mirror of
https://github.com/farion1231/cc-switch.git
synced 2026-07-27 08:14:33 +08:00
Jason
84aa87c3dd
The Chat-Completions transformer used to forward tool_choice verbatim,
but the two APIs disagree on shape:
Anthropic "any" | {"type":"tool","name":"X"}
OpenAI Chat "required" | {"type":"function","function":{"name":"X"}}
Pass-through made the upstream return 400 for any tool-forcing client
(Claude Code, Copilot, etc.). The Responses-API transformer already had
the equivalent map_tool_choice_to_responses helper; this commit adds a
sibling map_tool_choice_to_chat with the chat-specific *nested* function
selector and five regression tests covering string / object × any /
auto / none / tool.
The two helpers are intentionally not merged: the difference between
flat and nested function selectors is exactly what the original bug
was, so keeping them as separate self-documenting functions reduces the
chance of the same regression returning.