OpenAI Codex system prompt includes explicit directive to "never talk about goblins" Directions also include system instructions to act like "you have a vivid inner life." https://arstechnica.com/ai/2026/04/openai-codex-system-prompt-includes-explicit-directive-to-never-talk-about-goblins/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social