Skill Audit

/skill:skill-audit — Skills & Plugin Ecosystem Audit

Purpose: Comprehensive audit of your Claude Code skill and plugin ecosystem — inventory what you have, discover what's available, identify gaps, and implement improvements. Project-agnostic.

When to Use

• Periodically (monthly or per-wave) to catch new skills/plugins
• When setting up Claude Code for a new project
• After Anthropic releases new official plugins or skills
• When capabilities feel stale and you want to level up
• After a major workflow change (new languages, new tools, new patterns)

When NOT to Use

• Creating a single custom skill — use /skill-creator instead
• Debugging a broken plugin — check claude plugin list and plugin docs
• Improving CLAUDE.md — use /claude-md-improver instead

Usage

/skill:skill-audit                        # Full audit: inventory → research → gaps → recommendations
/skill:skill-audit --inventory            # Just list current skills and plugins (no research)
/skill:skill-audit --research             # Just research available options (no changes)
/skill:skill-audit --implement            # Skip recommendations, implement all findings
/skill:skill-audit --scope plugins        # Audit plugins only
/skill:skill-audit --scope skills         # Audit skills only

Arguments

• --inventory — stop after Phase 1 (current state report only)
• --research — stop after Phase 3 (gap analysis, no changes)
• --implement — auto-implement all recommendations without presenting them first
• --scope <plugins|skills> — limit audit to one domain

Phase 1: Inventory Current State

1a: Installed Plugins

claude plugin list 2>&1

Collect for each plugin:

• Name and marketplace source
• Version
• Enabled/disabled status
• Skills it provides (if any)

1b: Installed Skills

Scan for SKILL.md files in all skill directories:

# Project-level skills
find .claude/skills -name 'SKILL.md' 2>/dev/null

# Repo-level shared skills (if using a shared sync/install flow)
find ~/repos/.claude/skills -name 'SKILL.md' 2>/dev/null

# Skills repo (source of truth)
find ~/repos/skills/claude -name 'SKILL.md' 2>/dev/null

For each skill, read the frontmatter to extract name and description.

1c: Registered Marketplaces

cat ~/.claude/plugins/known_marketplaces.json 2>/dev/null

1d: Plugin-Provided Agents

Check for plugin-provided subagent types by looking at the currently loaded skill list (available in the Skill tool's metadata). Note which plugins contribute agents vs skills.

1e: Project Context

Read CLAUDE.md to understand:

• Languages and frameworks in use
• Build tools and test frameworks
• Deployment targets (K8s, cloud, local)
• Any domain-specific needs (BA, security, data, etc.)

This determines which skills/plugins are relevant vs noise.

Inventory Report

## Current Ecosystem

**Plugins:** N installed (M enabled, K disabled)
**Skills:** N loaded (P project-specific, Q shared)
**Marketplaces:** N registered
**Agents:** N available (from plugins)

### Enabled Plugins
| Plugin | Source | Skills/Agents Provided |
|--------|--------|----------------------|
| ... | ... | ... |

### Disabled Plugins
| Plugin | Source | Reason (if known) |
|--------|--------|--------------------|
| ... | ... | ... |

### Loaded Skills
| Skill | Source | Description |
|-------|--------|-------------|
| ... | project / shared / plugin | ... |

If --inventory was passed, stop here.

Phase 2: Research Available Options

2a: Official Anthropic Plugins

Check the claude-plugins-official marketplace for plugins not currently installed:

# List all available plugins from official marketplace
claude plugin marketplace list claude-plugins-official 2>&1

For each uninstalled plugin:

• Check relevance against project context (from Phase 1e)
• Skip language-specific plugins for languages not in the project

2b: Anthropic Skills Repository

Check the anthropic-agent-skills marketplace:

claude plugin marketplace list anthropic-agent-skills 2>&1

If the marketplace isn't registered:

claude plugin marketplace add anthropic-agent-skills https://github.com/anthropics/skills 2>&1

2c: Community Marketplaces

Check known community sources:

For each not-yet-registered marketplace relevant to the project:

claude plugin marketplace add <name> <url> 2>&1

2d: Skills Repo Comparison

If a skills repo exists (~/repos/skills/), compare the project's shared skills to the source repo:

# Check for skills in source not present in the project
diff <(ls ~/repos/skills/claude/) <(ls .claude/skills/ | grep -v _project)

Also check claude/README.md to see whether the source catalog mentions shared skills that are missing from the project.

2e: Version Freshness

For installed plugins, check if updates are available:

claude plugin update --check 2>&1

Phase 3: Gap Analysis

Cross-reference the project context (Phase 1e) with available options (Phase 2) to identify:

Relevance Scoring

For each available-but-not-installed item, score relevance:

Gap Categories

1. Missing capabilities — things the project needs that no current skill/plugin covers
2. Upgrade opportunities — installed plugins with newer versions available
3. Unused plugins — enabled plugins irrelevant to the project (wasting context)
4. Duplicate coverage — multiple skills/plugins doing the same thing
5. Skill staleness — skills in source repo newer than the project's shared copies

Source-repo authors: for description-level overlap analysis between custom skills in this repo and native skills (superpowers, plugins, built-ins), use /audit-native-overlap instead. That skill is scoped to the savviety-skills source tree and produces per-skill edit recommendations (tighten / cross-reference / integrate / hand off). /skill:skill-audit is for consumer-side ecosystem questions (what's installed, what's stale).

Gap Report

## Gap Analysis

### Missing Capabilities (score >= 3)
| Item | Type | Source | Relevance | Why |
|------|------|--------|-----------|-----|
| ... | plugin/skill | ... | High/Med | ... |

### Upgrade Available
| Plugin | Current | Available |
|--------|---------|-----------|
| ... | ... | ... |

### Should Disable (irrelevant)
| Plugin | Reason |
|--------|--------|
| ... | No <language> in project |

### Duplicate Coverage
| Capability | Covered By |
|------------|------------|
| ... | skill A + plugin B (recommend keeping ...) |

### Stale Shared Skills
| Skill | Project Copy | Source Version |
|-------|-----------------|----------------|
| ... | ... | ... |

If --research was passed, stop here.

Phase 4: Recommendations

Present findings grouped by action type, ordered by impact:

## Recommendations

### Install (new plugins)
1. **<plugin>@<marketplace>** — <why it helps>
2. ...

### Create (new skills)
1. **/skill-name** — <gap it fills>
2. ...

### Enable (disabled plugins worth enabling)
1. **<plugin>** — <why>

### Disable (irrelevant plugins, save context)
1. **<plugin>** — <why it's not needed>

### Update (stale skills/plugins)
1. **<item>** — <current> → <available>

### Sync (skills in source not in project)
1. **<skill>** — sync shared skills into the project

Implement all? [y/N]

If --implement was passed, skip the prompt and proceed.

Phase 5: Implementation

Execute each approved recommendation:

Installing Plugins

# Add marketplace if needed
claude plugin marketplace add <name> <url> 2>&1

# Install plugin
claude plugin install <name>@<marketplace> 2>&1

# Enable plugin
claude plugin enable <name>@<marketplace> 2>&1

Creating Skills

For each new skill to create:

1. Create directory in the skills repo: ~/repos/skills/claude/<name>/
2. Write SKILL.md with frontmatter and workflow
3. Update claude/README.md or other catalog docs if the new skill should be discoverable there
4. Re-sync the shared Claude skills into any target projects that consume them

Enabling/Disabling Plugins

claude plugin enable <name>@<marketplace> 2>&1
claude plugin disable <name>@<marketplace> 2>&1

Updating

claude plugin update <name>@<marketplace> 2>&1

Syncing Skills

Refresh the shared Claude skills using the current sync workflow for your environment. In this source repo, the old deploy.sh script is archived, so do not instruct the user to run it.

Phase 6: Report

## Skill Audit Complete

### Actions Taken
| Action | Item | Result |
|--------|------|--------|
| Installed | <plugin> | OK / Error |
| Created | /skill-name | OK |
| Enabled | <plugin> | OK |
| Disabled | <plugin> | OK |
| Updated | <plugin> | OK |
| Synced | N skills | OK |

### Before → After
| Metric | Before | After |
|--------|--------|-------|
| Plugins installed | N | N |
| Plugins enabled | N | N |
| Skills loaded | N | N |
| Marketplaces | N | N |

### Next Steps
- Restart Claude Code for new plugins to take effect
- Run `/skill:checkpoint` to verify nothing broke
- Verify new skills with a test invocation

Key Rules

1. Read-only by default. Phases 1-4 make no changes. Only Phase 5 modifies state, and only after user approval (unless --implement).
2. Context matters. A Rust security plugin is noise in a TypeScript project. Always score relevance against the actual project.
3. Don't be noisy. Only recommend items with relevance score >= 3. Skip obvious mismatches silently.
4. Preserve project skills. Never touch _project/ directories. Those are managed by the project, not this skill.
5. Skills repo is source of truth. If ~/repos/skills/ exists, create new skills there and sync them into projects. Don't create shared skills directly in .claude/skills/ (they'd be overwritten on the next shared sync).
6. One command at a time. Plugin CLI commands can fail silently when chained. Run each install/enable/disable separately and check the result.
7. Marketplace registration is durable. Only marketplace add once per source. Check known_marketplaces.json before adding.