What problem does it solve? Creating or retiring a skill in the A2MC repository requires updating three separate human-facing registries (the README skills table, the skills catalog, and the AGENTS.md capability table) in addition to writing the SKILL.md file itself, and it is easy to leave these out of sync. This skill walks through the full scaffold-and-register (or retire-and-de-register) procedure and verifies 4-way parity mechanically. ## Core Features & Use Cases - Skill scaffolding: Writes a compliant SKILL.md with validated frontmatter fields (name, description, visibility, category) and a mandatory trailing Changelog section. - Triple registry registration: Adds rows to the README "Current skills" table, docs/a2mc_reference/skills_catalog.md, and the AGENTS.md "At a glance" table, then runs tools/check_skill_registry.py to confirm disk-to-registry parity. - Symmetric retirement: Removes a skill from disk and all registries, prunes cross-references, and re-runs the drift check so no stale entries remain. - Use Case: When a recurring procedure appears across multiple dev logs, use this skill to distill it into a reusable, registered skill without leaving the registries half-updated. ## Quick Start Ask the agent to scaffold and register a new skill named for the recurring procedure you want to make reusable, then review the changes before committing.