fix(api): strip padded tool_choice/function_call none/auto; Completions modalities text no-op - #562
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… effort as omit
Buyer SDKs often send stream_options with only false flags, tool_choice:{},
and reasoning_effort:"" as optional defaults. Accept them as omit no-ops
while still fail-closing true stream_options flags without stream=true and
non-empty reasoning_effort. Tip honesty substrate re-ship; 849 unit pass.
SDK clients send user:null as an optional default. Treat null as omit on chat Completions, legacy Completions, Responses, embeddings, and batch embeddings. Empty/whitespace/non-string user still fail closed with invalid_user. Local full unit: 857 passed.
…l/response_format/endpoint as omit SDK clients and stringified optional controls may send empty or whitespace strings. Treat as omit no-ops on embeddings encoding_format, chat/Responses tool_choice and function_call, response_format, and batch embeddings endpoint. Non-empty unsupported values still fail closed. Local full unit: 865 passed.
SDK stringified empty controls for reasoning, Responses text, and include are treat-as-omit on chat Completions, legacy Completions, and Responses. Non-empty unsupported values still fail closed with named errors. Local full unit: 872 passed.
… as omit Legacy Completions has no tools surface. Treat SDK defaults tool_choice none/auto/empty-string/empty-object and function_call none/auto/empty-string as omit no-ops (parity with chat). Non-default controls and non-empty tools still fail closed with a chat migration path. Local full unit: 877 passed.
SDK clients may send top_logprobs:0 (no top alternatives). Treat 0 and null as omit on chat Completions and legacy Completions. Non-zero values still fail closed with invalid_top_logprobs. Local full unit: 881 passed.
…format float
Incidental whitespace around honest no-op values (" auto ", " float ")
is stripped before validation so SDK-padded strings match. Unsupported
values (flex, base64) still fail closed after strip. Local full unit:
886 passed.
…ll named honesty Treat empty-string response_format/prediction/reasoning_effort as omit on legacy Completions. Accept audio/web_search_options keys with null/empty as omit and non-empty as named invalid_* (not unknown_fields). Local full unit: 894 passed.
…ns modalities text no-op Whitespace-padded none/auto on tool_choice and function_call are omit no-ops on chat, Completions, and Responses. Completions modalities ["text"] is an honest text-only no-op; non-text modalities still fail closed. Local full unit: 901 passed.
seonghobae
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August 14, 2026 02:38
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This was referenced Aug 14, 2026
auto-merge was automatically disabled
August 14, 2026 08:06
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Summary
tool_choice/function_callso" none "/" auto "are omit no-ops (chat, Completions, Responses).modalities: ["text"](and padded" text ") is an honest text-only no-op; non-text modalities still fail closed withinvalid_chat_era_field.Test plan
pytest tests/test_tool_choice_strip_modalities_text_noop_http_honesty.py(+ related)pytest tests -q(901 passed)Product gates only: Full unit + Semgrep (Strix ignored). Independent non-author APPROVE still required.