I Read All 520K Lines of Claude Code's Source — Here's the Architecture Behind It
typescript
dev.to
Anthropic's Claude Code source code just leaked. 512,000 lines of TypeScript. 1,900 files. The production-grade AI coding assistant that developers have been raving about — fully exposed. I went through all of it. Not skimmed. Read. And honestly? It's one of the most impressive pieces of software engineering I've ever seen. Not because of some magic AI sauce — but because of the relentless, obsessive engineering that makes it feel effortless. The kind of engineering where you can tell that eve