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

# Stop After Tool Call

> Stop the agent run immediately after a tool call with @tool(stop_after_tool_call=True).

```python stop_after_tool_call.py theme={null}
"""
Stop After Tool Call
=============================

Demonstrates stop after tool call.
"""

from agno.agent import Agent
from agno.tools import tool

# ---------------------------------------------------------------------------
# Create Agent
# ---------------------------------------------------------------------------


@tool(stop_after_tool_call=True)
def get_answer_to_life_universe_and_everything() -> str:
    """
    This returns the answer to the life, the universe and everything.
    """
    return "42"


agent = Agent(
    tools=[get_answer_to_life_universe_and_everything],
    markdown=True,
)

# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    agent.print_response("What is the answer to life, the universe and everything?")
```

## 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 `stop_after_tool_call.py`, then run:

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

Full source: [cookbook/91\_tools/tool\_decorator/stop\_after\_tool\_call.py](https://github.com/agno-agi/agno/blob/main/cookbook/91_tools/tool_decorator/stop_after_tool_call.py)