Build Claude Code

Build Claude Code

Courses
Released

49 progressive lessons teaching you to build a complete AI Agent CLI product architecturally comparable to Claude Code, starting from npm init. Each lesson produces a standalone runnable snapshot.

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Build Claude Code screenshot
Build Claude Code screenshot

Highlights

  • 49 lessons from API basics to telemetry diagnostics
  • Each lesson produces a standalone runnable snapshot
  • Interactive source viewer + terminal recording player
  • Covers tool systems, prompt engineering, security, multi-agent collaboration

Tech Stack

TypeScript Node.js Next.js 16 React 19 Tailwind CSS Anthropic SDK