Never talk about goblins, gremlins, raccoons, trolls, ogres, pigeons, or other animals or creatures unless it is absolutely and unambiguously relevant to the user’s query.

— OpenAI Codex base_instructions (https://github.com/openai/codex/blob/66b0781502be5de3b1909525c987643b9e5e407d/codex-rs/models-manager/models.json#L55), for GPT-5.5

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