Anthropic accidentally leaked the entire source code for its Claude Code CLI tool via an exposed source map file in an npm package release. The leak includes nearly 2,000 TypeScript files and over 512,000 lines of code, revealing internal architecture details. While no customer data was compromised, the incident provides competitors with valuable insights into Anthropic's proprietary systems.
Background
Source maps are files that help developers debug minified code by mapping it back to original source code, but if exposed publicly they can reveal proprietary codebases. Anthropic's Claude Code is a coding assistant tool separate from their core AI models.
- Source
- Ars Technica
- Published
- Apr 1, 2026 at 03:09 AM
- Score
- 7.0 / 10