# Dependencies In Tools (/examples/agents/dependencies/dependencies-in-tools)



Example showing how tools can access dependencies passed to the agent.

```python title="dependencies_in_tools.py"
"""
Dependencies In Tools
=============================

Example showing how tools can access dependencies passed to the agent.
"""

from datetime import datetime

from agno.agent import Agent
from agno.models.openai import OpenAIResponses
from agno.run import RunContext


def get_current_context() -> dict:
    """Get current contextual information like time, weather, etc."""
    return {
        "current_time": datetime.now().strftime("%Y-%m-%d %H:%M:%S"),
        "timezone": "PST",
        "day_of_week": datetime.now().strftime("%A"),
    }


def analyze_user(user_id: str, run_context: RunContext) -> str:
    """
    Analyze a specific user's profile and provide insights.

    This tool analyzes user behavior and preferences using available data sources.
    Call this tool with the user_id you want to analyze.

    Args:
        user_id: The user ID to analyze (e.g., 'john_doe', 'jane_smith')
        run_context: The run context containing dependencies (automatically provided)

    Returns:
        Detailed analysis and insights about the user
    """
    dependencies = run_context.dependencies
    if not dependencies:
        return "No data sources available for analysis."

    print(f"--> Tool received data sources: {list(dependencies.keys())}")

    results = [f"=== USER ANALYSIS FOR {user_id.upper()} ==="]

    # Use user profile data if available
    if "user_profile" in dependencies:
        profile_data = dependencies["user_profile"]
        results.append(f"Profile Data: {profile_data}")

        # Add analysis based on the profile
        if profile_data.get("role"):
            results.append(
                f"Professional Analysis: {profile_data['role']} with expertise in {', '.join(profile_data.get('preferences', []))}"
            )

    # Use current context data if available
    if "current_context" in dependencies:
        context_data = dependencies["current_context"]
        results.append(f"Current Context: {context_data}")
        results.append(
            f"Time-based Analysis: Analysis performed on {context_data['day_of_week']} at {context_data['current_time']}"
        )

    print(f"--> Tool returned results: {results}")

    return "\n\n".join(results)


# Create an agent with the analysis tool function
# ---------------------------------------------------------------------------
# Create Agent
# ---------------------------------------------------------------------------
agent = Agent(
    model=OpenAIResponses(id="gpt-5.2"),
    tools=[analyze_user],
    name="User Analysis Agent",
    description="An agent specialized in analyzing users using integrated data sources.",
    instructions=[
        "You are a user analysis expert with access to user analysis tools.",
        "When asked to analyze any user, use the analyze_user tool.",
        "This tool has access to user profiles and current context through integrated data sources.",
        "After getting tool results, provide additional insights and recommendations based on the analysis.",
        "Be thorough in your analysis and explain what the tool found.",
    ],
)

# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    print("=== Tool Dependencies Access Example ===\n")

    response = agent.run(
        input="Please analyze user 'john_doe' and provide insights about their professional background and preferences.",
        dependencies={
            "user_profile": {
                "name": "John Doe",
                "preferences": ["AI/ML", "Software Engineering", "Finance"],
                "location": "San Francisco, CA",
                "role": "Senior Software Engineer",
            },
            "current_context": get_current_context,
        },
        session_id="test_tool_dependencies",
    )

    print(f"\nAgent Response: {response.content}")
```

This example supplies one fixed John Doe profile; `user_id` labels the output but does not select or authorize a different profile. For multiple users, resolve profile data from a trusted identity before passing the dependency.

Replace `get_current_context()` with the following timezone-aware version. The original uses the host clock while labeling it `PST`.

```python
from datetime import datetime, timezone

def get_current_context() -> dict:
    now = datetime.now(timezone.utc)
    return {
        "current_time": now.isoformat(),
        "timezone": "UTC",
        "day_of_week": now.strftime("%A"),
    }
```

## Run the Example [#run-the-example]

<Steps>
    <Step title="Set up your virtual environment">
      <CodeBlockTabs defaultValue="Mac">
        <CodeBlockTabsList>
          <CodeBlockTabsTrigger value="Mac">
            Mac
          </CodeBlockTabsTrigger>

          <CodeBlockTabsTrigger value="Windows">
            Windows
          </CodeBlockTabsTrigger>
        </CodeBlockTabsList>

        <CodeBlockTab value="Mac">
          ```bash
          uv venv --python 3.12
          source .venv/bin/activate
          ```
        </CodeBlockTab>

        <CodeBlockTab value="Windows">
          ```bash
          uv venv --python 3.12
          .venv\Scripts\activate
          ```
        </CodeBlockTab>
      </CodeBlockTabs>
    </Step>

  <Step title="Install dependencies">
    ```bash
    uv pip install -U agno openai
    ```
  </Step>

  <Step title="Export your OpenAI API key">
    <CodeBlockTabs defaultValue="Mac/Linux">
      <CodeBlockTabsList>
        <CodeBlockTabsTrigger value="Mac/Linux">
          Mac/Linux
        </CodeBlockTabsTrigger>

        <CodeBlockTabsTrigger value="Windows">
          Windows
        </CodeBlockTabsTrigger>
      </CodeBlockTabsList>

      <CodeBlockTab value="Mac/Linux">
        ```bash
        export OPENAI_API_KEY="your_openai_api_key_here"
        ```
      </CodeBlockTab>

      <CodeBlockTab value="Windows">
        ```bash
        $Env:OPENAI_API_KEY="your_openai_api_key_here"
        ```
      </CodeBlockTab>
    </CodeBlockTabs>
  </Step>

  <Step title="Run the example">
    Save the code above as `dependencies_in_tools.py`, then run:

    ```bash
    python dependencies_in_tools.py
    ```
  </Step>
</Steps>

Full source: [cookbook/02\_agents/15\_dependencies/dependencies\_in\_tools.py](https://github.com/agno-agi/agno/blob/8f36eaf2d18e91afa7b327eec66a3cd3685dcb87/cookbook/02_agents/15_dependencies/dependencies_in_tools.py)