System Prompts Leaks: A GitHub repository documenting hidden instructions behind major AI chatbots
Summary
A GitHub repository that systematically collects, documents, and tracks system prompt instructions from major AI chatbots including Anthropic (Claude Fable 5, Opus 4.8, Claude Code, Claude Design), OpenAI (ChatGPT 5.5 Thinking, GPT 5.5 Instant, Codex), Google (Gemini 3.5 Flash, 3.1 Pro, Antigravity), xAI (Grok), and others like Cursor, Copilot, VS Code, Perplexity. The repo is actively maintained with 599 commits and was featured in The Washington Post for revealing the hidden rules behind AI systems.
Source
bskySystem Prompts Leaks: A GitHub repository documenting hidden instructions behind major AI chatbotsgithub.comKey quotes
· 2 pulledSee the hidden rules behind AI. Then use them to rewrite this article. (May 11, 2026) — The Washington Post
The purpose of this repo is to document the System Prompt instructions for all the AI chatbots out there - Claude, ChatGPT, Gemini etc.
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