Claude Code Source - Buildable Research Fork. Reverse-engineered build system, runnable with Bun.
Browse cluster: Cluster 120 →Claude Code is a reverse-engineered, buildable fork of the Claude Code source that was exposed via an npm source map leak on March 31, 2026. The project reconstructs the missing build system and fixes over 100 missing internal modules to make the original snapshot—which contained only raw TypeScript source with no compilation configuration—functional and runnable. Built in TypeScript and compiled with Bun, it implements an agentic loop that coordinates with a large language model through tool calls, featuring 40+ tools, a file-based memory system, Model Context Protocol server management, and a terminal UI built with React and Ink. The project is presented as educational and research material only and is not affiliated with or maintained by Anthropic.