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learn-claude-code

Open source

Learn to build a Claude Code-like agent harness from scratch with Bash, focusing on model-driven agency.

75kMIT

Bash is all you need - A nano claude code–like 「agent harness」, built from 0 to 1

Pros

  • +Educational: teaches harness engineering principles from first principles
  • +Hands-on: builds a nano agent harness from zero to one
  • +Well-documented: README available in multiple languages
  • +Popular: high star count indicates community interest

Cons

  • −Niche: focused on learning, not a production-ready tool
  • −Limited scope: only a nano harness, not full-featured
  • −Requires understanding of agent architecture concepts

Target audience: Developers and AI enthusiasts who want to understand and build agent harnesses from scratch.

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