I Analyzed Claude Code's Leaked Source — Here's...

On March 31, 2026, Anthropic's Claude Code source code leaked — again. A 60MB source map file (cli.js.map) was accidentally shipped in npm package v2.1.88, exposing ~1,900 TypeScript files and 512,000 lines of code. This is the second time this has happened. The first was February 2025. Instead of just reading the headlines, I did what any curious engineer would do: I read all of it. What I Found Claude Code is not what most people think. It's not a simple chat wrapper. It's a full agentic AI ru