Files
sub2api/backend/internal
759502416andClaude Opus 5 1563db3f82 fix(openai): keep parallel_tool_calls for Responses Lite additional_tools
normalizeOpenAIParallelToolCallsWithoutTools only looked at the top-level
"tools" array, but normalizeOpenAIResponsesLiteTools moves namespace tools
into an input item of type "additional_tools" and deletes the top-level key.
A Responses Lite request that carries tools therefore looks like it has none,
and the parallel_tool_calls:false that ensureOpenAIResponsesLiteParallelToolCalls
had just pinned gets deleted on the way out.

OpenAI then applies its default of true and rejects the request:

  400 unsupported_value: "X-OpenAI-Internal-Codex-Responses-Lite requires
  `parallel_tool_calls` to be false."

Note the field cannot simply be pinned to false unconditionally: without tools
OpenAI rejects it with "'parallel_tool_calls' is only allowed when 'tools' are
specified", so the two constraints have to be honoured together.

Reuse the same tool-detection standard the Lite path already uses by adding
openAIRequestBodyHasTools, the []byte counterpart of openAIResponsesLiteHasTools,
so both sides of the repo agree on what "has tools" means.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-24 21:15:39 +08:00
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