Claude Code Leaked: What 512,000 Lines of TypeScript Taught the World About AI Agents
On March 31, 2026, Anthropic accidentally shipped the full Claude Code source — 512,000 lines of TypeScript — inside an npm package. The resulting clean-room rewrite became the fastest-growing GitHub repo in history. Here's exactly what the architecture reveals, and what you can take from it as an engineer.
AI AgentsClaude CodeTypeScript