Skill Index Sync

Keeps all index and overview documents in sync after any skill is added, deleted, or renamed.

Purpose

Propagate skill inventory changes to every index artifact so that _index.md files, README.md, and CLAUDE.md always reflect the current state of the library.

Trigger

Apply after:

• skill-maker creates a new skill
• skill-edit deletes or renames a skill, or changes its one-line description

Trigger keywords: "sync index files", "update skill index", "skill was added", "skill was renamed", "同步 skill 索引", "更新 skill 列表", "索引不同步"

Do NOT trigger when:

• Only the skill's internal steps, rules, or output format changed — those do not affect index content
• Only README.md or the category guide changed — use skill-readme-sync for that