shareAI-lab/learn-claude-code: Zero-to-One Agent Harness Tutorial Reaches 47.1K Stars as Claude Code Ecosystem Explodes
GitHub·medium signal
The learn-claude-code repository — a progressive tutorial building a nano Claude Code-like agent harness from scratch using only Bash — has surged to 47,141 stars. It demonstrates core harness mechanics including heartbeat, cron scheduling, multi-channel IM routing, persistent context memory, and personality systems. The repo's growth parallels the Anthropic Claude Code source leak driving intense interest in understanding harness internals.