Claude Code's entire source code has been leaked and the internet is up in arms.

Anthropic has accidentally exposed Claude Code's full 512,000-line TypeScript source via an npm source map, revealing ...

Would you like a closer look at Claude? Someone at Anthropic has some explaining to do, as the official npm package for ...

I like to imagine someone at Anthropic realising, just a little too late, that Claude Code had essentially hit "reply all" on ...

A researcher flagged the issue on 31 March 2026, and the code has since been archived on multiple public repositories, ...