> ## 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.

# Team Callable Members

> Pass a function as `members` to a Team.

Pass a function as `members` to a Team. The team composition is decided at run time based on session\_state.

```python team_callable_members.py theme={null}
"""
Team Callable Members
=====================
Pass a function as `members` to a Team. The team composition
is decided at run time based on session_state.
"""

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

# ---------------------------------------------------------------------------
# Create the Team Members
# ---------------------------------------------------------------------------

writer = Agent(
    name="Writer",
    role="Content writer",
    model=OpenAIResponses(id="gpt-5-mini"),
    instructions=["Write clear, concise content."],
)

researcher = Agent(
    name="Researcher",
    role="Research analyst",
    model=OpenAIResponses(id="gpt-5-mini"),
    instructions=["Research topics and summarize findings."],
)


def pick_members(session_state: dict):
    """Include the researcher only when needed."""
    needs_research = session_state.get("needs_research", False)
    print(f"--> needs_research={needs_research}")

    if needs_research:
        return [researcher, writer]
    return [writer]


# ---------------------------------------------------------------------------
# Create the Team
# ---------------------------------------------------------------------------

team = Team(
    name="Content Team",
    model=OpenAIResponses(id="gpt-5-mini"),
    members=pick_members,
    cache_callables=False,
    instructions=["Coordinate the team to complete the task."],
)


# ---------------------------------------------------------------------------
# Run the Team
# ---------------------------------------------------------------------------

if __name__ == "__main__":
    print("=== Writer only ===")
    team.print_response(
        "Write a haiku about Python",
        session_state={"needs_research": False},
        stream=True,
    )

    print("\n=== Researcher + Writer ===")
    team.print_response(
        "Research the history of Python and write a short summary",
        session_state={"needs_research": True},
        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 `team_callable_members.py`, then run:

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

Full source: [cookbook/02\_agents/04\_tools/03\_team\_callable\_members.py](https://github.com/agno-agi/agno/blob/main/cookbook/02_agents/04_tools/03_team_callable_members.py)