harness-documentation

Generate and maintain AI-friendly project architecture documentation, complete with Mermaid diagrams for architecture, data flows, sequences, and state. Use this skill whenever the user asks to scaffold project docs, create an ARCHITECTURE.md, AGENTS.md, design docs, execution plans, product specs, or any kind of structured project documentation meant to give an AI (or human) full context on a codebase. The skill scaffolds docs that don't exist yet and updates docs that already do. Also trigger when the user asks to audit, update, regenerate, or add diagrams to existing project documentation, or when they mention "project docs", "architecture docs", "documentation structure", "document my project", "codebase docs", "AI context docs", "architecture diagram", "mermaid diagram", "flow diagram", or similar. Even if they just say "set up docs" or "I need docs for my project" — use this skill.