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Author SHA1 Message Date
devin-ai-integration[bot]
4469461b38 fix: Include agent knowledge in planning process (#1818)
* test: Add test demonstrating knowledge not included in planning process

Issue #1703: Add test to verify that agent knowledge sources are not currently
included in the planning process. This test will help validate the fix once
implemented.

- Creates agent with knowledge sources
- Verifies knowledge context missing from planning
- Checks other expected components are present

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: Include agent knowledge in planning process

Issue #1703: Integrate agent knowledge sources into planning summaries
- Add agent_knowledge field to task summaries in planning_handler
- Update test to verify knowledge inclusion
- Ensure knowledge context is available during planning phase

The planning agent now has access to agent knowledge when creating
task execution plans, allowing for better informed planning decisions.

Co-Authored-By: Joe Moura <joao@crewai.com>

* style: Fix import sorting in test_knowledge_planning.py

- Reorganize imports according to ruff linting rules
- Fix I001 linting error

Co-Authored-By: Joe Moura <joao@crewai.com>

* test: Update task summary assertions to include knowledge field

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: Update ChromaDB mock path and fix knowledge string formatting

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: Improve knowledge integration in planning process with error handling

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: Update task summary format for empty tools and knowledge

- Change empty tools message to 'agent has no tools'
- Remove agent_knowledge field when empty
- Update test assertions to match new format
- Improve test messages for clarity

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: Update string formatting for agent tools in task summary

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: Update string formatting for agent tools in task summary

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: Update string formatting for agent tools and knowledge in task summary

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: Update knowledge field formatting in task summary

Co-Authored-By: Joe Moura <joao@crewai.com>

* style: Fix import sorting in test_planning_handler.py

Co-Authored-By: Joe Moura <joao@crewai.com>

* style: Fix import sorting order in test_planning_handler.py

Co-Authored-By: Joe Moura <joao@crewai.com>

* test: Add ChromaDB mocking to test_create_tasks_summary_with_knowledge_and_tools

Co-Authored-By: Joe Moura <joao@crewai.com>

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Joe Moura <joao@crewai.com>
Co-authored-by: João Moura <joaomdmoura@gmail.com>
2024-12-31 01:56:38 -03:00
Marco Vinciguerra
a548463fae feat: add docstring (#1819)
Co-authored-by: João Moura <joaomdmoura@gmail.com>
2024-12-31 01:51:43 -03:00
devin-ai-integration[bot]
45b802a625 Docstring, Error Handling, and Type Hints Improvements (#1828)
* docs: add comprehensive docstrings to Flow class and methods

- Added NumPy-style docstrings to all decorator functions
- Added detailed documentation to Flow class methods
- Included parameter types, return types, and examples
- Enhanced documentation clarity and completeness

Co-Authored-By: Joe Moura <joao@crewai.com>

* feat: add secure path handling utilities

- Add path_utils.py with safe path handling functions
- Implement path validation and security checks
- Integrate secure path handling in flow_visualizer.py
- Add path validation in html_template_handler.py
- Add comprehensive error handling for path operations

Co-Authored-By: Joe Moura <joao@crewai.com>

* docs: add comprehensive docstrings and type hints to flow utils (#1819)

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: add type annotations and fix import sorting

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: add type annotations to flow utils and visualization utils

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: resolve import sorting and type annotation issues

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: properly initialize and update edge_smooth variable

Co-Authored-By: Joe Moura <joao@crewai.com>

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Joe Moura <joao@crewai.com>
2024-12-31 01:39:19 -03:00
devin-ai-integration[bot]
ba0965ef87 fix: add tiktoken as explicit dependency and document Rust requirement (#1826)
* feat: add tiktoken as explicit dependency and document Rust requirement

- Add tiktoken>=0.8.0 as explicit dependency to ensure pre-built wheels are used
- Document Rust compiler requirement as fallback in README.md
- Addresses issue #1824 tiktoken build failure

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: adjust tiktoken version to ~=0.7.0 for dependency compatibility

- Update tiktoken dependency to ~=0.7.0 to resolve conflict with embedchain
- Maintain compatibility with crewai-tools dependency chain
- Addresses CI build failures

Co-Authored-By: Joe Moura <joao@crewai.com>

* docs: add troubleshooting section and make tiktoken optional

Co-Authored-By: Joe Moura <joao@crewai.com>

* Update README.md

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Joe Moura <joao@crewai.com>
Co-authored-by: João Moura <joaomdmoura@gmail.com>
2024-12-30 17:10:56 -03:00
devin-ai-integration[bot]
d85898cf29 fix(manager_llm): handle coworker role name case/whitespace properly (#1820)
* fix(manager_llm): handle coworker role name case/whitespace properly

- Add .strip() to agent name and role comparisons in base_agent_tools.py
- Add test case for varied role name cases and whitespace
- Fix issue #1503 with manager LLM delegation

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix(manager_llm): improve error handling and add debug logging

- Add debug logging for better observability
- Add sanitize_agent_name helper method
- Enhance error messages with more context
- Add parameterized tests for edge cases:
  - Embedded quotes
  - Trailing newlines
  - Multiple whitespace
  - Case variations
  - None values
- Improve error handling with specific exceptions

Co-Authored-By: Joe Moura <joao@crewai.com>

* style: fix import sorting in base_agent_tools and test_manager_llm_delegation

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix(manager_llm): improve whitespace normalization in role name matching

Co-Authored-By: Joe Moura <joao@crewai.com>

* style: fix import sorting in base_agent_tools and test_manager_llm_delegation

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix(manager_llm): add error message template for agent tool execution errors

Co-Authored-By: Joe Moura <joao@crewai.com>

* style: fix import sorting in test_manager_llm_delegation.py

Co-Authored-By: Joe Moura <joao@crewai.com>

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Joe Moura <joao@crewai.com>
2024-12-30 16:58:18 -03:00
devin-ai-integration[bot]
73f328860b Fix interpolation for output_file in Task (#1803) (#1814)
* fix: interpolate output_file attribute from YAML

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: add security validation for output_file paths

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: add _original_output_file private attribute to fix type-checker error

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: update interpolate_only to handle None inputs and remove duplicate attribute

Co-Authored-By: Joe Moura <joao@crewai.com>

* fix: improve output_file validation and error messages

Co-Authored-By: Joe Moura <joao@crewai.com>

* test: add end-to-end tests for output_file functionality

Co-Authored-By: Joe Moura <joao@crewai.com>

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Joe Moura <joao@crewai.com>
2024-12-29 01:57:59 -03:00
João Moura
a0c322a535 fixing file paths for knowledge source 2024-12-28 02:05:19 -03:00
devin-ai-integration[bot]
86f58c95de docs: add agent-specific knowledge documentation and examples (#1811)
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Joe Moura <joao@crewai.com>
2024-12-28 01:48:51 -03:00
João Moura
99fe91586d Update README.md 2024-12-28 01:03:33 -03:00
devin-ai-integration[bot]
0c2d23dfe0 docs: update README to highlight Flows (#1809)
* docs: highlight Flows feature in README

Co-Authored-By: Joe Moura <joao@crewai.com>

* docs: enhance README with LangGraph comparison and flows-crews synergy

Co-Authored-By: Joe Moura <joao@crewai.com>

* docs: replace initial Flow example with advanced Flow+Crew example; enhance LangGraph comparison

Co-Authored-By: Joe Moura <joao@crewai.com>

* docs: incorporate key terms and enhance feature descriptions

Co-Authored-By: Joe Moura <joao@crewai.com>

* docs: refine technical language, enhance feature descriptions, fix string interpolation

Co-Authored-By: Joe Moura <joao@crewai.com>

* docs: update README with performance metrics, feature enhancements, and course links

Co-Authored-By: Joe Moura <joao@crewai.com>

* docs: update LangGraph comparison with paragraph and P.S. section

Co-Authored-By: Joe Moura <joao@crewai.com>

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Joe Moura <joao@crewai.com>
2024-12-28 01:00:58 -03:00
22 changed files with 2044 additions and 148 deletions

175
README.md
View File

@@ -4,7 +4,7 @@
# **CrewAI**
🤖 **CrewAI**: Cutting-edge framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks.
🤖 **CrewAI**: Production-grade framework for orchestrating sophisticated AI agent systems. From simple automations to complex real-world applications, CrewAI provides precise control and deep customization. By fostering collaborative intelligence through flexible, production-ready architecture, CrewAI empowers agents to work together seamlessly, tackling complex business challenges with predictable, consistent results.
<h3>
@@ -22,13 +22,17 @@
- [Why CrewAI?](#why-crewai)
- [Getting Started](#getting-started)
- [Key Features](#key-features)
- [Understanding Flows and Crews](#understanding-flows-and-crews)
- [CrewAI vs LangGraph](#how-crewai-compares)
- [Examples](#examples)
- [Quick Tutorial](#quick-tutorial)
- [Write Job Descriptions](#write-job-descriptions)
- [Trip Planner](#trip-planner)
- [Stock Analysis](#stock-analysis)
- [Using Crews and Flows Together](#using-crews-and-flows-together)
- [Connecting Your Crew to a Model](#connecting-your-crew-to-a-model)
- [How CrewAI Compares](#how-crewai-compares)
- [Frequently Asked Questions (FAQ)](#frequently-asked-questions-faq)
- [Contribution](#contribution)
- [Telemetry](#telemetry)
- [License](#license)
@@ -36,10 +40,40 @@
## Why CrewAI?
The power of AI collaboration has too much to offer.
CrewAI is designed to enable AI agents to assume roles, share goals, and operate in a cohesive unit - much like a well-oiled crew. Whether you're building a smart assistant platform, an automated customer service ensemble, or a multi-agent research team, CrewAI provides the backbone for sophisticated multi-agent interactions.
CrewAI is a standalone framework, built from the ground up without dependencies on Langchain or other agent frameworks. It's designed to enable AI agents to assume roles, share goals, and operate in a cohesive unit - much like a well-oiled crew. Whether you're building a smart assistant platform, an automated customer service ensemble, or a multi-agent research team, CrewAI provides the backbone for sophisticated multi-agent interactions.
## Getting Started
### Learning Resources
Learn CrewAI through our comprehensive courses:
- [Multi AI Agent Systems with CrewAI](https://www.deeplearning.ai/short-courses/multi-ai-agent-systems-with-crewai/) - Master the fundamentals of multi-agent systems
- [Practical Multi AI Agents and Advanced Use Cases](https://www.deeplearning.ai/short-courses/practical-multi-ai-agents-and-advanced-use-cases-with-crewai/) - Deep dive into advanced implementations
### Understanding Flows and Crews
CrewAI offers two powerful, complementary approaches that work seamlessly together to build sophisticated AI applications:
1. **Crews**: Teams of AI agents with true autonomy and agency, working together to accomplish complex tasks through role-based collaboration. Crews enable:
- Natural, autonomous decision-making between agents
- Dynamic task delegation and collaboration
- Specialized roles with defined goals and expertise
- Flexible problem-solving approaches
2. **Flows**: Production-ready, event-driven workflows that deliver precise control over complex automations. Flows provide:
- Fine-grained control over execution paths for real-world scenarios
- Secure, consistent state management between tasks
- Clean integration of AI agents with production Python code
- Conditional branching for complex business logic
The true power of CrewAI emerges when combining Crews and Flows. This synergy allows you to:
- Build complex, production-grade applications
- Balance autonomy with precise control
- Handle sophisticated real-world scenarios
- Maintain clean, maintainable code structure
### Getting Started with Installation
To get started with CrewAI, follow these simple steps:
### 1. Installation
@@ -51,7 +85,6 @@ First, install CrewAI:
```shell
pip install crewai
```
If you want to install the 'crewai' package along with its optional features that include additional tools for agents, you can do so by using the following command:
```shell
@@ -59,6 +92,22 @@ pip install 'crewai[tools]'
```
The command above installs the basic package and also adds extra components which require more dependencies to function.
### Troubleshooting Dependencies
If you encounter issues during installation or usage, here are some common solutions:
#### Common Issues
1. **ModuleNotFoundError: No module named 'tiktoken'**
- Install tiktoken explicitly: `pip install 'crewai[embeddings]'`
- If using embedchain or other tools: `pip install 'crewai[tools]'`
2. **Failed building wheel for tiktoken**
- Ensure Rust compiler is installed (see installation steps above)
- For Windows: Verify Visual C++ Build Tools are installed
- Try upgrading pip: `pip install --upgrade pip`
- If issues persist, use a pre-built wheel: `pip install tiktoken --prefer-binary`
### 2. Setting Up Your Crew with the YAML Configuration
To create a new CrewAI project, run the following CLI (Command Line Interface) command:
@@ -264,13 +313,16 @@ In addition to the sequential process, you can use the hierarchical process, whi
## Key Features
- **Role-Based Agent Design**: Customize agents with specific roles, goals, and tools.
- **Autonomous Inter-Agent Delegation**: Agents can autonomously delegate tasks and inquire amongst themselves, enhancing problem-solving efficiency.
- **Flexible Task Management**: Define tasks with customizable tools and assign them to agents dynamically.
- **Processes Driven**: Currently only supports `sequential` task execution and `hierarchical` processes, but more complex processes like consensual and autonomous are being worked on.
- **Save output as file**: Save the output of individual tasks as a file, so you can use it later.
- **Parse output as Pydantic or Json**: Parse the output of individual tasks as a Pydantic model or as a Json if you want to.
- **Works with Open Source Models**: Run your crew using Open AI or open source models refer to the [Connect CrewAI to LLMs](https://docs.crewai.com/how-to/LLM-Connections/) page for details on configuring your agents' connections to models, even ones running locally!
**Note**: CrewAI is a standalone framework built from the ground up, without dependencies on Langchain or other agent frameworks.
- **Deep Customization**: Build sophisticated agents with full control over the system - from overriding inner prompts to accessing low-level APIs. Customize roles, goals, tools, and behaviors while maintaining clean abstractions.
- **Autonomous Inter-Agent Delegation**: Agents can autonomously delegate tasks and inquire amongst themselves, enabling complex problem-solving in real-world scenarios.
- **Flexible Task Management**: Define and customize tasks with granular control, from simple operations to complex multi-step processes.
- **Production-Grade Architecture**: Support for both high-level abstractions and low-level customization, with robust error handling and state management.
- **Predictable Results**: Ensure consistent, accurate outputs through programmatic guardrails, agent training capabilities, and flow-based execution control. See our [documentation on guardrails](https://docs.crewai.com/how-to/guardrails/) for implementation details.
- **Model Flexibility**: Run your crew using OpenAI or open source models with production-ready integrations. See [Connect CrewAI to LLMs](https://docs.crewai.com/how-to/LLM-Connections/) for detailed configuration options.
- **Event-Driven Flows**: Build complex, real-world workflows with precise control over execution paths, state management, and conditional logic.
- **Process Orchestration**: Achieve any workflow pattern through flows - from simple sequential and hierarchical processes to complex, custom orchestration patterns with conditional branching and parallel execution.
![CrewAI Mind Map](./docs/crewAI-mindmap.png "CrewAI Mind Map")
@@ -305,6 +357,98 @@ You can test different real life examples of AI crews in the [CrewAI-examples re
[![Stock Analysis](https://img.youtube.com/vi/e0Uj4yWdaAg/maxresdefault.jpg)](https://www.youtube.com/watch?v=e0Uj4yWdaAg "Stock Analysis")
### Using Crews and Flows Together
CrewAI's power truly shines when combining Crews with Flows to create sophisticated automation pipelines. Here's how you can orchestrate multiple Crews within a Flow:
```python
from crewai.flow.flow import Flow, listen, start, router
from crewai import Crew, Agent, Task
from pydantic import BaseModel
# Define structured state for precise control
class MarketState(BaseModel):
sentiment: str = "neutral"
confidence: float = 0.0
recommendations: list = []
class AdvancedAnalysisFlow(Flow[MarketState]):
@start()
def fetch_market_data(self):
# Demonstrate low-level control with structured state
self.state.sentiment = "analyzing"
return {"sector": "tech", "timeframe": "1W"} # These parameters match the task description template
@listen(fetch_market_data)
def analyze_with_crew(self, market_data):
# Show crew agency through specialized roles
analyst = Agent(
role="Senior Market Analyst",
goal="Conduct deep market analysis with expert insight",
backstory="You're a veteran analyst known for identifying subtle market patterns"
)
researcher = Agent(
role="Data Researcher",
goal="Gather and validate supporting market data",
backstory="You excel at finding and correlating multiple data sources"
)
analysis_task = Task(
description="Analyze {sector} sector data for the past {timeframe}",
expected_output="Detailed market analysis with confidence score",
agent=analyst
)
research_task = Task(
description="Find supporting data to validate the analysis",
expected_output="Corroborating evidence and potential contradictions",
agent=researcher
)
# Demonstrate crew autonomy
analysis_crew = Crew(
agents=[analyst, researcher],
tasks=[analysis_task, research_task],
process=Process.sequential,
verbose=True
)
return analysis_crew.kickoff(inputs=market_data) # Pass market_data as named inputs
@router(analyze_with_crew)
def determine_next_steps(self):
# Show flow control with conditional routing
if self.state.confidence > 0.8:
return "high_confidence"
elif self.state.confidence > 0.5:
return "medium_confidence"
return "low_confidence"
@listen("high_confidence")
def execute_strategy(self):
# Demonstrate complex decision making
strategy_crew = Crew(
agents=[
Agent(role="Strategy Expert",
goal="Develop optimal market strategy")
],
tasks=[
Task(description="Create detailed strategy based on analysis",
expected_output="Step-by-step action plan")
]
)
return strategy_crew.kickoff()
@listen("medium_confidence", "low_confidence")
def request_additional_analysis(self):
self.state.recommendations.append("Gather more data")
return "Additional analysis required"
```
This example demonstrates how to:
1. Use Python code for basic data operations
2. Create and execute Crews as steps in your workflow
3. Use Flow decorators to manage the sequence of operations
4. Implement conditional branching based on Crew results
## Connecting Your Crew to a Model
CrewAI supports using various LLMs through a variety of connection options. By default your agents will use the OpenAI API when querying the model. However, there are several other ways to allow your agents to connect to models. For example, you can configure your agents to use a local model via the Ollama tool.
@@ -313,9 +457,13 @@ Please refer to the [Connect CrewAI to LLMs](https://docs.crewai.com/how-to/LLM-
## How CrewAI Compares
**CrewAI's Advantage**: CrewAI is built with production in mind. It offers the flexibility of Autogen's conversational agents and the structured process approach of ChatDev, but without the rigidity. CrewAI's processes are designed to be dynamic and adaptable, fitting seamlessly into both development and production workflows.
**CrewAI's Advantage**: CrewAI combines autonomous agent intelligence with precise workflow control through its unique Crews and Flows architecture. The framework excels at both high-level orchestration and low-level customization, enabling complex, production-grade systems with granular control.
- **Autogen**: While Autogen does good in creating conversational agents capable of working together, it lacks an inherent concept of process. In Autogen, orchestrating agents' interactions requires additional programming, which can become complex and cumbersome as the scale of tasks grows.
- **LangGraph**: While LangGraph provides a foundation for building agent workflows, its approach requires significant boilerplate code and complex state management patterns. The framework's tight coupling with LangChain can limit flexibility when implementing custom agent behaviors or integrating with external systems.
*P.S. CrewAI demonstrates significant performance advantages over LangGraph, executing 5.76x faster in certain cases like this QA task example ([see comparison](https://github.com/crewAIInc/crewAI-examples/tree/main/Notebooks/CrewAI%20Flows%20%26%20Langgraph/QA%20Agent)) while achieving higher evaluation scores with faster completion times in certain coding tasks, like in this example ([detailed analysis](https://github.com/crewAIInc/crewAI-examples/blob/main/Notebooks/CrewAI%20Flows%20%26%20Langgraph/Coding%20Assistant/coding_assistant_eval.ipynb)).*
- **Autogen**: While Autogen excels at creating conversational agents capable of working together, it lacks an inherent concept of process. In Autogen, orchestrating agents' interactions requires additional programming, which can become complex and cumbersome as the scale of tasks grows.
- **ChatDev**: ChatDev introduced the idea of processes into the realm of AI agents, but its implementation is quite rigid. Customizations in ChatDev are limited and not geared towards production environments, which can hinder scalability and flexibility in real-world applications.
@@ -440,5 +588,8 @@ A: CrewAI uses anonymous telemetry to collect usage data for improvement purpose
### Q: Where can I find examples of CrewAI in action?
A: You can find various real-life examples in the [CrewAI-examples repository](https://github.com/crewAIInc/crewAI-examples), including trip planners, stock analysis tools, and more.
### Q: What is the difference between Crews and Flows?
A: Crews and Flows serve different but complementary purposes in CrewAI. Crews are teams of AI agents working together to accomplish specific tasks through role-based collaboration, delivering accurate and predictable results. Flows, on the other hand, are event-driven workflows that can orchestrate both Crews and regular Python code, allowing you to build complex automation pipelines with secure state management and conditional execution paths.
### Q: How can I contribute to CrewAI?
A: Contributions are welcome! You can fork the repository, create a new branch for your feature, add your improvement, and send a pull request. Check the Contribution section in the README for more details.

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@@ -171,6 +171,58 @@ crewai reset-memories --knowledge
This is useful when you've updated your knowledge sources and want to ensure that the agents are using the most recent information.
## Agent-Specific Knowledge
While knowledge can be provided at the crew level using `crew.knowledge_sources`, individual agents can also have their own knowledge sources using the `knowledge_sources` parameter:
```python Code
from crewai import Agent, Task, Crew
from crewai.knowledge.source.string_knowledge_source import StringKnowledgeSource
# Create agent-specific knowledge about a product
product_specs = StringKnowledgeSource(
content="""The XPS 13 laptop features:
- 13.4-inch 4K display
- Intel Core i7 processor
- 16GB RAM
- 512GB SSD storage
- 12-hour battery life""",
metadata={"category": "product_specs"}
)
# Create a support agent with product knowledge
support_agent = Agent(
role="Technical Support Specialist",
goal="Provide accurate product information and support.",
backstory="You are an expert on our laptop products and specifications.",
knowledge_sources=[product_specs] # Agent-specific knowledge
)
# Create a task that requires product knowledge
support_task = Task(
description="Answer this customer question: {question}",
agent=support_agent
)
# Create and run the crew
crew = Crew(
agents=[support_agent],
tasks=[support_task]
)
# Get answer about the laptop's specifications
result = crew.kickoff(
inputs={"question": "What is the storage capacity of the XPS 13?"}
)
```
<Info>
Benefits of agent-specific knowledge:
- Give agents specialized information for their roles
- Maintain separation of concerns between agents
- Combine with crew-level knowledge for layered information access
</Info>
## Custom Knowledge Sources
CrewAI allows you to create custom knowledge sources for any type of data by extending the `BaseKnowledgeSource` class. Let's create a practical example that fetches and processes space news articles.

View File

@@ -8,27 +8,38 @@ authors = [
{ name = "Joao Moura", email = "joao@crewai.com" }
]
dependencies = [
# Core Dependencies
"pydantic>=2.4.2",
"openai>=1.13.3",
"litellm>=1.44.22",
"instructor>=1.3.3",
# Text Processing
"pdfplumber>=0.11.4",
"regex>=2024.9.11",
# Telemetry and Monitoring
"opentelemetry-api>=1.22.0",
"opentelemetry-sdk>=1.22.0",
"opentelemetry-exporter-otlp-proto-http>=1.22.0",
"instructor>=1.3.3",
"regex>=2024.9.11",
"click>=8.1.7",
# Data Handling
"chromadb>=0.5.23",
"openpyxl>=3.1.5",
"pyvis>=0.3.2",
# Authentication and Security
"auth0-python>=4.7.1",
"python-dotenv>=1.0.0",
# Configuration and Utils
"click>=8.1.7",
"appdirs>=1.4.4",
"jsonref>=1.1.0",
"json-repair>=0.25.2",
"auth0-python>=4.7.1",
"litellm>=1.44.22",
"pyvis>=0.3.2",
"uv>=0.4.25",
"tomli-w>=1.1.0",
"tomli>=2.0.2",
"chromadb>=0.5.23",
"pdfplumber>=0.11.4",
"openpyxl>=3.1.5",
"blinker>=1.9.0",
]
@@ -39,6 +50,9 @@ Repository = "https://github.com/crewAIInc/crewAI"
[project.optional-dependencies]
tools = ["crewai-tools>=0.17.0"]
embeddings = [
"tiktoken~=0.7.0"
]
agentops = ["agentops>=0.3.0"]
fastembed = ["fastembed>=0.4.1"]
pdfplumber = [

View File

@@ -30,7 +30,47 @@ from crewai.telemetry import Telemetry
T = TypeVar("T", bound=Union[BaseModel, Dict[str, Any]])
def start(condition=None):
def start(condition: Optional[Union[str, dict, Callable]] = None) -> Callable:
"""
Marks a method as a flow's starting point.
This decorator designates a method as an entry point for the flow execution.
It can optionally specify conditions that trigger the start based on other
method executions.
Parameters
----------
condition : Optional[Union[str, dict, Callable]], optional
Defines when the start method should execute. Can be:
- str: Name of a method that triggers this start
- dict: Contains "type" ("AND"/"OR") and "methods" (list of triggers)
- Callable: A method reference that triggers this start
Default is None, meaning unconditional start.
Returns
-------
Callable
A decorator function that marks the method as a flow start point.
Raises
------
ValueError
If the condition format is invalid.
Examples
--------
>>> @start() # Unconditional start
>>> def begin_flow(self):
... pass
>>> @start("method_name") # Start after specific method
>>> def conditional_start(self):
... pass
>>> @start(and_("method1", "method2")) # Start after multiple methods
>>> def complex_start(self):
... pass
"""
def decorator(func):
func.__is_start_method__ = True
if condition is not None:
@@ -55,8 +95,42 @@ def start(condition=None):
return decorator
def listen(condition: Union[str, dict, Callable]) -> Callable:
"""
Creates a listener that executes when specified conditions are met.
def listen(condition):
This decorator sets up a method to execute in response to other method
executions in the flow. It supports both simple and complex triggering
conditions.
Parameters
----------
condition : Union[str, dict, Callable]
Specifies when the listener should execute. Can be:
- str: Name of a method that triggers this listener
- dict: Contains "type" ("AND"/"OR") and "methods" (list of triggers)
- Callable: A method reference that triggers this listener
Returns
-------
Callable
A decorator function that sets up the method as a listener.
Raises
------
ValueError
If the condition format is invalid.
Examples
--------
>>> @listen("process_data") # Listen to single method
>>> def handle_processed_data(self):
... pass
>>> @listen(or_("success", "failure")) # Listen to multiple methods
>>> def handle_completion(self):
... pass
"""
def decorator(func):
if isinstance(condition, str):
func.__trigger_methods__ = [condition]
@@ -80,10 +154,49 @@ def listen(condition):
return decorator
def router(condition):
def router(condition: Union[str, dict, Callable]) -> Callable:
"""
Creates a routing method that directs flow execution based on conditions.
This decorator marks a method as a router, which can dynamically determine
the next steps in the flow based on its return value. Routers are triggered
by specified conditions and can return constants that determine which path
the flow should take.
Parameters
----------
condition : Union[str, dict, Callable]
Specifies when the router should execute. Can be:
- str: Name of a method that triggers this router
- dict: Contains "type" ("AND"/"OR") and "methods" (list of triggers)
- Callable: A method reference that triggers this router
Returns
-------
Callable
A decorator function that sets up the method as a router.
Raises
------
ValueError
If the condition format is invalid.
Examples
--------
>>> @router("check_status")
>>> def route_based_on_status(self):
... if self.state.status == "success":
... return SUCCESS
... return FAILURE
>>> @router(and_("validate", "process"))
>>> def complex_routing(self):
... if all([self.state.valid, self.state.processed]):
... return CONTINUE
... return STOP
"""
def decorator(func):
func.__is_router__ = True
# Handle conditions like listen/start
if isinstance(condition, str):
func.__trigger_methods__ = [condition]
func.__condition_type__ = "OR"
@@ -105,8 +218,39 @@ def router(condition):
return decorator
def or_(*conditions: Union[str, dict, Callable]) -> dict:
"""
Combines multiple conditions with OR logic for flow control.
def or_(*conditions):
Creates a condition that is satisfied when any of the specified conditions
are met. This is used with @start, @listen, or @router decorators to create
complex triggering conditions.
Parameters
----------
*conditions : Union[str, dict, Callable]
Variable number of conditions that can be:
- str: Method names
- dict: Existing condition dictionaries
- Callable: Method references
Returns
-------
dict
A condition dictionary with format:
{"type": "OR", "methods": list_of_method_names}
Raises
------
ValueError
If any condition is invalid.
Examples
--------
>>> @listen(or_("success", "timeout"))
>>> def handle_completion(self):
... pass
"""
methods = []
for condition in conditions:
if isinstance(condition, dict) and "methods" in condition:
@@ -120,7 +264,39 @@ def or_(*conditions):
return {"type": "OR", "methods": methods}
def and_(*conditions):
def and_(*conditions: Union[str, dict, Callable]) -> dict:
"""
Combines multiple conditions with AND logic for flow control.
Creates a condition that is satisfied only when all specified conditions
are met. This is used with @start, @listen, or @router decorators to create
complex triggering conditions.
Parameters
----------
*conditions : Union[str, dict, Callable]
Variable number of conditions that can be:
- str: Method names
- dict: Existing condition dictionaries
- Callable: Method references
Returns
-------
dict
A condition dictionary with format:
{"type": "AND", "methods": list_of_method_names}
Raises
------
ValueError
If any condition is invalid.
Examples
--------
>>> @listen(and_("validated", "processed"))
>>> def handle_complete_data(self):
... pass
"""
methods = []
for condition in conditions:
if isinstance(condition, dict) and "methods" in condition:
@@ -286,6 +462,23 @@ class Flow(Generic[T], metaclass=FlowMeta):
return final_output
async def _execute_start_method(self, start_method_name: str) -> None:
"""
Executes a flow's start method and its triggered listeners.
This internal method handles the execution of methods marked with @start
decorator and manages the subsequent chain of listener executions.
Parameters
----------
start_method_name : str
The name of the start method to execute.
Notes
-----
- Executes the start method and captures its result
- Triggers execution of any listeners waiting on this start method
- Part of the flow's initialization sequence
"""
result = await self._execute_method(
start_method_name, self._methods[start_method_name]
)
@@ -306,6 +499,28 @@ class Flow(Generic[T], metaclass=FlowMeta):
return result
async def _execute_listeners(self, trigger_method: str, result: Any) -> None:
"""
Executes all listeners and routers triggered by a method completion.
This internal method manages the execution flow by:
1. First executing all triggered routers sequentially
2. Then executing all triggered listeners in parallel
Parameters
----------
trigger_method : str
The name of the method that triggered these listeners.
result : Any
The result from the triggering method, passed to listeners
that accept parameters.
Notes
-----
- Routers are executed sequentially to maintain flow control
- Each router's result becomes the new trigger_method
- Normal listeners are executed in parallel for efficiency
- Listeners can receive the trigger method's result as a parameter
"""
# First, handle routers repeatedly until no router triggers anymore
while True:
routers_triggered = self._find_triggered_methods(
@@ -335,6 +550,33 @@ class Flow(Generic[T], metaclass=FlowMeta):
def _find_triggered_methods(
self, trigger_method: str, router_only: bool
) -> List[str]:
"""
Finds all methods that should be triggered based on conditions.
This internal method evaluates both OR and AND conditions to determine
which methods should be executed next in the flow.
Parameters
----------
trigger_method : str
The name of the method that just completed execution.
router_only : bool
If True, only consider router methods.
If False, only consider non-router methods.
Returns
-------
List[str]
Names of methods that should be triggered.
Notes
-----
- Handles both OR and AND conditions:
* OR: Triggers if any condition is met
* AND: Triggers only when all conditions are met
- Maintains state for AND conditions using _pending_and_listeners
- Separates router and normal listener evaluation
"""
triggered = []
for listener_name, (condition_type, methods) in self._listeners.items():
is_router = listener_name in self._routers
@@ -363,6 +605,33 @@ class Flow(Generic[T], metaclass=FlowMeta):
return triggered
async def _execute_single_listener(self, listener_name: str, result: Any) -> None:
"""
Executes a single listener method with proper event handling.
This internal method manages the execution of an individual listener,
including parameter inspection, event emission, and error handling.
Parameters
----------
listener_name : str
The name of the listener method to execute.
result : Any
The result from the triggering method, which may be passed
to the listener if it accepts parameters.
Notes
-----
- Inspects method signature to determine if it accepts the trigger result
- Emits events for method execution start and finish
- Handles errors gracefully with detailed logging
- Recursively triggers listeners of this listener
- Supports both parameterized and parameter-less listeners
Error Handling
-------------
Catches and logs any exceptions during execution, preventing
individual listener failures from breaking the entire flow.
"""
try:
method = self._methods[listener_name]

View File

@@ -1,12 +1,14 @@
# flow_visualizer.py
import os
from pathlib import Path
from pyvis.network import Network
from crewai.flow.config import COLORS, NODE_STYLES
from crewai.flow.html_template_handler import HTMLTemplateHandler
from crewai.flow.legend_generator import generate_legend_items_html, get_legend_items
from crewai.flow.path_utils import safe_path_join, validate_path_exists
from crewai.flow.utils import calculate_node_levels
from crewai.flow.visualization_utils import (
add_edges,
@@ -16,89 +18,209 @@ from crewai.flow.visualization_utils import (
class FlowPlot:
"""Handles the creation and rendering of flow visualization diagrams."""
def __init__(self, flow):
"""
Initialize FlowPlot with a flow object.
Parameters
----------
flow : Flow
A Flow instance to visualize.
Raises
------
ValueError
If flow object is invalid or missing required attributes.
"""
if not hasattr(flow, '_methods'):
raise ValueError("Invalid flow object: missing '_methods' attribute")
if not hasattr(flow, '_listeners'):
raise ValueError("Invalid flow object: missing '_listeners' attribute")
if not hasattr(flow, '_start_methods'):
raise ValueError("Invalid flow object: missing '_start_methods' attribute")
self.flow = flow
self.colors = COLORS
self.node_styles = NODE_STYLES
def plot(self, filename):
net = Network(
directed=True,
height="750px",
width="100%",
bgcolor=self.colors["bg"],
layout=None,
)
# Set options to disable physics
net.set_options(
"""
var options = {
"nodes": {
"font": {
"multi": "html"
}
},
"physics": {
"enabled": false
}
}
"""
)
Generate and save an HTML visualization of the flow.
# Calculate levels for nodes
node_levels = calculate_node_levels(self.flow)
Parameters
----------
filename : str
Name of the output file (without extension).
# Compute positions
node_positions = compute_positions(self.flow, node_levels)
Raises
------
ValueError
If filename is invalid or network generation fails.
IOError
If file operations fail or visualization cannot be generated.
RuntimeError
If network visualization generation fails.
"""
if not filename or not isinstance(filename, str):
raise ValueError("Filename must be a non-empty string")
try:
# Initialize network
net = Network(
directed=True,
height="750px",
width="100%",
bgcolor=self.colors["bg"],
layout=None,
)
# Add nodes to the network
add_nodes_to_network(net, self.flow, node_positions, self.node_styles)
# Set options to disable physics
net.set_options(
"""
var options = {
"nodes": {
"font": {
"multi": "html"
}
},
"physics": {
"enabled": false
}
}
"""
)
# Add edges to the network
add_edges(net, self.flow, node_positions, self.colors)
# Calculate levels for nodes
try:
node_levels = calculate_node_levels(self.flow)
except Exception as e:
raise ValueError(f"Failed to calculate node levels: {str(e)}")
network_html = net.generate_html()
final_html_content = self._generate_final_html(network_html)
# Compute positions
try:
node_positions = compute_positions(self.flow, node_levels)
except Exception as e:
raise ValueError(f"Failed to compute node positions: {str(e)}")
# Save the final HTML content to the file
with open(f"{filename}.html", "w", encoding="utf-8") as f:
f.write(final_html_content)
print(f"Plot saved as {filename}.html")
# Add nodes to the network
try:
add_nodes_to_network(net, self.flow, node_positions, self.node_styles)
except Exception as e:
raise RuntimeError(f"Failed to add nodes to network: {str(e)}")
self._cleanup_pyvis_lib()
# Add edges to the network
try:
add_edges(net, self.flow, node_positions, self.colors)
except Exception as e:
raise RuntimeError(f"Failed to add edges to network: {str(e)}")
# Generate HTML
try:
network_html = net.generate_html()
final_html_content = self._generate_final_html(network_html)
except Exception as e:
raise RuntimeError(f"Failed to generate network visualization: {str(e)}")
# Save the final HTML content to the file
try:
with open(f"{filename}.html", "w", encoding="utf-8") as f:
f.write(final_html_content)
print(f"Plot saved as {filename}.html")
except IOError as e:
raise IOError(f"Failed to save flow visualization to {filename}.html: {str(e)}")
except (ValueError, RuntimeError, IOError) as e:
raise e
except Exception as e:
raise RuntimeError(f"Unexpected error during flow visualization: {str(e)}")
finally:
self._cleanup_pyvis_lib()
def _generate_final_html(self, network_html):
# Extract just the body content from the generated HTML
current_dir = os.path.dirname(__file__)
template_path = os.path.join(
current_dir, "assets", "crewai_flow_visual_template.html"
)
logo_path = os.path.join(current_dir, "assets", "crewai_logo.svg")
"""
Generate the final HTML content with network visualization and legend.
html_handler = HTMLTemplateHandler(template_path, logo_path)
network_body = html_handler.extract_body_content(network_html)
Parameters
----------
network_html : str
HTML content generated by pyvis Network.
# Generate the legend items HTML
legend_items = get_legend_items(self.colors)
legend_items_html = generate_legend_items_html(legend_items)
final_html_content = html_handler.generate_final_html(
network_body, legend_items_html
)
return final_html_content
Returns
-------
str
Complete HTML content with styling and legend.
Raises
------
IOError
If template or logo files cannot be accessed.
ValueError
If network_html is invalid.
"""
if not network_html:
raise ValueError("Invalid network HTML content")
try:
# Extract just the body content from the generated HTML
current_dir = os.path.dirname(__file__)
template_path = safe_path_join("assets", "crewai_flow_visual_template.html", root=current_dir)
logo_path = safe_path_join("assets", "crewai_logo.svg", root=current_dir)
if not os.path.exists(template_path):
raise IOError(f"Template file not found: {template_path}")
if not os.path.exists(logo_path):
raise IOError(f"Logo file not found: {logo_path}")
html_handler = HTMLTemplateHandler(template_path, logo_path)
network_body = html_handler.extract_body_content(network_html)
# Generate the legend items HTML
legend_items = get_legend_items(self.colors)
legend_items_html = generate_legend_items_html(legend_items)
final_html_content = html_handler.generate_final_html(
network_body, legend_items_html
)
return final_html_content
except Exception as e:
raise IOError(f"Failed to generate visualization HTML: {str(e)}")
def _cleanup_pyvis_lib(self):
# Clean up the generated lib folder
lib_folder = os.path.join(os.getcwd(), "lib")
"""
Clean up the generated lib folder from pyvis.
This method safely removes the temporary lib directory created by pyvis
during network visualization generation.
"""
try:
lib_folder = safe_path_join("lib", root=os.getcwd())
if os.path.exists(lib_folder) and os.path.isdir(lib_folder):
import shutil
shutil.rmtree(lib_folder)
except ValueError as e:
print(f"Error validating lib folder path: {e}")
except Exception as e:
print(f"Error cleaning up {lib_folder}: {e}")
print(f"Error cleaning up lib folder: {e}")
def plot_flow(flow, filename="flow_plot"):
"""
Convenience function to create and save a flow visualization.
Parameters
----------
flow : Flow
Flow instance to visualize.
filename : str, optional
Output filename without extension, by default "flow_plot".
Raises
------
ValueError
If flow object or filename is invalid.
IOError
If file operations fail.
"""
visualizer = FlowPlot(flow)
visualizer.plot(filename)

View File

@@ -1,26 +1,53 @@
import base64
import re
from pathlib import Path
from crewai.flow.path_utils import safe_path_join, validate_path_exists
class HTMLTemplateHandler:
"""Handles HTML template processing and generation for flow visualization diagrams."""
def __init__(self, template_path, logo_path):
self.template_path = template_path
self.logo_path = logo_path
"""
Initialize HTMLTemplateHandler with validated template and logo paths.
Parameters
----------
template_path : str
Path to the HTML template file.
logo_path : str
Path to the logo image file.
Raises
------
ValueError
If template or logo paths are invalid or files don't exist.
"""
try:
self.template_path = validate_path_exists(template_path, "file")
self.logo_path = validate_path_exists(logo_path, "file")
except ValueError as e:
raise ValueError(f"Invalid template or logo path: {e}")
def read_template(self):
"""Read and return the HTML template file contents."""
with open(self.template_path, "r", encoding="utf-8") as f:
return f.read()
def encode_logo(self):
"""Convert the logo SVG file to base64 encoded string."""
with open(self.logo_path, "rb") as logo_file:
logo_svg_data = logo_file.read()
return base64.b64encode(logo_svg_data).decode("utf-8")
def extract_body_content(self, html):
"""Extract and return content between body tags from HTML string."""
match = re.search("<body.*?>(.*?)</body>", html, re.DOTALL)
return match.group(1) if match else ""
def generate_legend_items_html(self, legend_items):
"""Generate HTML markup for the legend items."""
legend_items_html = ""
for item in legend_items:
if "border" in item:
@@ -48,6 +75,7 @@ class HTMLTemplateHandler:
return legend_items_html
def generate_final_html(self, network_body, legend_items_html, title="Flow Plot"):
"""Combine all components into final HTML document with network visualization."""
html_template = self.read_template()
logo_svg_base64 = self.encode_logo()

View File

@@ -1,3 +1,4 @@
def get_legend_items(colors):
return [
{"label": "Start Method", "color": colors["start"]},

View File

@@ -0,0 +1,135 @@
"""
Path utilities for secure file operations in CrewAI flow module.
This module provides utilities for secure path handling to prevent directory
traversal attacks and ensure paths remain within allowed boundaries.
"""
import os
from pathlib import Path
from typing import List, Union
def safe_path_join(*parts: str, root: Union[str, Path, None] = None) -> str:
"""
Safely join path components and ensure the result is within allowed boundaries.
Parameters
----------
*parts : str
Variable number of path components to join.
root : Union[str, Path, None], optional
Root directory to use as base. If None, uses current working directory.
Returns
-------
str
String representation of the resolved path.
Raises
------
ValueError
If the resulting path would be outside the root directory
or if any path component is invalid.
"""
if not parts:
raise ValueError("No path components provided")
try:
# Convert all parts to strings and clean them
clean_parts = [str(part).strip() for part in parts if part]
if not clean_parts:
raise ValueError("No valid path components provided")
# Establish root directory
root_path = Path(root).resolve() if root else Path.cwd()
# Join and resolve the full path
full_path = Path(root_path, *clean_parts).resolve()
# Check if the resolved path is within root
if not str(full_path).startswith(str(root_path)):
raise ValueError(
f"Invalid path: Potential directory traversal. Path must be within {root_path}"
)
return str(full_path)
except Exception as e:
if isinstance(e, ValueError):
raise
raise ValueError(f"Invalid path components: {str(e)}")
def validate_path_exists(path: Union[str, Path], file_type: str = "file") -> str:
"""
Validate that a path exists and is of the expected type.
Parameters
----------
path : Union[str, Path]
Path to validate.
file_type : str, optional
Expected type ('file' or 'directory'), by default 'file'.
Returns
-------
str
Validated path as string.
Raises
------
ValueError
If path doesn't exist or is not of expected type.
"""
try:
path_obj = Path(path).resolve()
if not path_obj.exists():
raise ValueError(f"Path does not exist: {path}")
if file_type == "file" and not path_obj.is_file():
raise ValueError(f"Path is not a file: {path}")
elif file_type == "directory" and not path_obj.is_dir():
raise ValueError(f"Path is not a directory: {path}")
return str(path_obj)
except Exception as e:
if isinstance(e, ValueError):
raise
raise ValueError(f"Invalid path: {str(e)}")
def list_files(directory: Union[str, Path], pattern: str = "*") -> List[str]:
"""
Safely list files in a directory matching a pattern.
Parameters
----------
directory : Union[str, Path]
Directory to search in.
pattern : str, optional
Glob pattern to match files against, by default "*".
Returns
-------
List[str]
List of matching file paths.
Raises
------
ValueError
If directory is invalid or inaccessible.
"""
try:
dir_path = Path(directory).resolve()
if not dir_path.is_dir():
raise ValueError(f"Not a directory: {directory}")
return [str(p) for p in dir_path.glob(pattern) if p.is_file()]
except Exception as e:
if isinstance(e, ValueError):
raise
raise ValueError(f"Error listing files: {str(e)}")

View File

@@ -1,9 +1,25 @@
"""
Utility functions for flow visualization and dependency analysis.
This module provides core functionality for analyzing and manipulating flow structures,
including node level calculation, ancestor tracking, and return value analysis.
Functions in this module are primarily used by the visualization system to create
accurate and informative flow diagrams.
Example
-------
>>> flow = Flow()
>>> node_levels = calculate_node_levels(flow)
>>> ancestors = build_ancestor_dict(flow)
"""
import ast
import inspect
import textwrap
from typing import Any, Dict, List, Optional, Set, Union
def get_possible_return_constants(function):
def get_possible_return_constants(function: Any) -> Optional[List[str]]:
try:
source = inspect.getsource(function)
except OSError:
@@ -77,11 +93,34 @@ def get_possible_return_constants(function):
return list(return_values) if return_values else None
def calculate_node_levels(flow):
levels = {}
queue = []
visited = set()
pending_and_listeners = {}
def calculate_node_levels(flow: Any) -> Dict[str, int]:
"""
Calculate the hierarchical level of each node in the flow.
Performs a breadth-first traversal of the flow graph to assign levels
to nodes, starting with start methods at level 0.
Parameters
----------
flow : Any
The flow instance containing methods, listeners, and router configurations.
Returns
-------
Dict[str, int]
Dictionary mapping method names to their hierarchical levels.
Notes
-----
- Start methods are assigned level 0
- Each subsequent connected node is assigned level = parent_level + 1
- Handles both OR and AND conditions for listeners
- Processes router paths separately
"""
levels: Dict[str, int] = {}
queue: List[str] = []
visited: Set[str] = set()
pending_and_listeners: Dict[str, Set[str]] = {}
# Make all start methods at level 0
for method_name, method in flow._methods.items():
@@ -140,7 +179,20 @@ def calculate_node_levels(flow):
return levels
def count_outgoing_edges(flow):
def count_outgoing_edges(flow: Any) -> Dict[str, int]:
"""
Count the number of outgoing edges for each method in the flow.
Parameters
----------
flow : Any
The flow instance to analyze.
Returns
-------
Dict[str, int]
Dictionary mapping method names to their outgoing edge count.
"""
counts = {}
for method_name in flow._methods:
counts[method_name] = 0
@@ -152,16 +204,53 @@ def count_outgoing_edges(flow):
return counts
def build_ancestor_dict(flow):
ancestors = {node: set() for node in flow._methods}
visited = set()
def build_ancestor_dict(flow: Any) -> Dict[str, Set[str]]:
"""
Build a dictionary mapping each node to its ancestor nodes.
Parameters
----------
flow : Any
The flow instance to analyze.
Returns
-------
Dict[str, Set[str]]
Dictionary mapping each node to a set of its ancestor nodes.
"""
ancestors: Dict[str, Set[str]] = {node: set() for node in flow._methods}
visited: Set[str] = set()
for node in flow._methods:
if node not in visited:
dfs_ancestors(node, ancestors, visited, flow)
return ancestors
def dfs_ancestors(node, ancestors, visited, flow):
def dfs_ancestors(
node: str,
ancestors: Dict[str, Set[str]],
visited: Set[str],
flow: Any
) -> None:
"""
Perform depth-first search to build ancestor relationships.
Parameters
----------
node : str
Current node being processed.
ancestors : Dict[str, Set[str]]
Dictionary tracking ancestor relationships.
visited : Set[str]
Set of already visited nodes.
flow : Any
The flow instance being analyzed.
Notes
-----
This function modifies the ancestors dictionary in-place to build
the complete ancestor graph.
"""
if node in visited:
return
visited.add(node)
@@ -185,12 +274,48 @@ def dfs_ancestors(node, ancestors, visited, flow):
dfs_ancestors(listener_name, ancestors, visited, flow)
def is_ancestor(node, ancestor_candidate, ancestors):
def is_ancestor(node: str, ancestor_candidate: str, ancestors: Dict[str, Set[str]]) -> bool:
"""
Check if one node is an ancestor of another.
Parameters
----------
node : str
The node to check ancestors for.
ancestor_candidate : str
The potential ancestor node.
ancestors : Dict[str, Set[str]]
Dictionary containing ancestor relationships.
Returns
-------
bool
True if ancestor_candidate is an ancestor of node, False otherwise.
"""
return ancestor_candidate in ancestors.get(node, set())
def build_parent_children_dict(flow):
parent_children = {}
def build_parent_children_dict(flow: Any) -> Dict[str, List[str]]:
"""
Build a dictionary mapping parent nodes to their children.
Parameters
----------
flow : Any
The flow instance to analyze.
Returns
-------
Dict[str, List[str]]
Dictionary mapping parent method names to lists of their child method names.
Notes
-----
- Maps listeners to their trigger methods
- Maps router methods to their paths and listeners
- Children lists are sorted for consistent ordering
"""
parent_children: Dict[str, List[str]] = {}
# Map listeners to their trigger methods
for listener_name, (_, trigger_methods) in flow._listeners.items():
@@ -214,7 +339,24 @@ def build_parent_children_dict(flow):
return parent_children
def get_child_index(parent, child, parent_children):
def get_child_index(parent: str, child: str, parent_children: Dict[str, List[str]]) -> int:
"""
Get the index of a child node in its parent's sorted children list.
Parameters
----------
parent : str
The parent node name.
child : str
The child node name to find the index for.
parent_children : Dict[str, List[str]]
Dictionary mapping parents to their children lists.
Returns
-------
int
Zero-based index of the child in its parent's sorted children list.
"""
children = parent_children.get(parent, [])
children.sort()
return children.index(child)

View File

@@ -1,5 +1,23 @@
"""
Utilities for creating visual representations of flow structures.
This module provides functions for generating network visualizations of flows,
including node placement, edge creation, and visual styling. It handles the
conversion of flow structures into visual network graphs with appropriate
styling and layout.
Example
-------
>>> flow = Flow()
>>> net = Network(directed=True)
>>> node_positions = compute_positions(flow, node_levels)
>>> add_nodes_to_network(net, flow, node_positions, node_styles)
>>> add_edges(net, flow, node_positions, colors)
"""
import ast
import inspect
from typing import Any, Dict, List, Optional, Tuple, Union
from .utils import (
build_ancestor_dict,
@@ -9,8 +27,25 @@ from .utils import (
)
def method_calls_crew(method):
"""Check if the method calls `.crew()`."""
def method_calls_crew(method: Any) -> bool:
"""
Check if the method contains a call to `.crew()`.
Parameters
----------
method : Any
The method to analyze for crew() calls.
Returns
-------
bool
True if the method calls .crew(), False otherwise.
Notes
-----
Uses AST analysis to detect method calls, specifically looking for
attribute access of 'crew'.
"""
try:
source = inspect.getsource(method)
source = inspect.cleandoc(source)
@@ -20,6 +55,7 @@ def method_calls_crew(method):
return False
class CrewCallVisitor(ast.NodeVisitor):
"""AST visitor to detect .crew() method calls."""
def __init__(self):
self.found = False
@@ -34,7 +70,34 @@ def method_calls_crew(method):
return visitor.found
def add_nodes_to_network(net, flow, node_positions, node_styles):
def add_nodes_to_network(
net: Any,
flow: Any,
node_positions: Dict[str, Tuple[float, float]],
node_styles: Dict[str, Dict[str, Any]]
) -> None:
"""
Add nodes to the network visualization with appropriate styling.
Parameters
----------
net : Any
The pyvis Network instance to add nodes to.
flow : Any
The flow instance containing method information.
node_positions : Dict[str, Tuple[float, float]]
Dictionary mapping node names to their (x, y) positions.
node_styles : Dict[str, Dict[str, Any]]
Dictionary containing style configurations for different node types.
Notes
-----
Node types include:
- Start methods
- Router methods
- Crew methods
- Regular methods
"""
def human_friendly_label(method_name):
return method_name.replace("_", " ").title()
@@ -73,9 +136,33 @@ def add_nodes_to_network(net, flow, node_positions, node_styles):
)
def compute_positions(flow, node_levels, y_spacing=150, x_spacing=150):
level_nodes = {}
node_positions = {}
def compute_positions(
flow: Any,
node_levels: Dict[str, int],
y_spacing: float = 150,
x_spacing: float = 150
) -> Dict[str, Tuple[float, float]]:
"""
Compute the (x, y) positions for each node in the flow graph.
Parameters
----------
flow : Any
The flow instance to compute positions for.
node_levels : Dict[str, int]
Dictionary mapping node names to their hierarchical levels.
y_spacing : float, optional
Vertical spacing between levels, by default 150.
x_spacing : float, optional
Horizontal spacing between nodes, by default 150.
Returns
-------
Dict[str, Tuple[float, float]]
Dictionary mapping node names to their (x, y) coordinates.
"""
level_nodes: Dict[int, List[str]] = {}
node_positions: Dict[str, Tuple[float, float]] = {}
for method_name, level in node_levels.items():
level_nodes.setdefault(level, []).append(method_name)
@@ -90,7 +177,33 @@ def compute_positions(flow, node_levels, y_spacing=150, x_spacing=150):
return node_positions
def add_edges(net, flow, node_positions, colors):
def add_edges(
net: Any,
flow: Any,
node_positions: Dict[str, Tuple[float, float]],
colors: Dict[str, str]
) -> None:
edge_smooth: Dict[str, Union[str, float]] = {"type": "continuous"} # Default value
"""
Add edges to the network visualization with appropriate styling.
Parameters
----------
net : Any
The pyvis Network instance to add edges to.
flow : Any
The flow instance containing edge information.
node_positions : Dict[str, Tuple[float, float]]
Dictionary mapping node names to their positions.
colors : Dict[str, str]
Dictionary mapping edge types to their colors.
Notes
-----
- Handles both normal listener edges and router edges
- Applies appropriate styling (color, dashes) based on edge type
- Adds curvature to edges when needed (cycles or multiple children)
"""
ancestors = build_ancestor_dict(flow)
parent_children = build_parent_children_dict(flow)
@@ -126,7 +239,7 @@ def add_edges(net, flow, node_positions, colors):
else:
edge_smooth = {"type": "cubicBezier"}
else:
edge_smooth = False
edge_smooth.update({"type": "continuous"})
edge_style = {
"color": edge_color,
@@ -189,7 +302,7 @@ def add_edges(net, flow, node_positions, colors):
else:
edge_smooth = {"type": "cubicBezier"}
else:
edge_smooth = False
edge_smooth.update({"type": "continuous"})
edge_style = {
"color": colors["router_edge"],

View File

@@ -26,9 +26,10 @@ class BaseFileKnowledgeSource(BaseKnowledgeSource, ABC):
safe_file_paths: List[Path] = Field(default_factory=list)
@field_validator("file_path", "file_paths", mode="before")
def validate_file_path(cls, v, values):
def validate_file_path(cls, v, info):
"""Validate that at least one of file_path or file_paths is provided."""
if v is None and ("file_path" not in values or values.get("file_path") is None):
# Single check if both are None, O(1) instead of nested conditions
if v is None and info.data.get("file_path" if info.field_name == "file_paths" else "file_paths") is None:
raise ValueError("Either file_path or file_paths must be provided")
return v

View File

@@ -179,6 +179,7 @@ class Task(BaseModel):
_execution_span: Optional[Span] = PrivateAttr(default=None)
_original_description: Optional[str] = PrivateAttr(default=None)
_original_expected_output: Optional[str] = PrivateAttr(default=None)
_original_output_file: Optional[str] = PrivateAttr(default=None)
_thread: Optional[threading.Thread] = PrivateAttr(default=None)
_execution_time: Optional[float] = PrivateAttr(default=None)
@@ -213,8 +214,46 @@ class Task(BaseModel):
@field_validator("output_file")
@classmethod
def output_file_validation(cls, value: str) -> str:
"""Validate the output file path by removing the / from the beginning of the path."""
def output_file_validation(cls, value: Optional[str]) -> Optional[str]:
"""Validate the output file path.
Args:
value: The output file path to validate. Can be None or a string.
If the path contains template variables (e.g. {var}), leading slashes are preserved.
For regular paths, leading slashes are stripped.
Returns:
The validated and potentially modified path, or None if no path was provided.
Raises:
ValueError: If the path contains invalid characters, path traversal attempts,
or other security concerns.
"""
if value is None:
return None
# Basic security checks
if ".." in value:
raise ValueError("Path traversal attempts are not allowed in output_file paths")
# Check for shell expansion first
if value.startswith('~') or value.startswith('$'):
raise ValueError("Shell expansion characters are not allowed in output_file paths")
# Then check other shell special characters
if any(char in value for char in ['|', '>', '<', '&', ';']):
raise ValueError("Shell special characters are not allowed in output_file paths")
# Don't strip leading slash if it's a template path with variables
if "{" in value or "}" in value:
# Validate template variable format
template_vars = [part.split("}")[0] for part in value.split("{")[1:]]
for var in template_vars:
if not var.isidentifier():
raise ValueError(f"Invalid template variable name: {var}")
return value
# Strip leading slash for regular paths
if value.startswith("/"):
return value[1:]
return value
@@ -393,27 +432,89 @@ class Task(BaseModel):
tasks_slices = [self.description, output]
return "\n".join(tasks_slices)
def interpolate_inputs(self, inputs: Dict[str, Any]) -> None:
"""Interpolate inputs into the task description and expected output."""
def interpolate_inputs(self, inputs: Dict[str, Union[str, int, float]]) -> None:
"""Interpolate inputs into the task description, expected output, and output file path.
Args:
inputs: Dictionary mapping template variables to their values.
Supported value types are strings, integers, and floats.
Raises:
ValueError: If a required template variable is missing from inputs.
"""
if self._original_description is None:
self._original_description = self.description
if self._original_expected_output is None:
self._original_expected_output = self.expected_output
if self.output_file is not None and self._original_output_file is None:
self._original_output_file = self.output_file
if inputs:
if not inputs:
return
try:
self.description = self._original_description.format(**inputs)
except KeyError as e:
raise ValueError(f"Missing required template variable '{e.args[0]}' in description") from e
except ValueError as e:
raise ValueError(f"Error interpolating description: {str(e)}") from e
try:
self.expected_output = self.interpolate_only(
input_string=self._original_expected_output, inputs=inputs
)
except (KeyError, ValueError) as e:
raise ValueError(f"Error interpolating expected_output: {str(e)}") from e
def interpolate_only(self, input_string: str, inputs: Dict[str, Any]) -> str:
"""Interpolate placeholders (e.g., {key}) in a string while leaving JSON untouched."""
escaped_string = input_string.replace("{", "{{").replace("}", "}}")
if self.output_file is not None:
try:
self.output_file = self.interpolate_only(
input_string=self._original_output_file, inputs=inputs
)
except (KeyError, ValueError) as e:
raise ValueError(f"Error interpolating output_file path: {str(e)}") from e
for key in inputs.keys():
escaped_string = escaped_string.replace(f"{{{{{key}}}}}", f"{{{key}}}")
def interpolate_only(self, input_string: Optional[str], inputs: Dict[str, Union[str, int, float]]) -> str:
"""Interpolate placeholders (e.g., {key}) in a string while leaving JSON untouched.
Args:
input_string: The string containing template variables to interpolate.
Can be None or empty, in which case an empty string is returned.
inputs: Dictionary mapping template variables to their values.
Supported value types are strings, integers, and floats.
If input_string is empty or has no placeholders, inputs can be empty.
Returns:
The interpolated string with all template variables replaced with their values.
Empty string if input_string is None or empty.
Raises:
ValueError: If a required template variable is missing from inputs.
KeyError: If a template variable is not found in the inputs dictionary.
"""
if input_string is None or not input_string:
return ""
if "{" not in input_string and "}" not in input_string:
return input_string
if not inputs:
raise ValueError("Inputs dictionary cannot be empty when interpolating variables")
return escaped_string.format(**inputs)
try:
# Validate input types
for key, value in inputs.items():
if not isinstance(value, (str, int, float)):
raise ValueError(f"Value for key '{key}' must be a string, integer, or float, got {type(value).__name__}")
escaped_string = input_string.replace("{", "{{").replace("}", "}}")
for key in inputs.keys():
escaped_string = escaped_string.replace(f"{{{{{key}}}}}", f"{{{key}}}")
return escaped_string.format(**inputs)
except KeyError as e:
raise KeyError(f"Template variable '{e.args[0]}' not found in inputs dictionary") from e
except ValueError as e:
raise ValueError(f"Error during string interpolation: {str(e)}") from e
def increment_tools_errors(self) -> None:
"""Increment the tools errors counter."""

View File

@@ -1,3 +1,4 @@
import logging
from typing import Optional, Union
from pydantic import Field
@@ -7,6 +8,8 @@ from crewai.task import Task
from crewai.tools.base_tool import BaseTool
from crewai.utilities import I18N
logger = logging.getLogger(__name__)
class BaseAgentTool(BaseTool):
"""Base class for agent-related tools"""
@@ -16,6 +19,25 @@ class BaseAgentTool(BaseTool):
default_factory=I18N, description="Internationalization settings"
)
def sanitize_agent_name(self, name: str) -> str:
"""
Sanitize agent role name by normalizing whitespace and setting to lowercase.
Converts all whitespace (including newlines) to single spaces and removes quotes.
Args:
name (str): The agent role name to sanitize
Returns:
str: The sanitized agent role name, with whitespace normalized,
converted to lowercase, and quotes removed
"""
if not name:
return ""
# Normalize all whitespace (including newlines) to single spaces
normalized = " ".join(name.split())
# Remove quotes and convert to lowercase
return normalized.replace('"', "").casefold()
def _get_coworker(self, coworker: Optional[str], **kwargs) -> Optional[str]:
coworker = coworker or kwargs.get("co_worker") or kwargs.get("coworker")
if coworker:
@@ -25,11 +47,27 @@ class BaseAgentTool(BaseTool):
return coworker
def _execute(
self, agent_name: Union[str, None], task: str, context: Union[str, None]
self,
agent_name: Optional[str],
task: str,
context: Optional[str] = None
) -> str:
"""
Execute delegation to an agent with case-insensitive and whitespace-tolerant matching.
Args:
agent_name: Name/role of the agent to delegate to (case-insensitive)
task: The specific question or task to delegate
context: Optional additional context for the task execution
Returns:
str: The execution result from the delegated agent or an error message
if the agent cannot be found
"""
try:
if agent_name is None:
agent_name = ""
logger.debug("No agent name provided, using empty string")
# It is important to remove the quotes from the agent name.
# The reason we have to do this is because less-powerful LLM's
@@ -38,31 +76,49 @@ class BaseAgentTool(BaseTool):
# {"task": "....", "coworker": "....
# when it should look like this:
# {"task": "....", "coworker": "...."}
agent_name = agent_name.casefold().replace('"', "").replace("\n", "")
sanitized_name = self.sanitize_agent_name(agent_name)
logger.debug(f"Sanitized agent name from '{agent_name}' to '{sanitized_name}'")
available_agents = [agent.role for agent in self.agents]
logger.debug(f"Available agents: {available_agents}")
agent = [ # type: ignore # Incompatible types in assignment (expression has type "list[BaseAgent]", variable has type "str | None")
available_agent
for available_agent in self.agents
if available_agent.role.casefold().replace("\n", "") == agent_name
if self.sanitize_agent_name(available_agent.role) == sanitized_name
]
except Exception as _:
logger.debug(f"Found {len(agent)} matching agents for role '{sanitized_name}'")
except (AttributeError, ValueError) as e:
# Handle specific exceptions that might occur during role name processing
return self.i18n.errors("agent_tool_unexisting_coworker").format(
coworkers="\n".join(
[f"- {agent.role.casefold()}" for agent in self.agents]
)
[f"- {self.sanitize_agent_name(agent.role)}" for agent in self.agents]
),
error=str(e)
)
if not agent:
# No matching agent found after sanitization
return self.i18n.errors("agent_tool_unexisting_coworker").format(
coworkers="\n".join(
[f"- {agent.role.casefold()}" for agent in self.agents]
)
[f"- {self.sanitize_agent_name(agent.role)}" for agent in self.agents]
),
error=f"No agent found with role '{sanitized_name}'"
)
agent = agent[0]
task_with_assigned_agent = Task( # type: ignore # Incompatible types in assignment (expression has type "Task", variable has type "str")
description=task,
agent=agent,
expected_output=agent.i18n.slice("manager_request"),
i18n=agent.i18n,
)
return agent.execute_task(task_with_assigned_agent, context)
try:
task_with_assigned_agent = Task(
description=task,
agent=agent,
expected_output=agent.i18n.slice("manager_request"),
i18n=agent.i18n,
)
logger.debug(f"Created task for agent '{self.sanitize_agent_name(agent.role)}': {task}")
return agent.execute_task(task_with_assigned_agent, context)
except Exception as e:
# Handle task creation or execution errors
return self.i18n.errors("agent_tool_execution_error").format(
agent_role=self.sanitize_agent_name(agent.role),
error=str(e)
)

View File

@@ -33,7 +33,8 @@
"tool_usage_error": "I encountered an error: {error}",
"tool_arguments_error": "Error: the Action Input is not a valid key, value dictionary.",
"wrong_tool_name": "You tried to use the tool {tool}, but it doesn't exist. You must use one of the following tools, use one at time: {tools}.",
"tool_usage_exception": "I encountered an error while trying to use the tool. This was the error: {error}.\n Tool {tool} accepts these inputs: {tool_inputs}"
"tool_usage_exception": "I encountered an error while trying to use the tool. This was the error: {error}.\n Tool {tool} accepts these inputs: {tool_inputs}",
"agent_tool_execution_error": "Error executing task with agent '{agent_role}'. Error: {error}"
},
"tools": {
"delegate_work": "Delegate a specific task to one of the following coworkers: {coworkers}\nThe input to this tool should be the coworker, the task you want them to do, and ALL necessary context to execute the task, they know nothing about the task, so share absolute everything you know, don't reference things but instead explain them.",

View File

@@ -1,3 +1,5 @@
import json
import logging
from typing import Any, List, Optional
from pydantic import BaseModel, Field
@@ -5,6 +7,8 @@ from pydantic import BaseModel, Field
from crewai.agent import Agent
from crewai.task import Task
logger = logging.getLogger(__name__)
class PlanPerTask(BaseModel):
task: str = Field(..., description="The task for which the plan is created")
@@ -68,19 +72,39 @@ class CrewPlanner:
output_pydantic=PlannerTaskPydanticOutput,
)
def _get_agent_knowledge(self, task: Task) -> List[str]:
"""
Safely retrieve knowledge source content from the task's agent.
Args:
task: The task containing an agent with potential knowledge sources
Returns:
List[str]: A list of knowledge source strings
"""
try:
if task.agent and task.agent.knowledge_sources:
return [source.content for source in task.agent.knowledge_sources]
except AttributeError:
logger.warning("Error accessing agent knowledge sources")
return []
def _create_tasks_summary(self) -> str:
"""Creates a summary of all tasks."""
tasks_summary = []
for idx, task in enumerate(self.tasks):
tasks_summary.append(
f"""
knowledge_list = self._get_agent_knowledge(task)
task_summary = f"""
Task Number {idx + 1} - {task.description}
"task_description": {task.description}
"task_expected_output": {task.expected_output}
"agent": {task.agent.role if task.agent else "None"}
"agent_goal": {task.agent.goal if task.agent else "None"}
"task_tools": {task.tools}
"agent_tools": {task.agent.tools if task.agent else "None"}
"""
)
"agent_tools": %s%s""" % (
f"[{', '.join(str(tool) for tool in task.agent.tools)}]" if task.agent and task.agent.tools else '"agent has no tools"',
f',\n "agent_knowledge": "[\\"{knowledge_list[0]}\\"]"' if knowledge_list and str(knowledge_list) != "None" else ""
)
tasks_summary.append(task_summary)
return " ".join(tasks_summary)

View File

@@ -0,0 +1,243 @@
interactions:
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View File

@@ -391,6 +391,71 @@ def test_manager_agent_delegating_to_all_agents():
)
@pytest.mark.vcr(filter_headers=["authorization"])
def test_manager_agent_delegates_with_varied_role_cases():
"""
Test that the manager agent can delegate to agents regardless of case or whitespace variations in role names.
This test verifies the fix for issue #1503 where role matching was too strict.
"""
# Create agents with varied case and whitespace in roles
researcher_spaced = Agent(
role=" Researcher ", # Extra spaces
goal="Research with spaces in role",
backstory="A researcher with spaces in role name",
allow_delegation=False,
)
writer_caps = Agent(
role="SENIOR WRITER", # All caps
goal="Write with caps in role",
backstory="A writer with caps in role name",
allow_delegation=False,
)
task = Task(
description="Research and write about AI. The researcher should do the research, and the writer should write it up.",
expected_output="A well-researched article about AI.",
agent=researcher_spaced, # Assign to researcher with spaces
)
crew = Crew(
agents=[researcher_spaced, writer_caps],
process=Process.hierarchical,
manager_llm="gpt-4o",
tasks=[task],
)
mock_task_output = TaskOutput(
description="Mock description",
raw="mocked output",
agent="mocked agent"
)
task.output = mock_task_output
with patch.object(Task, 'execute_sync', return_value=mock_task_output) as mock_execute_sync:
crew.kickoff()
# Verify execute_sync was called once
mock_execute_sync.assert_called_once()
# Get the tools argument from the call
_, kwargs = mock_execute_sync.call_args
tools = kwargs['tools']
# Verify the delegation tools were passed correctly and can handle case/whitespace variations
assert len(tools) == 2
# Check delegation tool descriptions (should work despite case/whitespace differences)
delegation_tool = tools[0]
question_tool = tools[1]
assert "Delegate a specific task to one of the following coworkers:" in delegation_tool.description
assert " Researcher " in delegation_tool.description or "SENIOR WRITER" in delegation_tool.description
assert "Ask a specific question to one of the following coworkers:" in question_tool.description
assert " Researcher " in question_tool.description or "SENIOR WRITER" in question_tool.description
@pytest.mark.vcr(filter_headers=["authorization"])
def test_crew_with_delegating_agents():
tasks = [
@@ -1941,6 +2006,90 @@ def test_crew_log_file_output(tmp_path):
assert test_file.exists()
@pytest.mark.vcr(filter_headers=["authorization"])
def test_crew_output_file_end_to_end(tmp_path):
"""Test output file functionality in a full crew context."""
# Create an agent
agent = Agent(
role="Researcher",
goal="Analyze AI topics",
backstory="You have extensive AI research experience.",
allow_delegation=False,
)
# Create a task with dynamic output file path
dynamic_path = tmp_path / "output_{topic}.txt"
task = Task(
description="Explain the advantages of {topic}.",
expected_output="A summary of the main advantages, bullet points recommended.",
agent=agent,
output_file=str(dynamic_path),
)
# Create and run the crew
crew = Crew(
agents=[agent],
tasks=[task],
process=Process.sequential,
)
crew.kickoff(inputs={"topic": "AI"})
# Verify file creation and cleanup
expected_file = tmp_path / "output_AI.txt"
assert expected_file.exists(), f"Output file {expected_file} was not created"
@pytest.mark.vcr(filter_headers=["authorization"])
def test_crew_output_file_validation_failures():
"""Test output file validation failures in a crew context."""
agent = Agent(
role="Researcher",
goal="Analyze data",
backstory="You analyze data files.",
allow_delegation=False,
)
# Test path traversal
with pytest.raises(ValueError, match="Path traversal"):
task = Task(
description="Analyze data",
expected_output="Analysis results",
agent=agent,
output_file="../output.txt"
)
Crew(agents=[agent], tasks=[task]).kickoff()
# Test shell special characters
with pytest.raises(ValueError, match="Shell special characters"):
task = Task(
description="Analyze data",
expected_output="Analysis results",
agent=agent,
output_file="output.txt | rm -rf /"
)
Crew(agents=[agent], tasks=[task]).kickoff()
# Test shell expansion
with pytest.raises(ValueError, match="Shell expansion"):
task = Task(
description="Analyze data",
expected_output="Analysis results",
agent=agent,
output_file="~/output.txt"
)
Crew(agents=[agent], tasks=[task]).kickoff()
# Test invalid template variable
with pytest.raises(ValueError, match="Invalid template variable"):
task = Task(
description="Analyze data",
expected_output="Analysis results",
agent=agent,
output_file="{invalid-name}/output.txt"
)
Crew(agents=[agent], tasks=[task]).kickoff()
@pytest.mark.vcr(filter_headers=["authorization"])
def test_manager_agent():
from unittest.mock import patch
@@ -3125,4 +3274,4 @@ def test_multimodal_agent_live_image_analysis():
# Verify we got a meaningful response
assert isinstance(result.raw, str)
assert len(result.raw) > 100 # Expecting a detailed analysis
assert "error" not in result.raw.lower() # No error messages in response
assert "error" not in result.raw.lower() # No error messages in response

View File

@@ -584,3 +584,28 @@ def test_docling_source_with_local_file():
docling_source = CrewDoclingSource(file_paths=[pdf_path])
assert docling_source.file_paths == [pdf_path]
assert docling_source.content is not None
def test_file_path_validation():
"""Test file path validation for knowledge sources."""
current_dir = Path(__file__).parent
pdf_path = current_dir / "crewai_quickstart.pdf"
# Test valid single file_path
source = PDFKnowledgeSource(file_path=pdf_path)
assert source.safe_file_paths == [pdf_path]
# Test valid file_paths list
source = PDFKnowledgeSource(file_paths=[pdf_path])
assert source.safe_file_paths == [pdf_path]
# Test both file_path and file_paths provided (should use file_paths)
source = PDFKnowledgeSource(file_path=pdf_path, file_paths=[pdf_path])
assert source.safe_file_paths == [pdf_path]
# Test neither file_path nor file_paths provided
with pytest.raises(
ValueError,
match="file_path/file_paths must be a Path, str, or a list of these types"
):
PDFKnowledgeSource()

View File

@@ -719,21 +719,24 @@ def test_interpolate_inputs():
task = Task(
description="Give me a list of 5 interesting ideas about {topic} to explore for an article, what makes them unique and interesting.",
expected_output="Bullet point list of 5 interesting ideas about {topic}.",
output_file="/tmp/{topic}/output_{date}.txt"
)
task.interpolate_inputs(inputs={"topic": "AI"})
task.interpolate_inputs(inputs={"topic": "AI", "date": "2024"})
assert (
task.description
== "Give me a list of 5 interesting ideas about AI to explore for an article, what makes them unique and interesting."
)
assert task.expected_output == "Bullet point list of 5 interesting ideas about AI."
assert task.output_file == "/tmp/AI/output_2024.txt"
task.interpolate_inputs(inputs={"topic": "ML"})
task.interpolate_inputs(inputs={"topic": "ML", "date": "2025"})
assert (
task.description
== "Give me a list of 5 interesting ideas about ML to explore for an article, what makes them unique and interesting."
)
assert task.expected_output == "Bullet point list of 5 interesting ideas about ML."
assert task.output_file == "/tmp/ML/output_2025.txt"
def test_interpolate_only():
@@ -872,3 +875,61 @@ def test_key():
assert (
task.key == hash
), "The key should be the hash of the non-interpolated description."
def test_output_file_validation():
"""Test output file path validation."""
# Valid paths
assert Task(
description="Test task",
expected_output="Test output",
output_file="output.txt"
).output_file == "output.txt"
assert Task(
description="Test task",
expected_output="Test output",
output_file="/tmp/output.txt"
).output_file == "tmp/output.txt"
assert Task(
description="Test task",
expected_output="Test output",
output_file="{dir}/output_{date}.txt"
).output_file == "{dir}/output_{date}.txt"
# Invalid paths
with pytest.raises(ValueError, match="Path traversal"):
Task(
description="Test task",
expected_output="Test output",
output_file="../output.txt"
)
with pytest.raises(ValueError, match="Path traversal"):
Task(
description="Test task",
expected_output="Test output",
output_file="folder/../output.txt"
)
with pytest.raises(ValueError, match="Shell special characters"):
Task(
description="Test task",
expected_output="Test output",
output_file="output.txt | rm -rf /"
)
with pytest.raises(ValueError, match="Shell expansion"):
Task(
description="Test task",
expected_output="Test output",
output_file="~/output.txt"
)
with pytest.raises(ValueError, match="Shell expansion"):
Task(
description="Test task",
expected_output="Test output",
output_file="$HOME/output.txt"
)
with pytest.raises(ValueError, match="Invalid template variable"):
Task(
description="Test task",
expected_output="Test output",
output_file="{invalid-name}/output.txt"
)

View File

@@ -0,0 +1,55 @@
from unittest.mock import MagicMock
import pytest
from crewai import Agent, Task
from crewai.tools.agent_tools.base_agent_tools import BaseAgentTool
class TestAgentTool(BaseAgentTool):
"""Concrete implementation of BaseAgentTool for testing."""
def _run(self, *args, **kwargs):
"""Implement required _run method."""
return "Test response"
@pytest.mark.parametrize("role_name,should_match", [
('Futel Official Infopoint', True), # exact match
(' "Futel Official Infopoint" ', True), # extra quotes and spaces
('Futel Official Infopoint\n', True), # trailing newline
('"Futel Official Infopoint"', True), # embedded quotes
(' FUTEL\nOFFICIAL INFOPOINT ', True), # multiple whitespace and newline
('futel official infopoint', True), # lowercase
('FUTEL OFFICIAL INFOPOINT', True), # uppercase
('Non Existent Agent', False), # non-existent agent
(None, False), # None agent name
])
def test_agent_tool_role_matching(role_name, should_match):
"""Test that agent tools can match roles regardless of case, whitespace, and special characters."""
# Create test agent
test_agent = Agent(
role='Futel Official Infopoint',
goal='Answer questions about Futel',
backstory='Futel Football Club info',
allow_delegation=False
)
# Create test agent tool
agent_tool = TestAgentTool(
name="test_tool",
description="Test tool",
agents=[test_agent]
)
# Test role matching
result = agent_tool._execute(
agent_name=role_name,
task='Test task',
context=None
)
if should_match:
assert "coworker mentioned not found" not in result.lower(), \
f"Should find agent with role name: {role_name}"
else:
assert "coworker mentioned not found" in result.lower(), \
f"Should not find agent with role name: {role_name}"

View File

@@ -0,0 +1,84 @@
"""
Tests for verifying the integration of knowledge sources in the planning process.
This module ensures that agent knowledge is properly included during task planning.
"""
from unittest.mock import patch
import pytest
from crewai.agent import Agent
from crewai.knowledge.source.string_knowledge_source import StringKnowledgeSource
from crewai.task import Task
from crewai.utilities.planning_handler import CrewPlanner
@pytest.fixture
def mock_knowledge_source():
"""
Create a mock knowledge source with test content.
Returns:
StringKnowledgeSource:
A knowledge source containing AI-related test content
"""
content = """
Important context about AI:
1. AI systems use machine learning algorithms
2. Neural networks are a key component
3. Training data is essential for good performance
"""
return StringKnowledgeSource(content=content)
@patch('crewai.knowledge.storage.knowledge_storage.chromadb')
def test_knowledge_included_in_planning(mock_chroma):
"""Test that verifies knowledge sources are properly included in planning."""
# Mock ChromaDB collection
mock_collection = mock_chroma.return_value.get_or_create_collection.return_value
mock_collection.add.return_value = None
# Create an agent with knowledge
agent = Agent(
role="AI Researcher",
goal="Research and explain AI concepts",
backstory="Expert in artificial intelligence",
knowledge_sources=[
StringKnowledgeSource(
content="AI systems require careful training and validation."
)
]
)
# Create a task for the agent
task = Task(
description="Explain the basics of AI systems",
expected_output="A clear explanation of AI fundamentals",
agent=agent
)
# Create a crew planner
planner = CrewPlanner([task], None)
# Get the task summary
task_summary = planner._create_tasks_summary()
# Verify that knowledge is included in planning when present
assert "AI systems require careful training" in task_summary, \
"Knowledge content should be present in task summary when knowledge exists"
assert '"agent_knowledge"' in task_summary, \
"agent_knowledge field should be present in task summary when knowledge exists"
# Verify that knowledge is properly formatted
assert isinstance(task.agent.knowledge_sources, list), \
"Knowledge sources should be stored in a list"
assert len(task.agent.knowledge_sources) > 0, \
"At least one knowledge source should be present"
assert task.agent.knowledge_sources[0].content in task_summary, \
"Knowledge source content should be included in task summary"
# Verify that other expected components are still present
assert task.description in task_summary, \
"Task description should be present in task summary"
assert task.expected_output in task_summary, \
"Expected output should be present in task summary"
assert agent.role in task_summary, \
"Agent role should be present in task summary"

View File

@@ -1,10 +1,14 @@
from unittest.mock import patch
from typing import Optional
from unittest.mock import MagicMock, patch
import pytest
from pydantic import BaseModel
from crewai.agent import Agent
from crewai.knowledge.source.string_knowledge_source import StringKnowledgeSource
from crewai.task import Task
from crewai.tasks.task_output import TaskOutput
from crewai.tools.base_tool import BaseTool
from crewai.utilities.planning_handler import (
CrewPlanner,
PlannerTaskPydanticOutput,
@@ -92,7 +96,72 @@ class TestCrewPlanner:
tasks_summary = crew_planner._create_tasks_summary()
assert isinstance(tasks_summary, str)
assert tasks_summary.startswith("\n Task Number 1 - Task 1")
assert tasks_summary.endswith('"agent_tools": []\n ')
assert '"agent_tools": "agent has no tools"' in tasks_summary
# Knowledge field should not be present when empty
assert '"agent_knowledge"' not in tasks_summary
@patch('crewai.knowledge.storage.knowledge_storage.chromadb')
def test_create_tasks_summary_with_knowledge_and_tools(self, mock_chroma):
"""Test task summary generation with both knowledge and tools present."""
# Mock ChromaDB collection
mock_collection = mock_chroma.return_value.get_or_create_collection.return_value
mock_collection.add.return_value = None
# Create mock tools with proper string descriptions and structured tool support
class MockTool(BaseTool):
name: str
description: str
def __init__(self, name: str, description: str):
tool_data = {"name": name, "description": description}
super().__init__(**tool_data)
def __str__(self):
return self.name
def __repr__(self):
return self.name
def to_structured_tool(self):
return self
def _run(self, *args, **kwargs):
pass
def _generate_description(self) -> str:
"""Override _generate_description to avoid args_schema handling."""
return self.description
tool1 = MockTool("tool1", "Tool 1 description")
tool2 = MockTool("tool2", "Tool 2 description")
# Create a task with knowledge and tools
task = Task(
description="Task with knowledge and tools",
expected_output="Expected output",
agent=Agent(
role="Test Agent",
goal="Test Goal",
backstory="Test Backstory",
tools=[tool1, tool2],
knowledge_sources=[
StringKnowledgeSource(content="Test knowledge content")
]
)
)
# Create planner with the new task
planner = CrewPlanner([task], None)
tasks_summary = planner._create_tasks_summary()
# Verify task summary content
assert isinstance(tasks_summary, str)
assert task.description in tasks_summary
assert task.expected_output in tasks_summary
assert '"agent_tools": [tool1, tool2]' in tasks_summary
assert '"agent_knowledge": "[\\"Test knowledge content\\"]"' in tasks_summary
assert task.agent.role in tasks_summary
assert task.agent.goal in tasks_summary
def test_handle_crew_planning_different_llm(self, crew_planner_different_llm):
with patch.object(Task, "execute_sync") as execute: