Bash is all you need — a nano Claude Code-like agent harness, built from 0 to 1.
About the project
learn-claude-code is an educational project that builds a small Claude Code-like agent harness from scratch, showing how model access is combined with the surrounding code that lets an agent perceive, reason, and act in an environment. It is for people learning to develop real AI agents. The catalogue add-ons support workflows built around this agent harness.
Design and build AI agents for any domain. Use when users: (1) ask to "create an agent", "build an assistant", or "design an AI system" (2) want to understand agent architecture, agentic patterns, or autonomous AI (3) need help with capabilities, subagents, planning, or skill mechanisms (4) ask about Claude Code…
Perform thorough code reviews with security, performance, and maintainability analysis. Use when user asks to review code, check for bugs, or audit a codebase.
Build MCP (Model Context Protocol) servers that give Claude new capabilities. Use when user wants to create an MCP server, add tools to Claude, or integrate external services.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: