Mistral Function Calling And Tool Use

Workflow requires the next turn to call some tool (no plain text); the operator wants to force a tool call on /v1/chat/completions.

Set tool_choice='any' so the model must call one of the provided tools; to force a specific tool, pass tool_choice={type:'function',function:{name:...}}. Then handle the returned tool_calls[].

On a final summarization turn the operator wants the model to answer in prose and never call a tool, even though tools[] is still attached.

Set tool_choice='none' to force a text-only answer while keeping tool definitions in context; verify no tool_calls are returned before treating the content as the final answer.

An assistant turn returns two tool_calls (get_weather Paris, get_weather Lyon), each with a distinct id; the agent executes both.

Return one role=tool message per tool_call_id, matched exactly by id, before the next model turn. Every tool_call must be answered; the tool message must carry the matching tool_call_id.