October 29, 2026
misalignment_policy_violation: the 403 code only hits agents on the Responses API

OpenAI's external misalignment monitor only covers the Responses API with tool use: Chat Completions isn't covered at all.
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October 29, 2026

OpenAI's external misalignment monitor only covers the Responses API with tool use: Chat Completions isn't covered at all.
Source
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