So Claude Code's Source Code Was Just Leaked...

Published: 02 April 2026
on channel: ForrestKnight

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So Claude Code's source code has been leaked. A person by the name of Chaofan Shou found that Claude Code's npm package included a source map file. Which is a JSON file that, well, quite literally contains all of the original source code embedded inside it.

Sources
Chaofan Shou's original post: https://x.com/Fried_rice/status/20388...
Kuber Mehta writeup: https://kuber.studio/blog/AI/Claude-C...
Rust/Python rewrite (claw-code): https://github.com/instructkr/claw-code
VentureBeat analysis: https://venturebeat.com/technology/cl...
Fortune coverage (source leak): https://fortune.com/2026/03/31/anthro...
Fortune coverage (CMS leak): https://fortune.com/2026/03/26/anthro...
The Register (with Anthropic statement): https://www.theregister.com/2026/03/3...
Alex Kim's technical breakdown: https://alex000kim.com/posts/2026-03-...
Rohan's code quality analysis: https://x.com/rohan_2502/status/20389...
Bun bug discussion: https://github.com/oven-sh/bun/issues...

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