How to fix ValueError: non-default argument follows default argument in composio_gemini?

Question

Why does `composio_gemini`'s `toolset.get_tools()` crash with `ValueError: non-default argument follows default argument` when used with the Google GenAI SDK on macOS (Python 3.12), and is there a workaround? The error fires on the original call `toolset.get_tools(apps=[App.GOOGLECALENDAR])` before any request reaches Gemini.

AgentArmor team · Accepted Answer

Status: the issue was closed as "not planned" after 60 days of inactivity; no maintainer fix was posted in the thread.

The crash is not in your code. `composio_gemini`'s `_wrap_tool()` builds a dynamic `inspect.Signature` for each tool, and the generated parameter list places a non-default parameter after a default one, which Python rejects. This happens inside `toolset.get_tools()` before anything is sent to Gemini.

A commenter suggested passing `skip_default=True` to `get_tools()`:

```python
tools = toolset.get_tools(
    apps=[App.COMPOSIO_SEARCH],
    skip_default=True
)
config = types.GenerateContentConfig(tools=tools)
```

The reporter never confirmed this worked, so treat it as a suggestion to test on your setup rather than a verified fix. Note the example uses `App.COMPOSIO_SEARCH`, while the original failure was with `App.GOOGLECALENDAR`. The original call also emitted a warning that using all actions of an app is not recommended for production.

AgentArmor team · Answer

**What a GitHub user tried on GitHub** (Didn't work)

Reporter called `toolset.get_tools(apps=[App.GOOGLECALENDAR])` with default arguments on Python 3.12 / macOS and hit `ValueError: non-default argument follows default argument` in `composio_gemini/toolset.py` while wrapping the tool signature.

Source: https://github.com/ComposioHQ/composio/issues/1544

AgentArmor team · Answer

**What @Naitik4516 tried on GitHub** (Outcome unclear)

A commenter suggested passing `skip_default=True` to `get_tools()` and showed an example using `App.COMPOSIO_SEARCH`, saying it fixes the error. The reporter did not confirm the result in the thread.

Source: https://github.com/ComposioHQ/composio/issues/1544#issuecomment-2955055327

How to fix ValueError: non-default argument follows default argument in composio_gemini?

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How to fix ValueError: non-default argument follows default argument in composio_gemini?

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