Entire Claude Code CLI source code leaks thanks to exposed map file
512,000 lines of code that competitors and hobbyists will be studying for weeks.
https://arstechnica.com/ai/2026/03/entire-claude-code-cli-source-code-leaks-thanks-to-exposed-map-file/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social

@arstechnica Already "cleanroom" reimplemented by way of LLM which turns the output into public domain with no copyright claims possible per SCOTUS.

They "washed" the copyright off their flagship.

@arstechnica The App Store, Claude Code, It's always JavaScript

@arstechnica Here is the repo for anyone interested btw!

https://github.com/chatgptprojects/claude-code

GitHub - chatgptprojects/claude-code

Contribute to chatgptprojects/claude-code development by creating an account on GitHub.

GitHub
@stux @arstechnica wow. Did they take it down that quick? I see no code there.
@stux @arstechnica ah, it’s on another branch than main.