macrozheng

Apr 10, 2026 · Artificial Intelligence

Inside Claude Code: How a 500k‑Line AI Programming Tool Leaked and What Its Architecture Reveals

The Claude Code source leak exposed over 500,000 lines of AI‑coding tool code, revealing its npm publishing mishap, the layered architecture built on React Ink, the ReAct‑style agent loop, sophisticated tool orchestration, multi‑tier memory management, context compression, security checks, feature flags, and even anti‑distillation defenses.