What problem does it solve? Keeping a skill marketplace's marketplace.json and README catalog synchronized with upstream external skill repositories is manual, error-prone work: refs drift, SHAs go stale, new upstream skills get missed, and removed ones linger. This Skill automates adding and updating git-subdir entries so the catalog always matches upstream reality. ## Core Features & Use Cases - Add mode: Discovers skill folders in a GitHub repo via the GitHub API, pins a tag or branch ref with its resolved SHA, and appends correctly formatted entries to marketplace.json. - Update mode: Reconciles existing entries against upstream — adding new skills, confirming removals, bumping SHAs, and refreshing descriptions. - README regeneration: Runs scripts/gen-readme.js to project the catalog from marketplace.json, then validates with claude plugin validate. - Use Case: You want to vendor a skill from owner/repo into your marketplace. Run the skill with the repo path and it discovers the skills, picks a Renovate-compatible ref, writes the entries, and regenerates the README in one pass. ## Quick Start Ask the assistant to add the skill from a specific GitHub owner and repository into this marketplace and regenerate the README catalog.
