Claude Code's source code appears to have leaked: here's what we know

The leak provides competitors—from established giants to nimble rivals like Cursor—a literal blueprint for how to build a ...

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After details of a yet-to-be-announced model were revealed due to the company leaving unpublished drafts of documents and ...

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 ...

Claude Code source code leak: Did Anthropic just expose its AI secrets, hidden models, and undercover coding strategy to the world?

Claude Code, Anthropic’s top AI agent, just suffered a major source code leak. Version 2.1.88 exposed 512,000 lines of ...

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A researcher flagged the issue on 31 March 2026, and the code has since been archived on multiple public repositories, ...
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Anthropic Leaks Claude Code Source via Npm Source Map

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