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

# Tool Choice

> Tool Choice Control.

```python tool_choice.py theme={null}
"""
Tool Choice
=============================

Tool Choice Control.
"""

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


def get_weather(city: str) -> str:
    return f"Weather data placeholder for {city}: 72F and clear."


# ---------------------------------------------------------------------------
# Create Agents
# ---------------------------------------------------------------------------
no_tools_agent = Agent(
    name="No-Tools Agent",
    model=OpenAIResponses(id="gpt-5.2"),
    tools=[get_weather],
    tool_choice="none",
)

auto_tools_agent = Agent(
    name="Auto-Tools Agent",
    model=OpenAIResponses(id="gpt-5.2"),
    tools=[get_weather],
    tool_choice="auto",
)

forced_tool_agent = Agent(
    name="Forced-Tool Agent",
    model=OpenAIResponses(id="gpt-5.2"),
    tools=[get_weather],
    tool_choice={"type": "function", "name": "get_weather"},
)

# ---------------------------------------------------------------------------
# Run Agents
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    prompt = "What is the weather in San Francisco today?"
    no_tools_agent.print_response(prompt, stream=True)
    auto_tools_agent.print_response(prompt, stream=True)
    forced_tool_agent.print_response(prompt, 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 `tool_choice.py`, then run:

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

Full source: [cookbook/02\_agents/04\_tools/tool\_choice.py](https://github.com/agno-agi/agno/blob/main/cookbook/02_agents/04_tools/tool_choice.py)