Claude Code source code leak and clean room rewrites

Anthropic leaked 512,000 lines of Claude Code source code yesterday.

Anthropic accidentally leaked the TS source code of Claude Code (which is closed source). Repos sharing the source are taken down with DMCA.

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The Claude Code leak hit 110k+ GitHub stars in a day.

Anthropic built a whole system called "Undercover Mode" to stop Claude from accidentally leaking internal codenames in git commits. Then shipped the entire source code in the npm package.

I tried to push a change to add better navigation and accidentally leaked our entire Claude Code source code

What’s leaked is leaked. 70k forks, Python & Rust versions on GitHub, there’s no way back.

Anthropic’s official npm package for Claude Code had accidentally shipped a massive `.map` source map file. Boom — the entire ~512,000-line TypeScript codebase

Claude Code source code leak reveals internal model codenames and 44 feature flags.

At any other company, the person who just leaked 512,000 lines of source code, internal model codenames, and an entire product roadmap is clearing their desk by lunchtime.

Anthropic accidentally leaked the TS source code of Claude Code (which is closed source).

The entire Claude Code source code just leaked

Anthropic DMCA’d my Claude code fork.

AI is quietly erasing copyright.

Claude Code’s source code was leaked.

Claude Code's source files just leaked.

Just checked, this is an exact byte match to

A few take-aways from the Claude Code Leak:

Now that 500k+ lines of Claude Code are out there

Anthropic just accidentally dropped entire Claude Code source code 😬

wtf, biggest leak of the year. This is absolute insane.

I have a bizarre theory of how Anthropic leaked the Claude Code source code

Anthropic has DMCA'd more repos on Github than any other company.

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