Deprecation Management

Mission

Keep the skillpack from accumulating obsolete skills, duplicate docs, and stale policy paths.

Trigger Rule

Use this skill when:

1. a skill is renamed, merged, split, or superseded
2. a document becomes obsolete but still has external value
3. a validator should warn before a future removal
4. users need migration guidance between old and new workflows

Scope Boundary

This skill owns lifecycle state and migration policy.

Use File Maintenance for factual cleanup. Use File Structure Optimization for file moves and layout changes.

Deprecation States

1. active: supported and recommended
2. discouraged: still valid but no longer preferred
3. deprecated: supported temporarily with replacement guidance
4. removed: no longer present; migration notes remain in changelog or docs

Required Deprecation Record

Every deprecated item must record:

1. item name or path
2. current state
3. replacement
4. reason
5. first deprecated date
6. removal criteria
7. migration notes

Anti-Overuse Rules

Use when:

1. lifecycle state changes are real
2. compatibility or migration matters
3. an old path or skill may still be referenced

Do not use when:

1. a file is simply edited
2. a typo or stale line can be fixed directly
3. no replacement or compatibility issue exists

Stop after:

1. state and replacement are documented
2. references are updated or intentionally preserved
3. validators or docs warn only where useful

Output Contract

When applying this skill, provide:

1. deprecated item(s)
2. replacement path
3. migration impact
4. validator or documentation changes
5. removal criteria