What problem does it solve? Agent-facing skill documentation for the @northguild/gmt date library drifts out of sync whenever the source API changes, causing agents to reference renamed, removed, or nonexistent functions. This Skill audits source changes and updates the skill files, artifact registries, and version metadata so downstream consumers always see an accurate API surface. ## Core Features & Use Cases - Change Auditing: Diffs packages/gmt/src/ against main, reads pending changesets, and builds a list of new, renamed, or removed exports that affect skill content. - Skill File Maintenance: Updates existing SKILL.md files (descriptions, code examples, version bumps, ICU notes) or scaffolds new skills when a change spans multiple domains. - Artifact Registry Updates: Keeps _artifacts/skill_tree.yaml and _artifacts/domain_map.yaml in sync with covers lists, tasks, and cross-references. - Validation & Staleness Checks: Runs intent validate and intent stale to enforce frontmatter schema, the 500-line cap, and version alignment. - Use Case: After adding a new relative-time formatting function to gmt, run this Skill to update the format-relative-time skill, bump library_version across all skills, refresh the domain map, and confirm validation passes. ## Quick Start Ask the agent to run the tanstack-intent skill to audit recent gmt source changes and update the affected skill files and artifacts.
