> ## Documentation Index
> Fetch the complete documentation index at: https://agno-v2.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

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

**1. Install dependencies**

```bash theme={null}
uv pip install -U agno openai
```

**2. Export your OpenAI API key**

```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"
```

**3. Run the example**

Save the code above as `stop_after_tool_call.py`, then run:

```bash theme={null}
python stop_after_tool_call.py
```

Full source: [cookbook/91\_tools/tool\_decorator/stop\_after\_tool\_call.py](https://github.com/agno-agi/agno/blob/v3.0.4/cookbook/91_tools/tool_decorator/stop_after_tool_call.py)


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.