learn-claude-code

educational repo. “bash is all you need — a nano Claude Code–like agent, built from 0 to 1.”

what it teaches

• prompt loop
• tool calling
• file editing
• error handling

all in pure bash. no abstractions.

why it matters

coding agents aren’t magic. they’re loops + string parsing + subprocess calls. this repo demystifies the stack.

the Feynman technique for agentic coding: if you can’t build it from scratch, you don’t really know it.

the best way to trust a tool is to understand how it breaks.