> ## Documentation Index
> Fetch the complete documentation index at: https://agno-v2-service-account.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Dynamic Tools

> Build the tool list at runtime from a function that reads session state off the RunContext.

```python dynamic_tools.py theme={null}
"""
Dynamic Tools
=============================

Dynamic Tools.
"""

from datetime import datetime, timezone

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


def get_runtime_tools(run_context: RunContext):
    """Return tools dynamically based on session state."""

    def get_time() -> str:
        return datetime.now(timezone.utc).isoformat()

    def get_project() -> str:
        project = (run_context.session_state or {}).get("project", "unknown")
        return f"Current project: {project}"

    return [get_time, get_project]


# ---------------------------------------------------------------------------
# Create Agent
# ---------------------------------------------------------------------------
agent = Agent(
    name="Dynamic Tools Agent",
    model=OpenAIResponses(id="gpt-5.2"),
    tools=get_runtime_tools,
)

# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    agent.print_response(
        "Use available tools to report current context.",
        session_state={"project": "cookbook-restructure"},
        stream=True,
    )
```

## Run the Example

<Steps>
  <Snippet file="create-venv-step.mdx" />

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

  <Step title="Export your OpenAI API key">
    <CodeGroup>
      ```bash Mac/Linux theme={null}
      export OPENAI_API_KEY="your_openai_api_key_here"
      ```

      ```bash Windows theme={null}
      $Env:OPENAI_API_KEY="your_openai_api_key_here"
      ```
    </CodeGroup>
  </Step>

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

    ```bash theme={null}
    python dynamic_tools.py
    ```
  </Step>
</Steps>

Full source: [cookbook/02\_agents/15\_dependencies/dynamic\_tools.py](https://github.com/agno-agi/agno/blob/main/cookbook/02_agents/15_dependencies/dynamic_tools.py)