Skill Usage Review

Mission

Improve the skillpack from real usage evidence instead of intuition.

Trigger Rule

Use this skill when:

1. reviewing recent tasks for process quality
2. checking whether skills are being over-applied
3. deciding whether a skill should be split, merged, deprecated, or promoted
4. preparing a periodic maintenance report

Scope Boundary

This skill owns usage-pattern review and improvement recommendations.

Use Deprecation Management for deprecation lifecycle decisions. Use Thoroughly Rate Review for scoring quality.

Evidence Sources

Prefer existing artifacts:

1. docs/governance/*.governance.json
2. docs/governance/*.governance.md
3. skills/user-instructions.md
4. docs/handoffs/*.md when present
5. recent commit messages or release notes

Review Checks

1. most frequently selected skills
2. skills selected without clear task value
3. tasks missing expected safety or validation skills
4. skills never selected despite documented triggers
5. repeated user corrections or friction points
6. artifacts created but not maintained

Anti-Overuse Rules

Use when:

1. there is enough recent task evidence to review
2. process behavior is being tuned
3. the user asks whether the skillpack itself is working well

Do not use when:

1. there is no usage evidence yet
2. the task is a single implementation request
3. a direct policy fix is already obvious and bounded

Stop after:

1. usage findings are grouped by severity
2. concrete skill changes are proposed
3. no more than five next actions are recommended

Output Contract

When applying this skill, provide:

1. evidence reviewed
2. overused skills
3. underused or missing skills
4. friction points
5. recommended changes with priority