skill-manager — See Everything You Have Installed

Know what skills, plugins, and agents you're running. See where they come from, what needs fixing, and what has updates.

skill-manager is a Claude Code plugin that scans all your installed skills and gives you a clean inventory with structural checks and update notifications.

Install

Run in your terminal:

claude plugin install skill-manager@skill-manager

Usage

# See all your skills, sources, and issues
/skill-check

# Fix structural issues (user-owned skills only)
/skill-check --fix

# Machine-readable output
/skill-check --json

# Offline mode (skip GitHub update checks)
/skill-check --no-update

What It Does

1. Inventory — Lists every skill with description, source, GitHub repo link, and token count
2. Structure checks — Validates frontmatter (name, description, version)
3. Update checks — Queries GitHub for newer versions of plugins and standalone skills

Claude groups your skills by category and presents a clean report:

## Skills
| Skill       | Description                        | Source     | Repo                | Tokens |
|-------------|------------------------------------|------------|---------------------|--------|
| fastapi     | Build Python APIs with FastAPI...  | manual     |                     | ~6808  |
| helius      | Build Solana apps with Helius...   | standalone | sendaifun/skills    | ~2715  |
| find-skills | Discover installable agent skills  | standalone | vercel-labs/skills  | ~1157  |
| tdd-workflow| TDD with 80%+ coverage             | everything-cc |                  | ~2406  |

## Structure Issues
- 2 skills missing frontmatter entirely
- 88 skills missing version field

## Updates Available
- azure-ai: newer version available (2026-02-26 → 2026-03-14)

Auto-Fix (--fix)

/skill-check --fix can automatically repair:

• Missing frontmatter (STRUCT-002)
• Missing name field (STRUCT-003)
• Missing version field (STRUCT-005)

All fixes show diffs and ask for confirmation before applying.

Protection Rules

--fix never modifies:

• Plugin skills (everything-claude-code, superpowers, feature-dev, etc.)
• Anthropic official skills (skill-creator, code-review, figma, etc.)
• Standalone skills from external repositories

Only user-created skills in ~/.claude/skills/ and project-level .claude/skills/ can be fixed.

Configuration

Create ~/.claude/skill-manager/config.json to customize:

{
  "ignoredSkills": ["my-experimental-skill"]
}

FAQ

Will it modify my skills? /skill-check is read-only by default. --fix shows diffs and asks for confirmation. It never touches plugin or official skills.

How does update checking work? Uses gh CLI (authenticated, 5000 req/hr) with fetch() fallback (60 req/hr). Results are cached for 1 hour. Use --no-update for offline mode.

License

MIT