Claude Code Analysis Research

Skill by ara.so — Claude Code Skills collection.

Overview

The claude-code-analysis project is a comprehensive analysis of Anthropic's Claude Code leaked TypeScript source (513,237 lines across 1,902 files). On March 31, 2026, security researcher Chaofan Shou discovered that Anthropic's npm package included source maps, exposing the complete codebase.

This skill enables agents to:

• Navigate the leaked source structure and architecture
• Understand Claude Code's memory, tool call, and MCP implementations
• Analyze security mechanisms (sandbox, permissions)
• Compare Claude Code to competitors (Cursor, Aider, Codex)
• Reference implementation patterns and code evidence

Project Structure