$git clone https://github.com/Erikole21/refacil-sdd-aiSDD-AI (Specification-Driven Development with AI) packaged as a CLI. Installs skills and sub-agents for Claude Code, Cursor, Codex,OpenCode that guide the developer through a structured AI-assisted development workflow, using refacil-sdd/ as the specification store, plus a local bus so agents across different repos can communicate with each other.