Here's the full system prompt for Claude Opus-5.5!! The total count of everything…

This is a dev post classified by Jev as Security (a tool drop), kept by the Dev Radar because it carries real work, not commentary.
🚰 SYSTEM PROMPT LEAK 🚰 Here's the full system prompt for Claude Opus-5.5!! The total count of everything extracted, including all tools, comes in at over 1.9M characters! 🤯 Lots to dig into here. Enjoy! 🫡 Link: https://github.com/elder-plinius/CL4R1T4S/blob/main/ANTHROPIC/CLAUDE-OPUS-5.5.md gg
Posted by Pliny the Liberator 🐉󠅫󠄼󠄿󠅆󠄵󠄐󠅀󠄼󠄹󠄾󠅉󠅭 (241k followers) 1 h ago · 1.2k likes · 60.9k views · view the original post on X. Kept by the Dev Radar as Security. Tools mentioned: cl4r1t4s.
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