OpenAI Codex base_instructions leak hints at GPT-5.5 constraints
Simon Willison surfaced a system prompt snippet allegedly from OpenAI Codex for GPT-5.5, forbidding discussion of animals unless directly relevant to the user's query.
The instruction is oddly specific—goblins, gremlins, raccoons, trolls, ogres, pigeons named explicitly—suggesting either jailbreak defense or a documented failure mode.