Claude Code's CLI source code has leaked all over the internet after a human error

Pesky humans.
ExtremeTech

Claude Code's Own Full Source Code Leaked

A simple human mistake has revealed all 500,000+ lines of code that make up Claude Code. How big a deal is that, really?

Entire Claude Code CLI source code leaks thanks to exposed map file

The entire source code for Anthropic’s Claude Code command line interface application (not the models themselves) has been ...

Anthropic's AI coding tool leaks its own source code for the second time in a year

A researcher flagged the issue on 31 March 2026, and the code has since been archived on multiple public repositories, ...

Source Code for Anthropic’s Claude Code Leaks at the Exact Wrong Time

After details of a yet-to-be-announced model were revealed due to the company leaving unpublished drafts of documents and ...
Decrypt

Anthropic Accidentally Leaked Claude Code's Source—The Internet Is Keeping It Forever

Anthropic is scrambling to contain the leak, but the AI coding agent is spreading far and wide and being picked apart.
The Hacker News

Claude Code Source Leaked via npm Packaging Error, Anthropic Confirms

Claude Code 2.1.88 leak exposed 512,000 lines via npm error, fueling supply chain risks and typosquatting attacks.
InfoWorld

Anthropic employee error exposes Claude Code source

A version of the AI coding tool in Anthropic's npm registry included a source map file, which leads to the full proprietary ...

Anthropic releases safer Claude Code 'auto mode' to avoid mass file deletions and other AI snafus

Anthropic has begun previewing "auto mode" inside of Claude Code. The company describes the new feature as a middle path ...
Make Tech Easier

I Replaced Claude Code With Codex, And I Should Have Done It Sooner

Swapping Claude Code for Codex turned out to be an easy win, with faster results, lower token usage, and a smoother workflow.