# Janitor Duplicates

> Find duplicate skills that do the same thing

- Skill: `majiayu000/janitor-duplicates` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add majiayu000/janitor-duplicates`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/janitor-duplicates/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/janitor-duplicates

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# Duplicate Detection

Find skills with overlapping functionality using keyword similarity analysis.

## How to Run

```bash
bash ~/.claude/skills/skills-janitor/scripts/detect_dupes.sh
```

## How It Works

1. Extracts trigger keywords from each skill's description field
2. Filters common stop words (~60 words)
3. Compares all skill pairs using Jaccard similarity
4. Flags pairs with >30% keyword overlap

## Output

```
[72%] marketing-copywriting <-> marketing-copy-editing
      Scopes: user, user
      Shared keywords: copy, editing, marketing, write

[45%] seo-audit <-> marketing-seo-audit
      Scopes: project, user
      Shared keywords: audit, seo, ranking
```

## After Finding Duplicates

- Review each pair - some overlap is intentional (e.g., copywriting vs copy-editing)
- Plugin skills should NOT be edited (changes get overwritten)
- For user-scope duplicates, suggest which to keep and why
- Ask for confirmation before any removal

## Related Skills

- For full skill inventory: `/janitor-audit`
- For auto-fixing issues: `/janitor-fix`
- For a health report: `/janitor-report`