This `"RootModel"` key is non-standard and will cause any real OpenAI-compatible client to fail.

[markstur]

This "RootModel" key is non-standard and will cause any real OpenAI-compatible client to fail.

The standard OpenAI tool format sends parameters as a bare JSON Schema object:

"parameters": {
    "type": "object",
    "properties": { ... },
    "required": [...]
}

This server requires the non-standard {"parameters": {"RootModel": {...}}} envelope because FunctionParameters in cli/serve/models.py defines RootModel as a literal field name rather than accepting the schema directly. Any client using the OpenAI SDK, LangChain, or the standard tool format will get a Pydantic validation error.

This is a pre-existing issue in models.py, but this PR introduces the first public examples that document and normalise the non-standard shape. Worth opening a tracked issue to fix FunctionParameters to accept a bare dict[str, Any] before these examples become the established pattern.

Originally posted by @planetf1 in #850 (comment)