
```python
@after_llm_call
def sanitize_sensitive_data(context: LLMCallHookContext) -> str | None:
if not context.response:
return None
# Remove sensitive patterns
import re
sanitized = context.response
sanitized = re.sub(r'\b\d{3}-\d{2}-\d{4}\b', '[SSN-REDACTED]', sanitized)
sanitized = re.sub(r'\b\d{4}[- ]?\d{4}[- ]?\d{4}[- ]?\d{4}\b', '[CARD-REDACTED]', sanitized)
return sanitized
```
### 5. Cost Tracking
```python
import tiktoken
@before_llm_call
def track_token_usage(context: LLMCallHookContext) -> None:
encoding = tiktoken.get_encoding("cl100k_base")
total_tokens = sum(
len(encoding.encode(msg.get("content", "")))
for msg in context.messages
)
print(f"📊 Input tokens: ~{total_tokens}")
return None
@after_llm_call
def track_response_tokens(context: LLMCallHookContext) -> None:
if context.response:
encoding = tiktoken.get_encoding("cl100k_base")
tokens = len(encoding.encode(context.response))
print(f"📊 Response tokens: ~{tokens}")
return None
```
### 6. Debug Logging
```python
@before_llm_call
def debug_request(context: LLMCallHookContext) -> None:
print(f"""
🔍 LLM Call Debug:
- Agent: {context.agent.role}
- Task: {context.task.description[:50]}...
- Iteration: {context.iterations}
- Message Count: {len(context.messages)}
- Last Message: {context.messages[-1] if context.messages else 'None'}
""")
return None
@after_llm_call
def debug_response(context: LLMCallHookContext) -> None:
if context.response:
print(f"✅ Response Preview: {context.response[:100]}...")
return None
```
## Hook Management
### Unregistering Hooks
```python
from crewai.hooks import (
unregister_before_llm_call_hook,
unregister_after_llm_call_hook
)
# Unregister specific hook
def my_hook(context):
...
register_before_llm_call_hook(my_hook)
# Later...
unregister_before_llm_call_hook(my_hook) # Returns True if found
```
### Clearing Hooks
```python
from crewai.hooks import (
clear_before_llm_call_hooks,
clear_after_llm_call_hooks,
clear_all_llm_call_hooks
)
# Clear specific hook type
count = clear_before_llm_call_hooks()
print(f"Cleared {count} before hooks")
# Clear all LLM hooks
before_count, after_count = clear_all_llm_call_hooks()
print(f"Cleared {before_count} before and {after_count} after hooks")
```
### Listing Registered Hooks
```python
from crewai.hooks import (
get_before_llm_call_hooks,
get_after_llm_call_hooks
)
# Get current hooks
before_hooks = get_before_llm_call_hooks()
after_hooks = get_after_llm_call_hooks()
print(f"Registered: {len(before_hooks)} before, {len(after_hooks)} after")
```
## Advanced Patterns
### Conditional Hook Execution
```python
@before_llm_call
def conditional_blocking(context: LLMCallHookContext) -> bool | None:
# Only block for specific agents
if context.agent.role == "researcher" and context.iterations > 10:
return False
# Only block for specific tasks
if "sensitive" in context.task.description.lower() and context.iterations > 5:
return False
return None
```
### Context-Aware Modifications
```python
@before_llm_call
def adaptive_prompting(context: LLMCallHookContext) -> None:
# Add different context based on iteration
if context.iterations == 0:
context.messages.append({
"role": "system",
"content": "Start with a high-level overview."
})
elif context.iterations > 3:
context.messages.append({
"role": "system",
"content": "Focus on specific details and provide examples."
})
return None
```
### Chaining Hooks
```python
# Multiple hooks execute in registration order
@before_llm_call
def first_hook(context):
print("1. First hook executed")
return None
@before_llm_call
def second_hook(context):
print("2. Second hook executed")
return None
@before_llm_call
def blocking_hook(context):
if context.iterations > 10:
print("3. Blocking hook - execution stopped")
return False # Subsequent hooks won't execute
print("3. Blocking hook - execution allowed")
return None
```
## Best Practices
1. **Keep Hooks Focused**: Each hook should have a single responsibility
2. **Avoid Heavy Computation**: Hooks execute on every LLM call
3. **Handle Errors Gracefully**: Use try-except to prevent hook failures from breaking execution
4. **Use Type Hints**: Leverage `LLMCallHookContext` for better IDE support
5. **Document Hook Behavior**: Especially for blocking conditions
6. **Test Hooks Independently**: Unit test hooks before using in production
7. **Clear Hooks in Tests**: Use `clear_all_llm_call_hooks()` between test runs
8. **Modify In-Place**: Always modify `context.messages` in-place, never replace
## Error Handling
```python
@before_llm_call
def safe_hook(context: LLMCallHookContext) -> bool | None:
try:
# Your hook logic
if some_condition:
return False
except Exception as e:
print(f"⚠️ Hook error: {e}")
# Decide: allow or block on error
return None # Allow execution despite error
```
## Type Safety
```python
from crewai.hooks import LLMCallHookContext, BeforeLLMCallHookType, AfterLLMCallHookType
# Explicit type annotations
def my_before_hook(context: LLMCallHookContext) -> bool | None:
return None
def my_after_hook(context: LLMCallHookContext) -> str | None:
return None
# Type-safe registration
register_before_llm_call_hook(my_before_hook)
register_after_llm_call_hook(my_after_hook)
```
## Troubleshooting
### Hook Not Executing
- Verify hook is registered before crew execution
- Check if previous hook returned `False` (blocks subsequent hooks)
- Ensure hook signature matches expected type
### Message Modifications Not Persisting
- Use in-place modifications: `context.messages.append()`
- Don't replace the list: `context.messages = []`
### Response Modifications Not Working
- Return the modified string from after hooks
- Returning `None` keeps the original response
## Conclusion
LLM Call Hooks provide powerful capabilities for controlling and monitoring language model interactions in CrewAI. Use them to implement safety guardrails, approval gates, logging, cost tracking, and response sanitization. Combined with proper error handling and type safety, hooks enable robust and production-ready agent systems.

View File

@@ -0,0 +1,600 @@
---
title: Tool Call Hooks
description: Learn how to use tool call hooks to intercept, modify, and control tool execution in CrewAI
mode: "wide"
---
Tool Call Hooks provide fine-grained control over tool execution during agent operations. These hooks allow you to intercept tool calls, modify inputs, transform outputs, implement safety checks, and add comprehensive logging or monitoring.
## Overview
Tool hooks are executed at two critical points:
- **Before Tool Call**: Modify inputs, validate parameters, or block execution
- **After Tool Call**: Transform results, sanitize outputs, or log execution details
## Hook Types
### Before Tool Call Hooks
Executed before every tool execution, these hooks can:
- Inspect and modify tool inputs
- Block tool execution based on conditions
- Implement approval gates for dangerous operations
- Validate parameters
- Log tool invocations
**Signature:**
```python
def before_hook(context: ToolCallHookContext) -> bool | None:
# Return False to block execution
# Return True or None to allow execution
...
```
### After Tool Call Hooks
Executed after every tool execution, these hooks can:
- Modify or sanitize tool results
- Add metadata or formatting
- Log execution results
- Implement result validation
- Transform output formats
**Signature:**
```python
def after_hook(context: ToolCallHookContext) -> str | None:
# Return modified result string
# Return None to keep original result
...
```
## Tool Hook Context
The `ToolCallHookContext` object provides comprehensive access to tool execution state:
```python
class ToolCallHookContext:
tool_name: str # Name of the tool being called
tool_input: dict[str, Any] # Mutable tool input parameters
tool: CrewStructuredTool # Tool instance reference
agent: Agent | BaseAgent | None # Agent executing the tool
task: Task | None # Current task
crew: Crew | None # Crew instance
tool_result: str | None # Tool result (after hooks only)
```
### Modifying Tool Inputs
**Important:** Always modify tool inputs in-place:
```python
# ✅ Correct - modify in-place
def sanitize_input(context: ToolCallHookContext) -> None:
context.tool_input['query'] = context.tool_input['query'].lower()
# ❌ Wrong - replaces dict reference
def wrong_approach(context: ToolCallHookContext) -> None:
context.tool_input = {'query': 'new query'}
```
## Registration Methods
### 1. Global Hook Registration
Register hooks that apply to all tool calls across all crews:
```python
from crewai.hooks import register_before_tool_call_hook, register_after_tool_call_hook
def log_tool_call(context):
print(f"Tool: {context.tool_name}")
print(f"Input: {context.tool_input}")
return None # Allow execution
register_before_tool_call_hook(log_tool_call)
```
### 2. Decorator-Based Registration
Use decorators for cleaner syntax:
```python
from crewai.hooks import before_tool_call, after_tool_call
@before_tool_call
def block_dangerous_tools(context):
dangerous_tools = ['delete_database', 'drop_table', 'rm_rf']
if context.tool_name in dangerous_tools:
print(f"⛔ Blocked dangerous tool: {context.tool_name}")
return False # Block execution
return None
@after_tool_call
def sanitize_results(context):
if context.tool_result and "password" in context.tool_result.lower():
return context.tool_result.replace("password", "[REDACTED]")
return None
```
### 3. Crew-Scoped Hooks
Register hooks for a specific crew instance:
```python
@CrewBase
class MyProjCrew:
@before_tool_call_crew
def validate_tool_inputs(self, context):
# Only applies to this crew
if context.tool_name == "web_search":
if not context.tool_input.get('query'):
print("❌ Invalid search query")
return False
return None
@after_tool_call_crew
def log_tool_results(self, context):
# Crew-specific tool logging
print(f"✅ {context.tool_name} completed")
return None
@crew
def crew(self) -> Crew:
return Crew(
agents=self.agents,
tasks=self.tasks,
process=Process.sequential,
verbose=True
)
```
## Common Use Cases
### 1. Safety Guardrails
```python
@before_tool_call
def safety_check(context: ToolCallHookContext) -> bool | None:
# Block tools that could cause harm
destructive_tools = [
'delete_file',
'drop_table',
'remove_user',
'system_shutdown'
]
if context.tool_name in destructive_tools:
print(f"🛑 Blocked destructive tool: {context.tool_name}")
return False
# Warn on sensitive operations
sensitive_tools = ['send_email', 'post_to_social_media', 'charge_payment']
if context.tool_name in sensitive_tools:
print(f"⚠️ Executing sensitive tool: {context.tool_name}")
return None
```
### 2. Human Approval Gate
```python
@before_tool_call
def require_approval_for_actions(context: ToolCallHookContext) -> bool | None:
approval_required = [
'send_email',
'make_purchase',
'delete_file',
'post_message'
]
if context.tool_name in approval_required:
response = context.request_human_input(
prompt=f"Approve {context.tool_name}?",
default_message=f"Input: {context.tool_input}\nType 'yes' to approve:"
)
if response.lower() != 'yes':
print(f"❌ Tool execution denied: {context.tool_name}")
return False
return None
```
### 3. Input Validation and Sanitization
```python
@before_tool_call
def validate_and_sanitize_inputs(context: ToolCallHookContext) -> bool | None:
# Validate search queries
if context.tool_name == 'web_search':
query = context.tool_input.get('query', '')
if len(query) < 3:
print("❌ Search query too short")
return False
# Sanitize query
context.tool_input['query'] = query.strip().lower()
# Validate file paths
if context.tool_name == 'read_file':
path = context.tool_input.get('path', '')
if '..' in path or path.startswith('/'):
print("❌ Invalid file path")
return False
return None
```
### 4. Result Sanitization
```python
@after_tool_call
def sanitize_sensitive_data(context: ToolCallHookContext) -> str | None:
if not context.tool_result:
return None
import re
result = context.tool_result
# Remove API keys
result = re.sub(
r'(api[_-]?key|token)["\']?\s*[:=]\s*["\']?[\w-]+',
r'\1: [REDACTED]',
result,
flags=re.IGNORECASE
)
# Remove email addresses
result = re.sub(
r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b',
'[EMAIL-REDACTED]',
result
)
# Remove credit card numbers
result = re.sub(
r'\b\d{4}[- ]?\d{4}[- ]?\d{4}[- ]?\d{4}\b',
'[CARD-REDACTED]',
result
)
return result
```
### 5. Tool Usage Analytics
```python
import time
from collections import defaultdict
tool_stats = defaultdict(lambda: {'count': 0, 'total_time': 0, 'failures': 0})
@before_tool_call
def start_timer(context: ToolCallHookContext) -> None:
context.tool_input['_start_time'] = time.time()
return None
@after_tool_call
def track_tool_usage(context: ToolCallHookContext) -> None:
start_time = context.tool_input.get('_start_time', time.time())
duration = time.time() - start_time
tool_stats[context.tool_name]['count'] += 1
tool_stats[context.tool_name]['total_time'] += duration
if not context.tool_result or 'error' in context.tool_result.lower():
tool_stats[context.tool_name]['failures'] += 1
print(f"""
📊 Tool Stats for {context.tool_name}:
- Executions: {tool_stats[context.tool_name]['count']}
- Avg Time: {tool_stats[context.tool_name]['total_time'] / tool_stats[context.tool_name]['count']:.2f}s
- Failures: {tool_stats[context.tool_name]['failures']}
""")
return None
```
### 6. Rate Limiting
```python
from collections import defaultdict
from datetime import datetime, timedelta
tool_call_history = defaultdict(list)
@before_tool_call
def rate_limit_tools(context: ToolCallHookContext) -> bool | None:
tool_name = context.tool_name
now = datetime.now()
# Clean old entries (older than 1 minute)
tool_call_history[tool_name] = [
call_time for call_time in tool_call_history[tool_name]
if now - call_time < timedelta(minutes=1)
]
# Check rate limit (max 10 calls per minute)
if len(tool_call_history[tool_name]) >= 10:
print(f"🚫 Rate limit exceeded for {tool_name}")
return False
# Record this call
tool_call_history[tool_name].append(now)
return None
```
### 7. Caching Tool Results
```python
import hashlib
import json
tool_cache = {}
def cache_key(tool_name: str, tool_input: dict) -> str:
"""Generate cache key from tool name and input."""
input_str = json.dumps(tool_input, sort_keys=True)
return hashlib.md5(f"{tool_name}:{input_str}".encode()).hexdigest()
@before_tool_call
def check_cache(context: ToolCallHookContext) -> bool | None:
key = cache_key(context.tool_name, context.tool_input)
if key in tool_cache:
print(f"💾 Cache hit for {context.tool_name}")
# Note: Can't return cached result from before hook
# Would need to implement this differently
return None
@after_tool_call
def cache_result(context: ToolCallHookContext) -> None:
if context.tool_result:
key = cache_key(context.tool_name, context.tool_input)
tool_cache[key] = context.tool_result
print(f"💾 Cached result for {context.tool_name}")
return None
```
### 8. Debug Logging
```python
@before_tool_call
def debug_tool_call(context: ToolCallHookContext) -> None:
print(f"""
🔍 Tool Call Debug:
- Tool: {context.tool_name}
- Agent: {context.agent.role if context.agent else 'Unknown'}
- Task: {context.task.description[:50] if context.task else 'Unknown'}...
- Input: {context.tool_input}
""")
return None
@after_tool_call
def debug_tool_result(context: ToolCallHookContext) -> None:
if context.tool_result:
result_preview = context.tool_result[:200]
print(f"✅ Result Preview: {result_preview}...")
else:
print("⚠️ No result returned")
return None
```
## Hook Management
### Unregistering Hooks
```python
from crewai.hooks import (
unregister_before_tool_call_hook,
unregister_after_tool_call_hook
)
# Unregister specific hook
def my_hook(context):
...
register_before_tool_call_hook(my_hook)
# Later...
success = unregister_before_tool_call_hook(my_hook)
print(f"Unregistered: {success}")
```
### Clearing Hooks
```python
from crewai.hooks import (
clear_before_tool_call_hooks,
clear_after_tool_call_hooks,
clear_all_tool_call_hooks
)
# Clear specific hook type
count = clear_before_tool_call_hooks()
print(f"Cleared {count} before hooks")
# Clear all tool hooks
before_count, after_count = clear_all_tool_call_hooks()
print(f"Cleared {before_count} before and {after_count} after hooks")
```
### Listing Registered Hooks
```python
from crewai.hooks import (
get_before_tool_call_hooks,
get_after_tool_call_hooks
)
# Get current hooks
before_hooks = get_before_tool_call_hooks()
after_hooks = get_after_tool_call_hooks()
print(f"Registered: {len(before_hooks)} before, {len(after_hooks)} after")
```
## Advanced Patterns
### Conditional Hook Execution
```python
@before_tool_call
def conditional_blocking(context: ToolCallHookContext) -> bool | None:
# Only block for specific agents
if context.agent and context.agent.role == "junior_agent":
if context.tool_name in ['delete_file', 'send_email']:
print(f"❌ Junior agents cannot use {context.tool_name}")
return False
# Only block during specific tasks
if context.task and "sensitive" in context.task.description.lower():
if context.tool_name == 'web_search':
print("❌ Web search blocked for sensitive tasks")
return False
return None
```
### Context-Aware Input Modification
```python
@before_tool_call
def enhance_tool_inputs(context: ToolCallHookContext) -> None:
# Add context based on agent role
if context.agent and context.agent.role == "researcher":
if context.tool_name == 'web_search':
# Add domain restrictions for researchers
context.tool_input['domains'] = ['edu', 'gov', 'org']
# Add context based on task
if context.task and "urgent" in context.task.description.lower():
if context.tool_name == 'send_email':
context.tool_input['priority'] = 'high'
return None
```
### Tool Chain Monitoring
```python
tool_call_chain = []
@before_tool_call
def track_tool_chain(context: ToolCallHookContext) -> None:
tool_call_chain.append({
'tool': context.tool_name,
'timestamp': time.time(),
'agent': context.agent.role if context.agent else 'Unknown'
})
# Detect potential infinite loops
recent_calls = tool_call_chain[-5:]
if len(recent_calls) == 5 and all(c['tool'] == context.tool_name for c in recent_calls):
print(f"⚠️ Warning: {context.tool_name} called 5 times in a row")
return None
```
## Best Practices
1. **Keep Hooks Focused**: Each hook should have a single responsibility
2. **Avoid Heavy Computation**: Hooks execute on every tool call
3. **Handle Errors Gracefully**: Use try-except to prevent hook failures
4. **Use Type Hints**: Leverage `ToolCallHookContext` for better IDE support
5. **Document Blocking Conditions**: Make it clear when/why tools are blocked
6. **Test Hooks Independently**: Unit test hooks before using in production
7. **Clear Hooks in Tests**: Use `clear_all_tool_call_hooks()` between test runs
8. **Modify In-Place**: Always modify `context.tool_input` in-place, never replace
9. **Log Important Decisions**: Especially when blocking tool execution
10. **Consider Performance**: Cache expensive validations when possible
## Error Handling
```python
@before_tool_call
def safe_validation(context: ToolCallHookContext) -> bool | None:
try:
# Your validation logic
if not validate_input(context.tool_input):
return False
except Exception as e:
print(f"⚠️ Hook error: {e}")
# Decide: allow or block on error
return None # Allow execution despite error
```
## Type Safety
```python
from crewai.hooks import ToolCallHookContext, BeforeToolCallHookType, AfterToolCallHookType
# Explicit type annotations
def my_before_hook(context: ToolCallHookContext) -> bool | None:
return None
def my_after_hook(context: ToolCallHookContext) -> str | None:
return None
# Type-safe registration
register_before_tool_call_hook(my_before_hook)
register_after_tool_call_hook(my_after_hook)
```
## Integration with Existing Tools
### Wrapping Existing Validation
```python
def existing_validator(tool_name: str, inputs: dict) -> bool:
"""Your existing validation function."""
# Your validation logic
return True
@before_tool_call
def integrate_validator(context: ToolCallHookContext) -> bool | None:
if not existing_validator(context.tool_name, context.tool_input):
print(f"❌ Validation failed for {context.tool_name}")
return False
return None
```
### Logging to External Systems
```python
import logging
logger = logging.getLogger(__name__)
@before_tool_call
def log_to_external_system(context: ToolCallHookContext) -> None:
logger.info(f"Tool call: {context.tool_name}", extra={
'tool_name': context.tool_name,
'tool_input': context.tool_input,
'agent': context.agent.role if context.agent else None
})
return None
```
## Troubleshooting
### Hook Not Executing
- Verify hook is registered before crew execution
- Check if previous hook returned `False` (blocks execution and subsequent hooks)
- Ensure hook signature matches expected type
### Input Modifications Not Working
- Use in-place modifications: `context.tool_input['key'] = value`
- Don't replace the dict: `context.tool_input = {}`
### Result Modifications Not Working
- Return the modified string from after hooks
- Returning `None` keeps the original result
- Ensure the tool actually returned a result
### Tool Blocked Unexpectedly
- Check all before hooks for blocking conditions
- Verify hook execution order
- Add debug logging to identify which hook is blocking
## Conclusion
Tool Call Hooks provide powerful capabilities for controlling and monitoring tool execution in CrewAI. Use them to implement safety guardrails, approval gates, input validation, result sanitization, logging, and analytics. Combined with proper error handling and type safety, hooks enable secure and production-ready agent systems with comprehensive observability.

View File

@@ -11,9 +11,13 @@ The [Model Context Protocol](https://modelcontextprotocol.io/introduction) (MCP)
CrewAI offers **two approaches** for MCP integration:
### Simple DSL Integration** (Recommended)
### 🚀 **Simple DSL Integration** (Recommended)
Use the `mcps` field directly on agents for seamless MCP tool integration:
Use the `mcps` field directly on agents for seamless MCP tool integration. The DSL supports both **string references** (for quick setup) and **structured configurations** (for full control).
#### String-Based References (Quick Setup)
Perfect for remote HTTPS servers and CrewAI AMP marketplace:
```python
from crewai import Agent
@@ -32,6 +36,46 @@ agent = Agent(
# MCP tools are now automatically available to your agent!
```
#### Structured Configurations (Full Control)
For complete control over connection settings, tool filtering, and all transport types:
```python
from crewai import Agent
from crewai.mcp import MCPServerStdio, MCPServerHTTP, MCPServerSSE
from crewai.mcp.filters import create_static_tool_filter
agent = Agent(
role="Advanced Research Analyst",
goal="Research with full control over MCP connections",
backstory="Expert researcher with advanced tool access",
mcps=[
# Stdio transport for local servers
MCPServerStdio(
command="npx",
args=["-y", "@modelcontextprotocol/server-filesystem"],
env={"API_KEY": "your_key"},
tool_filter=create_static_tool_filter(
allowed_tool_names=["read_file", "list_directory"]
),
cache_tools_list=True,
),
# HTTP/Streamable HTTP transport for remote servers
MCPServerHTTP(
url="https://api.example.com/mcp",
headers={"Authorization": "Bearer your_token"},
streamable=True,
cache_tools_list=True,
),
# SSE transport for real-time streaming
MCPServerSSE(
url="https://stream.example.com/mcp/sse",
headers={"Authorization": "Bearer your_token"},
),
]
)
```
### 🔧 **Advanced: MCPServerAdapter** (For Complex Scenarios)
For advanced use cases requiring manual connection management, the `crewai-tools` library provides the `MCPServerAdapter` class.
@@ -68,12 +112,14 @@ uv pip install 'crewai-tools[mcp]'
## Quick Start: Simple DSL Integration
The easiest way to integrate MCP servers is using the `mcps` field on your agents:
The easiest way to integrate MCP servers is using the `mcps` field on your agents. You can use either string references or structured configurations.
### Quick Start with String References
```python
from crewai import Agent, Task, Crew
# Create agent with MCP tools
# Create agent with MCP tools using string references
research_agent = Agent(
role="Research Analyst",
goal="Find and analyze information using advanced search tools",
@@ -96,13 +142,53 @@ crew = Crew(agents=[research_agent], tasks=[research_task])
result = crew.kickoff()
```
### Quick Start with Structured Configurations
```python
from crewai import Agent, Task, Crew
from crewai.mcp import MCPServerStdio, MCPServerHTTP, MCPServerSSE
# Create agent with structured MCP configurations
research_agent = Agent(
role="Research Analyst",
goal="Find and analyze information using advanced search tools",
backstory="Expert researcher with access to multiple data sources",
mcps=[
# Local stdio server
MCPServerStdio(
command="python",
args=["local_server.py"],
env={"API_KEY": "your_key"},
),
# Remote HTTP server
MCPServerHTTP(
url="https://api.research.com/mcp",
headers={"Authorization": "Bearer your_token"},
),
]
)
# Create task
research_task = Task(
description="Research the latest developments in AI agent frameworks",
expected_output="Comprehensive research report with citations",
agent=research_agent
)
# Create and run crew
crew = Crew(agents=[research_agent], tasks=[research_task])
result = crew.kickoff()
```
That's it! The MCP tools are automatically discovered and available to your agent.
## MCP Reference Formats
The `mcps` field supports various reference formats for maximum flexibility:
The `mcps` field supports both **string references** (for quick setup) and **structured configurations** (for full control). You can mix both formats in the same list.
### External MCP Servers
### String-Based References
#### External MCP Servers
```python
mcps=[
@@ -117,7 +203,7 @@ mcps=[
]
```
### CrewAI AMP Marketplace
#### CrewAI AMP Marketplace
```python
mcps=[
@@ -133,17 +219,166 @@ mcps=[
]
```
### Mixed References
### Structured Configurations
#### Stdio Transport (Local Servers)
Perfect for local MCP servers that run as processes:
```python
from crewai.mcp import MCPServerStdio
from crewai.mcp.filters import create_static_tool_filter
mcps=[
"https://external-api.com/mcp", # External server
"https://weather.service.com/mcp#forecast", # Specific external tool
"crewai-amp:financial-insights", # AMP service
"crewai-amp:data-analysis#sentiment_tool" # Specific AMP tool
MCPServerStdio(
command="npx",
args=["-y", "@modelcontextprotocol/server-filesystem"],
env={"API_KEY": "your_key"},
tool_filter=create_static_tool_filter(
allowed_tool_names=["read_file", "write_file"]
),
cache_tools_list=True,
),
# Python-based server
MCPServerStdio(
command="python",
args=["path/to/server.py"],
env={"UV_PYTHON": "3.12", "API_KEY": "your_key"},
),
]
```
#### HTTP/Streamable HTTP Transport (Remote Servers)
For remote MCP servers over HTTP/HTTPS:
```python
from crewai.mcp import MCPServerHTTP
mcps=[
# Streamable HTTP (default)
MCPServerHTTP(
url="https://api.example.com/mcp",
headers={"Authorization": "Bearer your_token"},
streamable=True,
cache_tools_list=True,
),
# Standard HTTP
MCPServerHTTP(
url="https://api.example.com/mcp",
headers={"Authorization": "Bearer your_token"},
streamable=False,
),
]
```
#### SSE Transport (Real-Time Streaming)
For remote servers using Server-Sent Events:
```python
from crewai.mcp import MCPServerSSE
mcps=[
MCPServerSSE(
url="https://stream.example.com/mcp/sse",
headers={"Authorization": "Bearer your_token"},
cache_tools_list=True,
),
]
```
### Mixed References
You can combine string references and structured configurations:
```python
from crewai.mcp import MCPServerStdio, MCPServerHTTP
mcps=[
# String references
"https://external-api.com/mcp", # External server
"crewai-amp:financial-insights", # AMP service
# Structured configurations
MCPServerStdio(
command="npx",
args=["-y", "@modelcontextprotocol/server-filesystem"],
),
MCPServerHTTP(
url="https://api.example.com/mcp",
headers={"Authorization": "Bearer token"},
),
]
```
### Tool Filtering
Structured configurations support advanced tool filtering:
```python
from crewai.mcp import MCPServerStdio
from crewai.mcp.filters import create_static_tool_filter, create_dynamic_tool_filter, ToolFilterContext
# Static filtering (allow/block lists)
static_filter = create_static_tool_filter(
allowed_tool_names=["read_file", "write_file"],
blocked_tool_names=["delete_file"],
)
# Dynamic filtering (context-aware)
def dynamic_filter(context: ToolFilterContext, tool: dict) -> bool:
# Block dangerous tools for certain agent roles
if context.agent.role == "Code Reviewer":
if "delete" in tool.get("name", "").lower():
return False
return True
mcps=[
MCPServerStdio(
command="npx",
args=["-y", "@modelcontextprotocol/server-filesystem"],
tool_filter=static_filter, # or dynamic_filter
),
]
```
## Configuration Parameters
Each transport type supports specific configuration options:
### MCPServerStdio Parameters
- **`command`** (required): Command to execute (e.g., `"python"`, `"node"`, `"npx"`, `"uvx"`)
- **`args`** (optional): List of command arguments (e.g., `["server.py"]` or `["-y", "@mcp/server"]`)
- **`env`** (optional): Dictionary of environment variables to pass to the process
- **`tool_filter`** (optional): Tool filter function for filtering available tools
- **`cache_tools_list`** (optional): Whether to cache the tool list for faster subsequent access (default: `False`)
### MCPServerHTTP Parameters
- **`url`** (required): Server URL (e.g., `"https://api.example.com/mcp"`)
- **`headers`** (optional): Dictionary of HTTP headers for authentication or other purposes
- **`streamable`** (optional): Whether to use streamable HTTP transport (default: `True`)
- **`tool_filter`** (optional): Tool filter function for filtering available tools
- **`cache_tools_list`** (optional): Whether to cache the tool list for faster subsequent access (default: `False`)
### MCPServerSSE Parameters
- **`url`** (required): Server URL (e.g., `"https://api.example.com/mcp/sse"`)
- **`headers`** (optional): Dictionary of HTTP headers for authentication or other purposes
- **`tool_filter`** (optional): Tool filter function for filtering available tools
- **`cache_tools_list`** (optional): Whether to cache the tool list for faster subsequent access (default: `False`)
### Common Parameters
All transport types support:
- **`tool_filter`**: Filter function to control which tools are available. Can be:
- `None` (default): All tools are available
- Static filter: Created with `create_static_tool_filter()` for allow/block lists
- Dynamic filter: Created with `create_dynamic_tool_filter()` for context-aware filtering
- **`cache_tools_list`**: When `True`, caches the tool list after first discovery to improve performance on subsequent connections
## Key Features
- 🔄 **Automatic Tool Discovery**: Tools are automatically discovered and integrated
@@ -152,26 +387,47 @@ mcps=[
- 🛡️ **Error Resilience**: Graceful handling of unavailable servers
- ⏱️ **Timeout Protection**: Built-in timeouts prevent hanging connections
- 📊 **Transparent Integration**: Works seamlessly with existing CrewAI features
- 🔧 **Full Transport Support**: Stdio, HTTP/Streamable HTTP, and SSE transports
- 🎯 **Advanced Filtering**: Static and dynamic tool filtering capabilities
- 🔐 **Flexible Authentication**: Support for headers, environment variables, and query parameters
## Error Handling
The MCP DSL integration is designed to be resilient:
The MCP DSL integration is designed to be resilient and handles failures gracefully:
```python
from crewai import Agent
from crewai.mcp import MCPServerStdio, MCPServerHTTP
agent = Agent(
role="Resilient Agent",
goal="Continue working despite server issues",
backstory="Agent that handles failures gracefully",
mcps=[
# String references
"https://reliable-server.com/mcp", # Will work
"https://unreachable-server.com/mcp", # Will be skipped gracefully
"https://slow-server.com/mcp", # Will timeout gracefully
"crewai-amp:working-service" # Will work
"crewai-amp:working-service", # Will work
# Structured configs
MCPServerStdio(
command="python",
args=["reliable_server.py"], # Will work
),
MCPServerHTTP(
url="https://slow-server.com/mcp", # Will timeout gracefully
),
]
)
# Agent will use tools from working servers and log warnings for failing ones
```
All connection errors are handled gracefully:
- **Connection failures**: Logged as warnings, agent continues with available tools
- **Timeout errors**: Connections timeout after 30 seconds (configurable)
- **Authentication errors**: Logged clearly for debugging
- **Invalid configurations**: Validation errors are raised at agent creation time
## Advanced: MCPServerAdapter
For complex scenarios requiring manual connection management, use the `MCPServerAdapter` class from `crewai-tools`. Using a Python context manager (`with` statement) is the recommended approach as it automatically handles starting and stopping the connection to the MCP server.

View File

@@ -733,9 +733,7 @@ Here's a basic configuration to route requests to OpenAI, specifically using GPT
- Collect relevant metadata to filter logs
- Enforce access permissions
Create API keys through:
- [Portkey App](https://app.portkey.ai/)
- [API Key Management API](/en/api-reference/admin-api/control-plane/api-keys/create-api-key)
Create API keys through the [Portkey App](https://app.portkey.ai/)
Example using Python SDK:
```python
@@ -758,7 +756,7 @@ Here's a basic configuration to route requests to OpenAI, specifically using GPT
)
```
For detailed key management instructions, see our [API Keys documentation](/en/api-reference/admin-api/control-plane/api-keys/create-api-key).
For detailed key management instructions, see the [Portkey documentation](https://portkey.ai/docs).
</Accordion>
<Accordion title="Step 4: Deploy & Monitor">

View File

@@ -18,7 +18,7 @@ These tools enable your agents to interact with cloud services, access cloud sto
Write and upload files to Amazon S3 storage.
</Card>
<Card title="Bedrock Invoke Agent" icon="aws" href="/en/tools/cloud-storage/bedrockinvokeagenttool">
<Card title="Bedrock Invoke Agent" icon="aws" href="/en/tools/integration/bedrockinvokeagenttool">
Invoke Amazon Bedrock agents for AI-powered tasks.
</Card>

View File

@@ -632,11 +632,11 @@ mode: "wide"
## 기여
기여를 원하시면, [기여 가이드](CONTRIBUTING.md)를 참조하세요.
기여를 원하시면, [기여 가이드](https://github.com/crewAIInc/crewAI/blob/main/CONTRIBUTING.md)를 참조하세요.
## 라이센스
이 프로젝트는 MIT 라이센스 하에 배포됩니다. 자세한 내용은 [LICENSE](LICENSE) 파일을 확인하세요.
이 프로젝트는 MIT 라이센스 하에 배포됩니다. 자세한 내용은 [LICENSE](https://github.com/crewAIInc/crewAI/blob/main/LICENSE) 파일을 확인하세요.
</Update>
<Update label="2025년 5월 22일">

View File

@@ -706,7 +706,7 @@ class KnowledgeMonitorListener(BaseEventListener):
knowledge_monitor = KnowledgeMonitorListener()
```
이벤트 사용에 대한 자세한 내용은 [이벤트 리스너](https://docs.crewai.com/concepts/event-listener) 문서를 참고하세요.
이벤트 사용에 대한 자세한 내용은 [이벤트 리스너](/ko/concepts/event-listener) 문서를 참고하세요.
### 맞춤형 지식 소스

View File

@@ -748,7 +748,7 @@ CrewAI는 LLM의 스트리밍 응답을 지원하여, 애플리케이션이 출
```
<Tip>
[자세한 내용은 여기를 클릭하세요](https://docs.crewai.com/concepts/event-listener#event-listeners)
[자세한 내용은 여기를 클릭하세요](/ko/concepts/event-listener#event-listeners)
</Tip>
</Tab>

View File

@@ -36,7 +36,7 @@ mode: "wide"
<Card title="도구 & 통합" href="/ko/enterprise/features/tools-and-integrations" icon="wrench">
에이전트가 사용할 외부 앱 연결 및 내부 도구 관리.
</Card>
<Card title="도구 저장소" href="/ko/enterprise/features/tool-repository" icon="toolbox">
<Card title="도구 저장소" href="/ko/enterprise/guides/tool-repository" icon="toolbox">
크루 기능을 확장할 수 있도록 도구를 게시하고 설치.
</Card>
<Card title="에이전트 저장소" href="/ko/enterprise/features/agent-repositories" icon="people-group">

View File

@@ -231,7 +231,7 @@ mode: "wide"
## 관련 문서
<CardGroup cols={2}>
<Card title="도구 저장소" href="/ko/enterprise/features/tool-repository" icon="toolbox">
<Card title="도구 저장소" href="/ko/enterprise/guides/tool-repository" icon="toolbox">
크루 기능을 확장할 수 있도록 도구를 게시하고 설치하세요.
</Card>
<Card title="Webhook 자동화" href="/ko/enterprise/guides/webhook-automation" icon="bolt">

View File

@@ -21,7 +21,7 @@ Tool Repository는 CrewAI 도구를 위한 패키지 관리자입니다. 사용
Tool Repository를 사용하기 전에 다음이 준비되어 있어야 합니다:
- [CrewAI AMP](https://app.crewai.com) 계정
- [CrewAI CLI](https://docs.crewai.com/concepts/cli#cli) 설치됨
- [CrewAI CLI](/ko/concepts/cli#cli) 설치됨
- uv>=0.5.0 이 설치되어 있어야 합니다. [업그레이드 방법](https://docs.astral.sh/uv/getting-started/installation/#upgrading-uv)을 참고하세요.
- [Git](https://git-scm.com) 설치 및 구성 완료
- CrewAI AMP 조직에서 도구를 게시하거나 설치할 수 있는 액세스 권한
@@ -66,7 +66,7 @@ crewai tool publish
crewai tool publish --public
```
도구 빌드에 대한 자세한 내용은 [나만의 도구 만들기](https://docs.crewai.com/concepts/tools#creating-your-own-tools)를 참고하세요.
도구 빌드에 대한 자세한 내용은 [나만의 도구 만들기](/ko/concepts/tools#creating-your-own-tools)를 참고하세요.
## 도구 업데이트

View File

@@ -49,7 +49,7 @@ mode: "wide"
에이전트 실행에 인간 입력을 통합하려면 작업 정의에서 `human_input` 플래그를 설정하세요. 활성화하면, 에이전트가 최종 답변을 제공하기 전에 사용자에게 입력을 요청합니다. 이 입력은 추가 맥락을 제공하거나, 애매함을 해소하거나, 에이전트의 출력을 검증해야 할 때 활용될 수 있습니다.
자세한 구현 방법은 [Human-in-the-Loop 가이드](/ko/how-to/human-in-the-loop)를 참고해 주세요.
자세한 구현 방법은 [Human-in-the-Loop 가이드](/ko/enterprise/guides/human-in-the-loop)를 참고해 주세요.
</Accordion>
<Accordion title="CrewAI에서 에이전트의 행동과 역량을 맞춤화하고 향상시키기 위한 고급 커스터마이징 옵션에는 어떤 것이 있나요?">
@@ -142,7 +142,7 @@ mode: "wide"
<Accordion title="CrewAI 에이전트를 위한 커스텀 도구는 어떻게 만들 수 있습니까?">
CrewAI에서 제공하는 `BaseTool` 클래스를 상속받아 커스텀 도구를 직접 만들거나, tool 데코레이터를 활용할 수 있습니다. 상속 방식은 `BaseTool`을 상속하는 새로운 클래스를 정의해 이름, 설명, 그리고 실제 논리를 처리하는 `_run` 메서드를 작성합니다. tool 데코레이터를 사용하면 필수 속성과 운영 로직만 정의해 바로 `Tool` 객체를 만들 수 있습니다.
<Card href="https://docs.crewai.com/how-to/create-custom-tools" icon="code">CrewAI 도구 가이드</Card>
<Card href="/ko/learn/create-custom-tools" icon="code">CrewAI 도구 가이드</Card>
</Accordion>
<Accordion title="전체 crew가 수행할 수 있는 분당 최대 요청 수는 어떻게 제한할 수 있나요?">

View File

@@ -0,0 +1,379 @@
---
title: 실행 훅 개요
description: 에이전트 작업에 대한 세밀한 제어를 위한 CrewAI 실행 훅 이해 및 사용
mode: "wide"
---
실행 훅(Execution Hooks)은 CrewAI 에이전트의 런타임 동작을 세밀하게 제어할 수 있게 해줍니다. 크루 실행 전후에 실행되는 킥오프 훅과 달리, 실행 훅은 에이전트 실행 중 특정 작업을 가로채서 동작을 수정하고, 안전성 검사를 구현하며, 포괄적인 모니터링을 추가할 수 있습니다.
## 실행 훅의 유형
CrewAI는 두 가지 주요 범주의 실행 훅을 제공합니다:
### 1. [LLM 호출 훅](/learn/llm-hooks)
언어 모델 상호작용을 제어하고 모니터링합니다:
- **LLM 호출 전**: 프롬프트 수정, 입력 검증, 승인 게이트 구현
- **LLM 호출 후**: 응답 변환, 출력 정제, 대화 기록 업데이트
**사용 사례:**
- 반복 제한
- 비용 추적 및 토큰 사용량 모니터링
- 응답 정제 및 콘텐츠 필터링
- LLM 호출에 대한 사람의 승인
- 안전 가이드라인 또는 컨텍스트 추가
- 디버그 로깅 및 요청/응답 검사
[LLM 훅 문서 보기 →](/learn/llm-hooks)
### 2. [도구 호출 훅](/learn/tool-hooks)
도구 실행을 제어하고 모니터링합니다:
- **도구 호출 전**: 입력 수정, 매개변수 검증, 위험한 작업 차단
- **도구 호출 후**: 결과 변환, 출력 정제, 실행 세부사항 로깅
**사용 사례:**
- 파괴적인 작업에 대한 안전 가드레일
- 민감한 작업에 대한 사람의 승인
- 입력 검증 및 정제
- 결과 캐싱 및 속도 제한
- 도구 사용 분석
- 디버그 로깅 및 모니터링
[도구 훅 문서 보기 →](/learn/tool-hooks)
## 훅 등록 방법
### 1. 데코레이터 기반 훅 (권장)
훅을 등록하는 가장 깔끔하고 파이썬스러운 방법:
```python
from crewai.hooks import before_llm_call, after_llm_call, before_tool_call, after_tool_call
@before_llm_call
def limit_iterations(context):
"""반복 횟수를 제한하여 무한 루프를 방지합니다."""
if context.iterations > 10:
return False # 실행 차단
return None
@after_llm_call
def sanitize_response(context):
"""LLM 응답에서 민감한 데이터를 제거합니다."""
if "API_KEY" in context.response:
return context.response.replace("API_KEY", "[수정됨]")
return None
@before_tool_call
def block_dangerous_tools(context):
"""파괴적인 작업을 차단합니다."""
if context.tool_name == "delete_database":
return False # 실행 차단
return None
@after_tool_call
def log_tool_result(context):
"""도구 실행을 로깅합니다."""
print(f"도구 {context.tool_name} 완료")
return None
```
### 2. 크루 범위 훅
특정 크루 인스턴스에만 훅을 적용합니다:
```python
from crewai import CrewBase
from crewai.project import crew
from crewai.hooks import before_llm_call_crew, after_tool_call_crew
@CrewBase
class MyProjCrew:
@before_llm_call_crew
def validate_inputs(self, context):
# 이 크루에만 적용됩니다
print(f"{self.__class__.__name__}에서 LLM 호출")
return None
@after_tool_call_crew
def log_results(self, context):
# 크루별 로깅
print(f"도구 결과: {context.tool_result[:50]}...")
return None
@crew
def crew(self) -> Crew:
return Crew(
agents=self.agents,
tasks=self.tasks,
process=Process.sequential
)
```
## 훅 실행 흐름
### LLM 호출 흐름
```
에이전트가 LLM을 호출해야 함
[LLM 호출 전 훅 실행]
├→ 훅 1: 반복 횟수 검증
├→ 훅 2: 안전 컨텍스트 추가
└→ 훅 3: 요청 로깅
훅이 False를 반환하는 경우:
├→ LLM 호출 차단
└→ ValueError 발생
모든 훅이 True/None을 반환하는 경우:
├→ LLM 호출 진행
└→ 응답 생성
[LLM 호출 후 훅 실행]
├→ 훅 1: 응답 정제
├→ 훅 2: 응답 로깅
└→ 훅 3: 메트릭 업데이트
최종 응답 반환
```
### 도구 호출 흐름
```
에이전트가 도구를 실행해야 함
[도구 호출 전 훅 실행]
├→ 훅 1: 도구 허용 여부 확인
├→ 훅 2: 입력 검증
└→ 훅 3: 필요시 승인 요청
훅이 False를 반환하는 경우:
├→ 도구 실행 차단
└→ 오류 메시지 반환
모든 훅이 True/None을 반환하는 경우:
├→ 도구 실행 진행
└→ 결과 생성
[도구 호출 후 훅 실행]
├→ 훅 1: 결과 정제
├→ 훅 2: 결과 캐싱
└→ 훅 3: 메트릭 로깅
최종 결과 반환
```
## 훅 컨텍스트 객체
### LLMCallHookContext
LLM 실행 상태에 대한 액세스를 제공합니다:
```python
class LLMCallHookContext:
executor: CrewAgentExecutor # 전체 실행자 액세스
messages: list # 변경 가능한 메시지 목록
agent: Agent # 현재 에이전트
task: Task # 현재 작업
crew: Crew # 크루 인스턴스
llm: BaseLLM # LLM 인스턴스
iterations: int # 현재 반복 횟수
response: str | None # LLM 응답 (후 훅용)
```
### ToolCallHookContext
도구 실행 상태에 대한 액세스를 제공합니다:
```python
class ToolCallHookContext:
tool_name: str # 호출되는 도구
tool_input: dict # 변경 가능한 입력 매개변수
tool: CrewStructuredTool # 도구 인스턴스
agent: Agent | None # 실행 중인 에이전트
task: Task | None # 현재 작업
crew: Crew | None # 크루 인스턴스
tool_result: str | None # 도구 결과 (후 훅용)
```
## 일반적인 패턴
### 안전 및 검증
```python
@before_tool_call
def safety_check(context):
"""파괴적인 작업을 차단합니다."""
dangerous = ['delete_file', 'drop_table', 'system_shutdown']
if context.tool_name in dangerous:
print(f"🛑 차단됨: {context.tool_name}")
return False
return None
@before_llm_call
def iteration_limit(context):
"""무한 루프를 방지합니다."""
if context.iterations > 15:
print("⛔ 최대 반복 횟수 초과")
return False
return None
```
### 사람의 개입
```python
@before_tool_call
def require_approval(context):
"""민감한 작업에 대한 승인을 요구합니다."""
sensitive = ['send_email', 'make_payment', 'post_message']
if context.tool_name in sensitive:
response = context.request_human_input(
prompt=f"{context.tool_name} 승인하시겠습니까?",
default_message="승인하려면 'yes'를 입력하세요:"
)
if response.lower() != 'yes':
return False
return None
```
### 모니터링 및 분석
```python
from collections import defaultdict
import time
metrics = defaultdict(lambda: {'count': 0, 'total_time': 0})
@before_tool_call
def start_timer(context):
context.tool_input['_start'] = time.time()
return None
@after_tool_call
def track_metrics(context):
start = context.tool_input.get('_start', time.time())
duration = time.time() - start
metrics[context.tool_name]['count'] += 1
metrics[context.tool_name]['total_time'] += duration
return None
```
## 훅 관리
### 모든 훅 지우기
```python
from crewai.hooks import clear_all_global_hooks
# 모든 훅을 한 번에 지웁니다
result = clear_all_global_hooks()
print(f"{result['total']} 훅이 지워졌습니다")
```
### 특정 훅 유형 지우기
```python
from crewai.hooks import (
clear_before_llm_call_hooks,
clear_after_llm_call_hooks,
clear_before_tool_call_hooks,
clear_after_tool_call_hooks
)
# 특정 유형 지우기
llm_before_count = clear_before_llm_call_hooks()
tool_after_count = clear_after_tool_call_hooks()
```
## 모범 사례
### 1. 훅을 집중적으로 유지
각 훅은 단일하고 명확한 책임을 가져야 합니다.
### 2. 오류를 우아하게 처리
```python
@before_llm_call
def safe_hook(context):
try:
if some_condition:
return False
except Exception as e:
print(f"훅 오류: {e}")
return None # 오류에도 불구하고 실행 허용
```
### 3. 컨텍스트를 제자리에서 수정
```python
# ✅ 올바름 - 제자리에서 수정
@before_llm_call
def add_context(context):
context.messages.append({"role": "system", "content": "간결하게"})
# ❌ 잘못됨 - 참조를 교체
@before_llm_call
def wrong_approach(context):
context.messages = [{"role": "system", "content": "간결하게"}]
```
### 4. 타입 힌트 사용
```python
from crewai.hooks import LLMCallHookContext, ToolCallHookContext
def my_llm_hook(context: LLMCallHookContext) -> bool | None:
return None
def my_tool_hook(context: ToolCallHookContext) -> str | None:
return None
```
### 5. 테스트에서 정리
```python
import pytest
from crewai.hooks import clear_all_global_hooks
@pytest.fixture(autouse=True)
def clean_hooks():
"""각 테스트 전에 훅을 재설정합니다."""
yield
clear_all_global_hooks()
```
## 어떤 훅을 사용해야 할까요
### LLM 훅을 사용하는 경우:
- 반복 제한 구현
- 프롬프트에 컨텍스트 또는 안전 가이드라인 추가
- 토큰 사용량 및 비용 추적
- 응답 정제 또는 변환
- LLM 호출에 대한 승인 게이트 구현
- 프롬프트/응답 상호작용 디버깅
### 도구 훅을 사용하는 경우:
- 위험하거나 파괴적인 작업 차단
- 실행 전 도구 입력 검증
- 민감한 작업에 대한 승인 게이트 구현
- 도구 결과 캐싱
- 도구 사용 및 성능 추적
- 도구 출력 정제
- 도구 호출 속도 제한
### 둘 다 사용하는 경우:
모든 에이전트 작업을 모니터링해야 하는 포괄적인 관찰성, 안전 또는 승인 시스템을 구축하는 경우.
## 관련 문서
- [LLM 호출 훅 →](/learn/llm-hooks) - 상세한 LLM 훅 문서
- [도구 호출 훅 →](/learn/tool-hooks) - 상세한 도구 훅 문서
- [킥오프 전후 훅 →](/learn/before-and-after-kickoff-hooks) - 크루 생명주기 훅
- [사람의 개입 →](/learn/human-in-the-loop) - 사람 입력 패턴
## 결론
실행 훅은 에이전트 런타임 동작에 대한 강력한 제어를 제공합니다. 이를 사용하여 안전 가드레일, 승인 워크플로우, 포괄적인 모니터링 및 사용자 정의 비즈니스 로직을 구현하세요. 적절한 오류 처리, 타입 안전성 및 성능 고려사항과 결합하면, 훅을 통해 프로덕션 준비가 된 안전하고 관찰 가능한 에이전트 시스템을 구축할 수 있습니다.

View File

@@ -95,7 +95,7 @@ project_crew = Crew(
```
<Tip>
매니저 에이전트 생성 및 맞춤화에 대한 자세한 내용은 [커스텀 매니저 에이전트 문서](https://docs.crewai.com/how-to/custom-manager-agent#custom-manager-agent)를 참고하세요.
매니저 에이전트 생성 및 맞춤화에 대한 자세한 내용은 [커스텀 매니저 에이전트 문서](/ko/learn/custom-manager-agent)를 참고하세요.
</Tip>
### 워크플로우 실행

412
docs/ko/learn/llm-hooks.mdx Normal file
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@@ -0,0 +1,412 @@
---
title: LLM 호출 훅
description: CrewAI에서 언어 모델 상호작용을 가로채고, 수정하고, 제어하는 LLM 호출 훅 사용 방법 배우기
mode: "wide"
---
LLM 호출 훅(LLM Call Hooks)은 에이전트 실행 중 언어 모델 상호작용에 대한 세밀한 제어를 제공합니다. 이러한 훅을 사용하면 LLM 호출을 가로채고, 프롬프트를 수정하고, 응답을 변환하고, 승인 게이트를 구현하고, 사용자 정의 로깅 또는 모니터링을 추가할 수 있습니다.
## 개요
LLM 훅은 두 가지 중요한 시점에 실행됩니다:
- **LLM 호출 전**: 메시지 수정, 입력 검증 또는 실행 차단
- **LLM 호출 후**: 응답 변환, 출력 정제 또는 대화 기록 수정
## 훅 타입
### LLM 호출 전 훅
모든 LLM 호출 전에 실행되며, 다음을 수행할 수 있습니다:
- LLM에 전송되는 메시지 검사 및 수정
- 조건에 따라 LLM 실행 차단
- 속도 제한 또는 승인 게이트 구현
- 컨텍스트 또는 시스템 메시지 추가
- 요청 세부사항 로깅
**시그니처:**
```python
def before_hook(context: LLMCallHookContext) -> bool | None:
# 실행을 차단하려면 False 반환
# 실행을 허용하려면 True 또는 None 반환
...
```
### LLM 호출 후 훅
모든 LLM 호출 후에 실행되며, 다음을 수행할 수 있습니다:
- LLM 응답 수정 또는 정제
- 메타데이터 또는 서식 추가
- 응답 세부사항 로깅
- 대화 기록 업데이트
- 콘텐츠 필터링 구현
**시그니처:**
```python
def after_hook(context: LLMCallHookContext) -> str | None:
# 수정된 응답 문자열 반환
# 원본 응답을 유지하려면 None 반환
...
```
## LLM 훅 컨텍스트
`LLMCallHookContext` 객체는 실행 상태에 대한 포괄적인 액세스를 제공합니다:
```python
class LLMCallHookContext:
executor: CrewAgentExecutor # 전체 실행자 참조
messages: list # 변경 가능한 메시지 목록
agent: Agent # 현재 에이전트
task: Task # 현재 작업
crew: Crew # 크루 인스턴스
llm: BaseLLM # LLM 인스턴스
iterations: int # 현재 반복 횟수
response: str | None # LLM 응답 (후 훅용)
```
### 메시지 수정
**중요:** 항상 메시지를 제자리에서 수정하세요:
```python
# ✅ 올바름 - 제자리에서 수정
def add_context(context: LLMCallHookContext) -> None:
context.messages.append({"role": "system", "content": "간결하게 작성하세요"})
# ❌ 잘못됨 - 리스트 참조를 교체
def wrong_approach(context: LLMCallHookContext) -> None:
context.messages = [{"role": "system", "content": "간결하게 작성하세요"}]
```
## 등록 방법
### 1. 데코레이터 기반 등록 (권장)
더 깔끔한 구문을 위해 데코레이터를 사용합니다:
```python
from crewai.hooks import before_llm_call, after_llm_call
@before_llm_call
def validate_iteration_count(context):
"""반복 횟수를 검증합니다."""
if context.iterations > 10:
print("⚠️ 최대 반복 횟수 초과")
return False # 실행 차단
return None
@after_llm_call
def sanitize_response(context):
"""민감한 데이터를 제거합니다."""
if context.response and "API_KEY" in context.response:
return context.response.replace("API_KEY", "[수정됨]")
return None
```
### 2. 크루 범위 훅
특정 크루 인스턴스에 대한 훅을 등록합니다:
```python
from crewai import CrewBase
from crewai.project import crew
from crewai.hooks import before_llm_call_crew, after_llm_call_crew
@CrewBase
class MyProjCrew:
@before_llm_call_crew
def validate_inputs(self, context):
# 이 크루에만 적용됩니다
if context.iterations == 0:
print(f"작업 시작: {context.task.description}")
return None
@after_llm_call_crew
def log_responses(self, context):
# 크루별 응답 로깅
print(f"응답 길이: {len(context.response)}")
return None
@crew
def crew(self) -> Crew:
return Crew(
agents=self.agents,
tasks=self.tasks,
process=Process.sequential,
verbose=True
)
```
## 일반적인 사용 사례
### 1. 반복 제한
```python
@before_llm_call
def limit_iterations(context: LLMCallHookContext) -> bool | None:
"""무한 루프를 방지하기 위해 반복을 제한합니다."""
max_iterations = 15
if context.iterations > max_iterations:
print(f"⛔ 차단됨: {max_iterations}회 반복 초과")
return False # 실행 차단
return None
```
### 2. 사람의 승인 게이트
```python
@before_llm_call
def require_approval(context: LLMCallHookContext) -> bool | None:
"""특정 반복 후 승인을 요구합니다."""
if context.iterations > 5:
response = context.request_human_input(
prompt=f"반복 {context.iterations}: LLM 호출을 승인하시겠습니까?",
default_message="승인하려면 Enter를 누르고, 차단하려면 'no'를 입력하세요:"
)
if response.lower() == "no":
print("🚫 사용자에 의해 LLM 호출이 차단되었습니다")
return False
return None
```
### 3. 시스템 컨텍스트 추가
```python
@before_llm_call
def add_guardrails(context: LLMCallHookContext) -> None:
"""모든 LLM 호출에 안전 가이드라인을 추가합니다."""
context.messages.append({
"role": "system",
"content": "응답이 사실에 기반하고 가능한 경우 출처를 인용하도록 하세요."
})
return None
```
### 4. 응답 정제
```python
@after_llm_call
def sanitize_sensitive_data(context: LLMCallHookContext) -> str | None:
"""민감한 데이터 패턴을 제거합니다."""
if not context.response:
return None
import re
sanitized = context.response
sanitized = re.sub(r'\b\d{3}-\d{2}-\d{4}\b', '[주민번호-수정됨]', sanitized)
sanitized = re.sub(r'\b\d{4}[- ]?\d{4}[- ]?\d{4}[- ]?\d{4}\b', '[카드번호-수정됨]', sanitized)
return sanitized
```
### 5. 비용 추적
```python
import tiktoken
@before_llm_call
def track_token_usage(context: LLMCallHookContext) -> None:
"""입력 토큰을 추적합니다."""
encoding = tiktoken.get_encoding("cl100k_base")
total_tokens = sum(
len(encoding.encode(msg.get("content", "")))
for msg in context.messages
)
print(f"📊 입력 토큰: ~{total_tokens}")
return None
@after_llm_call
def track_response_tokens(context: LLMCallHookContext) -> None:
"""응답 토큰을 추적합니다."""
if context.response:
encoding = tiktoken.get_encoding("cl100k_base")
tokens = len(encoding.encode(context.response))
print(f"📊 응답 토큰: ~{tokens}")
return None
```
### 6. 디버그 로깅
```python
@before_llm_call
def debug_request(context: LLMCallHookContext) -> None:
"""LLM 요청을 디버그합니다."""
print(f"""
🔍 LLM 호출 디버그:
- 에이전트: {context.agent.role}
- 작업: {context.task.description[:50]}...
- 반복: {context.iterations}
- 메시지 수: {len(context.messages)}
- 마지막 메시지: {context.messages[-1] if context.messages else 'None'}
""")
return None
@after_llm_call
def debug_response(context: LLMCallHookContext) -> None:
"""LLM 응답을 디버그합니다."""
if context.response:
print(f"✅ 응답 미리보기: {context.response[:100]}...")
return None
```
## 훅 관리
### 훅 등록 해제
```python
from crewai.hooks import (
unregister_before_llm_call_hook,
unregister_after_llm_call_hook
)
# 특정 훅 등록 해제
def my_hook(context):
...
register_before_llm_call_hook(my_hook)
# 나중에...
unregister_before_llm_call_hook(my_hook) # 찾으면 True 반환
```
### 훅 지우기
```python
from crewai.hooks import (
clear_before_llm_call_hooks,
clear_after_llm_call_hooks,
clear_all_llm_call_hooks
)
# 특정 훅 타입 지우기
count = clear_before_llm_call_hooks()
print(f"{count}개의 전(before) 훅이 지워졌습니다")
# 모든 LLM 훅 지우기
before_count, after_count = clear_all_llm_call_hooks()
print(f"{before_count}개의 전(before) 훅과 {after_count}개의 후(after) 훅이 지워졌습니다")
```
## 고급 패턴
### 조건부 훅 실행
```python
@before_llm_call
def conditional_blocking(context: LLMCallHookContext) -> bool | None:
"""특정 조건에서만 차단합니다."""
# 특정 에이전트에 대해서만 차단
if context.agent.role == "researcher" and context.iterations > 10:
return False
# 특정 작업에 대해서만 차단
if "민감한" in context.task.description.lower() and context.iterations > 5:
return False
return None
```
### 컨텍스트 인식 수정
```python
@before_llm_call
def adaptive_prompting(context: LLMCallHookContext) -> None:
"""반복에 따라 다른 컨텍스트를 추가합니다."""
if context.iterations == 0:
context.messages.append({
"role": "system",
"content": "높은 수준의 개요부터 시작하세요."
})
elif context.iterations > 3:
context.messages.append({
"role": "system",
"content": "구체적인 세부사항에 집중하고 예제를 제공하세요."
})
return None
```
### 훅 체이닝
```python
# 여러 훅은 등록 순서대로 실행됩니다
@before_llm_call
def first_hook(context):
print("1. 첫 번째 훅 실행됨")
return None
@before_llm_call
def second_hook(context):
print("2. 두 번째 훅 실행됨")
return None
@before_llm_call
def blocking_hook(context):
if context.iterations > 10:
print("3. 차단 훅 - 실행 중지")
return False # 후속 훅은 실행되지 않습니다
print("3. 차단 훅 - 실행 허용")
return None
```
## 모범 사례
1. **훅을 집중적으로 유지**: 각 훅은 단일 책임을 가져야 합니다
2. **무거운 계산 피하기**: 훅은 모든 LLM 호출마다 실행됩니다
3. **오류를 우아하게 처리**: try-except를 사용하여 훅 실패로 인한 실행 중단 방지
4. **타입 힌트 사용**: 더 나은 IDE 지원을 위해 `LLMCallHookContext` 활용
5. **훅 동작 문서화**: 특히 차단 조건에 대해
6. **훅을 독립적으로 테스트**: 프로덕션에서 사용하기 전에 단위 테스트
7. **테스트에서 훅 지우기**: 테스트 실행 간 `clear_all_llm_call_hooks()` 사용
8. **제자리에서 수정**: 항상 `context.messages`를 제자리에서 수정하고 교체하지 마세요
## 오류 처리
```python
@before_llm_call
def safe_hook(context: LLMCallHookContext) -> bool | None:
try:
# 훅 로직
if some_condition:
return False
except Exception as e:
print(f"⚠️ 훅 오류: {e}")
# 결정: 오류 발생 시 허용 또는 차단
return None # 오류에도 불구하고 실행 허용
```
## 타입 안전성
```python
from crewai.hooks import LLMCallHookContext, BeforeLLMCallHookType, AfterLLMCallHookType
# 명시적 타입 주석
def my_before_hook(context: LLMCallHookContext) -> bool | None:
return None
def my_after_hook(context: LLMCallHookContext) -> str | None:
return None
# 타입 안전 등록
register_before_llm_call_hook(my_before_hook)
register_after_llm_call_hook(my_after_hook)
```
## 문제 해결
### 훅이 실행되지 않음
- 크루 실행 전에 훅이 등록되었는지 확인
- 이전 훅이 `False`를 반환했는지 확인 (후속 훅 차단)
- 훅 시그니처가 예상 타입과 일치하는지 확인
### 메시지 수정이 지속되지 않음
- 제자리 수정 사용: `context.messages.append()`
- 리스트를 교체하지 마세요: `context.messages = []`
### 응답 수정이 작동하지 않음
- 후 훅에서 수정된 문자열을 반환
- `None`을 반환하면 원본 응답이 유지됩니다
## 결론
LLM 호출 훅은 CrewAI에서 언어 모델 상호작용을 제어하고 모니터링하는 강력한 기능을 제공합니다. 이를 사용하여 안전 가드레일, 승인 게이트, 로깅, 비용 추적 및 응답 정제를 구현하세요. 적절한 오류 처리 및 타입 안전성과 결합하면, 훅을 통해 강력하고 프로덕션 준비가 된 에이전트 시스템을 구축할 수 있습니다.

View File

@@ -0,0 +1,498 @@
---
title: 도구 호출 훅
description: CrewAI에서 도구 실행을 가로채고, 수정하고, 제어하는 도구 호출 훅 사용 방법 배우기
mode: "wide"
---
도구 호출 훅(Tool Call Hooks)은 에이전트 작업 중 도구 실행에 대한 세밀한 제어를 제공합니다. 이러한 훅을 사용하면 도구 호출을 가로채고, 입력을 수정하고, 출력을 변환하고, 안전 검사를 구현하고, 포괄적인 로깅 또는 모니터링을 추가할 수 있습니다.
## 개요
도구 훅은 두 가지 중요한 시점에 실행됩니다:
- **도구 호출 전**: 입력 수정, 매개변수 검증 또는 실행 차단
- **도구 호출 후**: 결과 변환, 출력 정제 또는 실행 세부사항 로깅
## 훅 타입
### 도구 호출 전 훅
모든 도구 실행 전에 실행되며, 다음을 수행할 수 있습니다:
- 도구 입력 검사 및 수정
- 조건에 따라 도구 실행 차단
- 위험한 작업에 대한 승인 게이트 구현
- 매개변수 검증
- 도구 호출 로깅
**시그니처:**
```python
def before_hook(context: ToolCallHookContext) -> bool | None:
# 실행을 차단하려면 False 반환
# 실행을 허용하려면 True 또는 None 반환
...
```
### 도구 호출 후 훅
모든 도구 실행 후에 실행되며, 다음을 수행할 수 있습니다:
- 도구 결과 수정 또는 정제
- 메타데이터 또는 서식 추가
- 실행 결과 로깅
- 결과 검증 구현
- 출력 형식 변환
**시그니처:**
```python
def after_hook(context: ToolCallHookContext) -> str | None:
# 수정된 결과 문자열 반환
# 원본 결과를 유지하려면 None 반환
...
```
## 도구 훅 컨텍스트
`ToolCallHookContext` 객체는 도구 실행 상태에 대한 포괄적인 액세스를 제공합니다:
```python
class ToolCallHookContext:
tool_name: str # 호출되는 도구의 이름
tool_input: dict[str, Any] # 변경 가능한 도구 입력 매개변수
tool: CrewStructuredTool # 도구 인스턴스 참조
agent: Agent | BaseAgent | None # 도구를 실행하는 에이전트
task: Task | None # 현재 작업
crew: Crew | None # 크루 인스턴스
tool_result: str | None # 도구 결과 (후 훅용)
```
### 도구 입력 수정
**중요:** 항상 도구 입력을 제자리에서 수정하세요:
```python
# ✅ 올바름 - 제자리에서 수정
def sanitize_input(context: ToolCallHookContext) -> None:
context.tool_input['query'] = context.tool_input['query'].lower()
# ❌ 잘못됨 - 딕셔너리 참조를 교체
def wrong_approach(context: ToolCallHookContext) -> None:
context.tool_input = {'query': 'new query'}
```
## 등록 방법
### 1. 데코레이터 기반 등록 (권장)
더 깔끔한 구문을 위해 데코레이터를 사용합니다:
```python
from crewai.hooks import before_tool_call, after_tool_call
@before_tool_call
def block_dangerous_tools(context):
"""위험한 도구를 차단합니다."""
dangerous_tools = ['delete_database', 'drop_table', 'rm_rf']
if context.tool_name in dangerous_tools:
print(f"⛔ 위험한 도구 차단됨: {context.tool_name}")
return False # 실행 차단
return None
@after_tool_call
def sanitize_results(context):
"""결과를 정제합니다."""
if context.tool_result and "password" in context.tool_result.lower():
return context.tool_result.replace("password", "[수정됨]")
return None
```
### 2. 크루 범위 훅
특정 크루 인스턴스에 대한 훅을 등록합니다:
```python
from crewai import CrewBase
from crewai.project import crew
from crewai.hooks import before_tool_call_crew, after_tool_call_crew
@CrewBase
class MyProjCrew:
@before_tool_call_crew
def validate_tool_inputs(self, context):
# 이 크루에만 적용됩니다
if context.tool_name == "web_search":
if not context.tool_input.get('query'):
print("❌ 잘못된 검색 쿼리")
return False
return None
@after_tool_call_crew
def log_tool_results(self, context):
# 크루별 도구 로깅
print(f"✅ {context.tool_name} 완료됨")
return None
@crew
def crew(self) -> Crew:
return Crew(
agents=self.agents,
tasks=self.tasks,
process=Process.sequential,
verbose=True
)
```
## 일반적인 사용 사례
### 1. 안전 가드레일
```python
@before_tool_call
def safety_check(context: ToolCallHookContext) -> bool | None:
"""해를 끼칠 수 있는 도구를 차단합니다."""
destructive_tools = [
'delete_file',
'drop_table',
'remove_user',
'system_shutdown'
]
if context.tool_name in destructive_tools:
print(f"🛑 파괴적인 도구 차단됨: {context.tool_name}")
return False
# 민감한 작업에 대해 경고
sensitive_tools = ['send_email', 'post_to_social_media', 'charge_payment']
if context.tool_name in sensitive_tools:
print(f"⚠️ 민감한 도구 실행 중: {context.tool_name}")
return None
```
### 2. 사람의 승인 게이트
```python
@before_tool_call
def require_approval_for_actions(context: ToolCallHookContext) -> bool | None:
"""특정 작업에 대한 승인을 요구합니다."""
approval_required = [
'send_email',
'make_purchase',
'delete_file',
'post_message'
]
if context.tool_name in approval_required:
response = context.request_human_input(
prompt=f"{context.tool_name}을(를) 승인하시겠습니까?",
default_message=f"입력: {context.tool_input}\n승인하려면 'yes'를 입력하세요:"
)
if response.lower() != 'yes':
print(f"❌ 도구 실행 거부됨: {context.tool_name}")
return False
return None
```
### 3. 입력 검증 및 정제
```python
@before_tool_call
def validate_and_sanitize_inputs(context: ToolCallHookContext) -> bool | None:
"""입력을 검증하고 정제합니다."""
# 검색 쿼리 검증
if context.tool_name == 'web_search':
query = context.tool_input.get('query', '')
if len(query) < 3:
print("❌ 검색 쿼리가 너무 짧습니다")
return False
# 쿼리 정제
context.tool_input['query'] = query.strip().lower()
# 파일 경로 검증
if context.tool_name == 'read_file':
path = context.tool_input.get('path', '')
if '..' in path or path.startswith('/'):
print("❌ 잘못된 파일 경로")
return False
return None
```
### 4. 결과 정제
```python
@after_tool_call
def sanitize_sensitive_data(context: ToolCallHookContext) -> str | None:
"""민감한 데이터를 정제합니다."""
if not context.tool_result:
return None
import re
result = context.tool_result
# API 키 제거
result = re.sub(
r'(api[_-]?key|token)["\']?\s*[:=]\s*["\']?[\w-]+',
r'\1: [수정됨]',
result,
flags=re.IGNORECASE
)
# 이메일 주소 제거
result = re.sub(
r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b',
'[이메일-수정됨]',
result
)
# 신용카드 번호 제거
result = re.sub(
r'\b\d{4}[- ]?\d{4}[- ]?\d{4}[- ]?\d{4}\b',
'[카드-수정됨]',
result
)
return result
```
### 5. 도구 사용 분석
```python
import time
from collections import defaultdict
tool_stats = defaultdict(lambda: {'count': 0, 'total_time': 0, 'failures': 0})
@before_tool_call
def start_timer(context: ToolCallHookContext) -> None:
context.tool_input['_start_time'] = time.time()
return None
@after_tool_call
def track_tool_usage(context: ToolCallHookContext) -> None:
start_time = context.tool_input.get('_start_time', time.time())
duration = time.time() - start_time
tool_stats[context.tool_name]['count'] += 1
tool_stats[context.tool_name]['total_time'] += duration
if not context.tool_result or 'error' in context.tool_result.lower():
tool_stats[context.tool_name]['failures'] += 1
print(f"""
📊 {context.tool_name} 도구 통계:
- 실행 횟수: {tool_stats[context.tool_name]['count']}
- 평균 시간: {tool_stats[context.tool_name]['total_time'] / tool_stats[context.tool_name]['count']:.2f}초
- 실패: {tool_stats[context.tool_name]['failures']}
""")
return None
```
### 6. 속도 제한
```python
from collections import defaultdict
from datetime import datetime, timedelta
tool_call_history = defaultdict(list)
@before_tool_call
def rate_limit_tools(context: ToolCallHookContext) -> bool | None:
"""도구 호출 속도를 제한합니다."""
tool_name = context.tool_name
now = datetime.now()
# 오래된 항목 정리 (1분 이상 된 것)
tool_call_history[tool_name] = [
call_time for call_time in tool_call_history[tool_name]
if now - call_time < timedelta(minutes=1)
]
# 속도 제한 확인 (분당 최대 10회 호출)
if len(tool_call_history[tool_name]) >= 10:
print(f"🚫 {tool_name}에 대한 속도 제한 초과")
return False
# 이 호출 기록
tool_call_history[tool_name].append(now)
return None
```
### 7. 디버그 로깅
```python
@before_tool_call
def debug_tool_call(context: ToolCallHookContext) -> None:
"""도구 호출을 디버그합니다."""
print(f"""
🔍 도구 호출 디버그:
- 도구: {context.tool_name}
- 에이전트: {context.agent.role if context.agent else '알 수 없음'}
- 작업: {context.task.description[:50] if context.task else '알 수 없음'}...
- 입력: {context.tool_input}
""")
return None
@after_tool_call
def debug_tool_result(context: ToolCallHookContext) -> None:
"""도구 결과를 디버그합니다."""
if context.tool_result:
result_preview = context.tool_result[:200]
print(f"✅ 결과 미리보기: {result_preview}...")
else:
print("⚠️ 반환된 결과 없음")
return None
```
## 훅 관리
### 훅 등록 해제
```python
from crewai.hooks import (
unregister_before_tool_call_hook,
unregister_after_tool_call_hook
)
# 특정 훅 등록 해제
def my_hook(context):
...
register_before_tool_call_hook(my_hook)
# 나중에...
success = unregister_before_tool_call_hook(my_hook)
print(f"등록 해제됨: {success}")
```
### 훅 지우기
```python
from crewai.hooks import (
clear_before_tool_call_hooks,
clear_after_tool_call_hooks,
clear_all_tool_call_hooks
)
# 특정 훅 타입 지우기
count = clear_before_tool_call_hooks()
print(f"{count}개의 전(before) 훅이 지워졌습니다")
# 모든 도구 훅 지우기
before_count, after_count = clear_all_tool_call_hooks()
print(f"{before_count}개의 전(before) 훅과 {after_count}개의 후(after) 훅이 지워졌습니다")
```
## 고급 패턴
### 조건부 훅 실행
```python
@before_tool_call
def conditional_blocking(context: ToolCallHookContext) -> bool | None:
"""특정 조건에서만 차단합니다."""
# 특정 에이전트에 대해서만 차단
if context.agent and context.agent.role == "junior_agent":
if context.tool_name in ['delete_file', 'send_email']:
print(f"❌ 주니어 에이전트는 {context.tool_name}을(를) 사용할 수 없습니다")
return False
# 특정 작업 중에만 차단
if context.task and "민감한" in context.task.description.lower():
if context.tool_name == 'web_search':
print("❌ 민감한 작업에서는 웹 검색이 차단됩니다")
return False
return None
```
### 컨텍스트 인식 입력 수정
```python
@before_tool_call
def enhance_tool_inputs(context: ToolCallHookContext) -> None:
"""에이전트 역할에 따라 컨텍스트를 추가합니다."""
# 에이전트 역할에 따라 컨텍스트 추가
if context.agent and context.agent.role == "researcher":
if context.tool_name == 'web_search':
# 연구원에 대한 도메인 제한 추가
context.tool_input['domains'] = ['edu', 'gov', 'org']
# 작업에 따라 컨텍스트 추가
if context.task and "긴급" in context.task.description.lower():
if context.tool_name == 'send_email':
context.tool_input['priority'] = 'high'
return None
```
## 모범 사례
1. **훅을 집중적으로 유지**: 각 훅은 단일 책임을 가져야 합니다
2. **무거운 계산 피하기**: 훅은 모든 도구 호출마다 실행됩니다
3. **오류를 우아하게 처리**: try-except를 사용하여 훅 실패 방지
4. **타입 힌트 사용**: 더 나은 IDE 지원을 위해 `ToolCallHookContext` 활용
5. **차단 조건 문서화**: 도구가 차단되는 시기/이유를 명확히 하세요
6. **훅을 독립적으로 테스트**: 프로덕션에서 사용하기 전에 단위 테스트
7. **테스트에서 훅 지우기**: 테스트 실행 간 `clear_all_tool_call_hooks()` 사용
8. **제자리에서 수정**: 항상 `context.tool_input`을 제자리에서 수정하고 교체하지 마세요
9. **중요한 결정 로깅**: 특히 도구 실행을 차단할 때
10. **성능 고려**: 가능한 경우 비용이 많이 드는 검증을 캐시
## 오류 처리
```python
@before_tool_call
def safe_validation(context: ToolCallHookContext) -> bool | None:
try:
# 검증 로직
if not validate_input(context.tool_input):
return False
except Exception as e:
print(f"⚠️ 훅 오류: {e}")
# 결정: 오류 발생 시 허용 또는 차단
return None # 오류에도 불구하고 실행 허용
```
## 타입 안전성
```python
from crewai.hooks import ToolCallHookContext, BeforeToolCallHookType, AfterToolCallHookType
# 명시적 타입 주석
def my_before_hook(context: ToolCallHookContext) -> bool | None:
return None
def my_after_hook(context: ToolCallHookContext) -> str | None:
return None
# 타입 안전 등록
register_before_tool_call_hook(my_before_hook)
register_after_tool_call_hook(my_after_hook)
```
## 문제 해결
### 훅이 실행되지 않음
- 크루 실행 전에 훅이 등록되었는지 확인
- 이전 훅이 `False`를 반환했는지 확인 (실행 및 후속 훅 차단)
- 훅 시그니처가 예상 타입과 일치하는지 확인
### 입력 수정이 작동하지 않음
- 제자리 수정 사용: `context.tool_input['key'] = value`
- 딕셔너리를 교체하지 마세요: `context.tool_input = {}`
### 결과 수정이 작동하지 않음
- 후 훅에서 수정된 문자열을 반환
- `None`을 반환하면 원본 결과가 유지됩니다
- 도구가 실제로 결과를 반환했는지 확인
### 도구가 예기치 않게 차단됨
- 차단 조건에 대한 모든 전(before) 훅 확인
- 훅 실행 순서 확인
- 어떤 훅이 차단하는지 식별하기 위해 디버그 로깅 추가
## 결론
도구 호출 훅은 CrewAI에서 도구 실행을 제어하고 모니터링하는 강력한 기능을 제공합니다. 이를 사용하여 안전 가드레일, 승인 게이트, 입력 검증, 결과 정제, 로깅 및 분석을 구현하세요. 적절한 오류 처리 및 타입 안전성과 결합하면, 훅을 통해 포괄적인 관찰성을 갖춘 안전하고 프로덕션 준비가 된 에이전트 시스템을 구축할 수 있습니다.

View File

@@ -730,9 +730,7 @@ Portkey 대시보드에서 [구성 페이지](https://app.portkey.ai/configs)에
- 로그를 필터링하기 위한 관련 메타데이터 수집
- 액세스 권한 적용
API 키 생성 방법:
- [Portkey App](https://app.portkey.ai/)
- [API Key Management API](/ko/api-reference/admin-api/control-plane/api-keys/create-api-key)
[Portkey App](https://app.portkey.ai/)를 통해 API 키 생성하세요
Python SDK를 사용한 예시:
```python
@@ -755,7 +753,7 @@ api_key = portkey.api_keys.create(
)
```
자세한 키 관리 방법은 [API 키 문서](/ko/api-reference/admin-api/control-plane/api-keys/create-api-key)를 참조하세요.
자세한 키 관리 방법은 [Portkey 문서](https://portkey.ai/docs)를 참조하세요.
</Accordion>
<Accordion title="4단계: 배포 및 모니터링">

View File

@@ -18,7 +18,7 @@ mode: "wide"
파일을 Amazon S3 스토리지에 작성하고 업로드합니다.
</Card>
<Card title="Bedrock Invoke Agent" icon="aws" href="/ko/tools/cloud-storage/bedrockinvokeagenttool">
<Card title="Bedrock Invoke Agent" icon="aws" href="/ko/tools/integration/bedrockinvokeagenttool">
AI 기반 작업을 위해 Amazon Bedrock 에이전트를 호출합니다.
</Card>

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@@ -11,7 +11,7 @@ mode: "wide"
<Card
title="Bedrock Invoke Agent Tool"
icon="cloud"
href="/en/tools/tool-integrations/bedrockinvokeagenttool"
href="/ko/tools/integration/bedrockinvokeagenttool"
color="#0891B2"
>
Invoke Amazon Bedrock Agents from CrewAI to orchestrate actions across AWS services.
@@ -20,7 +20,7 @@ mode: "wide"
<Card
title="CrewAI Automation Tool"
icon="bolt"
href="/en/tools/tool-integrations/crewaiautomationtool"
href="/ko/tools/integration/crewaiautomationtool"
color="#7C3AED"
>
Automate deployment and operations by integrating CrewAI with external platforms and workflows.

View File

@@ -704,7 +704,7 @@ class KnowledgeMonitorListener(BaseEventListener):
knowledge_monitor = KnowledgeMonitorListener()
```
Para mais informações sobre como usar eventos, consulte a documentação [Event Listeners](https://docs.crewai.com/concepts/event-listener).
Para mais informações sobre como usar eventos, consulte a documentação [Event Listeners](/pt-BR/concepts/event-listener).
### Fontes de Knowledge Personalizadas

View File

@@ -725,7 +725,7 @@ O CrewAI suporta respostas em streaming de LLMs, permitindo que sua aplicação
```
<Tip>
[Clique aqui](https://docs.crewai.com/concepts/event-listener#event-listeners) para mais detalhes
[Clique aqui](/pt-BR/concepts/event-listener#event-listeners) para mais detalhes
</Tip>
</Tab>
</Tabs>

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@@ -36,7 +36,7 @@ Você também pode baixar templates diretamente do marketplace clicando em `Down
<Card title="Ferramentas & Integrações" href="/pt-BR/enterprise/features/tools-and-integrations" icon="wrench">
Conecte apps externos e gerencie ferramentas internas que seus agentes podem usar.
</Card>
<Card title="Repositório de Ferramentas" href="/pt-BR/enterprise/features/tool-repository" icon="toolbox">
<Card title="Repositório de Ferramentas" href="/pt-BR/enterprise/guides/tool-repository" icon="toolbox">
Publique e instale ferramentas para ampliar as capacidades dos seus crews.
</Card>
<Card title="Repositório de Agentes" href="/pt-BR/enterprise/features/agent-repositories" icon="people-group">

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@@ -231,7 +231,7 @@ Ferramentas & Integrações é o hub central para conectar aplicações de terce
## Relacionados
<CardGroup cols={2}>
<Card title="Repositório de Ferramentas" href="/pt-BR/enterprise/features/tool-repository" icon="toolbox">
<Card title="Repositório de Ferramentas" href="/pt-BR/enterprise/guides/tool-repository" icon="toolbox">
Publique e instale ferramentas para ampliar as capacidades dos seus crews.
</Card>
<Card title="Automação com Webhook" href="/pt-BR/enterprise/guides/webhook-automation" icon="bolt">

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@@ -21,7 +21,7 @@ O repositório não é um sistema de controle de versões. Use Git para rastrear
Antes de usar o Repositório de Ferramentas, certifique-se de que você possui:
- Uma conta [CrewAI AMP](https://app.crewai.com)
- [CrewAI CLI](https://docs.crewai.com/concepts/cli#cli) instalada
- [CrewAI CLI](/pt-BR/concepts/cli#cli) instalada
- uv>=0.5.0 instalado. Veja [como atualizar](https://docs.astral.sh/uv/getting-started/installation/#upgrading-uv)
- [Git](https://git-scm.com) instalado e configurado
- Permissões de acesso para publicar ou instalar ferramentas em sua organização CrewAI AMP
@@ -66,7 +66,7 @@ Por padrão, as ferramentas são publicadas como privadas. Para tornar uma ferra
crewai tool publish --public
```
Para mais detalhes sobre como construir ferramentas, acesse [Criando suas próprias ferramentas](https://docs.crewai.com/concepts/tools#creating-your-own-tools).
Para mais detalhes sobre como construir ferramentas, acesse [Criando suas próprias ferramentas](/pt-BR/concepts/tools#creating-your-own-tools).
## Atualizando ferramentas

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@@ -49,7 +49,7 @@ mode: "wide"
Para integrar a entrada humana na execução do agente, defina a flag `human_input` na definição da tarefa. Quando habilitada, o agente solicitará a entrada do usuário antes de entregar sua resposta final. Essa entrada pode fornecer contexto extra, esclarecer ambiguidades ou validar a saída do agente.
Para orientações detalhadas de implementação, veja nosso [guia Human-in-the-Loop](/pt-BR/how-to/human-in-the-loop).
Para orientações detalhadas de implementação, veja nosso [guia Human-in-the-Loop](/pt-BR/enterprise/guides/human-in-the-loop).
</Accordion>
<Accordion title="Quais opções avançadas de customização estão disponíveis para aprimorar e personalizar o comportamento e as capacidades dos agentes na CrewAI?">
@@ -142,7 +142,7 @@ mode: "wide"
<Accordion title="Como posso criar ferramentas personalizadas para meus agentes CrewAI?">
Você pode criar ferramentas personalizadas herdando da classe `BaseTool` fornecida pela CrewAI ou usando o decorador de ferramenta. Herdar envolve definir uma nova classe que herda de `BaseTool`, especificando o nome, a descrição e o método `_run` para a lógica operacional. O decorador de ferramenta permite criar um objeto `Tool` diretamente com os atributos necessários e uma lógica funcional.
<Card href="https://docs.crewai.com/how-to/create-custom-tools" icon="code">CrewAI Tools Guide</Card>
<Card href="/pt-BR/learn/create-custom-tools" icon="code">CrewAI Tools Guide</Card>
</Accordion>
<Accordion title="Como controlar o número máximo de solicitações por minuto que toda a crew pode realizar?">

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@@ -0,0 +1,379 @@
---
title: Visão Geral dos Hooks de Execução
description: Entendendo e usando hooks de execução no CrewAI para controle fino sobre operações de agentes
mode: "wide"
---
Os Hooks de Execução fornecem controle fino sobre o comportamento em tempo de execução dos seus agentes CrewAI. Diferentemente dos hooks de kickoff que são executados antes e depois da execução da crew, os hooks de execução interceptam operações específicas durante a execução do agente, permitindo que você modifique comportamentos, implemente verificações de segurança e adicione monitoramento abrangente.
## Tipos de Hooks de Execução
O CrewAI fornece duas categorias principais de hooks de execução:
### 1. [Hooks de Chamada LLM](/learn/llm-hooks)
Controle e monitore interações com o modelo de linguagem:
- **Antes da Chamada LLM**: Modifique prompts, valide entradas, implemente gates de aprovação
- **Depois da Chamada LLM**: Transforme respostas, sanitize saídas, atualize histórico de conversação
**Casos de Uso:**
- Limitação de iterações
- Rastreamento de custos e monitoramento de uso de tokens
- Sanitização de respostas e filtragem de conteúdo
- Aprovação humana para chamadas LLM
- Adição de diretrizes de segurança ou contexto
- Logging de debug e inspeção de requisição/resposta
[Ver Documentação de Hooks LLM →](/learn/llm-hooks)
### 2. [Hooks de Chamada de Ferramenta](/learn/tool-hooks)
Controle e monitore execução de ferramentas:
- **Antes da Chamada de Ferramenta**: Modifique entradas, valide parâmetros, bloqueie operações perigosas
- **Depois da Chamada de Ferramenta**: Transforme resultados, sanitize saídas, registre detalhes de execução
**Casos de Uso:**
- Guardrails de segurança para operações destrutivas
- Aprovação humana para ações sensíveis
- Validação e sanitização de entrada
- Cache de resultados e limitação de taxa
- Análise de uso de ferramentas
- Logging de debug e monitoramento
[Ver Documentação de Hooks de Ferramenta →](/learn/tool-hooks)
## Métodos de Registro
### 1. Hooks Baseados em Decoradores (Recomendado)
A maneira mais limpa e pythônica de registrar hooks:
```python
from crewai.hooks import before_llm_call, after_llm_call, before_tool_call, after_tool_call
@before_llm_call
def limit_iterations(context):
"""Previne loops infinitos limitando iterações."""
if context.iterations > 10:
return False # Bloquear execução
return None
@after_llm_call
def sanitize_response(context):
"""Remove dados sensíveis das respostas do LLM."""
if "API_KEY" in context.response:
return context.response.replace("API_KEY", "[CENSURADO]")
return None
@before_tool_call
def block_dangerous_tools(context):
"""Bloqueia operações destrutivas."""
if context.tool_name == "delete_database":
return False # Bloquear execução
return None
@after_tool_call
def log_tool_result(context):
"""Registra execução de ferramenta."""
print(f"Ferramenta {context.tool_name} concluída")
return None
```
### 2. Hooks com Escopo de Crew
Aplica hooks apenas a instâncias específicas de crew:
```python
from crewai import CrewBase
from crewai.project import crew
from crewai.hooks import before_llm_call_crew, after_tool_call_crew
@CrewBase
class MyProjCrew:
@before_llm_call_crew
def validate_inputs(self, context):
# Aplica-se apenas a esta crew
print(f"Chamada LLM em {self.__class__.__name__}")
return None
@after_tool_call_crew
def log_results(self, context):
# Logging específico da crew
print(f"Resultado da ferramenta: {context.tool_result[:50]}...")
return None
@crew
def crew(self) -> Crew:
return Crew(
agents=self.agents,
tasks=self.tasks,
process=Process.sequential
)
```
## Fluxo de Execução de Hooks
### Fluxo de Chamada LLM
```
Agente precisa chamar LLM
[Hooks Antes da Chamada LLM Executam]
├→ Hook 1: Validar contagem de iterações
├→ Hook 2: Adicionar contexto de segurança
└→ Hook 3: Registrar requisição
Se algum hook retornar False:
├→ Bloquear chamada LLM
└→ Lançar ValueError
Se todos os hooks retornarem True/None:
├→ Chamada LLM prossegue
└→ Resposta gerada
[Hooks Depois da Chamada LLM Executam]
├→ Hook 1: Sanitizar resposta
├→ Hook 2: Registrar resposta
└→ Hook 3: Atualizar métricas
Resposta final retornada
```
### Fluxo de Chamada de Ferramenta
```
Agente precisa executar ferramenta
[Hooks Antes da Chamada de Ferramenta Executam]
├→ Hook 1: Verificar se ferramenta é permitida
├→ Hook 2: Validar entradas
└→ Hook 3: Solicitar aprovação se necessário
Se algum hook retornar False:
├→ Bloquear execução da ferramenta
└→ Retornar mensagem de erro
Se todos os hooks retornarem True/None:
├→ Execução da ferramenta prossegue
└→ Resultado gerado
[Hooks Depois da Chamada de Ferramenta Executam]
├→ Hook 1: Sanitizar resultado
├→ Hook 2: Fazer cache do resultado
└→ Hook 3: Registrar métricas
Resultado final retornado
```
## Objetos de Contexto de Hook
### LLMCallHookContext
Fornece acesso ao estado de execução do LLM:
```python
class LLMCallHookContext:
executor: CrewAgentExecutor # Acesso completo ao executor
messages: list # Lista de mensagens mutável
agent: Agent # Agente atual
task: Task # Tarefa atual
crew: Crew # Instância da crew
llm: BaseLLM # Instância do LLM
iterations: int # Iteração atual
response: str | None # Resposta do LLM (hooks posteriores)
```
### ToolCallHookContext
Fornece acesso ao estado de execução da ferramenta:
```python
class ToolCallHookContext:
tool_name: str # Ferramenta sendo chamada
tool_input: dict # Parâmetros de entrada mutáveis
tool: CrewStructuredTool # Instância da ferramenta
agent: Agent | None # Agente executando
task: Task | None # Tarefa atual
crew: Crew | None # Instância da crew
tool_result: str | None # Resultado da ferramenta (hooks posteriores)
```
## Padrões Comuns
### Segurança e Validação
```python
@before_tool_call
def safety_check(context):
"""Bloqueia operações destrutivas."""
dangerous = ['delete_file', 'drop_table', 'system_shutdown']
if context.tool_name in dangerous:
print(f"🛑 Bloqueado: {context.tool_name}")
return False
return None
@before_llm_call
def iteration_limit(context):
"""Previne loops infinitos."""
if context.iterations > 15:
print("⛔ Máximo de iterações excedido")
return False
return None
```
### Humano no Loop
```python
@before_tool_call
def require_approval(context):
"""Requer aprovação para operações sensíveis."""
sensitive = ['send_email', 'make_payment', 'post_message']
if context.tool_name in sensitive:
response = context.request_human_input(
prompt=f"Aprovar {context.tool_name}?",
default_message="Digite 'sim' para aprovar:"
)
if response.lower() != 'sim':
return False
return None
```
### Monitoramento e Análise
```python
from collections import defaultdict
import time
metrics = defaultdict(lambda: {'count': 0, 'total_time': 0})
@before_tool_call
def start_timer(context):
context.tool_input['_start'] = time.time()
return None
@after_tool_call
def track_metrics(context):
start = context.tool_input.get('_start', time.time())
duration = time.time() - start
metrics[context.tool_name]['count'] += 1
metrics[context.tool_name]['total_time'] += duration
return None
```
## Gerenciamento de Hooks
### Limpar Todos os Hooks
```python
from crewai.hooks import clear_all_global_hooks
# Limpa todos os hooks de uma vez
result = clear_all_global_hooks()
print(f"Limpou {result['total']} hooks")
```
### Limpar Tipos Específicos de Hooks
```python
from crewai.hooks import (
clear_before_llm_call_hooks,
clear_after_llm_call_hooks,
clear_before_tool_call_hooks,
clear_after_tool_call_hooks
)
# Limpar tipos específicos
llm_before_count = clear_before_llm_call_hooks()
tool_after_count = clear_after_tool_call_hooks()
```
## Melhores Práticas
### 1. Mantenha os Hooks Focados
Cada hook deve ter uma responsabilidade única e clara.
### 2. Trate Erros Graciosamente
```python
@before_llm_call
def safe_hook(context):
try:
if some_condition:
return False
except Exception as e:
print(f"Erro no hook: {e}")
return None # Permitir execução apesar do erro
```
### 3. Modifique o Contexto In-Place
```python
# ✅ Correto - modificar in-place
@before_llm_call
def add_context(context):
context.messages.append({"role": "system", "content": "Seja conciso"})
# ❌ Errado - substitui referência
@before_llm_call
def wrong_approach(context):
context.messages = [{"role": "system", "content": "Seja conciso"}]
```
### 4. Use Type Hints
```python
from crewai.hooks import LLMCallHookContext, ToolCallHookContext
def my_llm_hook(context: LLMCallHookContext) -> bool | None:
return None
def my_tool_hook(context: ToolCallHookContext) -> str | None:
return None
```
### 5. Limpe em Testes
```python
import pytest
from crewai.hooks import clear_all_global_hooks
@pytest.fixture(autouse=True)
def clean_hooks():
"""Reseta hooks antes de cada teste."""
yield
clear_all_global_hooks()
```
## Quando Usar Qual Hook
### Use Hooks LLM Quando:
- Implementar limites de iteração
- Adicionar contexto ou diretrizes de segurança aos prompts
- Rastrear uso de tokens e custos
- Sanitizar ou transformar respostas
- Implementar gates de aprovação para chamadas LLM
- Fazer debug de interações de prompt/resposta
### Use Hooks de Ferramenta Quando:
- Bloquear operações perigosas ou destrutivas
- Validar entradas de ferramenta antes da execução
- Implementar gates de aprovação para ações sensíveis
- Fazer cache de resultados de ferramenta
- Rastrear uso e performance de ferramentas
- Sanitizar saídas de ferramenta
- Limitar taxa de chamadas de ferramenta
### Use Ambos Quando:
Construir sistemas abrangentes de observabilidade, segurança ou aprovação que precisam monitorar todas as operações do agente.
## Documentação Relacionada
- [Hooks de Chamada LLM →](/learn/llm-hooks) - Documentação detalhada de hooks LLM
- [Hooks de Chamada de Ferramenta →](/learn/tool-hooks) - Documentação detalhada de hooks de ferramenta
- [Hooks Antes e Depois do Kickoff →](/learn/before-and-after-kickoff-hooks) - Hooks do ciclo de vida da crew
- [Humano no Loop →](/learn/human-in-the-loop) - Padrões de entrada humana
## Conclusão
Os Hooks de Execução fornecem controle poderoso sobre o comportamento em tempo de execução do agente. Use-os para implementar guardrails de segurança, fluxos de trabalho de aprovação, monitoramento abrangente e lógica de negócio personalizada. Combinados com tratamento adequado de erros, segurança de tipos e considerações de performance, os hooks permitem sistemas de agentes seguros, prontos para produção e observáveis.

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@@ -96,7 +96,7 @@ project_crew = Crew(
```
<Tip>
Para mais detalhes sobre a criação e personalização de um agente gerente, confira a [documentação do Custom Manager Agent](https://docs.crewai.com/how-to/custom-manager-agent#custom-manager-agent).
Para mais detalhes sobre a criação e personalização de um agente gerente, confira a [documentação do Custom Manager Agent](/pt-BR/learn/custom-manager-agent).
</Tip>

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@@ -0,0 +1,388 @@
---
title: Hooks de Chamada LLM
description: Aprenda a usar hooks de chamada LLM para interceptar, modificar e controlar interações com modelos de linguagem no CrewAI
mode: "wide"
---
Os Hooks de Chamada LLM fornecem controle fino sobre interações com modelos de linguagem durante a execução do agente. Esses hooks permitem interceptar chamadas LLM, modificar prompts, transformar respostas, implementar gates de aprovação e adicionar logging ou monitoramento personalizado.
## Visão Geral
Os hooks LLM são executados em dois pontos críticos:
- **Antes da Chamada LLM**: Modificar mensagens, validar entradas ou bloquear execução
- **Depois da Chamada LLM**: Transformar respostas, sanitizar saídas ou modificar histórico de conversação
## Tipos de Hook
### Hooks Antes da Chamada LLM
Executados antes de cada chamada LLM, esses hooks podem:
- Inspecionar e modificar mensagens enviadas ao LLM
- Bloquear execução LLM com base em condições
- Implementar limitação de taxa ou gates de aprovação
- Adicionar contexto ou mensagens do sistema
- Registrar detalhes da requisição
**Assinatura:**
```python
def before_hook(context: LLMCallHookContext) -> bool | None:
# Retorne False para bloquear execução
# Retorne True ou None para permitir execução
...
```
### Hooks Depois da Chamada LLM
Executados depois de cada chamada LLM, esses hooks podem:
- Modificar ou sanitizar respostas do LLM
- Adicionar metadados ou formatação
- Registrar detalhes da resposta
- Atualizar histórico de conversação
- Implementar filtragem de conteúdo
**Assinatura:**
```python
def after_hook(context: LLMCallHookContext) -> str | None:
# Retorne string de resposta modificada
# Retorne None para manter resposta original
...
```
## Contexto do Hook LLM
O objeto `LLMCallHookContext` fornece acesso abrangente ao estado de execução:
```python
class LLMCallHookContext:
executor: CrewAgentExecutor # Referência completa ao executor
messages: list # Lista de mensagens mutável
agent: Agent # Agente atual
task: Task # Tarefa atual
crew: Crew # Instância da crew
llm: BaseLLM # Instância do LLM
iterations: int # Contagem de iteração atual
response: str | None # Resposta do LLM (apenas hooks posteriores)
```
### Modificando Mensagens
**Importante:** Sempre modifique mensagens in-place:
```python
# ✅ Correto - modificar in-place
def add_context(context: LLMCallHookContext) -> None:
context.messages.append({"role": "system", "content": "Seja conciso"})
# ❌ Errado - substitui referência da lista
def wrong_approach(context: LLMCallHookContext) -> None:
context.messages = [{"role": "system", "content": "Seja conciso"}]
```
## Métodos de Registro
### 1. Registro Baseado em Decoradores (Recomendado)
Use decoradores para sintaxe mais limpa:
```python
from crewai.hooks import before_llm_call, after_llm_call
@before_llm_call
def validate_iteration_count(context):
"""Valida a contagem de iterações."""
if context.iterations > 10:
print("⚠️ Máximo de iterações excedido")
return False # Bloquear execução
return None
@after_llm_call
def sanitize_response(context):
"""Remove dados sensíveis."""
if context.response and "API_KEY" in context.response:
return context.response.replace("API_KEY", "[CENSURADO]")
return None
```
### 2. Hooks com Escopo de Crew
Registre hooks para uma instância específica de crew:
```python
from crewai import CrewBase
from crewai.project import crew
from crewai.hooks import before_llm_call_crew, after_llm_call_crew
@CrewBase
class MyProjCrew:
@before_llm_call_crew
def validate_inputs(self, context):
# Aplica-se apenas a esta crew
if context.iterations == 0:
print(f"Iniciando tarefa: {context.task.description}")
return None
@after_llm_call_crew
def log_responses(self, context):
# Logging específico da crew
print(f"Comprimento da resposta: {len(context.response)}")
return None
@crew
def crew(self) -> Crew:
return Crew(
agents=self.agents,
tasks=self.tasks,
process=Process.sequential,
verbose=True
)
```
## Casos de Uso Comuns
### 1. Limitação de Iterações
```python
@before_llm_call
def limit_iterations(context: LLMCallHookContext) -> bool | None:
"""Previne loops infinitos limitando iterações."""
max_iterations = 15
if context.iterations > max_iterations:
print(f"⛔ Bloqueado: Excedeu {max_iterations} iterações")
return False # Bloquear execução
return None
```
### 2. Gate de Aprovação Humana
```python
@before_llm_call
def require_approval(context: LLMCallHookContext) -> bool | None:
"""Requer aprovação após certas iterações."""
if context.iterations > 5:
response = context.request_human_input(
prompt=f"Iteração {context.iterations}: Aprovar chamada LLM?",
default_message="Pressione Enter para aprovar, ou digite 'não' para bloquear:"
)
if response.lower() == "não":
print("🚫 Chamada LLM bloqueada pelo usuário")
return False
return None
```
### 3. Adicionando Contexto do Sistema
```python
@before_llm_call
def add_guardrails(context: LLMCallHookContext) -> None:
"""Adiciona diretrizes de segurança a cada chamada LLM."""
context.messages.append({
"role": "system",
"content": "Garanta que as respostas sejam factuais e cite fontes quando possível."
})
return None
```
### 4. Sanitização de Resposta
```python
@after_llm_call
def sanitize_sensitive_data(context: LLMCallHookContext) -> str | None:
"""Remove padrões sensíveis."""
if not context.response:
return None
import re
sanitized = context.response
sanitized = re.sub(r'\b\d{3}\.\d{3}\.\d{3}-\d{2}\b', '[CPF-CENSURADO]', sanitized)
sanitized = re.sub(r'\b\d{4}[- ]?\d{4}[- ]?\d{4}[- ]?\d{4}\b', '[CARTÃO-CENSURADO]', sanitized)
return sanitized
```
### 5. Rastreamento de Custos
```python
import tiktoken
@before_llm_call
def track_token_usage(context: LLMCallHookContext) -> None:
"""Rastreia tokens de entrada."""
encoding = tiktoken.get_encoding("cl100k_base")
total_tokens = sum(
len(encoding.encode(msg.get("content", "")))
for msg in context.messages
)
print(f"📊 Tokens de entrada: ~{total_tokens}")
return None
@after_llm_call
def track_response_tokens(context: LLMCallHookContext) -> None:
"""Rastreia tokens de resposta."""
if context.response:
encoding = tiktoken.get_encoding("cl100k_base")
tokens = len(encoding.encode(context.response))
print(f"📊 Tokens de resposta: ~{tokens}")
return None
```
### 6. Logging de Debug
```python
@before_llm_call
def debug_request(context: LLMCallHookContext) -> None:
"""Debug de requisição LLM."""
print(f"""
🔍 Debug de Chamada LLM:
- Agente: {context.agent.role}
- Tarefa: {context.task.description[:50]}...
- Iteração: {context.iterations}
- Contagem de Mensagens: {len(context.messages)}
- Última Mensagem: {context.messages[-1] if context.messages else 'Nenhuma'}
""")
return None
@after_llm_call
def debug_response(context: LLMCallHookContext) -> None:
"""Debug de resposta LLM."""
if context.response:
print(f"✅ Preview da Resposta: {context.response[:100]}...")
return None
```
## Gerenciamento de Hooks
### Desregistrando Hooks
```python
from crewai.hooks import (
unregister_before_llm_call_hook,
unregister_after_llm_call_hook
)
# Desregistrar hook específico
def my_hook(context):
...
register_before_llm_call_hook(my_hook)
# Mais tarde...
unregister_before_llm_call_hook(my_hook) # Retorna True se encontrado
```
### Limpando Hooks
```python
from crewai.hooks import (
clear_before_llm_call_hooks,
clear_after_llm_call_hooks,
clear_all_llm_call_hooks
)
# Limpar tipo específico de hook
count = clear_before_llm_call_hooks()
print(f"Limpou {count} hooks antes")
# Limpar todos os hooks LLM
before_count, after_count = clear_all_llm_call_hooks()
print(f"Limpou {before_count} hooks antes e {after_count} hooks depois")
```
## Padrões Avançados
### Execução Condicional de Hook
```python
@before_llm_call
def conditional_blocking(context: LLMCallHookContext) -> bool | None:
"""Bloqueia apenas em condições específicas."""
# Bloquear apenas para agentes específicos
if context.agent.role == "researcher" and context.iterations > 10:
return False
# Bloquear apenas para tarefas específicas
if "sensível" in context.task.description.lower() and context.iterations > 5:
return False
return None
```
### Modificações com Consciência de Contexto
```python
@before_llm_call
def adaptive_prompting(context: LLMCallHookContext) -> None:
"""Adiciona contexto diferente baseado na iteração."""
if context.iterations == 0:
context.messages.append({
"role": "system",
"content": "Comece com uma visão geral de alto nível."
})
elif context.iterations > 3:
context.messages.append({
"role": "system",
"content": "Foque em detalhes específicos e forneça exemplos."
})
return None
```
## Melhores Práticas
1. **Mantenha Hooks Focados**: Cada hook deve ter uma responsabilidade única
2. **Evite Computação Pesada**: Hooks executam em cada chamada LLM
3. **Trate Erros Graciosamente**: Use try-except para prevenir falhas de hooks
4. **Use Type Hints**: Aproveite `LLMCallHookContext` para melhor suporte IDE
5. **Documente Comportamento do Hook**: Especialmente para condições de bloqueio
6. **Teste Hooks Independentemente**: Teste unitário de hooks antes de usar em produção
7. **Limpe Hooks em Testes**: Use `clear_all_llm_call_hooks()` entre execuções de teste
8. **Modifique In-Place**: Sempre modifique `context.messages` in-place, nunca substitua
## Tratamento de Erros
```python
@before_llm_call
def safe_hook(context: LLMCallHookContext) -> bool | None:
try:
# Sua lógica de hook
if some_condition:
return False
except Exception as e:
print(f"⚠️ Erro no hook: {e}")
# Decida: permitir ou bloquear em erro
return None # Permitir execução apesar do erro
```
## Segurança de Tipos
```python
from crewai.hooks import LLMCallHookContext, BeforeLLMCallHookType, AfterLLMCallHookType
# Anotações de tipo explícitas
def my_before_hook(context: LLMCallHookContext) -> bool | None:
return None
def my_after_hook(context: LLMCallHookContext) -> str | None:
return None
# Registro type-safe
register_before_llm_call_hook(my_before_hook)
register_after_llm_call_hook(my_after_hook)
```
## Solução de Problemas
### Hook Não Está Executando
- Verifique se o hook está registrado antes da execução da crew
- Verifique se hook anterior retornou `False` (bloqueia hooks subsequentes)
- Garanta que assinatura do hook corresponda ao tipo esperado
### Modificações de Mensagem Não Persistem
- Use modificações in-place: `context.messages.append()`
- Não substitua a lista: `context.messages = []`
### Modificações de Resposta Não Funcionam
- Retorne a string modificada dos hooks posteriores
- Retornar `None` mantém a resposta original
## Conclusão
Os Hooks de Chamada LLM fornecem capacidades poderosas para controlar e monitorar interações com modelos de linguagem no CrewAI. Use-os para implementar guardrails de segurança, gates de aprovação, logging, rastreamento de custos e sanitização de respostas. Combinados com tratamento adequado de erros e segurança de tipos, os hooks permitem sistemas de agentes robustos e prontos para produção.

View File

@@ -0,0 +1,498 @@
---
title: Hooks de Chamada de Ferramenta
description: Aprenda a usar hooks de chamada de ferramenta para interceptar, modificar e controlar execução de ferramentas no CrewAI
mode: "wide"
---
Os Hooks de Chamada de Ferramenta fornecem controle fino sobre a execução de ferramentas durante operações do agente. Esses hooks permitem interceptar chamadas de ferramenta, modificar entradas, transformar saídas, implementar verificações de segurança e adicionar logging ou monitoramento abrangente.
## Visão Geral
Os hooks de ferramenta são executados em dois pontos críticos:
- **Antes da Chamada de Ferramenta**: Modificar entradas, validar parâmetros ou bloquear execução
- **Depois da Chamada de Ferramenta**: Transformar resultados, sanitizar saídas ou registrar detalhes de execução
## Tipos de Hook
### Hooks Antes da Chamada de Ferramenta
Executados antes de cada execução de ferramenta, esses hooks podem:
- Inspecionar e modificar entradas de ferramenta
- Bloquear execução de ferramenta com base em condições
- Implementar gates de aprovação para operações perigosas
- Validar parâmetros
- Registrar invocações de ferramenta
**Assinatura:**
```python
def before_hook(context: ToolCallHookContext) -> bool | None:
# Retorne False para bloquear execução
# Retorne True ou None para permitir execução
...
```
### Hooks Depois da Chamada de Ferramenta
Executados depois de cada execução de ferramenta, esses hooks podem:
- Modificar ou sanitizar resultados de ferramenta
- Adicionar metadados ou formatação
- Registrar resultados de execução
- Implementar validação de resultado
- Transformar formatos de saída
**Assinatura:**
```python
def after_hook(context: ToolCallHookContext) -> str | None:
# Retorne string de resultado modificado
# Retorne None para manter resultado original
...
```
## Contexto do Hook de Ferramenta
O objeto `ToolCallHookContext` fornece acesso abrangente ao estado de execução da ferramenta:
```python
class ToolCallHookContext:
tool_name: str # Nome da ferramenta sendo chamada
tool_input: dict[str, Any] # Parâmetros de entrada mutáveis da ferramenta
tool: CrewStructuredTool # Referência da instância da ferramenta
agent: Agent | BaseAgent | None # Agente executando a ferramenta
task: Task | None # Tarefa atual
crew: Crew | None # Instância da crew
tool_result: str | None # Resultado da ferramenta (apenas hooks posteriores)
```
### Modificando Entradas de Ferramenta
**Importante:** Sempre modifique entradas de ferramenta in-place:
```python
# ✅ Correto - modificar in-place
def sanitize_input(context: ToolCallHookContext) -> None:
context.tool_input['query'] = context.tool_input['query'].lower()
# ❌ Errado - substitui referência do dict
def wrong_approach(context: ToolCallHookContext) -> None:
context.tool_input = {'query': 'nova consulta'}
```
## Métodos de Registro
### 1. Registro Baseado em Decoradores (Recomendado)
Use decoradores para sintaxe mais limpa:
```python
from crewai.hooks import before_tool_call, after_tool_call
@before_tool_call
def block_dangerous_tools(context):
"""Bloqueia ferramentas perigosas."""
dangerous_tools = ['delete_database', 'drop_table', 'rm_rf']
if context.tool_name in dangerous_tools:
print(f"⛔ Ferramenta perigosa bloqueada: {context.tool_name}")
return False # Bloquear execução
return None
@after_tool_call
def sanitize_results(context):
"""Sanitiza resultados."""
if context.tool_result and "password" in context.tool_result.lower():
return context.tool_result.replace("password", "[CENSURADO]")
return None
```
### 2. Hooks com Escopo de Crew
Registre hooks para uma instância específica de crew:
```python
from crewai import CrewBase
from crewai.project import crew
from crewai.hooks import before_tool_call_crew, after_tool_call_crew
@CrewBase
class MyProjCrew:
@before_tool_call_crew
def validate_tool_inputs(self, context):
# Aplica-se apenas a esta crew
if context.tool_name == "web_search":
if not context.tool_input.get('query'):
print("❌ Consulta de busca inválida")
return False
return None
@after_tool_call_crew
def log_tool_results(self, context):
# Logging de ferramenta específico da crew
print(f"✅ {context.tool_name} concluída")
return None
@crew
def crew(self) -> Crew:
return Crew(
agents=self.agents,
tasks=self.tasks,
process=Process.sequential,
verbose=True
)
```
## Casos de Uso Comuns
### 1. Guardrails de Segurança
```python
@before_tool_call
def safety_check(context: ToolCallHookContext) -> bool | None:
"""Bloqueia ferramentas que podem causar danos."""
destructive_tools = [
'delete_file',
'drop_table',
'remove_user',
'system_shutdown'
]
if context.tool_name in destructive_tools:
print(f"🛑 Ferramenta destrutiva bloqueada: {context.tool_name}")
return False
# Avisar em operações sensíveis
sensitive_tools = ['send_email', 'post_to_social_media', 'charge_payment']
if context.tool_name in sensitive_tools:
print(f"⚠️ Executando ferramenta sensível: {context.tool_name}")
return None
```
### 2. Gate de Aprovação Humana
```python
@before_tool_call
def require_approval_for_actions(context: ToolCallHookContext) -> bool | None:
"""Requer aprovação para ações específicas."""
approval_required = [
'send_email',
'make_purchase',
'delete_file',
'post_message'
]
if context.tool_name in approval_required:
response = context.request_human_input(
prompt=f"Aprovar {context.tool_name}?",
default_message=f"Entrada: {context.tool_input}\nDigite 'sim' para aprovar:"
)
if response.lower() != 'sim':
print(f"❌ Execução de ferramenta negada: {context.tool_name}")
return False
return None
```
### 3. Validação e Sanitização de Entrada
```python
@before_tool_call
def validate_and_sanitize_inputs(context: ToolCallHookContext) -> bool | None:
"""Valida e sanitiza entradas."""
# Validar consultas de busca
if context.tool_name == 'web_search':
query = context.tool_input.get('query', '')
if len(query) < 3:
print("❌ Consulta de busca muito curta")
return False
# Sanitizar consulta
context.tool_input['query'] = query.strip().lower()
# Validar caminhos de arquivo
if context.tool_name == 'read_file':
path = context.tool_input.get('path', '')
if '..' in path or path.startswith('/'):
print("❌ Caminho de arquivo inválido")
return False
return None
```
### 4. Sanitização de Resultado
```python
@after_tool_call
def sanitize_sensitive_data(context: ToolCallHookContext) -> str | None:
"""Sanitiza dados sensíveis."""
if not context.tool_result:
return None
import re
result = context.tool_result
# Remover chaves de API
result = re.sub(
r'(api[_-]?key|token)["\']?\s*[:=]\s*["\']?[\w-]+',
r'\1: [CENSURADO]',
result,
flags=re.IGNORECASE
)
# Remover endereços de email
result = re.sub(
r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b',
'[EMAIL-CENSURADO]',
result
)
# Remover números de cartão de crédito
result = re.sub(
r'\b\d{4}[- ]?\d{4}[- ]?\d{4}[- ]?\d{4}\b',
'[CARTÃO-CENSURADO]',
result
)
return result
```
### 5. Análise de Uso de Ferramenta
```python
import time
from collections import defaultdict
tool_stats = defaultdict(lambda: {'count': 0, 'total_time': 0, 'failures': 0})
@before_tool_call
def start_timer(context: ToolCallHookContext) -> None:
context.tool_input['_start_time'] = time.time()
return None
@after_tool_call
def track_tool_usage(context: ToolCallHookContext) -> None:
start_time = context.tool_input.get('_start_time', time.time())
duration = time.time() - start_time
tool_stats[context.tool_name]['count'] += 1
tool_stats[context.tool_name]['total_time'] += duration
if not context.tool_result or 'error' in context.tool_result.lower():
tool_stats[context.tool_name]['failures'] += 1
print(f"""
📊 Estatísticas da Ferramenta {context.tool_name}:
- Execuções: {tool_stats[context.tool_name]['count']}
- Tempo Médio: {tool_stats[context.tool_name]['total_time'] / tool_stats[context.tool_name]['count']:.2f}s
- Falhas: {tool_stats[context.tool_name]['failures']}
""")
return None
```
### 6. Limitação de Taxa
```python
from collections import defaultdict
from datetime import datetime, timedelta
tool_call_history = defaultdict(list)
@before_tool_call
def rate_limit_tools(context: ToolCallHookContext) -> bool | None:
"""Limita taxa de chamadas de ferramenta."""
tool_name = context.tool_name
now = datetime.now()
# Limpar entradas antigas (mais antigas que 1 minuto)
tool_call_history[tool_name] = [
call_time for call_time in tool_call_history[tool_name]
if now - call_time < timedelta(minutes=1)
]
# Verificar limite de taxa (máximo 10 chamadas por minuto)
if len(tool_call_history[tool_name]) >= 10:
print(f"🚫 Limite de taxa excedido para {tool_name}")
return False
# Registrar esta chamada
tool_call_history[tool_name].append(now)
return None
```
### 7. Logging de Debug
```python
@before_tool_call
def debug_tool_call(context: ToolCallHookContext) -> None:
"""Debug de chamada de ferramenta."""
print(f"""
🔍 Debug de Chamada de Ferramenta:
- Ferramenta: {context.tool_name}
- Agente: {context.agent.role if context.agent else 'Desconhecido'}
- Tarefa: {context.task.description[:50] if context.task else 'Desconhecida'}...
- Entrada: {context.tool_input}
""")
return None
@after_tool_call
def debug_tool_result(context: ToolCallHookContext) -> None:
"""Debug de resultado de ferramenta."""
if context.tool_result:
result_preview = context.tool_result[:200]
print(f"✅ Preview do Resultado: {result_preview}...")
else:
print("⚠️ Nenhum resultado retornado")
return None
```
## Gerenciamento de Hooks
### Desregistrando Hooks
```python
from crewai.hooks import (
unregister_before_tool_call_hook,
unregister_after_tool_call_hook
)
# Desregistrar hook específico
def my_hook(context):
...
register_before_tool_call_hook(my_hook)
# Mais tarde...
success = unregister_before_tool_call_hook(my_hook)
print(f"Desregistrado: {success}")
```
### Limpando Hooks
```python
from crewai.hooks import (
clear_before_tool_call_hooks,
clear_after_tool_call_hooks,
clear_all_tool_call_hooks
)
# Limpar tipo específico de hook
count = clear_before_tool_call_hooks()
print(f"Limpou {count} hooks antes")
# Limpar todos os hooks de ferramenta
before_count, after_count = clear_all_tool_call_hooks()
print(f"Limpou {before_count} hooks antes e {after_count} hooks depois")
```
## Padrões Avançados
### Execução Condicional de Hook
```python
@before_tool_call
def conditional_blocking(context: ToolCallHookContext) -> bool | None:
"""Bloqueia apenas em condições específicas."""
# Bloquear apenas para agentes específicos
if context.agent and context.agent.role == "junior_agent":
if context.tool_name in ['delete_file', 'send_email']:
print(f"❌ Agentes júnior não podem usar {context.tool_name}")
return False
# Bloquear apenas durante tarefas específicas
if context.task and "sensível" in context.task.description.lower():
if context.tool_name == 'web_search':
print("❌ Busca na web bloqueada para tarefas sensíveis")
return False
return None
```
### Modificação de Entrada com Consciência de Contexto
```python
@before_tool_call
def enhance_tool_inputs(context: ToolCallHookContext) -> None:
"""Adiciona contexto baseado no papel do agente."""
# Adicionar contexto baseado no papel do agente
if context.agent and context.agent.role == "researcher":
if context.tool_name == 'web_search':
# Adicionar restrições de domínio para pesquisadores
context.tool_input['domains'] = ['edu', 'gov', 'org']
# Adicionar contexto baseado na tarefa
if context.task and "urgente" in context.task.description.lower():
if context.tool_name == 'send_email':
context.tool_input['priority'] = 'high'
return None
```
## Melhores Práticas
1. **Mantenha Hooks Focados**: Cada hook deve ter uma responsabilidade única
2. **Evite Computação Pesada**: Hooks executam em cada chamada de ferramenta
3. **Trate Erros Graciosamente**: Use try-except para prevenir falhas de hooks
4. **Use Type Hints**: Aproveite `ToolCallHookContext` para melhor suporte IDE
5. **Documente Condições de Bloqueio**: Deixe claro quando/por que ferramentas são bloqueadas
6. **Teste Hooks Independentemente**: Teste unitário de hooks antes de usar em produção
7. **Limpe Hooks em Testes**: Use `clear_all_tool_call_hooks()` entre execuções de teste
8. **Modifique In-Place**: Sempre modifique `context.tool_input` in-place, nunca substitua
9. **Registre Decisões Importantes**: Especialmente ao bloquear execução de ferramenta
10. **Considere Performance**: Cache validações caras quando possível
## Tratamento de Erros
```python
@before_tool_call
def safe_validation(context: ToolCallHookContext) -> bool | None:
try:
# Sua lógica de validação
if not validate_input(context.tool_input):
return False
except Exception as e:
print(f"⚠️ Erro no hook: {e}")
# Decida: permitir ou bloquear em erro
return None # Permitir execução apesar do erro
```
## Segurança de Tipos
```python
from crewai.hooks import ToolCallHookContext, BeforeToolCallHookType, AfterToolCallHookType
# Anotações de tipo explícitas
def my_before_hook(context: ToolCallHookContext) -> bool | None:
return None
def my_after_hook(context: ToolCallHookContext) -> str | None:
return None
# Registro type-safe
register_before_tool_call_hook(my_before_hook)
register_after_tool_call_hook(my_after_hook)
```
## Solução de Problemas
### Hook Não Está Executando
- Verifique se hook está registrado antes da execução da crew
- Verifique se hook anterior retornou `False` (bloqueia execução e hooks subsequentes)
- Garanta que assinatura do hook corresponda ao tipo esperado
### Modificações de Entrada Não Funcionam
- Use modificações in-place: `context.tool_input['key'] = value`
- Não substitua o dict: `context.tool_input = {}`
### Modificações de Resultado Não Funcionam
- Retorne a string modificada dos hooks posteriores
- Retornar `None` mantém o resultado original
- Garanta que a ferramenta realmente retornou um resultado
### Ferramenta Bloqueada Inesperadamente
- Verifique todos os hooks antes por condições de bloqueio
- Verifique ordem de execução do hook
- Adicione logging de debug para identificar qual hook está bloqueando
## Conclusão
Os Hooks de Chamada de Ferramenta fornecem capacidades poderosas para controlar e monitorar execução de ferramentas no CrewAI. Use-os para implementar guardrails de segurança, gates de aprovação, validação de entrada, sanitização de resultado, logging e análise. Combinados com tratamento adequado de erros e segurança de tipos, os hooks permitem sistemas de agentes seguros e prontos para produção com observabilidade abrangente.

View File

@@ -733,9 +733,7 @@ Aqui está um exemplo básico para rotear requisições ao OpenAI, usando especi
- Coletam metadados relevantes para filtragem de logs
- Impõem permissões de acesso
Crie chaves de API através de:
- [Portkey App](https://app.portkey.ai/)
- [API Key Management API](/pt-BR/api-reference/admin-api/control-plane/api-keys/create-api-key)
Crie chaves de API através do [Portkey App](https://app.portkey.ai/)
Exemplo usando Python SDK:
```python
@@ -758,7 +756,7 @@ Aqui está um exemplo básico para rotear requisições ao OpenAI, usando especi
)
```
Para instruções detalhadas de gerenciamento de chaves, veja nossa [documentação de API Keys](/pt-BR/api-reference/admin-api/control-plane/api-keys/create-api-key).
Para instruções detalhadas de gerenciamento de chaves, veja a [documentação Portkey](https://portkey.ai/docs).
</Accordion>
<Accordion title="Etapa 4: Implante & Monitore">

View File

@@ -18,7 +18,7 @@ Essas ferramentas permitem que seus agentes interajam com serviços em nuvem, ac
Escreva e faça upload de arquivos para o armazenamento Amazon S3.
</Card>
<Card title="Bedrock Invoke Agent" icon="aws" href="/pt-BR/tools/cloud-storage/bedrockinvokeagenttool">
<Card title="Bedrock Invoke Agent" icon="aws" href="/pt-BR/tools/integration/bedrockinvokeagenttool">
Acione agentes Amazon Bedrock para tarefas orientadas por IA.
</Card>

View File

@@ -11,7 +11,7 @@ mode: "wide"
<Card
title="Bedrock Invoke Agent Tool"
icon="cloud"
href="/en/tools/tool-integrations/bedrockinvokeagenttool"
href="/pt-BR/tools/integration/bedrockinvokeagenttool"
color="#0891B2"
>
Invoke Amazon Bedrock Agents from CrewAI to orchestrate actions across AWS services.
@@ -20,7 +20,7 @@ mode: "wide"
<Card
title="CrewAI Automation Tool"
icon="bolt"
href="/en/tools/tool-integrations/crewaiautomationtool"
href="/pt-BR/tools/integration/crewaiautomationtool"
color="#7C3AED"
>
Automate deployment and operations by integrating CrewAI with external platforms and workflows.

View File

@@ -12,7 +12,7 @@ dependencies = [
"pytube>=15.0.0",
"requests>=2.32.5",
"docker>=7.1.0",
"crewai==1.3.0",
"crewai==1.5.0",
"lancedb>=0.5.4",
"tiktoken>=0.8.0",
"beautifulsoup4>=4.13.4",

View File

@@ -287,4 +287,4 @@ __all__ = [
"ZapierActionTools",
]
__version__ = "1.3.0"
__version__ = "1.5.0"

View File

@@ -12,12 +12,16 @@ from pydantic.types import ImportString
class QdrantToolSchema(BaseModel):
query: str = Field(..., description="Query to search in Qdrant DB")
query: str = Field(
..., description="Query to search in Qdrant DB - always required."
)
filter_by: str | None = Field(
default=None, description="Parameter to filter the search by."
default=None,
description="Parameter to filter the search by. When filtering, needs to be used in conjunction with filter_value.",
)
filter_value: Any | None = Field(
default=None, description="Value to filter the search by."
default=None,
description="Value to filter the search by. When filtering, needs to be used in conjunction with filter_by.",
)

View File

@@ -48,7 +48,7 @@ Repository = "https://github.com/crewAIInc/crewAI"
[project.optional-dependencies]
tools = [
"crewai-tools==1.3.0",
"crewai-tools==1.5.0",
]
embeddings = [
"tiktoken~=0.8.0"

View File

@@ -40,7 +40,7 @@ def _suppress_pydantic_deprecation_warnings() -> None:
_suppress_pydantic_deprecation_warnings()
__version__ = "1.3.0"
__version__ = "1.5.0"
_telemetry_submitted = False

View File

@@ -38,6 +38,7 @@ class A2AConfig(BaseModel):
max_turns: Maximum conversation turns with A2A agent (default: 10).
response_model: Optional Pydantic model for structured A2A agent responses.
fail_fast: If True, raise error when agent unreachable; if False, skip and continue (default: True).
trust_remote_completion_status: If True, return A2A agent's result directly when status is "completed"; if False, always ask server agent to respond (default: False).
"""
endpoint: Url = Field(description="A2A agent endpoint URL")
@@ -57,3 +58,7 @@ class A2AConfig(BaseModel):
default=True,
description="If True, raise an error immediately when the A2A agent is unreachable. If False, skip the A2A agent and continue execution.",
)
trust_remote_completion_status: bool = Field(
default=False,
description='If True, return the A2A agent\'s result directly when status is "completed" without asking the server agent to respond. If False, always ask the server agent to respond, allowing it to potentially delegate again.',
)

View File

@@ -52,7 +52,7 @@ def wrap_agent_with_a2a_instance(agent: Agent) -> None:
Args:
agent: The agent instance to wrap
"""
original_execute_task = agent.execute_task.__func__
original_execute_task = agent.execute_task.__func__ # type: ignore[attr-defined]
@wraps(original_execute_task)
def execute_task_with_a2a(
@@ -73,7 +73,7 @@ def wrap_agent_with_a2a_instance(agent: Agent) -> None:
Task execution result
"""
if not self.a2a:
return original_execute_task(self, task, context, tools)
return original_execute_task(self, task, context, tools) # type: ignore[no-any-return]
a2a_agents, agent_response_model = get_a2a_agents_and_response_model(self.a2a)
@@ -498,6 +498,23 @@ def _delegate_to_a2a(
conversation_history = a2a_result.get("history", [])
if a2a_result["status"] in ["completed", "input_required"]:
if (
a2a_result["status"] == "completed"
and agent_config.trust_remote_completion_status
):
result_text = a2a_result.get("result", "")
final_turn_number = turn_num + 1
crewai_event_bus.emit(
None,
A2AConversationCompletedEvent(
status="completed",
final_result=result_text,
error=None,
total_turns=final_turn_number,
),
)
return result_text # type: ignore[no-any-return]
final_result, next_request = _handle_agent_response_and_continue(
self=self,
a2a_result=a2a_result,

View File

@@ -40,6 +40,16 @@ from crewai.knowledge.source.base_knowledge_source import BaseKnowledgeSource
from crewai.knowledge.utils.knowledge_utils import extract_knowledge_context
from crewai.lite_agent import LiteAgent
from crewai.llms.base_llm import BaseLLM
from crewai.mcp import (
MCPClient,
MCPServerConfig,
MCPServerHTTP,
MCPServerSSE,
MCPServerStdio,
)
from crewai.mcp.transports.http import HTTPTransport
from crewai.mcp.transports.sse import SSETransport
from crewai.mcp.transports.stdio import StdioTransport
from crewai.memory.contextual.contextual_memory import ContextualMemory
from crewai.rag.embeddings.types import EmbedderConfig
from crewai.security.fingerprint import Fingerprint
@@ -108,6 +118,8 @@ class Agent(BaseAgent):
"""
_times_executed: int = PrivateAttr(default=0)
_mcp_clients: list[Any] = PrivateAttr(default_factory=list)
_last_messages: list[LLMMessage] = PrivateAttr(default_factory=list)
max_execution_time: int | None = Field(
default=None,
description="Maximum execution time for an agent to execute a task",
@@ -526,6 +538,15 @@ class Agent(BaseAgent):
self,
event=AgentExecutionCompletedEvent(agent=self, task=task, output=result),
)
self._last_messages = (
self.agent_executor.messages.copy()
if self.agent_executor and hasattr(self.agent_executor, "messages")
else []
)
self._cleanup_mcp_clients()
return result
def _execute_with_timeout(self, task_prompt: str, task: Task, timeout: int) -> Any:
@@ -649,30 +670,70 @@ class Agent(BaseAgent):
self._logger.log("error", f"Error getting platform tools: {e!s}")
return []
def get_mcp_tools(self, mcps: list[str]) -> list[BaseTool]:
"""Convert MCP server references to CrewAI tools."""
def get_mcp_tools(self, mcps: list[str | MCPServerConfig]) -> list[BaseTool]:
"""Convert MCP server references/configs to CrewAI tools.
Supports both string references (backwards compatible) and structured
configuration objects (MCPServerStdio, MCPServerHTTP, MCPServerSSE).
Args:
mcps: List of MCP server references (strings) or configurations.
Returns:
List of BaseTool instances from MCP servers.
"""
all_tools = []
clients = []
for mcp_ref in mcps:
try:
if mcp_ref.startswith("crewai-amp:"):
tools = self._get_amp_mcp_tools(mcp_ref)
elif mcp_ref.startswith("https://"):
tools = self._get_external_mcp_tools(mcp_ref)
else:
continue
for mcp_config in mcps:
if isinstance(mcp_config, str):
tools = self._get_mcp_tools_from_string(mcp_config)
else:
tools, client = self._get_native_mcp_tools(mcp_config)
if client:
clients.append(client)
all_tools.extend(tools)
self._logger.log(
"info", f"Successfully loaded {len(tools)} tools from {mcp_ref}"
)
except Exception as e:
self._logger.log("warning", f"Skipping MCP {mcp_ref} due to error: {e}")
continue
all_tools.extend(tools)
# Store clients for cleanup
self._mcp_clients.extend(clients)
return all_tools
def _cleanup_mcp_clients(self) -> None:
"""Cleanup MCP client connections after task execution."""
if not self._mcp_clients:
return
async def _disconnect_all() -> None:
for client in self._mcp_clients:
if client and hasattr(client, "connected") and client.connected:
await client.disconnect()
try:
asyncio.run(_disconnect_all())
except Exception as e:
self._logger.log("error", f"Error during MCP client cleanup: {e}")
finally:
self._mcp_clients.clear()
def _get_mcp_tools_from_string(self, mcp_ref: str) -> list[BaseTool]:
"""Get tools from legacy string-based MCP references.
This method maintains backwards compatibility with string-based
MCP references (https://... and crewai-amp:...).
Args:
mcp_ref: String reference to MCP server.
Returns:
List of BaseTool instances.
"""
if mcp_ref.startswith("crewai-amp:"):
return self._get_amp_mcp_tools(mcp_ref)
if mcp_ref.startswith("https://"):
return self._get_external_mcp_tools(mcp_ref)
return []
def _get_external_mcp_tools(self, mcp_ref: str) -> list[BaseTool]:
"""Get tools from external HTTPS MCP server with graceful error handling."""
from crewai.tools.mcp_tool_wrapper import MCPToolWrapper
@@ -731,6 +792,164 @@ class Agent(BaseAgent):
)
return []
def _get_native_mcp_tools(
self, mcp_config: MCPServerConfig
) -> tuple[list[BaseTool], Any | None]:
"""Get tools from MCP server using structured configuration.
This method creates an MCP client based on the configuration type,
connects to the server, discovers tools, applies filtering, and
returns wrapped tools along with the client instance for cleanup.
Args:
mcp_config: MCP server configuration (MCPServerStdio, MCPServerHTTP, or MCPServerSSE).
Returns:
Tuple of (list of BaseTool instances, MCPClient instance for cleanup).
"""
from crewai.tools.base_tool import BaseTool
from crewai.tools.mcp_native_tool import MCPNativeTool
if isinstance(mcp_config, MCPServerStdio):
transport = StdioTransport(
command=mcp_config.command,
args=mcp_config.args,
env=mcp_config.env,
)
server_name = f"{mcp_config.command}_{'_'.join(mcp_config.args)}"
elif isinstance(mcp_config, MCPServerHTTP):
transport = HTTPTransport(
url=mcp_config.url,
headers=mcp_config.headers,
streamable=mcp_config.streamable,
)
server_name = self._extract_server_name(mcp_config.url)
elif isinstance(mcp_config, MCPServerSSE):
transport = SSETransport(
url=mcp_config.url,
headers=mcp_config.headers,
)
server_name = self._extract_server_name(mcp_config.url)
else:
raise ValueError(f"Unsupported MCP server config type: {type(mcp_config)}")
client = MCPClient(
transport=transport,
cache_tools_list=mcp_config.cache_tools_list,
)
async def _setup_client_and_list_tools() -> list[dict[str, Any]]:
"""Async helper to connect and list tools in same event loop."""
try:
if not client.connected:
await client.connect()
tools_list = await client.list_tools()
try:
await client.disconnect()
# Small delay to allow background tasks to finish cleanup
# This helps prevent "cancel scope in different task" errors
# when asyncio.run() closes the event loop
await asyncio.sleep(0.1)
except Exception as e:
self._logger.log("error", f"Error during disconnect: {e}")
return tools_list
except Exception as e:
if client.connected:
await client.disconnect()
await asyncio.sleep(0.1)
raise RuntimeError(
f"Error during setup client and list tools: {e}"
) from e
try:
try:
asyncio.get_running_loop()
import concurrent.futures
with concurrent.futures.ThreadPoolExecutor() as executor:
future = executor.submit(
asyncio.run, _setup_client_and_list_tools()
)
tools_list = future.result()
except RuntimeError:
try:
tools_list = asyncio.run(_setup_client_and_list_tools())
except RuntimeError as e:
error_msg = str(e).lower()
if "cancel scope" in error_msg or "task" in error_msg:
raise ConnectionError(
"MCP connection failed due to event loop cleanup issues. "
"This may be due to authentication errors or server unavailability."
) from e
except asyncio.CancelledError as e:
raise ConnectionError(
"MCP connection was cancelled. This may indicate an authentication "
"error or server unavailability."
) from e
if mcp_config.tool_filter:
filtered_tools = []
for tool in tools_list:
if callable(mcp_config.tool_filter):
try:
from crewai.mcp.filters import ToolFilterContext
context = ToolFilterContext(
agent=self,
server_name=server_name,
run_context=None,
)
if mcp_config.tool_filter(context, tool):
filtered_tools.append(tool)
except (TypeError, AttributeError):
if mcp_config.tool_filter(tool):
filtered_tools.append(tool)
else:
# Not callable - include tool
filtered_tools.append(tool)
tools_list = filtered_tools
tools = []
for tool_def in tools_list:
tool_name = tool_def.get("name", "")
if not tool_name:
continue
# Convert inputSchema to Pydantic model if present
args_schema = None
if tool_def.get("inputSchema"):
args_schema = self._json_schema_to_pydantic(
tool_name, tool_def["inputSchema"]
)
tool_schema = {
"description": tool_def.get("description", ""),
"args_schema": args_schema,
}
try:
native_tool = MCPNativeTool(
mcp_client=client,
tool_name=tool_name,
tool_schema=tool_schema,
server_name=server_name,
)
tools.append(native_tool)
except Exception as e:
self._logger.log("error", f"Failed to create native MCP tool: {e}")
continue
return cast(list[BaseTool], tools), client
except Exception as e:
if client.connected:
asyncio.run(client.disconnect())
raise RuntimeError(f"Failed to get native MCP tools: {e}") from e
def _get_amp_mcp_tools(self, amp_ref: str) -> list[BaseTool]:
"""Get tools from CrewAI AMP MCP marketplace."""
# Parse: "crewai-amp:mcp-name" or "crewai-amp:mcp-name#tool_name"
@@ -1129,6 +1348,15 @@ class Agent(BaseAgent):
def set_fingerprint(self, fingerprint: Fingerprint) -> None:
self.security_config.fingerprint = fingerprint
@property
def last_messages(self) -> list[LLMMessage]:
"""Get messages from the last task execution.
Returns:
List of LLM messages from the most recent task execution.
"""
return self._last_messages
def _get_knowledge_search_query(self, task_prompt: str, task: Task) -> str | None:
"""Generate a search query for the knowledge base based on the task description."""
crewai_event_bus.emit(

View File

@@ -25,6 +25,7 @@ from crewai.agents.tools_handler import ToolsHandler
from crewai.knowledge.knowledge import Knowledge
from crewai.knowledge.knowledge_config import KnowledgeConfig
from crewai.knowledge.source.base_knowledge_source import BaseKnowledgeSource
from crewai.mcp.config import MCPServerConfig
from crewai.rag.embeddings.types import EmbedderConfig
from crewai.security.security_config import SecurityConfig
from crewai.tools.base_tool import BaseTool, Tool
@@ -194,7 +195,7 @@ class BaseAgent(BaseModel, ABC, metaclass=AgentMeta):
default=None,
description="List of applications or application/action combinations that the agent can access through CrewAI Platform. Can contain app names (e.g., 'gmail') or specific actions (e.g., 'gmail/send_email')",
)
mcps: list[str] | None = Field(
mcps: list[str | MCPServerConfig] | None = Field(
default=None,
description="List of MCP server references. Supports 'https://server.com/path' for external servers and 'crewai-amp:mcp-name' for AMP marketplace. Use '#tool_name' suffix for specific tools.",
)
@@ -253,20 +254,36 @@ class BaseAgent(BaseModel, ABC, metaclass=AgentMeta):
@field_validator("mcps")
@classmethod
def validate_mcps(cls, mcps: list[str] | None) -> list[str] | None:
def validate_mcps(
cls, mcps: list[str | MCPServerConfig] | None
) -> list[str | MCPServerConfig] | None:
"""Validate MCP server references and configurations.
Supports both string references (for backwards compatibility) and
structured configuration objects (MCPServerStdio, MCPServerHTTP, MCPServerSSE).
"""
if not mcps:
return mcps
validated_mcps = []
for mcp in mcps:
if mcp.startswith(("https://", "crewai-amp:")):
if isinstance(mcp, str):
if mcp.startswith(("https://", "crewai-amp:")):
validated_mcps.append(mcp)
else:
raise ValueError(
f"Invalid MCP reference: {mcp}. "
"String references must start with 'https://' or 'crewai-amp:'"
)
elif isinstance(mcp, (MCPServerConfig)):
validated_mcps.append(mcp)
else:
raise ValueError(
f"Invalid MCP reference: {mcp}. Must start with 'https://' or 'crewai-amp:'"
f"Invalid MCP configuration: {type(mcp)}. "
"Must be a string reference or MCPServerConfig instance."
)
return list(set(validated_mcps))
return validated_mcps
@model_validator(mode="after")
def validate_and_set_attributes(self) -> Self:
@@ -343,7 +360,7 @@ class BaseAgent(BaseModel, ABC, metaclass=AgentMeta):
"""Get platform tools for the specified list of applications and/or application/action combinations."""
@abstractmethod
def get_mcp_tools(self, mcps: list[str]) -> list[BaseTool]:
def get_mcp_tools(self, mcps: list[str | MCPServerConfig]) -> list[BaseTool]:
"""Get MCP tools for the specified list of MCP server references."""
def copy(self) -> Self: # type: ignore # Signature of "copy" incompatible with supertype "BaseModel"

View File

@@ -23,6 +23,10 @@ from crewai.events.types.logging_events import (
AgentLogsExecutionEvent,
AgentLogsStartedEvent,
)
from crewai.hooks.llm_hooks import (
get_after_llm_call_hooks,
get_before_llm_call_hooks,
)
from crewai.utilities.agent_utils import (
enforce_rpm_limit,
format_message_for_llm,
@@ -130,6 +134,10 @@ class CrewAgentExecutor(CrewAgentExecutorMixin):
self.messages: list[LLMMessage] = []
self.iterations = 0
self.log_error_after = 3
self.before_llm_call_hooks: list[Callable] = []
self.after_llm_call_hooks: list[Callable] = []
self.before_llm_call_hooks.extend(get_before_llm_call_hooks())
self.after_llm_call_hooks.extend(get_after_llm_call_hooks())
if self.llm:
# This may be mutating the shared llm object and needs further evaluation
existing_stop = getattr(self.llm, "stop", [])
@@ -214,6 +222,7 @@ class CrewAgentExecutor(CrewAgentExecutorMixin):
llm=self.llm,
callbacks=self.callbacks,
)
break
enforce_rpm_limit(self.request_within_rpm_limit)
@@ -225,8 +234,9 @@ class CrewAgentExecutor(CrewAgentExecutorMixin):
from_task=self.task,
from_agent=self.agent,
response_model=self.response_model,
executor_context=self,
)
formatted_answer = process_llm_response(answer, self.use_stop_words)
formatted_answer = process_llm_response(answer, self.use_stop_words) # type: ignore[assignment]
if isinstance(formatted_answer, AgentAction):
# Extract agent fingerprint if available
@@ -253,16 +263,17 @@ class CrewAgentExecutor(CrewAgentExecutorMixin):
task=self.task,
agent=self.agent,
function_calling_llm=self.function_calling_llm,
crew=self.crew,
)
formatted_answer = self._handle_agent_action(
formatted_answer, tool_result
)
self._invoke_step_callback(formatted_answer)
self._append_message(formatted_answer.text)
self._invoke_step_callback(formatted_answer) # type: ignore[arg-type]
self._append_message(formatted_answer.text) # type: ignore[union-attr,attr-defined]
except OutputParserError as e: # noqa: PERF203
formatted_answer = handle_output_parser_exception(
except OutputParserError as e:
formatted_answer = handle_output_parser_exception( # type: ignore[assignment]
e=e,
messages=self.messages,
iterations=self.iterations,

View File

@@ -1,5 +1,5 @@
import time
from typing import Any
from typing import TYPE_CHECKING, Any, TypeVar, cast
import webbrowser
from pydantic import BaseModel, Field
@@ -13,6 +13,8 @@ from crewai.cli.shared.token_manager import TokenManager
console = Console()
TOauth2Settings = TypeVar("TOauth2Settings", bound="Oauth2Settings")
class Oauth2Settings(BaseModel):
provider: str = Field(
@@ -28,9 +30,15 @@ class Oauth2Settings(BaseModel):
description="OAuth2 audience value, typically used to identify the target API or resource.",
default=None,
)
extra: dict[str, Any] = Field(
description="Extra configuration for the OAuth2 provider.",
default={},
)
@classmethod
def from_settings(cls):
def from_settings(cls: type[TOauth2Settings]) -> TOauth2Settings:
"""Create an Oauth2Settings instance from the CLI settings."""
settings = Settings()
return cls(
@@ -38,12 +46,20 @@ class Oauth2Settings(BaseModel):
domain=settings.oauth2_domain,
client_id=settings.oauth2_client_id,
audience=settings.oauth2_audience,
extra=settings.oauth2_extra,
)
if TYPE_CHECKING:
from crewai.cli.authentication.providers.base_provider import BaseProvider
class ProviderFactory:
@classmethod
def from_settings(cls, settings: Oauth2Settings | None = None):
def from_settings(
cls: type["ProviderFactory"], # noqa: UP037
settings: Oauth2Settings | None = None,
) -> "BaseProvider": # noqa: UP037
settings = settings or Oauth2Settings.from_settings()
import importlib
@@ -53,11 +69,11 @@ class ProviderFactory:
)
provider = getattr(module, f"{settings.provider.capitalize()}Provider")
return provider(settings)
return cast("BaseProvider", provider(settings))
class AuthenticationCommand:
def __init__(self):
def __init__(self) -> None:
self.token_manager = TokenManager()
self.oauth2_provider = ProviderFactory.from_settings()
@@ -84,7 +100,7 @@ class AuthenticationCommand:
timeout=20,
)
response.raise_for_status()
return response.json()
return cast(dict[str, Any], response.json())
def _display_auth_instructions(self, device_code_data: dict[str, str]) -> None:
"""Display the authentication instructions to the user."""

View File

@@ -24,3 +24,7 @@ class BaseProvider(ABC):
@abstractmethod
def get_client_id(self) -> str: ...
def get_required_fields(self) -> list[str]:
"""Returns which provider-specific fields inside the "extra" dict will be required"""
return []

View File

@@ -3,16 +3,16 @@ from crewai.cli.authentication.providers.base_provider import BaseProvider
class OktaProvider(BaseProvider):
def get_authorize_url(self) -> str:
return f"https://{self.settings.domain}/oauth2/default/v1/device/authorize"
return f"{self._oauth2_base_url()}/v1/device/authorize"
def get_token_url(self) -> str:
return f"https://{self.settings.domain}/oauth2/default/v1/token"
return f"{self._oauth2_base_url()}/v1/token"
def get_jwks_url(self) -> str:
return f"https://{self.settings.domain}/oauth2/default/v1/keys"
return f"{self._oauth2_base_url()}/v1/keys"
def get_issuer(self) -> str:
return f"https://{self.settings.domain}/oauth2/default"
return self._oauth2_base_url().removesuffix("/oauth2")
def get_audience(self) -> str:
if self.settings.audience is None:
@@ -27,3 +27,16 @@ class OktaProvider(BaseProvider):
"Client ID is required. Please set it in the configuration."
)
return self.settings.client_id
def get_required_fields(self) -> list[str]:
return ["authorization_server_name", "using_org_auth_server"]
def _oauth2_base_url(self) -> str:
using_org_auth_server = self.settings.extra.get("using_org_auth_server", False)
if using_org_auth_server:
base_url = f"https://{self.settings.domain}/oauth2"
else:
base_url = f"https://{self.settings.domain}/oauth2/{self.settings.extra.get('authorization_server_name', 'default')}"
return f"{base_url}"

View File

@@ -493,5 +493,206 @@ def config_reset():
config_command.reset_all_settings()
@crewai.group()
def env():
"""Environment variable commands."""
@env.command("view")
def env_view():
"""View tracing-related environment variables."""
import os
from pathlib import Path
from rich.console import Console
from rich.panel import Panel
from rich.table import Table
console = Console()
# Check for .env file
env_file = Path(".env")
env_file_exists = env_file.exists()
# Create table for environment variables
table = Table(show_header=True, header_style="bold cyan", expand=True)
table.add_column("Environment Variable", style="cyan", width=30)
table.add_column("Value", style="white", width=20)
table.add_column("Source", style="yellow", width=20)
# Check CREWAI_TRACING_ENABLED
crewai_tracing = os.getenv("CREWAI_TRACING_ENABLED", "")
if crewai_tracing:
table.add_row(
"CREWAI_TRACING_ENABLED",
crewai_tracing,
"Environment/Shell",
)
else:
table.add_row(
"CREWAI_TRACING_ENABLED",
"[dim]Not set[/dim]",
"[dim]—[/dim]",
)
# Check other related env vars
crewai_testing = os.getenv("CREWAI_TESTING", "")
if crewai_testing:
table.add_row("CREWAI_TESTING", crewai_testing, "Environment/Shell")
crewai_user_id = os.getenv("CREWAI_USER_ID", "")
if crewai_user_id:
table.add_row("CREWAI_USER_ID", crewai_user_id, "Environment/Shell")
crewai_org_id = os.getenv("CREWAI_ORG_ID", "")
if crewai_org_id:
table.add_row("CREWAI_ORG_ID", crewai_org_id, "Environment/Shell")
# Check if .env file exists
table.add_row(
".env file",
"✅ Found" if env_file_exists else "❌ Not found",
str(env_file.resolve()) if env_file_exists else "N/A",
)
panel = Panel(
table,
title="Tracing Environment Variables",
border_style="blue",
padding=(1, 2),
)
console.print("\n")
console.print(panel)
# Show helpful message
if env_file_exists:
console.print(
"\n[dim]💡 Tip: To enable tracing via .env, add: CREWAI_TRACING_ENABLED=true[/dim]"
)
else:
console.print(
"\n[dim]💡 Tip: Create a .env file in your project root and add: CREWAI_TRACING_ENABLED=true[/dim]"
)
console.print()
@crewai.group()
def traces():
"""Trace collection management commands."""
@traces.command("enable")
def traces_enable():
"""Enable trace collection for crew/flow executions."""
from rich.console import Console
from rich.panel import Panel
from crewai.events.listeners.tracing.utils import (
_load_user_data,
_save_user_data,
)
console = Console()
# Update user data to enable traces
user_data = _load_user_data()
user_data["trace_consent"] = True
user_data["first_execution_done"] = True
_save_user_data(user_data)
panel = Panel(
"✅ Trace collection has been enabled!\n\n"
"Your crew/flow executions will now send traces to CrewAI+.\n"
"Use 'crewai traces disable' to turn off trace collection.",
title="Traces Enabled",
border_style="green",
padding=(1, 2),
)
console.print(panel)
@traces.command("disable")
def traces_disable():
"""Disable trace collection for crew/flow executions."""
from rich.console import Console
from rich.panel import Panel
from crewai.events.listeners.tracing.utils import (
_load_user_data,
_save_user_data,
)
console = Console()
# Update user data to disable traces
user_data = _load_user_data()
user_data["trace_consent"] = False
user_data["first_execution_done"] = True
_save_user_data(user_data)
panel = Panel(
"❌ Trace collection has been disabled!\n\n"
"Your crew/flow executions will no longer send traces.\n"
"Use 'crewai traces enable' to turn trace collection back on.",
title="Traces Disabled",
border_style="red",
padding=(1, 2),
)
console.print(panel)
@traces.command("status")
def traces_status():
"""Show current trace collection status."""
import os
from rich.console import Console
from rich.panel import Panel
from rich.table import Table
from crewai.events.listeners.tracing.utils import (
_load_user_data,
is_tracing_enabled,
)
console = Console()
user_data = _load_user_data()
table = Table(show_header=False, box=None)
table.add_column("Setting", style="cyan")
table.add_column("Value", style="white")
# Check environment variable
env_enabled = os.getenv("CREWAI_TRACING_ENABLED", "false")
table.add_row("CREWAI_TRACING_ENABLED", env_enabled)
# Check user consent
trace_consent = user_data.get("trace_consent")
if trace_consent is True:
consent_status = "✅ Enabled (user consented)"
elif trace_consent is False:
consent_status = "❌ Disabled (user declined)"
else:
consent_status = "⚪ Not set (first-time user)"
table.add_row("User Consent", consent_status)
# Check overall status
if is_tracing_enabled():
overall_status = "✅ ENABLED"
border_style = "green"
else:
overall_status = "❌ DISABLED"
border_style = "red"
table.add_row("Overall Status", overall_status)
panel = Panel(
table,
title="Trace Collection Status",
border_style=border_style,
padding=(1, 2),
)
console.print(panel)
if __name__ == "__main__":
crewai()

View File

@@ -11,18 +11,18 @@ console = Console()
class BaseCommand:
def __init__(self):
def __init__(self) -> None:
self._telemetry = Telemetry()
self._telemetry.set_tracer()
class PlusAPIMixin:
def __init__(self, telemetry):
def __init__(self, telemetry: Telemetry) -> None:
try:
telemetry.set_tracer()
self.plus_api_client = PlusAPI(api_key=get_auth_token())
except Exception:
self._deploy_signup_error_span = telemetry.deploy_signup_error_span()
telemetry.deploy_signup_error_span()
console.print(
"Please sign up/login to CrewAI+ before using the CLI.",
style="bold red",

View File

@@ -2,6 +2,7 @@ import json
from logging import getLogger
from pathlib import Path
import tempfile
from typing import Any
from pydantic import BaseModel, Field
@@ -136,7 +137,12 @@ class Settings(BaseModel):
default=DEFAULT_CLI_SETTINGS["oauth2_domain"],
)
def __init__(self, config_path: Path | None = None, **data):
oauth2_extra: dict[str, Any] = Field(
description="Extra configuration for the OAuth2 provider.",
default={},
)
def __init__(self, config_path: Path | None = None, **data: dict[str, Any]) -> None:
"""Load Settings from config path with fallback support"""
if config_path is None:
config_path = get_writable_config_path()

View File

@@ -1,9 +1,10 @@
from typing import Any
from typing import Any, cast
import requests
from requests.exceptions import JSONDecodeError, RequestException
from rich.console import Console
from crewai.cli.authentication.main import Oauth2Settings, ProviderFactory
from crewai.cli.command import BaseCommand
from crewai.cli.settings.main import SettingsCommand
from crewai.cli.version import get_crewai_version
@@ -13,7 +14,7 @@ console = Console()
class EnterpriseConfigureCommand(BaseCommand):
def __init__(self):
def __init__(self) -> None:
super().__init__()
self.settings_command = SettingsCommand()
@@ -54,25 +55,12 @@ class EnterpriseConfigureCommand(BaseCommand):
except JSONDecodeError as e:
raise ValueError(f"Invalid JSON response from {oauth_endpoint}") from e
required_fields = [
"audience",
"domain",
"device_authorization_client_id",
"provider",
]
missing_fields = [
field for field in required_fields if field not in oauth_config
]
if missing_fields:
raise ValueError(
f"Missing required fields in OAuth2 configuration: {', '.join(missing_fields)}"
)
self._validate_oauth_config(oauth_config)
console.print(
"✅ Successfully retrieved OAuth2 configuration", style="green"
)
return oauth_config
return cast(dict[str, Any], oauth_config)
except RequestException as e:
raise ValueError(f"Failed to connect to enterprise URL: {e!s}") from e
@@ -89,6 +77,7 @@ class EnterpriseConfigureCommand(BaseCommand):
"oauth2_audience": oauth_config["audience"],
"oauth2_client_id": oauth_config["device_authorization_client_id"],
"oauth2_domain": oauth_config["domain"],
"oauth2_extra": oauth_config["extra"],
}
console.print("🔄 Updating local OAuth2 configuration...")
@@ -99,3 +88,38 @@ class EnterpriseConfigureCommand(BaseCommand):
except Exception as e:
raise ValueError(f"Failed to update OAuth2 settings: {e!s}") from e
def _validate_oauth_config(self, oauth_config: dict[str, Any]) -> None:
required_fields = [
"audience",
"domain",
"device_authorization_client_id",
"provider",
"extra",
]
missing_basic_fields = [
field for field in required_fields if field not in oauth_config
]
missing_provider_specific_fields = [
field
for field in self._get_provider_specific_fields(oauth_config["provider"])
if field not in oauth_config.get("extra", {})
]
if missing_basic_fields:
raise ValueError(
f"Missing required fields in OAuth2 configuration: [{', '.join(missing_basic_fields)}]"
)
if missing_provider_specific_fields:
raise ValueError(
f"Missing authentication provider required fields in OAuth2 configuration: [{', '.join(missing_provider_specific_fields)}] (Configured provider: '{oauth_config['provider']}')"
)
def _get_provider_specific_fields(self, provider_name: str) -> list[str]:
provider = ProviderFactory.from_settings(
Oauth2Settings(provider=provider_name, client_id="dummy", domain="dummy")
)
return provider.get_required_fields()

View File

@@ -3,7 +3,7 @@ import subprocess
class Repository:
def __init__(self, path="."):
def __init__(self, path: str = ".") -> None:
self.path = path
if not self.is_git_installed():

View File

@@ -1,3 +1,4 @@
from typing import Any
from urllib.parse import urljoin
import requests
@@ -36,19 +37,21 @@ class PlusAPI:
str(settings.enterprise_base_url) or DEFAULT_CREWAI_ENTERPRISE_URL
)
def _make_request(self, method: str, endpoint: str, **kwargs) -> requests.Response:
def _make_request(
self, method: str, endpoint: str, **kwargs: Any
) -> requests.Response:
url = urljoin(self.base_url, endpoint)
session = requests.Session()
session.trust_env = False
return session.request(method, url, headers=self.headers, **kwargs)
def login_to_tool_repository(self):
def login_to_tool_repository(self) -> requests.Response:
return self._make_request("POST", f"{self.TOOLS_RESOURCE}/login")
def get_tool(self, handle: str):
def get_tool(self, handle: str) -> requests.Response:
return self._make_request("GET", f"{self.TOOLS_RESOURCE}/{handle}")
def get_agent(self, handle: str):
def get_agent(self, handle: str) -> requests.Response:
return self._make_request("GET", f"{self.AGENTS_RESOURCE}/{handle}")
def publish_tool(
@@ -58,8 +61,8 @@ class PlusAPI:
version: str,
description: str | None,
encoded_file: str,
available_exports: list[str] | None = None,
):
available_exports: list[dict[str, Any]] | None = None,
) -> requests.Response:
params = {
"handle": handle,
"public": is_public,
@@ -111,13 +114,13 @@ class PlusAPI:
def list_crews(self) -> requests.Response:
return self._make_request("GET", self.CREWS_RESOURCE)
def create_crew(self, payload) -> requests.Response:
def create_crew(self, payload: dict[str, Any]) -> requests.Response:
return self._make_request("POST", self.CREWS_RESOURCE, json=payload)
def get_organizations(self) -> requests.Response:
return self._make_request("GET", self.ORGANIZATIONS_RESOURCE)
def initialize_trace_batch(self, payload) -> requests.Response:
def initialize_trace_batch(self, payload: dict[str, Any]) -> requests.Response:
return self._make_request(
"POST",
f"{self.TRACING_RESOURCE}/batches",
@@ -125,14 +128,18 @@ class PlusAPI:
timeout=30,
)
def initialize_ephemeral_trace_batch(self, payload) -> requests.Response:
def initialize_ephemeral_trace_batch(
self, payload: dict[str, Any]
) -> requests.Response:
return self._make_request(
"POST",
f"{self.EPHEMERAL_TRACING_RESOURCE}/batches",
json=payload,
)
def send_trace_events(self, trace_batch_id: str, payload) -> requests.Response:
def send_trace_events(
self, trace_batch_id: str, payload: dict[str, Any]
) -> requests.Response:
return self._make_request(
"POST",
f"{self.TRACING_RESOURCE}/batches/{trace_batch_id}/events",
@@ -141,7 +148,7 @@ class PlusAPI:
)
def send_ephemeral_trace_events(
self, trace_batch_id: str, payload
self, trace_batch_id: str, payload: dict[str, Any]
) -> requests.Response:
return self._make_request(
"POST",
@@ -150,7 +157,9 @@ class PlusAPI:
timeout=30,
)
def finalize_trace_batch(self, trace_batch_id: str, payload) -> requests.Response:
def finalize_trace_batch(
self, trace_batch_id: str, payload: dict[str, Any]
) -> requests.Response:
return self._make_request(
"PATCH",
f"{self.TRACING_RESOURCE}/batches/{trace_batch_id}/finalize",
@@ -159,7 +168,7 @@ class PlusAPI:
)
def finalize_ephemeral_trace_batch(
self, trace_batch_id: str, payload
self, trace_batch_id: str, payload: dict[str, Any]
) -> requests.Response:
return self._make_request(
"PATCH",

View File

@@ -1,3 +1,5 @@
from datetime import datetime
import os
from typing import Any
from rich.console import Console
@@ -5,6 +7,7 @@ from rich.table import Table
from crewai.cli.command import BaseCommand
from crewai.cli.config import HIDDEN_SETTINGS_KEYS, READONLY_SETTINGS_KEYS, Settings
from crewai.events.listeners.tracing.utils import _load_user_data
console = Console()
@@ -34,11 +37,47 @@ class SettingsCommand(BaseCommand):
current_value = getattr(self.settings, field_name)
description = field_info.description or "No description available"
display_value = (
str(current_value) if current_value is not None else "Not set"
str(current_value) if current_value not in [None, {}] else "Not set"
)
table.add_row(field_name, display_value, description)
# Add trace-related settings from user data
user_data = _load_user_data()
# CREWAI_TRACING_ENABLED environment variable
env_tracing = os.getenv("CREWAI_TRACING_ENABLED", "")
env_tracing_display = env_tracing if env_tracing else "Not set"
table.add_row(
"CREWAI_TRACING_ENABLED",
env_tracing_display,
"Environment variable to enable/disable tracing",
)
# Trace consent status
trace_consent = user_data.get("trace_consent")
if trace_consent is True:
consent_display = "✅ Enabled"
elif trace_consent is False:
consent_display = "❌ Disabled"
else:
consent_display = "Not set"
table.add_row(
"trace_consent", consent_display, "Whether trace collection is enabled"
)
# First execution timestamp
if user_data.get("first_execution_at"):
timestamp = datetime.fromtimestamp(user_data["first_execution_at"])
first_exec_display = timestamp.strftime("%Y-%m-%d %H:%M:%S")
else:
first_exec_display = "Not set"
table.add_row(
"first_execution_at",
first_exec_display,
"Timestamp of first crew/flow execution",
)
console.print(table)
def set(self, key: str, value: str) -> None:

View File

@@ -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]==1.3.0"
"crewai[tools]==1.5.0"
]
[project.scripts]

View File

@@ -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]==1.3.0"
"crewai[tools]==1.5.0"
]
[project.scripts]

View File

@@ -30,11 +30,11 @@ class ToolCommand(BaseCommand, PlusAPIMixin):
A class to handle tool repository related operations for CrewAI projects.
"""
def __init__(self):
def __init__(self) -> None:
BaseCommand.__init__(self)
PlusAPIMixin.__init__(self, telemetry=self._telemetry)
def create(self, handle: str):
def create(self, handle: str) -> None:
self._ensure_not_in_project()
folder_name = handle.replace(" ", "_").replace("-", "_").lower()
@@ -64,7 +64,7 @@ class ToolCommand(BaseCommand, PlusAPIMixin):
finally:
os.chdir(old_directory)
def publish(self, is_public: bool, force: bool = False):
def publish(self, is_public: bool, force: bool = False) -> None:
if not git.Repository().is_synced() and not force:
console.print(
"[bold red]Failed to publish tool.[/bold red]\n"
@@ -137,7 +137,7 @@ class ToolCommand(BaseCommand, PlusAPIMixin):
style="bold green",
)
def install(self, handle: str):
def install(self, handle: str) -> None:
self._print_current_organization()
get_response = self.plus_api_client.get_tool(handle)
@@ -180,7 +180,7 @@ class ToolCommand(BaseCommand, PlusAPIMixin):
settings.org_name = login_response_json["current_organization"]["name"]
settings.dump()
def _add_package(self, tool_details: dict[str, Any]):
def _add_package(self, tool_details: dict[str, Any]) -> None:
is_from_pypi = tool_details.get("source", None) == "pypi"
tool_handle = tool_details["handle"]
repository_handle = tool_details["repository"]["handle"]
@@ -209,7 +209,7 @@ class ToolCommand(BaseCommand, PlusAPIMixin):
click.echo(add_package_result.stderr, err=True)
raise SystemExit
def _ensure_not_in_project(self):
def _ensure_not_in_project(self) -> None:
if os.path.isfile("./pyproject.toml"):
console.print(
"[bold red]Oops! It looks like you're inside a project.[/bold red]"

View File

@@ -5,7 +5,7 @@ import os
from pathlib import Path
import shutil
import sys
from typing import Any, get_type_hints
from typing import Any, cast, get_type_hints
import click
from rich.console import Console
@@ -23,7 +23,9 @@ if sys.version_info >= (3, 11):
console = Console()
def copy_template(src, dst, name, class_name, folder_name):
def copy_template(
src: Path, dst: Path, name: str, class_name: str, folder_name: str
) -> None:
"""Copy a file from src to dst."""
with open(src, "r") as file:
content = file.read()
@@ -40,13 +42,13 @@ def copy_template(src, dst, name, class_name, folder_name):
click.secho(f" - Created {dst}", fg="green")
def read_toml(file_path: str = "pyproject.toml"):
def read_toml(file_path: str = "pyproject.toml") -> dict[str, Any]:
"""Read the content of a TOML file and return it as a dictionary."""
with open(file_path, "rb") as f:
return tomli.load(f)
def parse_toml(content):
def parse_toml(content: str) -> dict[str, Any]:
if sys.version_info >= (3, 11):
return tomllib.loads(content)
return tomli.loads(content)
@@ -103,7 +105,7 @@ def _get_project_attribute(
)
except Exception as e:
# Handle TOML decode errors for Python 3.11+
if sys.version_info >= (3, 11) and isinstance(e, tomllib.TOMLDecodeError): # type: ignore
if sys.version_info >= (3, 11) and isinstance(e, tomllib.TOMLDecodeError):
console.print(
f"Error: {pyproject_path} is not a valid TOML file.", style="bold red"
)
@@ -126,7 +128,7 @@ def _get_nested_value(data: dict[str, Any], keys: list[str]) -> Any:
return reduce(dict.__getitem__, keys, data)
def fetch_and_json_env_file(env_file_path: str = ".env") -> dict:
def fetch_and_json_env_file(env_file_path: str = ".env") -> dict[str, Any]:
"""Fetch the environment variables from a .env file and return them as a dictionary."""
try:
# Read the .env file
@@ -150,7 +152,7 @@ def fetch_and_json_env_file(env_file_path: str = ".env") -> dict:
return {}
def tree_copy(source, destination):
def tree_copy(source: Path, destination: Path) -> None:
"""Copies the entire directory structure from the source to the destination."""
for item in os.listdir(source):
source_item = os.path.join(source, item)
@@ -161,7 +163,7 @@ def tree_copy(source, destination):
shutil.copy2(source_item, destination_item)
def tree_find_and_replace(directory, find, replace):
def tree_find_and_replace(directory: Path, find: str, replace: str) -> None:
"""Recursively searches through a directory, replacing a target string in
both file contents and filenames with a specified replacement string.
"""
@@ -187,7 +189,7 @@ def tree_find_and_replace(directory, find, replace):
os.rename(old_dirpath, new_dirpath)
def load_env_vars(folder_path):
def load_env_vars(folder_path: Path) -> dict[str, Any]:
"""
Loads environment variables from a .env file in the specified folder path.
@@ -208,7 +210,9 @@ def load_env_vars(folder_path):
return env_vars
def update_env_vars(env_vars, provider, model):
def update_env_vars(
env_vars: dict[str, Any], provider: str, model: str
) -> dict[str, Any] | None:
"""
Updates environment variables with the API key for the selected provider and model.
@@ -220,15 +224,20 @@ def update_env_vars(env_vars, provider, model):
Returns:
- None
"""
api_key_var = ENV_VARS.get(
provider,
[
click.prompt(
f"Enter the environment variable name for your {provider.capitalize()} API key",
type=str,
)
],
)[0]
provider_config = cast(
list[str],
ENV_VARS.get(
provider,
[
click.prompt(
f"Enter the environment variable name for your {provider.capitalize()} API key",
type=str,
)
],
),
)
api_key_var = provider_config[0]
if api_key_var not in env_vars:
try:
@@ -246,7 +255,7 @@ def update_env_vars(env_vars, provider, model):
return env_vars
def write_env_file(folder_path, env_vars):
def write_env_file(folder_path: Path, env_vars: dict[str, Any]) -> None:
"""
Writes environment variables to a .env file in the specified folder.
@@ -342,18 +351,18 @@ def get_crews(crew_path: str = "crew.py", require: bool = False) -> list[Crew]:
return crew_instances
def get_crew_instance(module_attr) -> Crew | None:
def get_crew_instance(module_attr: Any) -> Crew | None:
if (
callable(module_attr)
and hasattr(module_attr, "is_crew_class")
and module_attr.is_crew_class
):
return module_attr().crew()
return cast(Crew, module_attr().crew())
try:
if (ismethod(module_attr) or isfunction(module_attr)) and get_type_hints(
module_attr
).get("return") is Crew:
return module_attr()
return cast(Crew, module_attr())
except Exception:
return None
@@ -362,7 +371,7 @@ def get_crew_instance(module_attr) -> Crew | None:
return None
def fetch_crews(module_attr) -> list[Crew]:
def fetch_crews(module_attr: Any) -> list[Crew]:
crew_instances: list[Crew] = []
if crew_instance := get_crew_instance(module_attr):
@@ -377,7 +386,7 @@ def fetch_crews(module_attr) -> list[Crew]:
return crew_instances
def is_valid_tool(obj):
def is_valid_tool(obj: Any) -> bool:
from crewai.tools.base_tool import Tool
if isclass(obj):
@@ -389,7 +398,7 @@ def is_valid_tool(obj):
return isinstance(obj, Tool)
def extract_available_exports(dir_path: str = "src"):
def extract_available_exports(dir_path: str = "src") -> list[dict[str, Any]]:
"""
Extract available tool classes from the project's __init__.py files.
Only includes classes that inherit from BaseTool or functions decorated with @tool.
@@ -419,7 +428,9 @@ def extract_available_exports(dir_path: str = "src"):
raise SystemExit(1) from e
def build_env_with_tool_repository_credentials(repository_handle: str):
def build_env_with_tool_repository_credentials(
repository_handle: str,
) -> dict[str, Any]:
repository_handle = repository_handle.upper().replace("-", "_")
settings = Settings()
@@ -472,7 +483,7 @@ def _load_tools_from_init(init_file: Path) -> list[dict[str, Any]]:
sys.modules.pop("temp_module", None)
def _print_no_tools_warning():
def _print_no_tools_warning() -> None:
"""
Display warning and usage instructions if no tools were found.
"""

View File

@@ -27,6 +27,8 @@ from pydantic import (
model_validator,
)
from pydantic_core import PydanticCustomError
from rich.console import Console
from rich.panel import Panel
from typing_extensions import Self
from crewai.agent import Agent
@@ -39,8 +41,8 @@ from crewai.events.listeners.tracing.trace_listener import (
TraceCollectionListener,
)
from crewai.events.listeners.tracing.utils import (
is_tracing_enabled,
should_auto_collect_first_time_traces,
set_tracing_enabled,
should_enable_tracing,
)
from crewai.events.types.crew_events import (
CrewKickoffCompletedEvent,
@@ -280,8 +282,8 @@ class Crew(FlowTrackable, BaseModel):
description="Metrics for the LLM usage during all tasks execution.",
)
tracing: bool | None = Field(
default=False,
description="Whether to enable tracing for the crew.",
default=None,
description="Whether to enable tracing for the crew. True=always enable, False=always disable, None=check environment/user settings.",
)
@field_validator("id", mode="before")
@@ -311,17 +313,16 @@ class Crew(FlowTrackable, BaseModel):
@model_validator(mode="after")
def set_private_attrs(self) -> Crew:
"""set private attributes."""
self._cache_handler = CacheHandler()
event_listener = EventListener() # type: ignore[no-untyped-call]
if (
is_tracing_enabled()
or self.tracing
or should_auto_collect_first_time_traces()
):
trace_listener = TraceCollectionListener()
trace_listener.setup_listeners(crewai_event_bus)
# Determine and set tracing state once for this execution
tracing_enabled = should_enable_tracing(override=self.tracing)
set_tracing_enabled(tracing_enabled)
# Always setup trace listener - actual execution control is via contextvar
trace_listener = TraceCollectionListener()
trace_listener.setup_listeners(crewai_event_bus)
event_listener.verbose = self.verbose
event_listener.formatter.verbose = self.verbose
self._logger = Logger(verbose=self.verbose)
@@ -809,6 +810,7 @@ class Crew(FlowTrackable, BaseModel):
"json_dict": output.json_dict,
"output_format": output.output_format,
"agent": output.agent,
"messages": output.messages,
},
"task_index": task_index,
"inputs": inputs,
@@ -1170,6 +1172,10 @@ class Crew(FlowTrackable, BaseModel):
total_tokens=self.token_usage.total_tokens,
),
)
# Finalization is handled by trace listener (always initialized)
# The batch manager checks contextvar to determine if tracing is enabled
return CrewOutput(
raw=final_task_output.raw,
pydantic=final_task_output.pydantic,
@@ -1236,6 +1242,7 @@ class Crew(FlowTrackable, BaseModel):
pydantic=stored_output["pydantic"],
json_dict=stored_output["json_dict"],
output_format=stored_output["output_format"],
messages=stored_output.get("messages", []),
)
self.tasks[i].output = task_output
@@ -1649,3 +1656,32 @@ class Crew(FlowTrackable, BaseModel):
and able_to_inject
):
self.tasks[0].allow_crewai_trigger_context = True
def _show_tracing_disabled_message(self) -> None:
"""Show a message when tracing is disabled."""
from crewai.events.listeners.tracing.utils import has_user_declined_tracing
console = Console()
if has_user_declined_tracing():
message = """Info: Tracing is disabled.
To enable tracing, do any one of these:
• Set tracing=True in your Crew code
• Set CREWAI_TRACING_ENABLED=true in your project's .env file
• Run: crewai traces enable"""
else:
message = """Info: Tracing is disabled.
To enable tracing, do any one of these:
• Set tracing=True in your Crew code
• Set CREWAI_TRACING_ENABLED=true in your project's .env file
• Run: crewai traces enable"""
panel = Panel(
message,
title="Tracing Status",
border_style="blue",
padding=(1, 2),
)
console.print(panel)

View File

@@ -16,7 +16,6 @@ from crewai.events.base_event_listener import BaseEventListener
from crewai.events.depends import Depends
from crewai.events.event_bus import crewai_event_bus
from crewai.events.handler_graph import CircularDependencyError
from crewai.events.types.crew_events import (
CrewKickoffCompletedEvent,
CrewKickoffFailedEvent,
@@ -61,6 +60,14 @@ from crewai.events.types.logging_events import (
AgentLogsExecutionEvent,
AgentLogsStartedEvent,
)
from crewai.events.types.mcp_events import (
MCPConnectionCompletedEvent,
MCPConnectionFailedEvent,
MCPConnectionStartedEvent,
MCPToolExecutionCompletedEvent,
MCPToolExecutionFailedEvent,
MCPToolExecutionStartedEvent,
)
from crewai.events.types.memory_events import (
MemoryQueryCompletedEvent,
MemoryQueryFailedEvent,
@@ -153,6 +160,12 @@ __all__ = [
"LiteAgentExecutionCompletedEvent",
"LiteAgentExecutionErrorEvent",
"LiteAgentExecutionStartedEvent",
"MCPConnectionCompletedEvent",
"MCPConnectionFailedEvent",
"MCPConnectionStartedEvent",
"MCPToolExecutionCompletedEvent",
"MCPToolExecutionFailedEvent",
"MCPToolExecutionStartedEvent",
"MemoryQueryCompletedEvent",
"MemoryQueryFailedEvent",
"MemoryQueryStartedEvent",

View File

@@ -10,6 +10,7 @@ import atexit
from collections.abc import Callable, Generator
from concurrent.futures import Future, ThreadPoolExecutor
from contextlib import contextmanager
import contextvars
import threading
from typing import Any, Final, ParamSpec, TypeVar
@@ -288,8 +289,9 @@ class CrewAIEventsBus:
if event_type is LLMStreamChunkEvent:
self._call_handlers(source, event, level_sync)
else:
ctx = contextvars.copy_context()
future = self._sync_executor.submit(
self._call_handlers, source, event, level_sync
ctx.run, self._call_handlers, source, event, level_sync
)
await asyncio.get_running_loop().run_in_executor(
None, future.result
@@ -346,8 +348,9 @@ class CrewAIEventsBus:
if event_type is LLMStreamChunkEvent:
self._call_handlers(source, event, sync_handlers)
else:
ctx = contextvars.copy_context()
sync_future = self._sync_executor.submit(
self._call_handlers, source, event, sync_handlers
ctx.run, self._call_handlers, source, event, sync_handlers
)
if not async_handlers:
return sync_future

View File

@@ -65,6 +65,14 @@ from crewai.events.types.logging_events import (
AgentLogsExecutionEvent,
AgentLogsStartedEvent,
)
from crewai.events.types.mcp_events import (
MCPConnectionCompletedEvent,
MCPConnectionFailedEvent,
MCPConnectionStartedEvent,
MCPToolExecutionCompletedEvent,
MCPToolExecutionFailedEvent,
MCPToolExecutionStartedEvent,
)
from crewai.events.types.reasoning_events import (
AgentReasoningCompletedEvent,
AgentReasoningFailedEvent,
@@ -615,5 +623,67 @@ class EventListener(BaseEventListener):
event.total_turns,
)
# ----------- MCP EVENTS -----------
@crewai_event_bus.on(MCPConnectionStartedEvent)
def on_mcp_connection_started(source, event: MCPConnectionStartedEvent):
self.formatter.handle_mcp_connection_started(
event.server_name,
event.server_url,
event.transport_type,
event.is_reconnect,
event.connect_timeout,
)
@crewai_event_bus.on(MCPConnectionCompletedEvent)
def on_mcp_connection_completed(source, event: MCPConnectionCompletedEvent):
self.formatter.handle_mcp_connection_completed(
event.server_name,
event.server_url,
event.transport_type,
event.connection_duration_ms,
event.is_reconnect,
)
@crewai_event_bus.on(MCPConnectionFailedEvent)
def on_mcp_connection_failed(source, event: MCPConnectionFailedEvent):
self.formatter.handle_mcp_connection_failed(
event.server_name,
event.server_url,
event.transport_type,
event.error,
event.error_type,
)
@crewai_event_bus.on(MCPToolExecutionStartedEvent)
def on_mcp_tool_execution_started(source, event: MCPToolExecutionStartedEvent):
self.formatter.handle_mcp_tool_execution_started(
event.server_name,
event.tool_name,
event.tool_args,
)
@crewai_event_bus.on(MCPToolExecutionCompletedEvent)
def on_mcp_tool_execution_completed(
source, event: MCPToolExecutionCompletedEvent
):
self.formatter.handle_mcp_tool_execution_completed(
event.server_name,
event.tool_name,
event.tool_args,
event.result,
event.execution_duration_ms,
)
@crewai_event_bus.on(MCPToolExecutionFailedEvent)
def on_mcp_tool_execution_failed(source, event: MCPToolExecutionFailedEvent):
self.formatter.handle_mcp_tool_execution_failed(
event.server_name,
event.tool_name,
event.tool_args,
event.error,
event.error_type,
)
event_listener = EventListener()

View File

@@ -40,6 +40,14 @@ from crewai.events.types.llm_guardrail_events import (
LLMGuardrailCompletedEvent,
LLMGuardrailStartedEvent,
)
from crewai.events.types.mcp_events import (
MCPConnectionCompletedEvent,
MCPConnectionFailedEvent,
MCPConnectionStartedEvent,
MCPToolExecutionCompletedEvent,
MCPToolExecutionFailedEvent,
MCPToolExecutionStartedEvent,
)
from crewai.events.types.memory_events import (
MemoryQueryCompletedEvent,
MemoryQueryFailedEvent,
@@ -115,4 +123,10 @@ EventTypes = (
| MemoryQueryFailedEvent
| MemoryRetrievalStartedEvent
| MemoryRetrievalCompletedEvent
| MCPConnectionStartedEvent
| MCPConnectionCompletedEvent
| MCPConnectionFailedEvent
| MCPToolExecutionStartedEvent
| MCPToolExecutionCompletedEvent
| MCPToolExecutionFailedEvent
)

View File

@@ -1,5 +1,4 @@
import logging
from pathlib import Path
import uuid
import webbrowser
@@ -17,47 +16,6 @@ from crewai.events.listeners.tracing.utils import (
logger = logging.getLogger(__name__)
def _update_or_create_env_file():
"""Update or create .env file with CREWAI_TRACING_ENABLED=true."""
env_path = Path(".env")
env_content = ""
variable_name = "CREWAI_TRACING_ENABLED"
variable_value = "true"
# Read existing content if file exists
if env_path.exists():
with open(env_path, "r") as f:
env_content = f.read()
# Check if CREWAI_TRACING_ENABLED is already set
lines = env_content.splitlines()
variable_exists = False
updated_lines = []
for line in lines:
if line.strip().startswith(f"{variable_name}="):
# Update existing variable
updated_lines.append(f"{variable_name}={variable_value}")
variable_exists = True
else:
updated_lines.append(line)
# Add variable if it doesn't exist
if not variable_exists:
if updated_lines and not updated_lines[-1].strip():
# If last line is empty, replace it
updated_lines[-1] = f"{variable_name}={variable_value}"
else:
# Add new line and then the variable
updated_lines.append(f"{variable_name}={variable_value}")
# Write updated content
with open(env_path, "w") as f:
f.write("\n".join(updated_lines))
if updated_lines: # Add final newline if there's content
f.write("\n")
class FirstTimeTraceHandler:
"""Handles the first-time user trace collection and display flow."""
@@ -96,20 +54,16 @@ class FirstTimeTraceHandler:
if user_wants_traces:
self._initialize_backend_and_send_events()
# Enable tracing for future runs by updating .env file
try:
_update_or_create_env_file()
except Exception: # noqa: S110
pass
if self.ephemeral_url:
self._display_ephemeral_trace_link()
else:
self._show_tracing_declined_message()
mark_first_execution_completed()
mark_first_execution_completed(user_consented=user_wants_traces)
except Exception as e:
self._gracefully_fail(f"Error in trace handling: {e}")
mark_first_execution_completed()
mark_first_execution_completed(user_consented=False)
def _initialize_backend_and_send_events(self):
"""Initialize backend batch and send collected events."""
@@ -182,8 +136,13 @@ This trace shows:
• Tool usage and results
• LLM calls and responses
✅ Tracing has been enabled for future runs! (CREWAI_TRACING_ENABLED=true added to .env)
You can also add tracing=True to your Crew(tracing=True) / Flow(tracing=True) for more control.
✅ Tracing has been enabled for future runs!
Your preference has been saved. Future Crew/Flow executions will automatically collect traces.
To disable tracing later, do any one of these:
• Set tracing=False in your Crew/Flow code
• Set CREWAI_TRACING_ENABLED=false in your project's .env file
• Run: crewai traces disable
📝 Note: This link will expire in 24 hours.
""".strip()
@@ -199,6 +158,32 @@ You can also add tracing=True to your Crew(tracing=True) / Flow(tracing=True) fo
console.print(panel)
console.print()
def _show_tracing_declined_message(self):
"""Show message when user declines tracing."""
console = Console()
panel_content = """
Info: Tracing has been disabled.
Your preference has been saved. Future Crew/Flow executions will not collect traces.
To enable tracing later, do any one of these:
• Set tracing=True in your Crew/Flow code
• Set CREWAI_TRACING_ENABLED=true in your project's .env file
• Run: crewai traces enable
""".strip()
panel = Panel(
panel_content,
title="Tracing Preference Saved",
border_style="blue",
padding=(1, 2),
)
console.print("\n")
console.print(panel)
console.print()
def _gracefully_fail(self, error_message: str):
"""Handle errors gracefully without disrupting user experience."""
console = Console()
@@ -218,8 +203,14 @@ Unfortunately, we couldn't upload them to the server right now, but here's what
• Execution duration: {self.batch_manager.calculate_duration("execution")}ms
• Batch ID: {self.batch_manager.trace_batch_id}
Tracing has been enabled for future runs! (CREWAI_TRACING_ENABLED=true added to .env)
Tracing has been enabled for future runs!
Your preference has been saved. Future Crew/Flow executions will automatically collect traces.
The traces include agent decisions, task execution, and tool usage.
To disable tracing later, do any one of these:
• Set tracing=False in your Crew/Flow code
• Set CREWAI_TRACING_ENABLED=false in your project's .env file
• Run: crewai traces disable
""".strip()
panel = Panel(

View File

@@ -12,7 +12,10 @@ from crewai.cli.authentication.token import AuthError, get_auth_token
from crewai.cli.plus_api import PlusAPI
from crewai.cli.version import get_crewai_version
from crewai.events.listeners.tracing.types import TraceEvent
from crewai.events.listeners.tracing.utils import should_auto_collect_first_time_traces
from crewai.events.listeners.tracing.utils import (
is_tracing_enabled_in_context,
should_auto_collect_first_time_traces,
)
from crewai.utilities.constants import CREWAI_BASE_URL
@@ -107,6 +110,9 @@ class TraceBatchManager:
):
"""Send batch initialization to backend"""
if not is_tracing_enabled_in_context():
return
if not self.plus_api or not self.current_batch:
return
@@ -243,7 +249,8 @@ class TraceBatchManager:
def finalize_batch(self) -> TraceBatch | None:
"""Finalize batch and return it for sending"""
if not self.current_batch:
if not self.current_batch or not is_tracing_enabled_in_context():
return None
all_handlers_completed = self.wait_for_pending_events()

View File

@@ -10,13 +10,14 @@ from crewai.cli.authentication.token import AuthError, get_auth_token
from crewai.cli.version import get_crewai_version
from crewai.events.base_event_listener import BaseEventListener
from crewai.events.event_bus import CrewAIEventsBus
from crewai.events.utils.console_formatter import ConsoleFormatter
from crewai.events.listeners.tracing.first_time_trace_handler import (
FirstTimeTraceHandler,
)
from crewai.events.listeners.tracing.trace_batch_manager import TraceBatchManager
from crewai.events.listeners.tracing.types import TraceEvent
from crewai.events.listeners.tracing.utils import safe_serialize_to_dict
from crewai.events.listeners.tracing.utils import (
safe_serialize_to_dict,
)
from crewai.events.types.agent_events import (
AgentExecutionCompletedEvent,
AgentExecutionErrorEvent,
@@ -80,6 +81,7 @@ from crewai.events.types.tool_usage_events import (
ToolUsageFinishedEvent,
ToolUsageStartedEvent,
)
from crewai.events.utils.console_formatter import ConsoleFormatter
class TraceCollectionListener(BaseEventListener):
@@ -627,3 +629,35 @@ class TraceCollectionListener(BaseEventListener):
"event": safe_serialize_to_dict(event),
"source": source,
}
def _show_tracing_disabled_message(self) -> None:
"""Show a message when tracing is disabled."""
from rich.console import Console
from rich.panel import Panel
from crewai.events.listeners.tracing.utils import has_user_declined_tracing
console = Console()
if has_user_declined_tracing():
message = """Info: Tracing is disabled.
To enable tracing, do any one of these:
• Set tracing=True in your Crew/Flow code
• Set CREWAI_TRACING_ENABLED=true in your project's .env file
• Run: crewai traces enable"""
else:
message = """Info: Tracing is disabled.
To enable tracing, do any one of these:
• Set tracing=True in your Crew/Flow code
• Set CREWAI_TRACING_ENABLED=true in your project's .env file
• Run: crewai traces enable"""
panel = Panel(
message,
title="Tracing Status",
border_style="blue",
padding=(1, 2),
)
console.print(panel)

View File

@@ -1,3 +1,4 @@
from contextvars import ContextVar, Token
from datetime import datetime
import getpass
import hashlib
@@ -8,7 +9,7 @@ from pathlib import Path
import platform
import re
import subprocess
from typing import Any
from typing import Any, cast
import uuid
import click
@@ -23,7 +24,120 @@ from crewai.utilities.serialization import to_serializable
logger = logging.getLogger(__name__)
_tracing_enabled: ContextVar[bool | None] = ContextVar("_tracing_enabled", default=None)
def should_enable_tracing(*, override: bool | None = None) -> bool:
"""Determine if tracing should be enabled.
This is the single source of truth for tracing enablement.
Priority order:
1. Explicit override (e.g., Crew.tracing=True/False)
2. Environment variable CREWAI_TRACING_ENABLED
3. User consent from user_data
Args:
override: Explicit override for tracing (True=always enable, False=always disable, None=check other settings)
Returns:
True if tracing should be enabled, False otherwise.
"""
if override is True:
return True
if override is False:
return False
env_value = os.getenv("CREWAI_TRACING_ENABLED", "").lower()
if env_value in ("true", "1"):
return True
data = _load_user_data()
if data.get("trace_consent", False) is not False:
return True
return False
def set_tracing_enabled(enabled: bool) -> object:
"""Set tracing enabled state for current execution context.
Args:
enabled: Whether tracing should be enabled
Returns:
A token that can be used with reset_tracing_enabled to restore previous value.
"""
return _tracing_enabled.set(enabled)
def reset_tracing_enabled(token: Token[bool | None]) -> None:
"""Reset tracing enabled state to previous value.
Args:
token: Token returned from set_tracing_enabled
"""
_tracing_enabled.reset(token)
def is_tracing_enabled_in_context() -> bool:
"""Check if tracing is enabled in current execution context.
Returns:
True if tracing is enabled in context, False otherwise.
Returns False if context has not been set.
"""
enabled = _tracing_enabled.get()
return enabled if enabled is not None else False
def _user_data_file() -> Path:
base = Path(db_storage_path())
base.mkdir(parents=True, exist_ok=True)
return base / ".crewai_user.json"
def _load_user_data() -> dict[str, Any]:
p = _user_data_file()
if p.exists():
try:
return cast(dict[str, Any], json.loads(p.read_text()))
except (json.JSONDecodeError, OSError, PermissionError) as e:
logger.warning(f"Failed to load user data: {e}")
return {}
def _save_user_data(data: dict[str, Any]) -> None:
try:
p = _user_data_file()
p.write_text(json.dumps(data, indent=2))
except (OSError, PermissionError) as e:
logger.warning(f"Failed to save user data: {e}")
def has_user_declined_tracing() -> bool:
"""Check if user has explicitly declined trace collection.
Returns:
True if user previously declined tracing, False otherwise.
"""
data = _load_user_data()
if data.get("first_execution_done", False):
return data.get("trace_consent", False) is False
return False
def is_tracing_enabled() -> bool:
"""Check if tracing should be enabled.
Returns:
True if tracing is enabled and not disabled, False otherwise.
"""
# If user has explicitly declined tracing, never enable it
if has_user_declined_tracing():
return False
return os.getenv("CREWAI_TRACING_ENABLED", "false").lower() == "true"
@@ -213,36 +327,12 @@ def _get_generic_system_id() -> str | None:
return None
def _user_data_file() -> Path:
base = Path(db_storage_path())
base.mkdir(parents=True, exist_ok=True)
return base / ".crewai_user.json"
def _load_user_data() -> dict:
p = _user_data_file()
if p.exists():
try:
return json.loads(p.read_text())
except (json.JSONDecodeError, OSError, PermissionError) as e:
logger.warning(f"Failed to load user data: {e}")
return {}
def _save_user_data(data: dict) -> None:
try:
p = _user_data_file()
p.write_text(json.dumps(data, indent=2))
except (OSError, PermissionError) as e:
logger.warning(f"Failed to save user data: {e}")
def get_user_id() -> str:
"""Stable, anonymized user identifier with caching."""
data = _load_user_data()
if "user_id" in data:
return data["user_id"]
return cast(str, data["user_id"])
try:
username = getpass.getuser()
@@ -263,8 +353,12 @@ def is_first_execution() -> bool:
return not data.get("first_execution_done", False)
def mark_first_execution_done() -> None:
"""Mark that the first execution has been completed."""
def mark_first_execution_done(user_consented: bool = False) -> None:
"""Mark that the first execution has been completed.
Args:
user_consented: Whether the user consented to trace collection.
"""
data = _load_user_data()
if data.get("first_execution_done", False):
return
@@ -275,12 +369,13 @@ def mark_first_execution_done() -> None:
"first_execution_at": datetime.now().timestamp(),
"user_id": get_user_id(),
"machine_id": _get_machine_id(),
"trace_consent": user_consented,
}
)
_save_user_data(data)
def safe_serialize_to_dict(obj, exclude: set[str] | None = None) -> dict[str, Any]:
def safe_serialize_to_dict(obj: Any, exclude: set[str] | None = None) -> dict[str, Any]:
"""Safely serialize an object to a dictionary for event data."""
try:
serialized = to_serializable(obj, exclude)
@@ -291,7 +386,9 @@ def safe_serialize_to_dict(obj, exclude: set[str] | None = None) -> dict[str, An
return {"serialization_error": str(e), "object_type": type(obj).__name__}
def truncate_messages(messages, max_content_length=500, max_messages=5):
def truncate_messages(
messages: list[dict[str, Any]], max_content_length: int = 500, max_messages: int = 5
) -> list[dict[str, Any]]:
"""Truncate message content and limit number of messages"""
if not messages or not isinstance(messages, list):
return messages
@@ -308,9 +405,22 @@ def truncate_messages(messages, max_content_length=500, max_messages=5):
def should_auto_collect_first_time_traces() -> bool:
"""True if we should auto-collect traces for first-time user."""
"""True if we should auto-collect traces for first-time user.
Returns:
True if first-time user AND telemetry not disabled AND tracing not explicitly enabled, False otherwise.
"""
if _is_test_environment():
return False
# If user has previously declined, never auto-collect
if has_user_declined_tracing():
return False
if is_tracing_enabled_in_context():
return False
return is_first_execution()
@@ -355,7 +465,7 @@ def prompt_user_for_trace_viewing(timeout_seconds: int = 20) -> bool:
result = [False]
def get_input():
def get_input() -> None:
try:
response = input().strip().lower()
result[0] = response in ["y", "yes"]
@@ -377,6 +487,10 @@ def prompt_user_for_trace_viewing(timeout_seconds: int = 20) -> bool:
return False
def mark_first_execution_completed() -> None:
"""Mark first execution as completed (called after trace prompt)."""
mark_first_execution_done()
def mark_first_execution_completed(user_consented: bool = False) -> None:
"""Mark first execution as completed (called after trace prompt).
Args:
user_consented: Whether the user consented to trace collection.
"""
mark_first_execution_done(user_consented=user_consented)

View File

@@ -0,0 +1,85 @@
from datetime import datetime
from typing import Any
from crewai.events.base_events import BaseEvent
class MCPEvent(BaseEvent):
"""Base event for MCP operations."""
server_name: str
server_url: str | None = None
transport_type: str | None = None # "stdio", "http", "sse"
agent_id: str | None = None
agent_role: str | None = None
from_agent: Any | None = None
from_task: Any | None = None
def __init__(self, **data):
super().__init__(**data)
self._set_agent_params(data)
self._set_task_params(data)
class MCPConnectionStartedEvent(MCPEvent):
"""Event emitted when starting to connect to an MCP server."""
type: str = "mcp_connection_started"
connect_timeout: int | None = None
is_reconnect: bool = (
False # True if this is a reconnection, False for first connection
)
class MCPConnectionCompletedEvent(MCPEvent):
"""Event emitted when successfully connected to an MCP server."""
type: str = "mcp_connection_completed"
started_at: datetime | None = None
completed_at: datetime | None = None
connection_duration_ms: float | None = None
is_reconnect: bool = (
False # True if this was a reconnection, False for first connection
)
class MCPConnectionFailedEvent(MCPEvent):
"""Event emitted when connection to an MCP server fails."""
type: str = "mcp_connection_failed"
error: str
error_type: str | None = None # "timeout", "authentication", "network", etc.
started_at: datetime | None = None
failed_at: datetime | None = None
class MCPToolExecutionStartedEvent(MCPEvent):
"""Event emitted when starting to execute an MCP tool."""
type: str = "mcp_tool_execution_started"
tool_name: str
tool_args: dict[str, Any] | None = None
class MCPToolExecutionCompletedEvent(MCPEvent):
"""Event emitted when MCP tool execution completes."""
type: str = "mcp_tool_execution_completed"
tool_name: str
tool_args: dict[str, Any] | None = None
result: Any | None = None
started_at: datetime | None = None
completed_at: datetime | None = None
execution_duration_ms: float | None = None
class MCPToolExecutionFailedEvent(MCPEvent):
"""Event emitted when MCP tool execution fails."""
type: str = "mcp_tool_execution_failed"
tool_name: str
tool_args: dict[str, Any] | None = None
error: str
error_type: str | None = None # "timeout", "validation", "server_error", etc.
started_at: datetime | None = None
failed_at: datetime | None = None

View File

@@ -1,3 +1,4 @@
import threading
from typing import Any, ClassVar
from rich.console import Console
@@ -27,6 +28,7 @@ class ConsoleFormatter:
_pending_a2a_turn_number: int | None = None
_a2a_turn_branches: ClassVar[dict[int, Tree]] = {}
_current_a2a_agent_name: str | None = None
crew_completion_printed: ClassVar[threading.Event] = threading.Event()
def __init__(self, verbose: bool = False):
self.console = Console(width=None)
@@ -47,13 +49,44 @@ class ConsoleFormatter:
padding=(1, 2),
)
def _show_tracing_disabled_message_if_needed(self) -> None:
"""Show tracing disabled message if tracing is not enabled."""
from crewai.events.listeners.tracing.utils import (
has_user_declined_tracing,
is_tracing_enabled_in_context,
)
if not is_tracing_enabled_in_context():
if has_user_declined_tracing():
message = """Info: Tracing is disabled.
To enable tracing, do any one of these:
• Set tracing=True in your Crew/Flow code
• Set CREWAI_TRACING_ENABLED=true in your project's .env file
• Run: crewai traces enable"""
else:
message = """Info: Tracing is disabled.
To enable tracing, do any one of these:
• Set tracing=True in your Crew/Flow code
• Set CREWAI_TRACING_ENABLED=true in your project's .env file
• Run: crewai traces enable"""
panel = Panel(
message,
title="Tracing Status",
border_style="blue",
padding=(1, 2),
)
self.console.print(panel)
def create_status_content(
self,
title: str,
name: str,
status_style: str = "blue",
tool_args: dict[str, Any] | str = "",
**fields,
**fields: Any,
) -> Text:
"""Create standardized status content with consistent formatting."""
content = Text()
@@ -92,7 +125,7 @@ class ConsoleFormatter:
"""Add a node to the tree with consistent styling."""
return parent.add(Text(text, style=style))
def print(self, *args, **kwargs) -> None:
def print(self, *args: Any, **kwargs: Any) -> None:
"""Custom print that replaces consecutive Tree renders.
* If the argument is a single ``Tree`` instance, we either start a
@@ -208,11 +241,20 @@ class ConsoleFormatter:
self.print_panel(content, title, style)
if status in ["completed", "failed"]:
self.crew_completion_printed.set()
# Show tracing disabled message after crew completion
self._show_tracing_disabled_message_if_needed()
def create_crew_tree(self, crew_name: str, source_id: str) -> Tree | None:
"""Create and initialize a new crew tree with initial status."""
if not self.verbose:
return None
# Reset the crew completion event for this new crew execution
ConsoleFormatter.crew_completion_printed.clear()
tree = Tree(
Text("🚀 Crew: ", style="cyan bold") + Text(crew_name, style="cyan")
)
@@ -497,7 +539,7 @@ class ConsoleFormatter:
return method_branch
def get_llm_tree(self, tool_name: str):
def get_llm_tree(self, tool_name: str) -> Tree:
text = Text()
text.append(f"🔧 Using {tool_name} from LLM available_function", style="yellow")
@@ -512,7 +554,7 @@ class ConsoleFormatter:
self,
tool_name: str,
tool_args: dict[str, Any] | str,
):
) -> None:
# Create status content for the tool usage
content = self.create_status_content(
"Tool Usage Started", tool_name, Status="In Progress", tool_args=tool_args
@@ -528,7 +570,7 @@ class ConsoleFormatter:
def handle_llm_tool_usage_finished(
self,
tool_name: str,
):
) -> None:
tree = self.get_llm_tree(tool_name)
self.add_tree_node(tree, "✅ Tool Usage Completed", "green")
self.print(tree)
@@ -538,7 +580,7 @@ class ConsoleFormatter:
self,
tool_name: str,
error: str,
):
) -> None:
tree = self.get_llm_tree(tool_name)
self.add_tree_node(tree, "❌ Tool Usage Failed", "red")
self.print(tree)
@@ -1558,7 +1600,7 @@ class ConsoleFormatter:
if branch_to_use is None and tree_to_use is not None:
branch_to_use = tree_to_use
def add_panel():
def add_panel() -> None:
memory_text = str(memory_content)
if len(memory_text) > 500:
memory_text = memory_text[:497] + "..."
@@ -2248,3 +2290,203 @@ class ConsoleFormatter:
self.current_a2a_conversation_branch = None
self.current_a2a_turn_count = 0
# ----------- MCP EVENTS -----------
def handle_mcp_connection_started(
self,
server_name: str,
server_url: str | None = None,
transport_type: str | None = None,
is_reconnect: bool = False,
connect_timeout: int | None = None,
) -> None:
"""Handle MCP connection started event."""
if not self.verbose:
return
content = Text()
reconnect_text = " (Reconnecting)" if is_reconnect else ""
content.append(f"MCP Connection Started{reconnect_text}\n\n", style="cyan bold")
content.append("Server: ", style="white")
content.append(f"{server_name}\n", style="cyan")
if server_url:
content.append("URL: ", style="white")
content.append(f"{server_url}\n", style="cyan dim")
if transport_type:
content.append("Transport: ", style="white")
content.append(f"{transport_type}\n", style="cyan")
if connect_timeout:
content.append("Timeout: ", style="white")
content.append(f"{connect_timeout}s\n", style="cyan")
panel = self.create_panel(content, "🔌 MCP Connection", "cyan")
self.print(panel)
self.print()
def handle_mcp_connection_completed(
self,
server_name: str,
server_url: str | None = None,
transport_type: str | None = None,
connection_duration_ms: float | None = None,
is_reconnect: bool = False,
) -> None:
"""Handle MCP connection completed event."""
if not self.verbose:
return
content = Text()
reconnect_text = " (Reconnected)" if is_reconnect else ""
content.append(
f"MCP Connection Completed{reconnect_text}\n\n", style="green bold"
)
content.append("Server: ", style="white")
content.append(f"{server_name}\n", style="green")
if server_url:
content.append("URL: ", style="white")
content.append(f"{server_url}\n", style="green dim")
if transport_type:
content.append("Transport: ", style="white")
content.append(f"{transport_type}\n", style="green")
if connection_duration_ms is not None:
content.append("Duration: ", style="white")
content.append(f"{connection_duration_ms:.2f}ms\n", style="green")
panel = self.create_panel(content, "✅ MCP Connected", "green")
self.print(panel)
self.print()
def handle_mcp_connection_failed(
self,
server_name: str,
server_url: str | None = None,
transport_type: str | None = None,
error: str = "",
error_type: str | None = None,
) -> None:
"""Handle MCP connection failed event."""
if not self.verbose:
return
content = Text()
content.append("MCP Connection Failed\n\n", style="red bold")
content.append("Server: ", style="white")
content.append(f"{server_name}\n", style="red")
if server_url:
content.append("URL: ", style="white")
content.append(f"{server_url}\n", style="red dim")
if transport_type:
content.append("Transport: ", style="white")
content.append(f"{transport_type}\n", style="red")
if error_type:
content.append("Error Type: ", style="white")
content.append(f"{error_type}\n", style="red")
if error:
content.append("\nError: ", style="white bold")
error_preview = error[:500] + "..." if len(error) > 500 else error
content.append(f"{error_preview}\n", style="red")
panel = self.create_panel(content, "❌ MCP Connection Failed", "red")
self.print(panel)
self.print()
def handle_mcp_tool_execution_started(
self,
server_name: str,
tool_name: str,
tool_args: dict[str, Any] | None = None,
) -> None:
"""Handle MCP tool execution started event."""
if not self.verbose:
return
content = self.create_status_content(
"MCP Tool Execution Started",
tool_name,
"yellow",
tool_args=tool_args or {},
Server=server_name,
)
panel = self.create_panel(content, "🔧 MCP Tool", "yellow")
self.print(panel)
self.print()
def handle_mcp_tool_execution_completed(
self,
server_name: str,
tool_name: str,
tool_args: dict[str, Any] | None = None,
result: Any | None = None,
execution_duration_ms: float | None = None,
) -> None:
"""Handle MCP tool execution completed event."""
if not self.verbose:
return
content = self.create_status_content(
"MCP Tool Execution Completed",
tool_name,
"green",
tool_args=tool_args or {},
Server=server_name,
)
if execution_duration_ms is not None:
content.append("Duration: ", style="white")
content.append(f"{execution_duration_ms:.2f}ms\n", style="green")
if result is not None:
result_str = str(result)
if len(result_str) > 500:
result_str = result_str[:497] + "..."
content.append("\nResult: ", style="white bold")
content.append(f"{result_str}\n", style="green")
panel = self.create_panel(content, "✅ MCP Tool Completed", "green")
self.print(panel)
self.print()
def handle_mcp_tool_execution_failed(
self,
server_name: str,
tool_name: str,
tool_args: dict[str, Any] | None = None,
error: str = "",
error_type: str | None = None,
) -> None:
"""Handle MCP tool execution failed event."""
if not self.verbose:
return
content = self.create_status_content(
"MCP Tool Execution Failed",
tool_name,
"red",
tool_args=tool_args or {},
Server=server_name,
)
if error_type:
content.append("Error Type: ", style="white")
content.append(f"{error_type}\n", style="red")
if error:
content.append("\nError: ", style="white bold")
error_preview = error[:500] + "..." if len(error) > 500 else error
content.append(f"{error_preview}\n", style="red")
panel = self.create_panel(content, "❌ MCP Tool Failed", "red")
self.print(panel)
self.print()

View File

@@ -26,14 +26,17 @@ from uuid import uuid4
from opentelemetry import baggage
from opentelemetry.context import attach, detach
from pydantic import BaseModel, Field, ValidationError
from rich.console import Console
from rich.panel import Panel
from crewai.events.event_bus import crewai_event_bus
from crewai.events.listeners.tracing.trace_listener import (
TraceCollectionListener,
)
from crewai.events.listeners.tracing.utils import (
is_tracing_enabled,
should_auto_collect_first_time_traces,
has_user_declined_tracing,
set_tracing_enabled,
should_enable_tracing,
)
from crewai.events.types.flow_events import (
FlowCreatedEvent,
@@ -428,6 +431,8 @@ class FlowMeta(type):
possible_returns = get_possible_return_constants(attr_value)
if possible_returns:
router_paths[attr_name] = possible_returns
else:
router_paths[attr_name] = []
cls._start_methods = start_methods # type: ignore[attr-defined]
cls._listeners = listeners # type: ignore[attr-defined]
@@ -450,7 +455,7 @@ class Flow(Generic[T], metaclass=FlowMeta):
_router_paths: ClassVar[dict[FlowMethodName, list[FlowMethodName]]] = {}
initial_state: type[T] | T | None = None
name: str | None = None
tracing: bool | None = False
tracing: bool | None = None
def __class_getitem__(cls: type[Flow[T]], item: type[T]) -> type[Flow[T]]:
class _FlowGeneric(cls): # type: ignore
@@ -462,13 +467,14 @@ class Flow(Generic[T], metaclass=FlowMeta):
def __init__(
self,
persistence: FlowPersistence | None = None,
tracing: bool | None = False,
tracing: bool | None = None,
**kwargs: Any,
) -> None:
"""Initialize a new Flow instance.
Args:
persistence: Optional persistence backend for storing flow states
tracing: Whether to enable tracing. True=always enable, False=always disable, None=check environment/user settings
**kwargs: Additional state values to initialize or override
"""
# Initialize basic instance attributes
@@ -486,13 +492,11 @@ class Flow(Generic[T], metaclass=FlowMeta):
# Initialize state with initial values
self._state = self._create_initial_state()
self.tracing = tracing
if (
is_tracing_enabled()
or self.tracing
or should_auto_collect_first_time_traces()
):
trace_listener = TraceCollectionListener()
trace_listener.setup_listeners(crewai_event_bus)
tracing_enabled = should_enable_tracing(override=self.tracing)
set_tracing_enabled(tracing_enabled)
trace_listener = TraceCollectionListener()
trace_listener.setup_listeners(crewai_event_bus)
# Apply any additional kwargs
if kwargs:
self._initialize_state(kwargs)
@@ -934,18 +938,13 @@ class Flow(Generic[T], metaclass=FlowMeta):
)
self._event_futures.clear()
if (
is_tracing_enabled()
or self.tracing
or should_auto_collect_first_time_traces()
):
trace_listener = TraceCollectionListener()
if trace_listener.batch_manager.batch_owner_type == "flow":
if trace_listener.first_time_handler.is_first_time:
trace_listener.first_time_handler.mark_events_collected()
trace_listener.first_time_handler.handle_execution_completion()
else:
trace_listener.batch_manager.finalize_batch()
trace_listener = TraceCollectionListener()
if trace_listener.batch_manager.batch_owner_type == "flow":
if trace_listener.first_time_handler.is_first_time:
trace_listener.first_time_handler.mark_events_collected()
trace_listener.first_time_handler.handle_execution_completion()
else:
trace_listener.batch_manager.finalize_batch()
return final_output
finally:
@@ -1379,3 +1378,32 @@ class Flow(Generic[T], metaclass=FlowMeta):
)
structure = build_flow_structure(self)
return render_interactive(structure, filename=filename, show=show)
@staticmethod
def _show_tracing_disabled_message() -> None:
"""Show a message when tracing is disabled."""
console = Console()
if has_user_declined_tracing():
message = """Info: Tracing is disabled.
To enable tracing, do any one of these:
• Set tracing=True in your Flow code
• Set CREWAI_TRACING_ENABLED=true in your project's .env file
• Run: crewai traces enable"""
else:
message = """Info: Tracing is disabled.
To enable tracing, do any one of these:
• Set tracing=True in your Flow code
• Set CREWAI_TRACING_ENABLED=true in your project's .env file
• Run: crewai traces enable"""
panel = Panel(
message,
title="Tracing Status",
border_style="blue",
padding=(1, 2),
)
console.print(panel)

View File

@@ -21,6 +21,7 @@ P = ParamSpec("P")
R = TypeVar("R", covariant=True)
FlowMethodName = NewType("FlowMethodName", str)
FlowRouteName = NewType("FlowRouteName", str)
PendingListenerKey = NewType(
"PendingListenerKey",
Annotated[str, "nested flow conditions use 'listener_name:object_id'"],

View File

@@ -19,11 +19,11 @@ import ast
from collections import defaultdict, deque
import inspect
import textwrap
from typing import Any, TYPE_CHECKING
from typing import TYPE_CHECKING, Any
from typing_extensions import TypeIs
from crewai.flow.constants import OR_CONDITION, AND_CONDITION
from crewai.flow.constants import AND_CONDITION, OR_CONDITION
from crewai.flow.flow_wrappers import (
FlowCondition,
FlowConditions,
@@ -33,6 +33,7 @@ from crewai.flow.flow_wrappers import (
from crewai.flow.types import FlowMethodCallable, FlowMethodName
from crewai.utilities.printer import Printer
if TYPE_CHECKING:
from crewai.flow.flow import Flow
@@ -40,6 +41,22 @@ _printer = Printer()
def get_possible_return_constants(function: Any) -> list[str] | None:
"""Extract possible string return values from a function using AST parsing.
This function analyzes the source code of a router method to identify
all possible string values it might return. It handles:
- Direct string literals: return "value"
- Variable assignments: x = "value"; return x
- Dictionary lookups: d = {"k": "v"}; return d[key]
- Conditional returns: return "a" if cond else "b"
- State attributes: return self.state.attr (infers from class context)
Args:
function: The function to analyze.
Returns:
List of possible string return values, or None if analysis fails.
"""
try:
source = inspect.getsource(function)
except OSError:
@@ -82,6 +99,7 @@ def get_possible_return_constants(function: Any) -> list[str] | None:
return_values: set[str] = set()
dict_definitions: dict[str, list[str]] = {}
variable_values: dict[str, list[str]] = {}
state_attribute_values: dict[str, list[str]] = {}
def extract_string_constants(node: ast.expr) -> list[str]:
"""Recursively extract all string constants from an AST node."""
@@ -91,6 +109,17 @@ def get_possible_return_constants(function: Any) -> list[str] | None:
elif isinstance(node, ast.IfExp):
strings.extend(extract_string_constants(node.body))
strings.extend(extract_string_constants(node.orelse))
elif isinstance(node, ast.Call):
if (
isinstance(node.func, ast.Attribute)
and node.func.attr == "get"
and len(node.args) >= 2
):
default_arg = node.args[1]
if isinstance(default_arg, ast.Constant) and isinstance(
default_arg.value, str
):
strings.append(default_arg.value)
return strings
class VariableAssignmentVisitor(ast.NodeVisitor):
@@ -124,6 +153,22 @@ def get_possible_return_constants(function: Any) -> list[str] | None:
self.generic_visit(node)
def get_attribute_chain(node: ast.expr) -> str | None:
"""Extract the full attribute chain from an AST node.
Examples:
self.state.run_type -> "self.state.run_type"
x.y.z -> "x.y.z"
simple_var -> "simple_var"
"""
if isinstance(node, ast.Name):
return node.id
if isinstance(node, ast.Attribute):
base = get_attribute_chain(node.value)
if base:
return f"{base}.{node.attr}"
return None
class ReturnVisitor(ast.NodeVisitor):
def visit_Return(self, node: ast.Return) -> None:
if (
@@ -139,21 +184,94 @@ def get_possible_return_constants(function: Any) -> list[str] | None:
for v in dict_definitions[var_name_dict]:
return_values.add(v)
elif node.value:
var_name_ret: str | None = None
if isinstance(node.value, ast.Name):
var_name_ret = node.value.id
elif isinstance(node.value, ast.Attribute):
var_name_ret = f"{node.value.value.id if isinstance(node.value.value, ast.Name) else '_'}.{node.value.attr}"
var_name_ret = get_attribute_chain(node.value)
if var_name_ret and var_name_ret in variable_values:
for v in variable_values[var_name_ret]:
return_values.add(v)
elif var_name_ret and var_name_ret in state_attribute_values:
for v in state_attribute_values[var_name_ret]:
return_values.add(v)
self.generic_visit(node)
def visit_If(self, node: ast.If) -> None:
self.generic_visit(node)
# Try to get the class context to infer state attribute values
try:
if hasattr(function, "__self__"):
# Method is bound, get the class
class_obj = function.__self__.__class__
elif hasattr(function, "__qualname__") and "." in function.__qualname__:
# Method is unbound but we can try to get class from module
class_name = function.__qualname__.rsplit(".", 1)[0]
if hasattr(function, "__globals__"):
class_obj = function.__globals__.get(class_name)
else:
class_obj = None
else:
class_obj = None
if class_obj is not None:
try:
class_source = inspect.getsource(class_obj)
class_source = textwrap.dedent(class_source)
class_ast = ast.parse(class_source)
# Look for comparisons and assignments involving state attributes
class StateAttributeVisitor(ast.NodeVisitor):
def visit_Compare(self, node: ast.Compare) -> None:
"""Find comparisons like: self.state.attr == "value" """
left_attr = get_attribute_chain(node.left)
if left_attr:
for comparator in node.comparators:
if isinstance(comparator, ast.Constant) and isinstance(
comparator.value, str
):
if left_attr not in state_attribute_values:
state_attribute_values[left_attr] = []
if (
comparator.value
not in state_attribute_values[left_attr]
):
state_attribute_values[left_attr].append(
comparator.value
)
# Also check right side
for comparator in node.comparators:
right_attr = get_attribute_chain(comparator)
if (
right_attr
and isinstance(node.left, ast.Constant)
and isinstance(node.left.value, str)
):
if right_attr not in state_attribute_values:
state_attribute_values[right_attr] = []
if (
node.left.value
not in state_attribute_values[right_attr]
):
state_attribute_values[right_attr].append(
node.left.value
)
self.generic_visit(node)
StateAttributeVisitor().visit(class_ast)
except Exception as e:
_printer.print(
f"Could not analyze class context for {function.__name__}: {e}",
color="yellow",
)
except Exception as e:
_printer.print(
f"Could not introspect class for {function.__name__}: {e}",
color="yellow",
)
VariableAssignmentVisitor().visit(code_ast)
ReturnVisitor().visit(code_ast)

File diff suppressed because it is too large Load Diff

View File

@@ -6,6 +6,7 @@
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
<link rel="stylesheet" href="'{{ css_path }}'" />
<script src="https://unpkg.com/lucide@latest"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/prism.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/components/prism-python.min.js"></script>
<script src="'{{ js_path }}'"></script>
@@ -23,93 +24,129 @@
<div class="drawer-title" id="drawer-node-name">Node Details</div>
<div style="display: flex; align-items: center;">
<button class="drawer-open-ide" id="drawer-open-ide" style="display: none;">
<svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="2">
<path d="M4 2 L12 2 L12 14 L4 14 Z" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M6 5 L10 5 M6 8 L10 8 M6 11 L10 11" stroke-linecap="round"/>
</svg>
<i data-lucide="file-code" style="width: 16px; height: 16px;"></i>
Open in IDE
</button>
<button class="drawer-close" id="drawer-close">×</button>
<button class="drawer-close" id="drawer-close">
<i data-lucide="x" style="width: 20px; height: 20px;"></i>
</button>
</div>
</div>
<div class="drawer-content" id="drawer-content"></div>
</div>
<div id="info">
<div style="text-align: center; margin-bottom: 20px;">
<div style="text-align: center;">
<img src="https://cdn.prod.website-files.com/68de1ee6d7c127849807d7a6/68de1ee6d7c127849807d7ef_Logo.svg"
alt="CrewAI Logo"
style="width: 120px; height: auto;">
</div>
<h3>Flow Execution</h3>
<div class="stats">
<p><strong>Nodes:</strong> '{{ dag_nodes_count }}'</p>
<p><strong>Edges:</strong> '{{ dag_edges_count }}'</p>
<p><strong>Topological Paths:</strong> '{{ execution_paths }}'</p>
</div>
<div class="legend">
<div class="legend-title">Node Types</div>
<div class="legend-item">
<div class="legend-color" style="background: '{{ CREWAI_ORANGE }}';"></div>
<span>Start Methods</span>
</div>
<div class="legend-item">
<div class="legend-color" style="background: '{{ DARK_GRAY }}'; border: 3px solid '{{ CREWAI_ORANGE }}';"></div>
<span>Router Methods</span>
</div>
<div class="legend-item">
<div class="legend-color" style="background: '{{ DARK_GRAY }}';"></div>
<span>Listen Methods</span>
</div>
</div>
<div class="legend">
<div class="legend-title">Edge Types</div>
<div class="legend-item">
<svg width="24" height="12" style="margin-right: 12px;">
<line x1="0" y1="6" x2="24" y2="6" stroke="'{{ CREWAI_ORANGE }}'" stroke-width="2" stroke-dasharray="5,5"/>
</svg>
<span>Router Paths</span>
</div>
<div class="legend-item">
<svg width="24" height="12" style="margin-right: 12px;" class="legend-or-line">
<line x1="0" y1="6" x2="24" y2="6" stroke="var(--edge-or-color)" stroke-width="2"/>
</svg>
<span>OR Conditions</span>
</div>
<div class="legend-item">
<svg width="24" height="12" style="margin-right: 12px;">
<line x1="0" y1="6" x2="24" y2="6" stroke="'{{ CREWAI_ORANGE }}'" stroke-width="2"/>
</svg>
<span>AND Conditions</span>
</div>
</div>
<div class="instructions">
<strong>Interactions:</strong><br>
• Drag to pan<br>
• Scroll to zoom<br><br>
<strong>IDE:</strong>
<select id="ide-selector" style="width: 100%; padding: 4px; margin-top: 4px; border-radius: 3px; border: 1px solid #e0e0e0; background: white; font-size: 12px; cursor: pointer; pointer-events: auto; position: relative; z-index: 10;">
<option value="auto">Auto-detect</option>
<option value="pycharm">PyCharm</option>
<option value="vscode">VS Code</option>
<option value="jetbrains">JetBrains (Toolbox)</option>
</select>
style="width: 144px; height: auto;">
</div>
</div>
<!-- Custom navigation controls -->
<div class="nav-controls">
<div class="nav-button" id="theme-toggle" title="Toggle Dark Mode">🌙</div>
<div class="nav-button" id="zoom-in" title="Zoom In">+</div>
<div class="nav-button" id="zoom-out" title="Zoom Out"></div>
<div class="nav-button" id="fit" title="Fit to Screen">⊡</div>
<div class="nav-button" id="export-png" title="Export to PNG">🖼</div>
<div class="nav-button" id="export-pdf" title="Export to PDF">📄</div>
<div class="nav-button" id="export-json" title="Export to JSON">{}</div>
<div class="nav-button" id="theme-toggle" title="Toggle Dark Mode">
<i data-lucide="moon" style="width: 18px; height: 18px;"></i>
</div>
<div class="nav-button" id="zoom-in" title="Zoom In">
<i data-lucide="zoom-in" style="width: 18px; height: 18px;"></i>
</div>
<div class="nav-button" id="zoom-out" title="Zoom Out">
<i data-lucide="zoom-out" style="width: 18px; height: 18px;"></i>
</div>
<div class="nav-button" id="fit" title="Fit to Screen">
<i data-lucide="maximize-2" style="width: 18px; height: 18px;"></i>
</div>
<div class="nav-button" id="export-png" title="Export to PNG">
<i data-lucide="image" style="width: 18px; height: 18px;"></i>
</div>
<div class="nav-button" id="export-pdf" title="Export to PDF">
<i data-lucide="file-text" style="width: 18px; height: 18px;"></i>
</div>
<!-- <div class="nav-button" id="export-json" title="Export to JSON">
<i data-lucide="braces" style="width: 18px; height: 18px;"></i>
</div> -->
</div>
<div id="network-container">
<div id="network"></div>
</div>
<!-- Info panel at bottom -->
<div id="legend-panel">
<!-- Stats Section -->
<div class="legend-section">
<div class="legend-stats-row">
<div class="legend-stat-item">
<span class="stat-value">'{{ dag_nodes_count }}'</span>
<span class="stat-label">Nodes</span>
</div>
<div class="legend-stat-item">
<span class="stat-value">'{{ dag_edges_count }}'</span>
<span class="stat-label">Edges</span>
</div>
<div class="legend-stat-item">
<span class="stat-value">'{{ execution_paths }}'</span>
<span class="stat-label">Paths</span>
</div>
</div>
</div>
<!-- Node Types Section -->
<div class="legend-section">
<div class="legend-group">
<div class="legend-item-compact">
<div class="legend-color-small" style="background: var(--node-bg-start);"></div>
<span>Start</span>
</div>
<div class="legend-item-compact">
<div class="legend-color-small" style="background: var(--node-bg-router); border: 2px solid var(--node-border-start);"></div>
<span>Router</span>
</div>
<div class="legend-item-compact">
<div class="legend-color-small" style="background: var(--node-bg-listen); border: 2px solid var(--node-border-listen);"></div>
<span>Listen</span>
</div>
</div>
</div>
<!-- Edge Types Section -->
<div class="legend-section">
<div class="legend-group">
<div class="legend-item-compact">
<svg>
<line x1="0" y1="7" x2="29" y2="7" stroke="var(--edge-router-color)" stroke-width="2" stroke-dasharray="4,4"/>
</svg>
<span>Router</span>
</div>
<div class="legend-item-compact">
<svg class="legend-or-line">
<line x1="0" y1="7" x2="29" y2="7" stroke="var(--edge-or-color)" stroke-width="2"/>
</svg>
<span>OR</span>
</div>
<div class="legend-item-compact">
<svg>
<line x1="0" y1="7" x2="29" y2="7" stroke="var(--edge-router-color)" stroke-width="2"/>
</svg>
<span>AND</span>
</div>
</div>
</div>
<!-- IDE Selector Section -->
<div class="legend-section">
<div class="legend-ide-column">
<label class="legend-ide-label">IDE</label>
<select id="ide-selector" class="legend-ide-select">
<option value="auto">Auto-detect</option>
<option value="pycharm">PyCharm</option>
<option value="vscode">VS Code</option>
<option value="jetbrains">JetBrains</option>
</select>
</div>
</div>
</div>
</body>
</html>

View File

@@ -13,6 +13,14 @@
--edge-label-text: '{{ GRAY }}';
--edge-label-bg: rgba(255, 255, 255, 0.8);
--edge-or-color: #000000;
--edge-router-color: '{{ CREWAI_ORANGE }}';
--node-border-start: #C94238;
--node-border-listen: #3D3D3D;
--node-bg-start: #FF7066;
--node-bg-router: #FFFFFF;
--node-bg-listen: #FFFFFF;
--node-text-color: #FFFFFF;
--nav-button-hover: #f5f5f5;
}
[data-theme="dark"] {
@@ -30,6 +38,14 @@
--edge-label-text: #c9d1d9;
--edge-label-bg: rgba(22, 27, 34, 0.9);
--edge-or-color: #ffffff;
--edge-router-color: '{{ CREWAI_ORANGE }}';
--node-border-start: #FF5A50;
--node-border-listen: #666666;
--node-bg-start: #B33830;
--node-bg-router: #3D3D3D;
--node-bg-listen: #3D3D3D;
--node-text-color: #FFFFFF;
--nav-button-hover: #30363d;
}
@keyframes dash {
@@ -72,12 +88,10 @@ body {
position: absolute;
top: 20px;
left: 20px;
background: var(--bg-secondary);
background: transparent;
padding: 20px;
border-radius: 8px;
box-shadow: 0 4px 12px var(--shadow-strong);
max-width: 320px;
border: 1px solid var(--border-color);
z-index: 10000;
pointer-events: auto;
transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
@@ -125,12 +139,16 @@ h3 {
margin-right: 12px;
border-radius: 3px;
box-sizing: border-box;
transition: background 0.3s ease, border-color 0.3s ease;
}
.legend-item span {
color: var(--text-secondary);
font-size: 13px;
transition: color 0.3s ease;
}
.legend-item svg line {
transition: stroke 0.3s ease;
}
.instructions {
margin-top: 15px;
padding-top: 15px;
@@ -155,7 +173,7 @@ h3 {
bottom: 20px;
right: auto;
display: grid;
grid-template-columns: repeat(4, 40px);
grid-template-columns: repeat(3, 40px);
gap: 8px;
z-index: 10002;
pointer-events: auto;
@@ -165,10 +183,187 @@ h3 {
.nav-controls.drawer-open {
}
#legend-panel {
position: fixed;
left: 164px;
bottom: 20px;
right: 20px;
height: 92px;
background: var(--bg-secondary);
backdrop-filter: blur(12px) saturate(180%);
-webkit-backdrop-filter: blur(12px) saturate(180%);
border: 1px solid var(--border-subtle);
border-radius: 6px;
box-shadow: 0 2px 8px var(--shadow-color);
display: grid;
grid-template-columns: repeat(4, 1fr);
align-items: center;
gap: 0;
padding: 0 24px;
box-sizing: border-box;
z-index: 10001;
pointer-events: auto;
transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
#legend-panel.drawer-open {
right: 405px;
}
.legend-section {
display: flex;
align-items: center;
justify-content: center;
min-width: 0;
width: -webkit-fill-available;
width: -moz-available;
width: stretch;
position: relative;
}
.legend-section:not(:last-child)::after {
content: '';
position: absolute;
right: 0;
top: 50%;
transform: translateY(-50%);
width: 1px;
height: 48px;
background: var(--border-color);
transition: background 0.3s ease;
}
.legend-stats-row {
display: flex;
gap: 32px;
justify-content: center;
align-items: center;
min-width: 0;
}
.legend-stat-item {
display: flex;
flex-direction: column;
align-items: center;
gap: 4px;
}
.stat-value {
font-size: 19px;
font-weight: 700;
color: var(--text-primary);
line-height: 1;
transition: color 0.3s ease;
}
.stat-label {
font-size: 8px;
font-weight: 500;
text-transform: uppercase;
color: var(--text-secondary);
letter-spacing: 0.5px;
transition: color 0.3s ease;
}
.legend-items-row {
display: flex;
gap: 16px;
align-items: center;
justify-content: center;
min-width: 0;
}
.legend-group {
display: flex;
gap: 16px;
align-items: center;
}
.legend-item-compact {
display: flex;
align-items: center;
gap: 6px;
}
.legend-item-compact span {
font-size: 12px;
font-weight: 500;
text-transform: uppercase;
color: var(--text-secondary);
letter-spacing: 0.5px;
white-space: nowrap;
font-family: inherit;
line-height: 1;
transition: color 0.3s ease;
}
.legend-color-small {
width: 17px;
height: 17px;
border-radius: 2px;
box-sizing: border-box;
flex-shrink: 0;
transition: background 0.3s ease, border-color 0.3s ease;
}
.legend-item-compact svg {
display: block;
flex-shrink: 0;
width: 29px;
height: 14px;
}
.legend-item-compact svg line {
transition: stroke 0.3s ease;
}
.legend-ide-column {
display: flex;
flex-direction: row;
gap: 8px;
align-items: center;
justify-content: center;
min-width: 0;
width: 100%;
}
.legend-ide-label {
font-size: 12px;
font-weight: 500;
text-transform: uppercase;
color: var(--text-secondary);
letter-spacing: 0.5px;
transition: color 0.3s ease;
white-space: nowrap;
}
.legend-ide-select {
width: 120px;
padding: 6px 10px;
border-radius: 4px;
border: 1px solid var(--border-subtle);
background: var(--bg-primary);
color: var(--text-primary);
font-size: 11px;
cursor: pointer;
transition: all 0.3s ease;
}
.legend-ide-select:hover {
border-color: var(--text-secondary);
}
.legend-ide-select:focus {
outline: none;
border-color: '{{ CREWAI_ORANGE }}';
}
.nav-button {
width: 40px;
height: 40px;
background: var(--bg-secondary);
backdrop-filter: blur(12px) saturate(180%);
-webkit-backdrop-filter: blur(12px) saturate(180%);
border: 1px solid var(--border-subtle);
border-radius: 6px;
display: flex;
@@ -181,12 +376,12 @@ h3 {
user-select: none;
pointer-events: auto;
position: relative;
z-index: 10001;
z-index: 10002;
transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}
.nav-button:hover {
background: var(--border-subtle);
background: var(--nav-button-hover);
}
#drawer {
@@ -198,9 +393,10 @@ h3 {
background: var(--bg-drawer);
box-shadow: -4px 0 12px var(--shadow-strong);
transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1), background 0.3s ease, box-shadow 0.3s ease;
z-index: 2000;
overflow-y: auto;
padding: 24px;
z-index: 10003;
overflow: hidden;
transform: translateZ(0);
isolation: isolate;
}
#drawer.open {
@@ -247,17 +443,22 @@ h3 {
justify-content: space-between;
align-items: center;
margin-bottom: 20px;
padding-bottom: 16px;
padding: 24px 24px 16px 24px;
border-bottom: 2px solid '{{ CREWAI_ORANGE }}';
position: relative;
z-index: 2001;
}
.drawer-title {
font-size: 20px;
font-size: 15px;
font-weight: 700;
color: var(--text-primary);
transition: color 0.3s ease;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
flex: 1;
min-width: 0;
}
.drawer-close {
@@ -269,12 +470,19 @@ h3 {
padding: 4px 8px;
line-height: 1;
transition: color 0.3s ease;
display: flex;
align-items: center;
justify-content: center;
}
.drawer-close:hover {
color: '{{ CREWAI_ORANGE }}';
}
.drawer-close i {
display: block;
}
.drawer-open-ide {
background: '{{ CREWAI_ORANGE }}';
border: none;
@@ -292,6 +500,9 @@ h3 {
position: relative;
z-index: 9999;
pointer-events: auto;
white-space: nowrap;
flex-shrink: 0;
min-width: fit-content;
}
.drawer-open-ide:hover {
@@ -305,14 +516,19 @@ h3 {
box-shadow: 0 1px 4px rgba(255, 90, 80, 0.2);
}
.drawer-open-ide svg {
.drawer-open-ide svg,
.drawer-open-ide i {
width: 14px;
height: 14px;
display: block;
}
.drawer-content {
color: '{{ DARK_GRAY }}';
line-height: 1.6;
padding: 0 24px 24px 24px;
overflow-y: auto;
height: calc(100vh - 95px);
}
.drawer-section {
@@ -328,6 +544,10 @@ h3 {
position: relative;
}
.drawer-metadata-grid:has(.drawer-section:nth-child(3):nth-last-child(1)) {
grid-template-columns: 1fr 2fr;
}
.drawer-metadata-grid::before {
content: '';
position: absolute;
@@ -419,20 +639,35 @@ h3 {
grid-column: 2;
display: flex;
flex-direction: column;
justify-content: center;
justify-content: flex-start;
align-items: flex-start;
}
.drawer-metadata-grid:has(.drawer-section:nth-child(3):nth-last-child(1))::after {
right: 50%;
right: 66.666%;
}
.drawer-metadata-grid:has(.drawer-section:nth-child(3):nth-last-child(1))::before {
left: 33.333%;
}
.drawer-metadata-grid .drawer-section:nth-child(3):nth-last-child(1) .drawer-section-title {
align-self: flex-start;
}
.drawer-metadata-grid .drawer-section:nth-child(3):nth-last-child(1) > *:not(.drawer-section-title) {
width: 100%;
align-self: stretch;
}
.drawer-section-title {
font-size: 12px;
text-transform: uppercase;
color: '{{ GRAY }}';
color: var(--text-secondary);
letter-spacing: 0.5px;
margin-bottom: 8px;
font-weight: 600;
transition: color 0.3s ease;
}
.drawer-badge {
@@ -465,9 +700,44 @@ h3 {
padding: 3px 0;
}
.drawer-metadata-grid .drawer-section .drawer-list {
display: flex;
flex-direction: column;
gap: 6px;
}
.drawer-metadata-grid .drawer-section .drawer-list li {
border-bottom: none;
padding: 0;
}
.drawer-metadata-grid .drawer-section:nth-child(3) .drawer-list li {
border-bottom: none;
padding: 3px 0;
padding: 0;
}
.drawer-metadata-grid .drawer-section {
overflow: visible;
}
.drawer-metadata-grid .drawer-section .condition-group,
.drawer-metadata-grid .drawer-section .trigger-group {
width: 100%;
box-sizing: border-box;
}
.drawer-metadata-grid .drawer-section .condition-children {
width: 100%;
}
.drawer-metadata-grid .drawer-section .trigger-group-items {
width: 100%;
}
.drawer-metadata-grid .drawer-section .drawer-code-link {
word-break: break-word;
overflow-wrap: break-word;
max-width: 100%;
}
.drawer-code {
@@ -491,6 +761,7 @@ h3 {
cursor: pointer;
transition: all 0.2s;
display: inline-block;
margin: 3px 2px;
}
.drawer-code-link:hover {

View File

@@ -3,12 +3,13 @@
from __future__ import annotations
from collections import defaultdict
from collections.abc import Iterable
import inspect
from typing import TYPE_CHECKING, Any
from crewai.flow.constants import AND_CONDITION, OR_CONDITION
from crewai.flow.flow_wrappers import FlowCondition
from crewai.flow.types import FlowMethodName
from crewai.flow.types import FlowMethodName, FlowRouteName
from crewai.flow.utils import (
is_flow_condition_dict,
is_simple_flow_condition,
@@ -197,8 +198,6 @@ def build_flow_structure(flow: Flow[Any]) -> FlowStructure:
node_metadata["type"] = "router"
router_methods.append(method_name)
node_metadata["condition_type"] = "IF"
if method_name in flow._router_paths:
node_metadata["router_paths"] = [
str(p) for p in flow._router_paths[method_name]
@@ -210,9 +209,13 @@ def build_flow_structure(flow: Flow[Any]) -> FlowStructure:
]
if hasattr(method, "__condition_type__") and method.__condition_type__:
node_metadata["trigger_condition_type"] = method.__condition_type__
if "condition_type" not in node_metadata:
node_metadata["condition_type"] = method.__condition_type__
if node_metadata.get("is_router") and "condition_type" not in node_metadata:
node_metadata["condition_type"] = "IF"
if (
hasattr(method, "__trigger_condition__")
and method.__trigger_condition__ is not None
@@ -298,6 +301,9 @@ def build_flow_structure(flow: Flow[Any]) -> FlowStructure:
nodes[method_name] = node_metadata
for listener_name, condition_data in flow._listeners.items():
if listener_name in router_methods:
continue
if is_simple_flow_condition(condition_data):
cond_type, methods = condition_data
edges.extend(
@@ -315,6 +321,60 @@ def build_flow_structure(flow: Flow[Any]) -> FlowStructure:
_create_edges_from_condition(condition_data, str(listener_name), nodes)
)
for method_name, node_metadata in nodes.items(): # type: ignore[assignment]
if node_metadata.get("is_router") and "trigger_methods" in node_metadata:
trigger_methods = node_metadata["trigger_methods"]
condition_type = node_metadata.get("trigger_condition_type", OR_CONDITION)
if "trigger_condition" in node_metadata:
edges.extend(
_create_edges_from_condition(
node_metadata["trigger_condition"], # type: ignore[arg-type]
method_name,
nodes,
)
)
else:
edges.extend(
StructureEdge(
source=trigger_method,
target=method_name,
condition_type=condition_type,
is_router_path=False,
)
for trigger_method in trigger_methods
if trigger_method in nodes
)
for router_method_name in router_methods:
if router_method_name not in flow._router_paths:
flow._router_paths[FlowMethodName(router_method_name)] = []
inferred_paths: Iterable[FlowMethodName | FlowRouteName] = set(
flow._router_paths.get(FlowMethodName(router_method_name), [])
)
for condition_data in flow._listeners.values():
trigger_strings: list[str] = []
if is_simple_flow_condition(condition_data):
_, methods = condition_data
trigger_strings = [str(m) for m in methods]
elif is_flow_condition_dict(condition_data):
trigger_strings = _extract_direct_or_triggers(condition_data)
for trigger_str in trigger_strings:
if trigger_str not in nodes:
# This is likely a router path output
inferred_paths.add(trigger_str) # type: ignore[attr-defined]
if inferred_paths:
flow._router_paths[FlowMethodName(router_method_name)] = list(
inferred_paths # type: ignore[arg-type]
)
if router_method_name in nodes:
nodes[router_method_name]["router_paths"] = list(inferred_paths)
for router_method_name in router_methods:
if router_method_name not in flow._router_paths:
continue
@@ -340,6 +400,7 @@ def build_flow_structure(flow: Flow[Any]) -> FlowStructure:
target=str(listener_name),
condition_type=None,
is_router_path=True,
router_path_label=str(path),
)
)

View File

@@ -20,7 +20,7 @@ class CSSExtension(Extension):
Provides {% css 'path/to/file.css' %} tag syntax.
"""
tags: ClassVar[set[str]] = {"css"} # type: ignore[assignment]
tags: ClassVar[set[str]] = {"css"} # type: ignore[misc]
def parse(self, parser: Parser) -> nodes.Node:
"""Parse {% css 'styles.css' %} tag.
@@ -53,7 +53,7 @@ class JSExtension(Extension):
Provides {% js 'path/to/file.js' %} tag syntax.
"""
tags: ClassVar[set[str]] = {"js"} # type: ignore[assignment]
tags: ClassVar[set[str]] = {"js"} # type: ignore[misc]
def parse(self, parser: Parser) -> nodes.Node:
"""Parse {% js 'script.js' %} tag.
@@ -91,6 +91,116 @@ TEXT_PRIMARY = "#e6edf3"
TEXT_SECONDARY = "#7d8590"
def calculate_node_positions(
dag: FlowStructure,
) -> dict[str, dict[str, int | float]]:
"""Calculate hierarchical positions (level, x, y) for each node.
Args:
dag: FlowStructure containing nodes and edges.
Returns:
Dictionary mapping node names to their position data (level, x, y).
"""
children: dict[str, list[str]] = {name: [] for name in dag["nodes"]}
parents: dict[str, list[str]] = {name: [] for name in dag["nodes"]}
for edge in dag["edges"]:
source = edge["source"]
target = edge["target"]
if source in children and target in children:
children[source].append(target)
parents[target].append(source)
levels: dict[str, int] = {}
queue: list[tuple[str, int]] = []
for start_method in dag["start_methods"]:
if start_method in dag["nodes"]:
levels[start_method] = 0
queue.append((start_method, 0))
visited: set[str] = set()
while queue:
node, level = queue.pop(0)
if node in visited:
continue
visited.add(node)
if node not in levels or levels[node] < level:
levels[node] = level
for child in children.get(node, []):
if child not in visited:
child_level = level + 1
if child not in levels or levels[child] < child_level:
levels[child] = child_level
queue.append((child, child_level))
for name in dag["nodes"]:
if name not in levels:
levels[name] = 0
nodes_by_level: dict[int, list[str]] = {}
for node, level in levels.items():
if level not in nodes_by_level:
nodes_by_level[level] = []
nodes_by_level[level].append(node)
positions: dict[str, dict[str, int | float]] = {}
level_separation = 300 # Vertical spacing between levels
node_spacing = 400 # Horizontal spacing between nodes
parent_count: dict[str, int] = {}
for node, parent_list in parents.items():
parent_count[node] = len(parent_list)
for level, nodes_at_level in sorted(nodes_by_level.items()):
y = level * level_separation
if level == 0:
num_nodes = len(nodes_at_level)
for i, node in enumerate(nodes_at_level):
x = (i - (num_nodes - 1) / 2) * node_spacing
positions[node] = {"level": level, "x": x, "y": y}
else:
for i, node in enumerate(nodes_at_level):
parent_list = parents.get(node, [])
parent_positions: list[float] = [
positions[parent]["x"]
for parent in parent_list
if parent in positions
]
if parent_positions:
if len(parent_positions) > 1 and len(set(parent_positions)) == 1:
base_x = parent_positions[0]
avg_x = base_x + node_spacing * 0.4
else:
avg_x = sum(parent_positions) / len(parent_positions)
else:
avg_x = i * node_spacing * 0.5
positions[node] = {"level": level, "x": avg_x, "y": y}
nodes_at_level_sorted = sorted(
nodes_at_level, key=lambda n: positions[n]["x"]
)
min_spacing = node_spacing * 0.6 # Minimum horizontal distance
for i in range(len(nodes_at_level_sorted) - 1):
current_node = nodes_at_level_sorted[i]
next_node = nodes_at_level_sorted[i + 1]
current_x = positions[current_node]["x"]
next_x = positions[next_node]["x"]
if next_x - current_x < min_spacing:
positions[next_node]["x"] = current_x + min_spacing
return positions
def render_interactive(
dag: FlowStructure,
filename: str = "flow_dag.html",
@@ -110,6 +220,8 @@ def render_interactive(
Returns:
Absolute path to generated HTML file in temporary directory.
"""
node_positions = calculate_node_positions(dag)
nodes_list: list[dict[str, Any]] = []
for name, metadata in dag["nodes"].items():
node_type: str = metadata.get("type", "listen")
@@ -120,37 +232,37 @@ def render_interactive(
if node_type == "start":
color_config = {
"background": CREWAI_ORANGE,
"border": CREWAI_ORANGE,
"background": "var(--node-bg-start)",
"border": "var(--node-border-start)",
"highlight": {
"background": CREWAI_ORANGE,
"border": CREWAI_ORANGE,
"background": "var(--node-bg-start)",
"border": "var(--node-border-start)",
},
}
font_color = WHITE
border_width = 2
font_color = "var(--node-text-color)"
border_width = 3
elif node_type == "router":
color_config = {
"background": DARK_GRAY,
"background": "var(--node-bg-router)",
"border": CREWAI_ORANGE,
"highlight": {
"background": DARK_GRAY,
"background": "var(--node-bg-router)",
"border": CREWAI_ORANGE,
},
}
font_color = WHITE
font_color = "var(--node-text-color)"
border_width = 3
else:
color_config = {
"background": DARK_GRAY,
"border": DARK_GRAY,
"background": "var(--node-bg-listen)",
"border": "var(--node-border-listen)",
"highlight": {
"background": DARK_GRAY,
"border": DARK_GRAY,
"background": "var(--node-bg-listen)",
"border": "var(--node-border-listen)",
},
}
font_color = WHITE
border_width = 2
font_color = "var(--node-text-color)"
border_width = 3
title_parts: list[str] = []
@@ -215,25 +327,34 @@ def render_interactive(
bg_color = color_config["background"]
border_color = color_config["border"]
nodes_list.append(
{
"id": name,
"label": name,
"title": "".join(title_parts),
"shape": "custom",
"size": 30,
"nodeStyle": {
"name": name,
"bgColor": bg_color,
"borderColor": border_color,
"borderWidth": border_width,
"fontColor": font_color,
},
"opacity": 1.0,
"glowSize": 0,
"glowColor": None,
}
)
position_data = node_positions.get(name, {"level": 0, "x": 0, "y": 0})
node_data: dict[str, Any] = {
"id": name,
"label": name,
"title": "".join(title_parts),
"shape": "custom",
"size": 30,
"level": position_data["level"],
"nodeStyle": {
"name": name,
"bgColor": bg_color,
"borderColor": border_color,
"borderWidth": border_width,
"fontColor": font_color,
},
"opacity": 1.0,
"glowSize": 0,
"glowColor": None,
}
# Add x,y only for graphs with 3-4 nodes
total_nodes = len(dag["nodes"])
if 3 <= total_nodes <= 4:
node_data["x"] = position_data["x"]
node_data["y"] = position_data["y"]
nodes_list.append(node_data)
execution_paths: int = calculate_execution_paths(dag)
@@ -246,6 +367,8 @@ def render_interactive(
if edge["is_router_path"]:
edge_color = CREWAI_ORANGE
edge_dashes = [15, 10]
if "router_path_label" in edge:
edge_label = edge["router_path_label"]
elif edge["condition_type"] == "AND":
edge_label = "AND"
edge_color = CREWAI_ORANGE

View File

@@ -10,6 +10,7 @@ class NodeMetadata(TypedDict, total=False):
is_router: bool
router_paths: list[str]
condition_type: str | None
trigger_condition_type: str | None
trigger_methods: list[str]
trigger_condition: dict[str, Any] | None
method_signature: dict[str, Any]
@@ -22,13 +23,14 @@ class NodeMetadata(TypedDict, total=False):
class_line_number: int
class StructureEdge(TypedDict):
class StructureEdge(TypedDict, total=False):
"""Represents a connection in the flow structure."""
source: str
target: str
condition_type: str | None
is_router_path: bool
router_path_label: str
class FlowStructure(TypedDict):

View File

@@ -0,0 +1,108 @@
from __future__ import annotations
from crewai.hooks.decorators import (
after_llm_call,
after_tool_call,
before_llm_call,
before_tool_call,
)
from crewai.hooks.llm_hooks import (
LLMCallHookContext,
clear_after_llm_call_hooks,
clear_all_llm_call_hooks,
clear_before_llm_call_hooks,
get_after_llm_call_hooks,
get_before_llm_call_hooks,
register_after_llm_call_hook,
register_before_llm_call_hook,
unregister_after_llm_call_hook,
unregister_before_llm_call_hook,
)
from crewai.hooks.tool_hooks import (
ToolCallHookContext,
clear_after_tool_call_hooks,
clear_all_tool_call_hooks,
clear_before_tool_call_hooks,
get_after_tool_call_hooks,
get_before_tool_call_hooks,
register_after_tool_call_hook,
register_before_tool_call_hook,
unregister_after_tool_call_hook,
unregister_before_tool_call_hook,
)
def clear_all_global_hooks() -> dict[str, tuple[int, int]]:
"""Clear all global hooks across all hook types (LLM and Tool).
This is a convenience function that clears all registered hooks in one call.
Useful for testing, resetting state, or cleaning up between different
execution contexts.
Returns:
Dictionary with counts of cleared hooks:
{
"llm_hooks": (before_count, after_count),
"tool_hooks": (before_count, after_count),
"total": (total_before_count, total_after_count)
}
Example:
>>> # Register various hooks
>>> register_before_llm_call_hook(llm_hook1)
>>> register_after_llm_call_hook(llm_hook2)
>>> register_before_tool_call_hook(tool_hook1)
>>> register_after_tool_call_hook(tool_hook2)
>>>
>>> # Clear all hooks at once
>>> result = clear_all_global_hooks()
>>> print(result)
{
'llm_hooks': (1, 1),
'tool_hooks': (1, 1),
'total': (2, 2)
}
"""
llm_counts = clear_all_llm_call_hooks()
tool_counts = clear_all_tool_call_hooks()
return {
"llm_hooks": llm_counts,
"tool_hooks": tool_counts,
"total": (llm_counts[0] + tool_counts[0], llm_counts[1] + tool_counts[1]),
}
__all__ = [
# Context classes
"LLMCallHookContext",
"ToolCallHookContext",
# Decorators
"after_llm_call",
"after_tool_call",
"before_llm_call",
"before_tool_call",
"clear_after_llm_call_hooks",
"clear_after_tool_call_hooks",
"clear_all_global_hooks",
"clear_all_llm_call_hooks",
"clear_all_tool_call_hooks",
# Clear hooks
"clear_before_llm_call_hooks",
"clear_before_tool_call_hooks",
"get_after_llm_call_hooks",
"get_after_tool_call_hooks",
# Get hooks
"get_before_llm_call_hooks",
"get_before_tool_call_hooks",
"register_after_llm_call_hook",
"register_after_tool_call_hook",
# LLM Hook registration
"register_before_llm_call_hook",
# Tool Hook registration
"register_before_tool_call_hook",
"unregister_after_llm_call_hook",
"unregister_after_tool_call_hook",
"unregister_before_llm_call_hook",
"unregister_before_tool_call_hook",
]

View File

@@ -0,0 +1,300 @@
from __future__ import annotations
from collections.abc import Callable
from functools import wraps
import inspect
from typing import TYPE_CHECKING, Any, TypeVar, overload
if TYPE_CHECKING:
from crewai.hooks.llm_hooks import LLMCallHookContext
from crewai.hooks.tool_hooks import ToolCallHookContext
F = TypeVar("F", bound=Callable[..., Any])
def _create_hook_decorator(
hook_type: str,
register_function: Callable[..., Any],
marker_attribute: str,
) -> Callable[..., Any]:
"""Create a hook decorator with filtering support.
This factory function eliminates code duplication across the four hook decorators.
Args:
hook_type: Type of hook ("llm" or "tool")
register_function: Function to call for registration (e.g., register_before_llm_call_hook)
marker_attribute: Attribute name to mark functions (e.g., "is_before_llm_call_hook")
Returns:
A decorator function that supports filters and auto-registration
"""
def decorator_factory(
func: Callable[..., Any] | None = None,
*,
tools: list[str] | None = None,
agents: list[str] | None = None,
) -> Callable[..., Any]:
def decorator(f: Callable[..., Any]) -> Callable[..., Any]:
setattr(f, marker_attribute, True)
sig = inspect.signature(f)
params = list(sig.parameters.keys())
is_method = len(params) >= 2 and params[0] == "self"
if tools:
f._filter_tools = tools # type: ignore[attr-defined]
if agents:
f._filter_agents = agents # type: ignore[attr-defined]
if tools or agents:
@wraps(f)
def filtered_hook(context: Any) -> Any:
if tools and hasattr(context, "tool_name"):
if context.tool_name not in tools:
return None
if agents and hasattr(context, "agent"):
if context.agent and context.agent.role not in agents:
return None
return f(context)
if not is_method:
register_function(filtered_hook)
return f
if not is_method:
register_function(f)
return f
if func is None:
return decorator
return decorator(func)
return decorator_factory
@overload
def before_llm_call(
func: Callable[[LLMCallHookContext], None],
) -> Callable[[LLMCallHookContext], None]: ...
@overload
def before_llm_call(
*,
agents: list[str] | None = None,
) -> Callable[
[Callable[[LLMCallHookContext], None]], Callable[[LLMCallHookContext], None]
]: ...
def before_llm_call(
func: Callable[[LLMCallHookContext], None] | None = None,
*,
agents: list[str] | None = None,
) -> (
Callable[[LLMCallHookContext], None]
| Callable[
[Callable[[LLMCallHookContext], None]], Callable[[LLMCallHookContext], None]
]
):
"""Decorator to register a function as a before_llm_call hook.
Example:
Simple usage::
@before_llm_call
def log_calls(context):
print(f"LLM call by {context.agent.role}")
With agent filter::
@before_llm_call(agents=["Researcher", "Analyst"])
def log_specific_agents(context):
print(f"Filtered LLM call: {context.agent.role}")
"""
from crewai.hooks.llm_hooks import register_before_llm_call_hook
return _create_hook_decorator( # type: ignore[return-value]
hook_type="llm",
register_function=register_before_llm_call_hook,
marker_attribute="is_before_llm_call_hook",
)(func=func, agents=agents)
@overload
def after_llm_call(
func: Callable[[LLMCallHookContext], str | None],
) -> Callable[[LLMCallHookContext], str | None]: ...
@overload
def after_llm_call(
*,
agents: list[str] | None = None,
) -> Callable[
[Callable[[LLMCallHookContext], str | None]],
Callable[[LLMCallHookContext], str | None],
]: ...
def after_llm_call(
func: Callable[[LLMCallHookContext], str | None] | None = None,
*,
agents: list[str] | None = None,
) -> (
Callable[[LLMCallHookContext], str | None]
| Callable[
[Callable[[LLMCallHookContext], str | None]],
Callable[[LLMCallHookContext], str | None],
]
):
"""Decorator to register a function as an after_llm_call hook.
Example:
Simple usage::
@after_llm_call
def sanitize(context):
if "SECRET" in context.response:
return context.response.replace("SECRET", "[REDACTED]")
return None
With agent filter::
@after_llm_call(agents=["Researcher"])
def log_researcher_responses(context):
print(f"Response length: {len(context.response)}")
return None
"""
from crewai.hooks.llm_hooks import register_after_llm_call_hook
return _create_hook_decorator( # type: ignore[return-value]
hook_type="llm",
register_function=register_after_llm_call_hook,
marker_attribute="is_after_llm_call_hook",
)(func=func, agents=agents)
@overload
def before_tool_call(
func: Callable[[ToolCallHookContext], bool | None],
) -> Callable[[ToolCallHookContext], bool | None]: ...
@overload
def before_tool_call(
*,
tools: list[str] | None = None,
agents: list[str] | None = None,
) -> Callable[
[Callable[[ToolCallHookContext], bool | None]],
Callable[[ToolCallHookContext], bool | None],
]: ...
def before_tool_call(
func: Callable[[ToolCallHookContext], bool | None] | None = None,
*,
tools: list[str] | None = None,
agents: list[str] | None = None,
) -> (
Callable[[ToolCallHookContext], bool | None]
| Callable[
[Callable[[ToolCallHookContext], bool | None]],
Callable[[ToolCallHookContext], bool | None],
]
):
"""Decorator to register a function as a before_tool_call hook.
Example:
Simple usage::
@before_tool_call
def log_all_tools(context):
print(f"Tool: {context.tool_name}")
return None
With tool filter::
@before_tool_call(tools=["delete_file", "execute_code"])
def approve_dangerous(context):
response = context.request_human_input(prompt="Approve?")
return None if response == "yes" else False
With combined filters::
@before_tool_call(tools=["write_file"], agents=["Developer"])
def approve_dev_writes(context):
return None # Only for Developer writing files
"""
from crewai.hooks.tool_hooks import register_before_tool_call_hook
return _create_hook_decorator( # type: ignore[return-value]
hook_type="tool",
register_function=register_before_tool_call_hook,
marker_attribute="is_before_tool_call_hook",
)(func=func, tools=tools, agents=agents)
@overload
def after_tool_call(
func: Callable[[ToolCallHookContext], str | None],
) -> Callable[[ToolCallHookContext], str | None]: ...
@overload
def after_tool_call(
*,
tools: list[str] | None = None,
agents: list[str] | None = None,
) -> Callable[
[Callable[[ToolCallHookContext], str | None]],
Callable[[ToolCallHookContext], str | None],
]: ...
def after_tool_call(
func: Callable[[ToolCallHookContext], str | None] | None = None,
*,
tools: list[str] | None = None,
agents: list[str] | None = None,
) -> (
Callable[[ToolCallHookContext], str | None]
| Callable[
[Callable[[ToolCallHookContext], str | None]],
Callable[[ToolCallHookContext], str | None],
]
):
"""Decorator to register a function as an after_tool_call hook.
Example:
Simple usage::
@after_tool_call
def log_results(context):
print(f"Result: {len(context.tool_result)} chars")
return None
With tool filter::
@after_tool_call(tools=["web_search", "ExaSearchTool"])
def sanitize_search_results(context):
if "SECRET" in context.tool_result:
return context.tool_result.replace("SECRET", "[REDACTED]")
return None
"""
from crewai.hooks.tool_hooks import register_after_tool_call_hook
return _create_hook_decorator( # type: ignore[return-value]
hook_type="tool",
register_function=register_after_tool_call_hook,
marker_attribute="is_after_tool_call_hook",
)(func=func, tools=tools, agents=agents)

View File

@@ -0,0 +1,290 @@
from __future__ import annotations
from typing import TYPE_CHECKING
from crewai.events.event_listener import event_listener
from crewai.hooks.types import AfterLLMCallHookType, BeforeLLMCallHookType
from crewai.utilities.printer import Printer
if TYPE_CHECKING:
from crewai.agents.crew_agent_executor import CrewAgentExecutor
class LLMCallHookContext:
"""Context object passed to LLM call hooks with full executor access.
Provides hooks with complete access to the executor state, allowing
modification of messages, responses, and executor attributes.
Attributes:
executor: Full reference to the CrewAgentExecutor instance
messages: Direct reference to executor.messages (mutable list).
Can be modified in both before_llm_call and after_llm_call hooks.
Modifications in after_llm_call hooks persist to the next iteration,
allowing hooks to modify conversation history for subsequent LLM calls.
IMPORTANT: Modify messages in-place (e.g., append, extend, remove items).
Do NOT replace the list (e.g., context.messages = []), as this will break
the executor. Use context.messages.append() or context.messages.extend()
instead of assignment.
agent: Reference to the agent executing the task
task: Reference to the task being executed
crew: Reference to the crew instance
llm: Reference to the LLM instance
iterations: Current iteration count
response: LLM response string (only set for after_llm_call hooks).
Can be modified by returning a new string from after_llm_call hook.
"""
def __init__(
self,
executor: CrewAgentExecutor,
response: str | None = None,
) -> None:
"""Initialize hook context with executor reference.
Args:
executor: The CrewAgentExecutor instance
response: Optional response string (for after_llm_call hooks)
"""
self.executor = executor
self.messages = executor.messages
self.agent = executor.agent
self.task = executor.task
self.crew = executor.crew
self.llm = executor.llm
self.iterations = executor.iterations
self.response = response
def request_human_input(
self,
prompt: str,
default_message: str = "Press Enter to continue, or provide feedback:",
) -> str:
"""Request human input during LLM hook execution.
This method pauses live console updates, displays a prompt to the user,
waits for their input, and then resumes live updates. This is useful for
approval gates, debugging, or getting human feedback during execution.
Args:
prompt: Custom message to display to the user
default_message: Message shown after the prompt
Returns:
User's input as a string (empty string if just Enter pressed)
Example:
>>> def approval_hook(context: LLMCallHookContext) -> None:
... if context.iterations > 5:
... response = context.request_human_input(
... prompt="Allow this LLM call?",
... default_message="Type 'no' to skip, or press Enter:",
... )
... if response.lower() == "no":
... print("LLM call skipped by user")
"""
printer = Printer()
event_listener.formatter.pause_live_updates()
try:
printer.print(content=f"\n{prompt}", color="bold_yellow")
printer.print(content=default_message, color="cyan")
response = input().strip()
if response:
printer.print(content="\nProcessing your input...", color="cyan")
return response
finally:
event_listener.formatter.resume_live_updates()
_before_llm_call_hooks: list[BeforeLLMCallHookType] = []
_after_llm_call_hooks: list[AfterLLMCallHookType] = []
def register_before_llm_call_hook(
hook: BeforeLLMCallHookType,
) -> None:
"""Register a global before_llm_call hook.
Global hooks are added to all executors automatically.
This is a convenience function for registering hooks that should
apply to all LLM calls across all executors.
Args:
hook: Function that receives LLMCallHookContext and can:
- Modify context.messages directly (in-place)
- Return False to block LLM execution
- Return True or None to allow execution
IMPORTANT: Modify messages in-place (append, extend, remove items).
Do NOT replace the list (context.messages = []), as this will break execution.
Example:
>>> def log_llm_calls(context: LLMCallHookContext) -> None:
... print(f"LLM call by {context.agent.role}")
... print(f"Messages: {len(context.messages)}")
... return None # Allow execution
>>>
>>> register_before_llm_call_hook(log_llm_calls)
>>>
>>> def block_excessive_iterations(context: LLMCallHookContext) -> bool | None:
... if context.iterations > 10:
... print("Blocked: Too many iterations")
... return False # Block execution
... return None # Allow execution
>>>
>>> register_before_llm_call_hook(block_excessive_iterations)
"""
_before_llm_call_hooks.append(hook)
def register_after_llm_call_hook(
hook: AfterLLMCallHookType,
) -> None:
"""Register a global after_llm_call hook.
Global hooks are added to all executors automatically.
This is a convenience function for registering hooks that should
apply to all LLM calls across all executors.
Args:
hook: Function that receives LLMCallHookContext and can modify:
- The response: Return modified response string or None to keep original
- The messages: Modify context.messages directly (mutable reference)
Both modifications are supported and can be used together.
IMPORTANT: Modify messages in-place (append, extend, remove items).
Do NOT replace the list (context.messages = []), as this will break execution.
Example:
>>> def sanitize_response(context: LLMCallHookContext) -> str | None:
... if context.response and "SECRET" in context.response:
... return context.response.replace("SECRET", "[REDACTED]")
... return None
>>>
>>> register_after_llm_call_hook(sanitize_response)
"""
_after_llm_call_hooks.append(hook)
def get_before_llm_call_hooks() -> list[BeforeLLMCallHookType]:
"""Get all registered global before_llm_call hooks.
Returns:
List of registered before hooks
"""
return _before_llm_call_hooks.copy()
def get_after_llm_call_hooks() -> list[AfterLLMCallHookType]:
"""Get all registered global after_llm_call hooks.
Returns:
List of registered after hooks
"""
return _after_llm_call_hooks.copy()
def unregister_before_llm_call_hook(
hook: BeforeLLMCallHookType,
) -> bool:
"""Unregister a specific global before_llm_call hook.
Args:
hook: The hook function to remove
Returns:
True if the hook was found and removed, False otherwise
Example:
>>> def my_hook(context: LLMCallHookContext) -> None:
... print("Before LLM call")
>>>
>>> register_before_llm_call_hook(my_hook)
>>> unregister_before_llm_call_hook(my_hook)
True
"""
try:
_before_llm_call_hooks.remove(hook)
return True
except ValueError:
return False
def unregister_after_llm_call_hook(
hook: AfterLLMCallHookType,
) -> bool:
"""Unregister a specific global after_llm_call hook.
Args:
hook: The hook function to remove
Returns:
True if the hook was found and removed, False otherwise
Example:
>>> def my_hook(context: LLMCallHookContext) -> str | None:
... return None
>>>
>>> register_after_llm_call_hook(my_hook)
>>> unregister_after_llm_call_hook(my_hook)
True
"""
try:
_after_llm_call_hooks.remove(hook)
return True
except ValueError:
return False
def clear_before_llm_call_hooks() -> int:
"""Clear all registered global before_llm_call hooks.
Returns:
Number of hooks that were cleared
Example:
>>> register_before_llm_call_hook(hook1)
>>> register_before_llm_call_hook(hook2)
>>> clear_before_llm_call_hooks()
2
"""
count = len(_before_llm_call_hooks)
_before_llm_call_hooks.clear()
return count
def clear_after_llm_call_hooks() -> int:
"""Clear all registered global after_llm_call hooks.
Returns:
Number of hooks that were cleared
Example:
>>> register_after_llm_call_hook(hook1)
>>> register_after_llm_call_hook(hook2)
>>> clear_after_llm_call_hooks()
2
"""
count = len(_after_llm_call_hooks)
_after_llm_call_hooks.clear()
return count
def clear_all_llm_call_hooks() -> tuple[int, int]:
"""Clear all registered global LLM call hooks (both before and after).
Returns:
Tuple of (before_hooks_cleared, after_hooks_cleared)
Example:
>>> register_before_llm_call_hook(before_hook)
>>> register_after_llm_call_hook(after_hook)
>>> clear_all_llm_call_hooks()
(1, 1)
"""
before_count = clear_before_llm_call_hooks()
after_count = clear_after_llm_call_hooks()
return (before_count, after_count)

View File

@@ -0,0 +1,305 @@
from __future__ import annotations
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
if TYPE_CHECKING:
from crewai.agent import Agent
from crewai.agents.agent_builder.base_agent import BaseAgent
from crewai.crew import Crew
from crewai.task import Task
from crewai.tools.structured_tool import CrewStructuredTool
class ToolCallHookContext:
"""Context object passed to tool call hooks.
Provides hooks with access to the tool being called, its input,
the agent/task/crew context, and the result (for after hooks).
Attributes:
tool_name: Name of the tool being called
tool_input: Tool input parameters (mutable dict).
Can be modified in-place by before_tool_call hooks.
IMPORTANT: Modify in-place (e.g., context.tool_input['key'] = value).
Do NOT replace the dict (e.g., context.tool_input = {}), as this
will not affect the actual tool execution.
tool: Reference to the CrewStructuredTool instance
agent: Agent executing the tool (may be None)
task: Current task being executed (may be None)
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.
"""
def __init__(
self,
tool_name: str,
tool_input: dict[str, Any],
tool: CrewStructuredTool,
agent: Agent | BaseAgent | None = None,
task: Task | None = None,
crew: Crew | None = None,
tool_result: str | None = None,
) -> None:
"""Initialize tool call hook context.
Args:
tool_name: Name of the tool being called
tool_input: Tool input parameters (mutable)
tool: Tool instance reference
agent: Optional agent executing the tool
task: Optional current task
crew: Optional crew instance
tool_result: Optional tool result (for after hooks)
"""
self.tool_name = tool_name
self.tool_input = tool_input
self.tool = tool
self.agent = agent
self.task = task
self.crew = crew
self.tool_result = tool_result
def request_human_input(
self,
prompt: str,
default_message: str = "Press Enter to continue, or provide feedback:",
) -> str:
"""Request human input during tool hook execution.
This method pauses live console updates, displays a prompt to the user,
waits for their input, and then resumes live updates. This is useful for
approval gates, reviewing tool results, or getting human feedback during execution.
Args:
prompt: Custom message to display to the user
default_message: Message shown after the prompt
Returns:
User's input as a string (empty string if just Enter pressed)
Example:
>>> def approval_hook(context: ToolCallHookContext) -> bool | None:
... if context.tool_name == "delete_file":
... response = context.request_human_input(
... prompt="Allow file deletion?",
... default_message="Type 'approve' to continue:",
... )
... if response.lower() != "approve":
... return False # Block execution
... return None # Allow execution
"""
printer = Printer()
event_listener.formatter.pause_live_updates()
try:
printer.print(content=f"\n{prompt}", color="bold_yellow")
printer.print(content=default_message, color="cyan")
response = input().strip()
if response:
printer.print(content="\nProcessing your input...", color="cyan")
return response
finally:
event_listener.formatter.resume_live_updates()
# Global hook registries
_before_tool_call_hooks: list[BeforeToolCallHookType] = []
_after_tool_call_hooks: list[AfterToolCallHookType] = []
def register_before_tool_call_hook(
hook: BeforeToolCallHookType,
) -> None:
"""Register a global before_tool_call hook.
Global hooks are added to all tool executions automatically.
This is a convenience function for registering hooks that should
apply to all tool calls across all agents and crews.
Args:
hook: Function that receives ToolCallHookContext and can:
- Modify tool_input in-place
- Return False to block tool execution
- Return True or None to allow execution
IMPORTANT: Modify tool_input in-place (e.g., context.tool_input['key'] = value).
Do NOT replace the dict (context.tool_input = {}), as this will not affect
the actual tool execution.
Example:
>>> def log_tool_usage(context: ToolCallHookContext) -> None:
... print(f"Executing tool: {context.tool_name}")
... print(f"Input: {context.tool_input}")
... return None # Allow execution
>>>
>>> register_before_tool_call_hook(log_tool_usage)
>>> def block_dangerous_tools(context: ToolCallHookContext) -> bool | None:
... if context.tool_name == "delete_database":
... print("Blocked dangerous tool execution!")
... return False # Block execution
... return None # Allow execution
>>>
>>> register_before_tool_call_hook(block_dangerous_tools)
"""
_before_tool_call_hooks.append(hook)
def register_after_tool_call_hook(
hook: AfterToolCallHookType,
) -> None:
"""Register a global after_tool_call hook.
Global hooks are added to all tool executions automatically.
This is a convenience function for registering hooks that should
apply to all tool calls across all agents and crews.
Args:
hook: Function that receives ToolCallHookContext and can modify
the tool result. Return modified result string or None to keep
the original result. The tool_result is available in context.tool_result.
Example:
>>> def sanitize_output(context: ToolCallHookContext) -> str | None:
... if context.tool_result and "SECRET_KEY" in context.tool_result:
... return context.tool_result.replace("SECRET_KEY=...", "[REDACTED]")
... return None # Keep original result
>>>
>>> register_after_tool_call_hook(sanitize_output)
>>> def log_tool_results(context: ToolCallHookContext) -> None:
... print(f"Tool {context.tool_name} returned: {context.tool_result[:100]}")
... return None # Keep original result
>>>
>>> register_after_tool_call_hook(log_tool_results)
"""
_after_tool_call_hooks.append(hook)
def get_before_tool_call_hooks() -> list[BeforeToolCallHookType]:
"""Get all registered global before_tool_call hooks.
Returns:
List of registered before hooks
"""
return _before_tool_call_hooks.copy()
def get_after_tool_call_hooks() -> list[AfterToolCallHookType]:
"""Get all registered global after_tool_call hooks.
Returns:
List of registered after hooks
"""
return _after_tool_call_hooks.copy()
def unregister_before_tool_call_hook(
hook: BeforeToolCallHookType,
) -> bool:
"""Unregister a specific global before_tool_call hook.
Args:
hook: The hook function to remove
Returns:
True if the hook was found and removed, False otherwise
Example:
>>> def my_hook(context: ToolCallHookContext) -> None:
... print("Before tool call")
>>>
>>> register_before_tool_call_hook(my_hook)
>>> unregister_before_tool_call_hook(my_hook)
True
"""
try:
_before_tool_call_hooks.remove(hook)
return True
except ValueError:
return False
def unregister_after_tool_call_hook(
hook: AfterToolCallHookType,
) -> bool:
"""Unregister a specific global after_tool_call hook.
Args:
hook: The hook function to remove
Returns:
True if the hook was found and removed, False otherwise
Example:
>>> def my_hook(context: ToolCallHookContext) -> str | None:
... return None
>>>
>>> register_after_tool_call_hook(my_hook)
>>> unregister_after_tool_call_hook(my_hook)
True
"""
try:
_after_tool_call_hooks.remove(hook)
return True
except ValueError:
return False
def clear_before_tool_call_hooks() -> int:
"""Clear all registered global before_tool_call hooks.
Returns:
Number of hooks that were cleared
Example:
>>> register_before_tool_call_hook(hook1)
>>> register_before_tool_call_hook(hook2)
>>> clear_before_tool_call_hooks()
2
"""
count = len(_before_tool_call_hooks)
_before_tool_call_hooks.clear()
return count
def clear_after_tool_call_hooks() -> int:
"""Clear all registered global after_tool_call hooks.
Returns:
Number of hooks that were cleared
Example:
>>> register_after_tool_call_hook(hook1)
>>> register_after_tool_call_hook(hook2)
>>> clear_after_tool_call_hooks()
2
"""
count = len(_after_tool_call_hooks)
_after_tool_call_hooks.clear()
return count
def clear_all_tool_call_hooks() -> tuple[int, int]:
"""Clear all registered global tool call hooks (both before and after).
Returns:
Tuple of (before_hooks_cleared, after_hooks_cleared)
Example:
>>> register_before_tool_call_hook(before_hook)
>>> register_after_tool_call_hook(after_hook)
>>> clear_all_tool_call_hooks()
(1, 1)
"""
before_count = clear_before_tool_call_hooks()
after_count = clear_after_tool_call_hooks()
return (before_count, after_count)

View File

@@ -0,0 +1,137 @@
from __future__ import annotations
from collections.abc import Callable
from typing import TYPE_CHECKING, Generic, Protocol, TypeVar, runtime_checkable
if TYPE_CHECKING:
from crewai.hooks.llm_hooks import LLMCallHookContext
from crewai.hooks.tool_hooks import ToolCallHookContext
ContextT = TypeVar("ContextT", contravariant=True)
ReturnT = TypeVar("ReturnT", covariant=True)
@runtime_checkable
class Hook(Protocol, Generic[ContextT, ReturnT]):
"""Generic protocol for hook functions.
This protocol defines the common interface for all hook types in CrewAI.
Hooks receive a context object and optionally return a modified result.
Type Parameters:
ContextT: The context type (LLMCallHookContext or ToolCallHookContext)
ReturnT: The return type (None, str | None, or bool | None)
Example:
>>> # Before LLM call hook: receives LLMCallHookContext, returns None
>>> hook: Hook[LLMCallHookContext, None] = lambda ctx: print(ctx.iterations)
>>>
>>> # After LLM call hook: receives LLMCallHookContext, returns str | None
>>> hook: Hook[LLMCallHookContext, str | None] = lambda ctx: ctx.response
"""
def __call__(self, context: ContextT) -> ReturnT:
"""Execute the hook with the given context.
Args:
context: Context object with relevant execution state
Returns:
Hook-specific return value (None, str | None, or bool | None)
"""
...
class BeforeLLMCallHook(Hook["LLMCallHookContext", bool | None], Protocol):
"""Protocol for before_llm_call hooks.
These hooks are called before an LLM is invoked and can modify the messages
that will be sent to the LLM or block the execution entirely.
"""
def __call__(self, context: LLMCallHookContext) -> bool | None:
"""Execute the before LLM call hook.
Args:
context: Context object with executor, messages, agent, task, etc.
Messages can be modified in-place.
Returns:
False to block LLM execution, True or None to allow execution
"""
...
class AfterLLMCallHook(Hook["LLMCallHookContext", str | None], Protocol):
"""Protocol for after_llm_call hooks.
These hooks are called after an LLM returns a response and can modify
the response or the message history.
"""
def __call__(self, context: LLMCallHookContext) -> str | None:
"""Execute the after LLM call hook.
Args:
context: Context object with executor, messages, agent, task, response, etc.
Messages can be modified in-place. Response is available in context.response.
Returns:
Modified response string, or None to keep the original response
"""
...
class BeforeToolCallHook(Hook["ToolCallHookContext", bool | None], Protocol):
"""Protocol for before_tool_call hooks.
These hooks are called before a tool is executed and can modify the tool
input or block the execution entirely.
"""
def __call__(self, context: ToolCallHookContext) -> bool | None:
"""Execute the before tool call hook.
Args:
context: Context object with tool_name, tool_input, tool, agent, task, etc.
Tool input can be modified in-place.
Returns:
False to block tool execution, True or None to allow execution
"""
...
class AfterToolCallHook(Hook["ToolCallHookContext", str | None], Protocol):
"""Protocol for after_tool_call hooks.
These hooks are called after a tool executes and can modify the result.
"""
def __call__(self, context: ToolCallHookContext) -> str | None:
"""Execute the after tool call hook.
Args:
context: Context object with tool_name, tool_input, tool_result, etc.
Tool result is available in context.tool_result.
Returns:
Modified tool result string, or None to keep the original result
"""
...
# - All before hooks: bool | None (False = block execution, True/None = allow)
# - All after hooks: str | None (str = modified result, None = keep original)
BeforeLLMCallHookType = Hook["LLMCallHookContext", bool | None]
AfterLLMCallHookType = Hook["LLMCallHookContext", str | None]
BeforeToolCallHookType = Hook["ToolCallHookContext", bool | None]
AfterToolCallHookType = Hook["ToolCallHookContext", str | None]
# Alternative Callable-based type aliases for compatibility
BeforeLLMCallHookCallable = Callable[["LLMCallHookContext"], bool | None]
AfterLLMCallHookCallable = Callable[["LLMCallHookContext"], str | None]
BeforeToolCallHookCallable = Callable[["ToolCallHookContext"], bool | None]
AfterToolCallHookCallable = Callable[["ToolCallHookContext"], str | None]

View File

@@ -0,0 +1,157 @@
from __future__ import annotations
from collections.abc import Callable
from typing import TYPE_CHECKING, Any, TypeVar
if TYPE_CHECKING:
from crewai.hooks.llm_hooks import LLMCallHookContext
from crewai.hooks.tool_hooks import ToolCallHookContext
P = TypeVar("P")
R = TypeVar("R")
def _copy_method_metadata(wrapper: Any, original: Callable[..., Any]) -> None:
"""Copy metadata from original function to wrapper.
Args:
wrapper: The wrapper object to copy metadata to
original: The original function to copy from
"""
wrapper.__name__ = original.__name__
wrapper.__doc__ = original.__doc__
wrapper.__module__ = original.__module__
wrapper.__qualname__ = original.__qualname__
wrapper.__annotations__ = original.__annotations__
class BeforeLLMCallHookMethod:
"""Wrapper for methods marked as before_llm_call hooks within @CrewBase classes.
This wrapper marks a method so it can be detected and registered as a
crew-scoped hook during crew initialization.
"""
is_before_llm_call_hook: bool = True
def __init__(
self,
meth: Callable[[Any, LLMCallHookContext], None],
agents: list[str] | None = None,
) -> None:
"""Initialize the hook method wrapper.
Args:
meth: The method to wrap
agents: Optional list of agent roles to filter
"""
self._meth = meth
self.agents = agents
_copy_method_metadata(self, meth)
def __call__(self, *args: Any, **kwargs: Any) -> None:
"""Call the wrapped method.
Args:
*args: Positional arguments
**kwargs: Keyword arguments
"""
return self._meth(*args, **kwargs)
def __get__(self, obj: Any, objtype: type[Any] | None = None) -> Any:
"""Support instance methods by implementing descriptor protocol.
Args:
obj: The instance that the method is accessed through
objtype: The type of the instance
Returns:
Self when accessed through class, bound method when accessed through instance
"""
if obj is None:
return self
# Return bound method
return lambda context: self._meth(obj, context)
class AfterLLMCallHookMethod:
"""Wrapper for methods marked as after_llm_call hooks within @CrewBase classes."""
is_after_llm_call_hook: bool = True
def __init__(
self,
meth: Callable[[Any, LLMCallHookContext], str | None],
agents: list[str] | None = None,
) -> None:
"""Initialize the hook method wrapper."""
self._meth = meth
self.agents = agents
_copy_method_metadata(self, meth)
def __call__(self, *args: Any, **kwargs: Any) -> str | None:
"""Call the wrapped method."""
return self._meth(*args, **kwargs)
def __get__(self, obj: Any, objtype: type[Any] | None = None) -> Any:
"""Support instance methods."""
if obj is None:
return self
return lambda context: self._meth(obj, context)
class BeforeToolCallHookMethod:
"""Wrapper for methods marked as before_tool_call hooks within @CrewBase classes."""
is_before_tool_call_hook: bool = True
def __init__(
self,
meth: Callable[[Any, ToolCallHookContext], bool | None],
tools: list[str] | None = None,
agents: list[str] | None = None,
) -> None:
"""Initialize the hook method wrapper."""
self._meth = meth
self.tools = tools
self.agents = agents
_copy_method_metadata(self, meth)
def __call__(self, *args: Any, **kwargs: Any) -> bool | None:
"""Call the wrapped method."""
return self._meth(*args, **kwargs)
def __get__(self, obj: Any, objtype: type[Any] | None = None) -> Any:
"""Support instance methods."""
if obj is None:
return self
return lambda context: self._meth(obj, context)
class AfterToolCallHookMethod:
"""Wrapper for methods marked as after_tool_call hooks within @CrewBase classes."""
is_after_tool_call_hook: bool = True
def __init__(
self,
meth: Callable[[Any, ToolCallHookContext], str | None],
tools: list[str] | None = None,
agents: list[str] | None = None,
) -> None:
"""Initialize the hook method wrapper."""
self._meth = meth
self.tools = tools
self.agents = agents
_copy_method_metadata(self, meth)
def __call__(self, *args: Any, **kwargs: Any) -> str | None:
"""Call the wrapped method."""
return self._meth(*args, **kwargs)
def __get__(self, obj: Any, objtype: type[Any] | None = None) -> Any:
"""Support instance methods."""
if obj is None:
return self
return lambda context: self._meth(obj, context)

View File

@@ -358,6 +358,7 @@ class LiteAgent(FlowTrackable, BaseModel):
pydantic=formatted_result,
agent_role=self.role,
usage_metrics=usage_metrics.model_dump() if usage_metrics else None,
messages=self._messages,
)
# Process guardrail if set
@@ -541,6 +542,7 @@ class LiteAgent(FlowTrackable, BaseModel):
agent_key=self.key,
agent_role=self.role,
agent=self.original_agent,
crew=None,
)
except Exception as e:
raise e

View File

@@ -6,6 +6,8 @@ from typing import Any
from pydantic import BaseModel, Field
from crewai.utilities.types import LLMMessage
class LiteAgentOutput(BaseModel):
"""Class that represents the result of a LiteAgent execution."""
@@ -20,6 +22,7 @@ class LiteAgentOutput(BaseModel):
usage_metrics: dict[str, Any] | None = Field(
description="Token usage metrics for this execution", default=None
)
messages: list[LLMMessage] = Field(description="Messages of the agent", default=[])
def to_dict(self) -> dict[str, Any]:
"""Convert pydantic_output to a dictionary."""

View File

@@ -38,6 +38,13 @@ from crewai.events.types.tool_usage_events import (
ToolUsageStartedEvent,
)
from crewai.llms.base_llm import BaseLLM
from crewai.llms.constants import (
ANTHROPIC_MODELS,
AZURE_MODELS,
BEDROCK_MODELS,
GEMINI_MODELS,
OPENAI_MODELS,
)
from crewai.utilities import InternalInstructor
from crewai.utilities.exceptions.context_window_exceeding_exception import (
LLMContextLengthExceededError,
@@ -323,18 +330,64 @@ class LLM(BaseLLM):
completion_cost: float | None = None
def __new__(cls, model: str, is_litellm: bool = False, **kwargs: Any) -> LLM:
"""Factory method that routes to native SDK or falls back to LiteLLM."""
"""Factory method that routes to native SDK or falls back to LiteLLM.
Routing priority:
1. If 'provider' kwarg is present, use that provider with constants
2. If only 'model' kwarg, use constants to infer provider
3. If "/" in model name:
- Check if prefix is a native provider (openai/anthropic/azure/bedrock/gemini)
- If yes, validate model against constants
- If valid, route to native SDK; otherwise route to LiteLLM
"""
if not model or not isinstance(model, str):
raise ValueError("Model must be a non-empty string")
provider = model.partition("/")[0] if "/" in model else "openai"
explicit_provider = kwargs.get("provider")
native_class = cls._get_native_provider(provider)
if explicit_provider:
provider = explicit_provider
use_native = True
model_string = model
elif "/" in model:
prefix, _, model_part = model.partition("/")
provider_mapping = {
"openai": "openai",
"anthropic": "anthropic",
"claude": "anthropic",
"azure": "azure",
"azure_openai": "azure",
"google": "gemini",
"gemini": "gemini",
"bedrock": "bedrock",
"aws": "bedrock",
}
canonical_provider = provider_mapping.get(prefix.lower())
if canonical_provider and cls._validate_model_in_constants(
model_part, canonical_provider
):
provider = canonical_provider
use_native = True
model_string = model_part
else:
provider = prefix
use_native = False
model_string = model_part
else:
provider = cls._infer_provider_from_model(model)
use_native = True
model_string = model
native_class = cls._get_native_provider(provider) if use_native else None
if native_class and not is_litellm and provider in SUPPORTED_NATIVE_PROVIDERS:
try:
model_string = model.partition("/")[2] if "/" in model else model
# Remove 'provider' from kwargs if it exists to avoid duplicate keyword argument
kwargs_copy = {k: v for k, v in kwargs.items() if k != 'provider'}
return cast(
Self, native_class(model=model_string, provider=provider, **kwargs)
Self, native_class(model=model_string, provider=provider, **kwargs_copy)
)
except NotImplementedError:
raise
@@ -351,6 +404,63 @@ class LLM(BaseLLM):
instance.is_litellm = True
return instance
@classmethod
def _validate_model_in_constants(cls, model: str, provider: str) -> bool:
"""Validate if a model name exists in the provider's constants.
Args:
model: The model name to validate
provider: The provider to check against (canonical name)
Returns:
True if the model exists in the provider's constants, False otherwise
"""
if provider == "openai":
return model in OPENAI_MODELS
if provider == "anthropic" or provider == "claude":
return model in ANTHROPIC_MODELS
if provider == "gemini":
return model in GEMINI_MODELS
if provider == "bedrock":
return model in BEDROCK_MODELS
if provider == "azure":
# azure does not provide a list of available models, determine a better way to handle this
return True
return False
@classmethod
def _infer_provider_from_model(cls, model: str) -> str:
"""Infer the provider from the model name.
Args:
model: The model name without provider prefix
Returns:
The inferred provider name, defaults to "openai"
"""
if model in OPENAI_MODELS:
return "openai"
if model in ANTHROPIC_MODELS:
return "anthropic"
if model in GEMINI_MODELS:
return "gemini"
if model in BEDROCK_MODELS:
return "bedrock"
if model in AZURE_MODELS:
return "azure"
return "openai"
@classmethod
def _get_native_provider(cls, provider: str) -> type | None:
"""Get native provider class if available."""

View File

@@ -0,0 +1,558 @@
from typing import Literal, TypeAlias
OpenAIModels: TypeAlias = Literal[
"gpt-3.5-turbo",
"gpt-3.5-turbo-0125",
"gpt-3.5-turbo-0301",
"gpt-3.5-turbo-0613",
"gpt-3.5-turbo-1106",
"gpt-3.5-turbo-16k",
"gpt-3.5-turbo-16k-0613",
"gpt-3.5-turbo-instruct",
"gpt-3.5-turbo-instruct-0914",
"gpt-4",
"gpt-4-0125-preview",
"gpt-4-0314",
"gpt-4-0613",
"gpt-4-1106-preview",
"gpt-4-32k",
"gpt-4-32k-0314",
"gpt-4-32k-0613",
"gpt-4-turbo",
"gpt-4-turbo-2024-04-09",
"gpt-4-turbo-preview",
"gpt-4-vision-preview",
"gpt-4.1",
"gpt-4.1-2025-04-14",
"gpt-4.1-mini",
"gpt-4.1-mini-2025-04-14",
"gpt-4.1-nano",
"gpt-4.1-nano-2025-04-14",
"gpt-4o",
"gpt-4o-2024-05-13",
"gpt-4o-2024-08-06",
"gpt-4o-2024-11-20",
"gpt-4o-audio-preview",
"gpt-4o-audio-preview-2024-10-01",
"gpt-4o-audio-preview-2024-12-17",
"gpt-4o-audio-preview-2025-06-03",
"gpt-4o-mini",
"gpt-4o-mini-2024-07-18",
"gpt-4o-mini-audio-preview",
"gpt-4o-mini-audio-preview-2024-12-17",
"gpt-4o-mini-realtime-preview",
"gpt-4o-mini-realtime-preview-2024-12-17",
"gpt-4o-mini-search-preview",
"gpt-4o-mini-search-preview-2025-03-11",
"gpt-4o-mini-transcribe",
"gpt-4o-mini-tts",
"gpt-4o-realtime-preview",
"gpt-4o-realtime-preview-2024-10-01",
"gpt-4o-realtime-preview-2024-12-17",
"gpt-4o-realtime-preview-2025-06-03",
"gpt-4o-search-preview",
"gpt-4o-search-preview-2025-03-11",
"gpt-4o-transcribe",
"gpt-4o-transcribe-diarize",
"gpt-5",
"gpt-5-2025-08-07",
"gpt-5-chat",
"gpt-5-chat-latest",
"gpt-5-codex",
"gpt-5-mini",
"gpt-5-mini-2025-08-07",
"gpt-5-nano",
"gpt-5-nano-2025-08-07",
"gpt-5-pro",
"gpt-5-pro-2025-10-06",
"gpt-5-search-api",
"gpt-5-search-api-2025-10-14",
"gpt-audio",
"gpt-audio-2025-08-28",
"gpt-audio-mini",
"gpt-audio-mini-2025-10-06",
"gpt-image-1",
"gpt-image-1-mini",
"gpt-realtime",
"gpt-realtime-2025-08-28",
"gpt-realtime-mini",
"gpt-realtime-mini-2025-10-06",
"o1",
"o1-preview",
"o1-2024-12-17",
"o1-mini",
"o1-mini-2024-09-12",
"o1-pro",
"o1-pro-2025-03-19",
"o3-mini",
"o3",
"o4-mini",
"whisper-1",
]
OPENAI_MODELS: list[OpenAIModels] = [
"gpt-3.5-turbo",
"gpt-3.5-turbo-0125",
"gpt-3.5-turbo-0301",
"gpt-3.5-turbo-0613",
"gpt-3.5-turbo-1106",
"gpt-3.5-turbo-16k",
"gpt-3.5-turbo-16k-0613",
"gpt-3.5-turbo-instruct",
"gpt-3.5-turbo-instruct-0914",
"gpt-4",
"gpt-4-0125-preview",
"gpt-4-0314",
"gpt-4-0613",
"gpt-4-1106-preview",
"gpt-4-32k",
"gpt-4-32k-0314",
"gpt-4-32k-0613",
"gpt-4-turbo",
"gpt-4-turbo-2024-04-09",
"gpt-4-turbo-preview",
"gpt-4-vision-preview",
"gpt-4.1",
"gpt-4.1-2025-04-14",
"gpt-4.1-mini",
"gpt-4.1-mini-2025-04-14",
"gpt-4.1-nano",
"gpt-4.1-nano-2025-04-14",
"gpt-4o",
"gpt-4o-2024-05-13",
"gpt-4o-2024-08-06",
"gpt-4o-2024-11-20",
"gpt-4o-audio-preview",
"gpt-4o-audio-preview-2024-10-01",
"gpt-4o-audio-preview-2024-12-17",
"gpt-4o-audio-preview-2025-06-03",
"gpt-4o-mini",
"gpt-4o-mini-2024-07-18",
"gpt-4o-mini-audio-preview",
"gpt-4o-mini-audio-preview-2024-12-17",
"gpt-4o-mini-realtime-preview",
"gpt-4o-mini-realtime-preview-2024-12-17",
"gpt-4o-mini-search-preview",
"gpt-4o-mini-search-preview-2025-03-11",
"gpt-4o-mini-transcribe",
"gpt-4o-mini-tts",
"gpt-4o-realtime-preview",
"gpt-4o-realtime-preview-2024-10-01",
"gpt-4o-realtime-preview-2024-12-17",
"gpt-4o-realtime-preview-2025-06-03",
"gpt-4o-search-preview",
"gpt-4o-search-preview-2025-03-11",
"gpt-4o-transcribe",
"gpt-4o-transcribe-diarize",
"gpt-5",
"gpt-5-2025-08-07",
"gpt-5-chat",
"gpt-5-chat-latest",
"gpt-5-codex",
"gpt-5-mini",
"gpt-5-mini-2025-08-07",
"gpt-5-nano",
"gpt-5-nano-2025-08-07",
"gpt-5-pro",
"gpt-5-pro-2025-10-06",
"gpt-5-search-api",
"gpt-5-search-api-2025-10-14",
"gpt-audio",
"gpt-audio-2025-08-28",
"gpt-audio-mini",
"gpt-audio-mini-2025-10-06",
"gpt-image-1",
"gpt-image-1-mini",
"gpt-realtime",
"gpt-realtime-2025-08-28",
"gpt-realtime-mini",
"gpt-realtime-mini-2025-10-06",
"o1",
"o1-preview",
"o1-2024-12-17",
"o1-mini",
"o1-mini-2024-09-12",
"o1-pro",
"o1-pro-2025-03-19",
"o3-mini",
"o3",
"o4-mini",
"whisper-1",
]
AnthropicModels: TypeAlias = Literal[
"claude-3-7-sonnet-latest",
"claude-3-7-sonnet-20250219",
"claude-3-5-haiku-latest",
"claude-3-5-haiku-20241022",
"claude-haiku-4-5",
"claude-haiku-4-5-20251001",
"claude-sonnet-4-20250514",
"claude-sonnet-4-0",
"claude-4-sonnet-20250514",
"claude-sonnet-4-5",
"claude-sonnet-4-5-20250929",
"claude-3-5-sonnet-latest",
"claude-3-5-sonnet-20241022",
"claude-3-5-sonnet-20240620",
"claude-opus-4-0",
"claude-opus-4-20250514",
"claude-4-opus-20250514",
"claude-opus-4-1",
"claude-opus-4-1-20250805",
"claude-3-opus-latest",
"claude-3-opus-20240229",
"claude-3-sonnet-20240229",
"claude-3-haiku-latest",
"claude-3-haiku-20240307",
]
ANTHROPIC_MODELS: list[AnthropicModels] = [
"claude-3-7-sonnet-latest",
"claude-3-7-sonnet-20250219",
"claude-3-5-haiku-latest",
"claude-3-5-haiku-20241022",
"claude-haiku-4-5",
"claude-haiku-4-5-20251001",
"claude-sonnet-4-20250514",
"claude-sonnet-4-0",
"claude-4-sonnet-20250514",
"claude-sonnet-4-5",
"claude-sonnet-4-5-20250929",
"claude-3-5-sonnet-latest",
"claude-3-5-sonnet-20241022",
"claude-3-5-sonnet-20240620",
"claude-opus-4-0",
"claude-opus-4-20250514",
"claude-4-opus-20250514",
"claude-opus-4-1",
"claude-opus-4-1-20250805",
"claude-3-opus-latest",
"claude-3-opus-20240229",
"claude-3-sonnet-20240229",
"claude-3-haiku-latest",
"claude-3-haiku-20240307",
]
GeminiModels: TypeAlias = Literal[
"gemini-2.5-pro",
"gemini-2.5-pro-preview-03-25",
"gemini-2.5-pro-preview-05-06",
"gemini-2.5-pro-preview-06-05",
"gemini-2.5-flash",
"gemini-2.5-flash-preview-05-20",
"gemini-2.5-flash-preview-04-17",
"gemini-2.5-flash-image",
"gemini-2.5-flash-image-preview",
"gemini-2.5-flash-lite",
"gemini-2.5-flash-lite-preview-06-17",
"gemini-2.5-flash-preview-09-2025",
"gemini-2.5-flash-lite-preview-09-2025",
"gemini-2.5-flash-preview-tts",
"gemini-2.5-pro-preview-tts",
"gemini-2.5-computer-use-preview-10-2025",
"gemini-2.0-flash",
"gemini-2.0-flash-001",
"gemini-2.0-flash-exp",
"gemini-2.0-flash-exp-image-generation",
"gemini-2.0-flash-lite",
"gemini-2.0-flash-lite-001",
"gemini-2.0-flash-lite-preview",
"gemini-2.0-flash-lite-preview-02-05",
"gemini-2.0-flash-preview-image-generation",
"gemini-2.0-flash-thinking-exp",
"gemini-2.0-flash-thinking-exp-01-21",
"gemini-2.0-flash-thinking-exp-1219",
"gemini-2.0-pro-exp",
"gemini-2.0-pro-exp-02-05",
"gemini-exp-1206",
"gemini-1.5-pro",
"gemini-1.5-flash",
"gemini-1.5-flash-8b",
"gemini-flash-latest",
"gemini-flash-lite-latest",
"gemini-pro-latest",
"gemini-2.0-flash-live-001",
"gemini-live-2.5-flash-preview",
"gemini-2.5-flash-live-preview",
"gemini-robotics-er-1.5-preview",
"gemini-gemma-2-27b-it",
"gemini-gemma-2-9b-it",
"gemma-3-1b-it",
"gemma-3-4b-it",
"gemma-3-12b-it",
"gemma-3-27b-it",
"gemma-3n-e2b-it",
"gemma-3n-e4b-it",
"learnlm-2.0-flash-experimental",
]
GEMINI_MODELS: list[GeminiModels] = [
"gemini-2.5-pro",
"gemini-2.5-pro-preview-03-25",
"gemini-2.5-pro-preview-05-06",
"gemini-2.5-pro-preview-06-05",
"gemini-2.5-flash",
"gemini-2.5-flash-preview-05-20",
"gemini-2.5-flash-preview-04-17",
"gemini-2.5-flash-image",
"gemini-2.5-flash-image-preview",
"gemini-2.5-flash-lite",
"gemini-2.5-flash-lite-preview-06-17",
"gemini-2.5-flash-preview-09-2025",
"gemini-2.5-flash-lite-preview-09-2025",
"gemini-2.5-flash-preview-tts",
"gemini-2.5-pro-preview-tts",
"gemini-2.5-computer-use-preview-10-2025",
"gemini-2.0-flash",
"gemini-2.0-flash-001",
"gemini-2.0-flash-exp",
"gemini-2.0-flash-exp-image-generation",
"gemini-2.0-flash-lite",
"gemini-2.0-flash-lite-001",
"gemini-2.0-flash-lite-preview",
"gemini-2.0-flash-lite-preview-02-05",
"gemini-2.0-flash-preview-image-generation",
"gemini-2.0-flash-thinking-exp",
"gemini-2.0-flash-thinking-exp-01-21",
"gemini-2.0-flash-thinking-exp-1219",
"gemini-2.0-pro-exp",
"gemini-2.0-pro-exp-02-05",
"gemini-exp-1206",
"gemini-1.5-pro",
"gemini-1.5-flash",
"gemini-1.5-flash-8b",
"gemini-flash-latest",
"gemini-flash-lite-latest",
"gemini-pro-latest",
"gemini-2.0-flash-live-001",
"gemini-live-2.5-flash-preview",
"gemini-2.5-flash-live-preview",
"gemini-robotics-er-1.5-preview",
"gemini-gemma-2-27b-it",
"gemini-gemma-2-9b-it",
"gemma-3-1b-it",
"gemma-3-4b-it",
"gemma-3-12b-it",
"gemma-3-27b-it",
"gemma-3n-e2b-it",
"gemma-3n-e4b-it",
"learnlm-2.0-flash-experimental",
]
AzureModels: TypeAlias = Literal[
"gpt-3.5-turbo",
"gpt-3.5-turbo-0301",
"gpt-3.5-turbo-0613",
"gpt-3.5-turbo-16k",
"gpt-3.5-turbo-16k-0613",
"gpt-35-turbo",
"gpt-35-turbo-0125",
"gpt-35-turbo-1106",
"gpt-35-turbo-16k-0613",
"gpt-35-turbo-instruct-0914",
"gpt-4",
"gpt-4-0314",
"gpt-4-0613",
"gpt-4-1106-preview",
"gpt-4-0125-preview",
"gpt-4-32k",
"gpt-4-32k-0314",
"gpt-4-32k-0613",
"gpt-4-turbo",
"gpt-4-turbo-2024-04-09",
"gpt-4-vision",
"gpt-4o",
"gpt-4o-2024-05-13",
"gpt-4o-2024-08-06",
"gpt-4o-2024-11-20",
"gpt-4o-mini",
"gpt-5",
"o1",
"o1-mini",
"o1-preview",
"o3-mini",
"o3",
"o4-mini",
]
AZURE_MODELS: list[AzureModels] = [
"gpt-3.5-turbo",
"gpt-3.5-turbo-0301",
"gpt-3.5-turbo-0613",
"gpt-3.5-turbo-16k",
"gpt-3.5-turbo-16k-0613",
"gpt-35-turbo",
"gpt-35-turbo-0125",
"gpt-35-turbo-1106",
"gpt-35-turbo-16k-0613",
"gpt-35-turbo-instruct-0914",
"gpt-4",
"gpt-4-0314",
"gpt-4-0613",
"gpt-4-1106-preview",
"gpt-4-0125-preview",
"gpt-4-32k",
"gpt-4-32k-0314",
"gpt-4-32k-0613",
"gpt-4-turbo",
"gpt-4-turbo-2024-04-09",
"gpt-4-vision",
"gpt-4o",
"gpt-4o-2024-05-13",
"gpt-4o-2024-08-06",
"gpt-4o-2024-11-20",
"gpt-4o-mini",
"gpt-5",
"o1",
"o1-mini",
"o1-preview",
"o3-mini",
"o3",
"o4-mini",
]
BedrockModels: TypeAlias = Literal[
"ai21.jamba-1-5-large-v1:0",
"ai21.jamba-1-5-mini-v1:0",
"amazon.nova-lite-v1:0",
"amazon.nova-lite-v1:0:24k",
"amazon.nova-lite-v1:0:300k",
"amazon.nova-micro-v1:0",
"amazon.nova-micro-v1:0:128k",
"amazon.nova-micro-v1:0:24k",
"amazon.nova-premier-v1:0",
"amazon.nova-premier-v1:0:1000k",
"amazon.nova-premier-v1:0:20k",
"amazon.nova-premier-v1:0:8k",
"amazon.nova-premier-v1:0:mm",
"amazon.nova-pro-v1:0",
"amazon.nova-pro-v1:0:24k",
"amazon.nova-pro-v1:0:300k",
"amazon.titan-text-express-v1",
"amazon.titan-text-express-v1:0:8k",
"amazon.titan-text-lite-v1",
"amazon.titan-text-lite-v1:0:4k",
"amazon.titan-tg1-large",
"anthropic.claude-3-5-haiku-20241022-v1:0",
"anthropic.claude-3-5-sonnet-20240620-v1:0",
"anthropic.claude-3-5-sonnet-20241022-v2:0",
"anthropic.claude-3-7-sonnet-20250219-v1:0",
"anthropic.claude-3-haiku-20240307-v1:0",
"anthropic.claude-3-haiku-20240307-v1:0:200k",
"anthropic.claude-3-haiku-20240307-v1:0:48k",
"anthropic.claude-3-opus-20240229-v1:0",
"anthropic.claude-3-opus-20240229-v1:0:12k",
"anthropic.claude-3-opus-20240229-v1:0:200k",
"anthropic.claude-3-opus-20240229-v1:0:28k",
"anthropic.claude-3-sonnet-20240229-v1:0",
"anthropic.claude-3-sonnet-20240229-v1:0:200k",
"anthropic.claude-3-sonnet-20240229-v1:0:28k",
"anthropic.claude-haiku-4-5-20251001-v1:0",
"anthropic.claude-instant-v1:2:100k",
"anthropic.claude-opus-4-1-20250805-v1:0",
"anthropic.claude-opus-4-20250514-v1:0",
"anthropic.claude-sonnet-4-20250514-v1:0",
"anthropic.claude-sonnet-4-5-20250929-v1:0",
"anthropic.claude-v2:0:100k",
"anthropic.claude-v2:0:18k",
"anthropic.claude-v2:1:18k",
"anthropic.claude-v2:1:200k",
"cohere.command-r-plus-v1:0",
"cohere.command-r-v1:0",
"cohere.rerank-v3-5:0",
"deepseek.r1-v1:0",
"meta.llama3-1-70b-instruct-v1:0",
"meta.llama3-1-8b-instruct-v1:0",
"meta.llama3-2-11b-instruct-v1:0",
"meta.llama3-2-1b-instruct-v1:0",
"meta.llama3-2-3b-instruct-v1:0",
"meta.llama3-2-90b-instruct-v1:0",
"meta.llama3-3-70b-instruct-v1:0",
"meta.llama3-70b-instruct-v1:0",
"meta.llama3-8b-instruct-v1:0",
"meta.llama4-maverick-17b-instruct-v1:0",
"meta.llama4-scout-17b-instruct-v1:0",
"mistral.mistral-7b-instruct-v0:2",
"mistral.mistral-large-2402-v1:0",
"mistral.mistral-small-2402-v1:0",
"mistral.mixtral-8x7b-instruct-v0:1",
"mistral.pixtral-large-2502-v1:0",
"openai.gpt-oss-120b-1:0",
"openai.gpt-oss-20b-1:0",
"qwen.qwen3-32b-v1:0",
"qwen.qwen3-coder-30b-a3b-v1:0",
"twelvelabs.pegasus-1-2-v1:0",
]
BEDROCK_MODELS: list[BedrockModels] = [
"ai21.jamba-1-5-large-v1:0",
"ai21.jamba-1-5-mini-v1:0",
"amazon.nova-lite-v1:0",
"amazon.nova-lite-v1:0:24k",
"amazon.nova-lite-v1:0:300k",
"amazon.nova-micro-v1:0",
"amazon.nova-micro-v1:0:128k",
"amazon.nova-micro-v1:0:24k",
"amazon.nova-premier-v1:0",
"amazon.nova-premier-v1:0:1000k",
"amazon.nova-premier-v1:0:20k",
"amazon.nova-premier-v1:0:8k",
"amazon.nova-premier-v1:0:mm",
"amazon.nova-pro-v1:0",
"amazon.nova-pro-v1:0:24k",
"amazon.nova-pro-v1:0:300k",
"amazon.titan-text-express-v1",
"amazon.titan-text-express-v1:0:8k",
"amazon.titan-text-lite-v1",
"amazon.titan-text-lite-v1:0:4k",
"amazon.titan-tg1-large",
"anthropic.claude-3-5-haiku-20241022-v1:0",
"anthropic.claude-3-5-sonnet-20240620-v1:0",
"anthropic.claude-3-5-sonnet-20241022-v2:0",
"anthropic.claude-3-7-sonnet-20250219-v1:0",
"anthropic.claude-3-haiku-20240307-v1:0",
"anthropic.claude-3-haiku-20240307-v1:0:200k",
"anthropic.claude-3-haiku-20240307-v1:0:48k",
"anthropic.claude-3-opus-20240229-v1:0",
"anthropic.claude-3-opus-20240229-v1:0:12k",
"anthropic.claude-3-opus-20240229-v1:0:200k",
"anthropic.claude-3-opus-20240229-v1:0:28k",
"anthropic.claude-3-sonnet-20240229-v1:0",
"anthropic.claude-3-sonnet-20240229-v1:0:200k",
"anthropic.claude-3-sonnet-20240229-v1:0:28k",
"anthropic.claude-haiku-4-5-20251001-v1:0",
"anthropic.claude-instant-v1:2:100k",
"anthropic.claude-opus-4-1-20250805-v1:0",
"anthropic.claude-opus-4-20250514-v1:0",
"anthropic.claude-sonnet-4-20250514-v1:0",
"anthropic.claude-sonnet-4-5-20250929-v1:0",
"anthropic.claude-v2:0:100k",
"anthropic.claude-v2:0:18k",
"anthropic.claude-v2:1:18k",
"anthropic.claude-v2:1:200k",
"cohere.command-r-plus-v1:0",
"cohere.command-r-v1:0",
"cohere.rerank-v3-5:0",
"deepseek.r1-v1:0",
"meta.llama3-1-70b-instruct-v1:0",
"meta.llama3-1-8b-instruct-v1:0",
"meta.llama3-2-11b-instruct-v1:0",
"meta.llama3-2-1b-instruct-v1:0",
"meta.llama3-2-3b-instruct-v1:0",
"meta.llama3-2-90b-instruct-v1:0",
"meta.llama3-3-70b-instruct-v1:0",
"meta.llama3-70b-instruct-v1:0",
"meta.llama3-8b-instruct-v1:0",
"meta.llama4-maverick-17b-instruct-v1:0",
"meta.llama4-scout-17b-instruct-v1:0",
"mistral.mistral-7b-instruct-v0:2",
"mistral.mistral-large-2402-v1:0",
"mistral.mistral-small-2402-v1:0",
"mistral.mixtral-8x7b-instruct-v0:1",
"mistral.pixtral-large-2502-v1:0",
"openai.gpt-oss-120b-1:0",
"openai.gpt-oss-20b-1:0",
"qwen.qwen3-32b-v1:0",
"qwen.qwen3-coder-30b-a3b-v1:0",
"twelvelabs.pegasus-1-2-v1:0",
]

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