I Analyzed All 512,000 Lines of Claude Code's...

On March 31st, 2026, security researcher Chaofan Shou -- an intern at blockchain security firm Fuzzland -- discovered something Anthropic probably didn't plan on sharing with the world: the entire source code of Claude Code, shipped as a sourcemap file inside the npm package. A 59.8 MB .map file in @anthropic-ai/claude-code version 2.1.88 -- a standard build artifact that maps minified code back to original source -- contained every TypeScript file, every internal prompt, every feature flag, and