tanbiralam/claude-code — repo contains the leaked source code for Anthropic's Cl

Version	Commit	Size	Downloads	Date
latestLatest	HEAD	9.4 MB	0	3h ago

Claude Code — Leaked Source (2026-03-31)

On March 31, 2026, the full source code of Anthropic's Claude Code CLI was leaked via a .map file exposed in their npm registry.

How It Leaked

Chaofan Shou (@Fried_rice) discovered the leak and posted it publicly:

"Claude code source code has been leaked via a map file in their npm registry!"

— @Fried_rice, March 31, 2026

The source map file in the published npm package contained a reference to the full, unobfuscated TypeScript source, which was downloadable as a zip archive from Anthropic's R2 storage bucket.

Overview

Claude Code is Anthropic's official CLI tool that lets you interact with Claude directly from the terminal to perform software engineering tasks — editing files, running commands, searching codebases, managing git workflows, and more.

This repository contains the leaked src/ directory.

Leaked on: 2026-03-31
Language: TypeScript
Runtime: Bun
Terminal UI: React + Ink (React for CLI)
Scale: ~1,900 files, 512,000+ lines of code

claude-code

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Claude Code — Leaked Source (2026-03-31)

How It Leaked

Overview