Anthropic Accidentally Leaked the Entire Claude Code CLI Source Code

Samual Axon, reporting last week for Ars Technica: Early this morning, Anthropic published version 2.1.88 of Claude Code npm package — but it was quickly discovered that package included a source map file, which could be used to access the entirety of Claude Code’s source — almost 2,000 TypeScript files and more than 512,000 lines of code. Security researcher Chaofan Shou was the first to publicly point it out on X , with a link to an archive containing the files. The codebase was then put in a