Scan

Generates and maintains two critical files for agent-driven repos: project-doc.md (a structured architecture blueprint) and AGENTS.md (project-specific instructions every agent reads before working). Runs a full codebase scan on first use, then switches to smart delta scans that only re-analyze changed files via git diff. The clever bit is architectural change detection: it only updates AGENTS.md when it spots new frameworks, directory patterns, or major dependencies, and asks for human confirmation first. Optionally hooks into understand-anything for deeper semantic analysis and context-mode to keep large outputs out of your context window. Honestly feels like the kind of thing you'd write yourself after the third time onboarding someone to a complex repo and realizing the docs are stale again.