What problem does it solve? Shared documentation folders become hard to navigate as they grow, and inconsistent frontmatter breaks discovery. This Skill scans a directory of Markdown docs, validates their metadata against a schema, and regenerates a single INDEX.md so other tools and agents can find relevant documents without reading every file. ## Core Features & Use Cases - Frontmatter validation: Checks required fields (title, type, status, owner, created) against the repository's type/status vocabulary, with a --fix mode that auto-fills inferrable values from git history and file stats. - INDEX.md generation: Writes a sorted, grep-friendly index with inline status, owner, and tag metadata; it is the sole writer of INDEX.md files. - Stale document auditing: The --stale flag surfaces expired docs or files untouched for over 90 days. - Use Case: After publishing several new runbooks to a shared knowledge base, run the index skill on that directory to validate their frontmatter and regenerate the INDEX.md so teammates and bots can discover them. ## Quick Start Ask the agent to run the index skill on your documentation directory, for example: index the docs/knowledge folder and fix any missing frontmatter fields.