# Skills Janitor

> Skills Janitor cleans your skills folder: finds unused, duplicate or broken skills, previews proposed removals, and safely prunes them. Single-file bash+python3 (no deps), MIT-licensed, free, no telemetry-reclaim context space and tidy your setup.

- Type: AI tool
- Page: https://completeaitraining.com/ai-tools/skills-janitor/
- Published: 2026-04-01
- Updated: 2026-04-14
- Author: Jeroen Erne
- Jobs: IT and development
- Topics: Developer Tools, Open Source
- Reading time: 2 min

### About Skills Janitor

Skills Janitor is a lightweight, open-source toolkit that audits, deduplicates, lints, fixes, and tracks Claude Code skills. It runs as simple bash and Python3 scripts with no dependencies and previews proposed changes before applying them.

### Review

Skills Janitor targets developers who keep many Claude Code skills and want a quick way to see which ones are actually used, which overlap, and which point to missing files. It focuses on practical maintenance tasks via command-line utilities and produces weekly usage summaries plus estimated metrics for less explicit references.

#### Key Features

- Nine command-line actions for auditing, deduplication, linting, fixing, and tracking skills.
- Reads local Claude conversation history (e.g. ~/.claude-account-personal/history.jsonl) to compute explicit and estimated usage counts with weekly granularity.
- Duplicate detection that reports overlap percentage between similar skills.
- Previews all suggested changes before applying them; can be scripted (cron) for automated reports.
- Minimal setup: bash + python3, no external dependencies, MIT-licensed, and no telemetry.

#### Pricing and Value

Skills Janitor is free and distributed under the MIT license. Because it is open-source and dependency-free, it offers strong value for developers who run Claude Code locally: you get inspection and cleanup tooling at no monetary cost and can modify the scripts to fit specific workflows. For teams or users who prefer graphical tools or multi-platform integrations, additional effort may be required to adapt it into broader toolchains.

#### Pros

- Free, MIT-licensed, and open source with no tracking or telemetry.
- Very lightweight-bash and Python3 scripts with no extra dependencies.
- Accurate usage reporting by reading local conversation history and offering explicit vs estimated counts.
- Deduplication with overlap percentages helps reduce redundant skills and context bloat.
- Previews changes before applying them, reducing risk during cleanup.

#### Cons

- Tied to the Claude Code ecosystem and local history format, so it's less useful outside that setup.
- Command-line only; there is no GUI, which may be a barrier for non-technical users.
- Some convenience features (automatic cleanup thresholds, pre-install checks) are mentioned as planned but are not yet available.

Skills Janitor is best suited for developers and power users who maintain a large set of Claude Code skills and are comfortable with command-line tooling. It's a practical, low-friction option for reducing unused skills and duplicate commands, and its open-source nature makes it easy to extend for team-specific workflows.

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