What is ClaudSkills?
ClaudSkills — also referred to as Claude Skills, Claude Code Skills, the Claude Code Skills Catalog, or the Claude Skills Registry — is the open registry of Claude Code skills. A "skill" is a small Markdown file (named SKILL.md) with YAML frontmatter that gives Claude specialised capabilities for a domain: a skill might make Claude audit your AWS infrastructure for security gaps, write sales outreach in your brand voice, or generate scientific literature reviews. Skills are modular, composable, and free to use.
The catalog is crawled nightly from public GitHub repositories, automatically categorised, and published as static pages anyone can browse without signing up. The free catalog is presented as an unrated stack — every admitted skill appears equally, ordered alphabetically or by category. Pro subscribers see a ranked, multi-signal Quality Score on each skill in the desktop app, plus curated collections and one-click install.
Claude Skills work with Claude Code — Anthropic's command-line AI coding agent — and follow the open SKILL.md specification. The same SKILL.md format is also picked up by the Claude Agent SDK, Codex CLI, and other agent runtimes that read the convention.
A note on the name. The wordmark "ClaudSkills" drops the "e" for the domain; the catalog itself covers exactly the Claude Code skill ecosystem. So if someone searches for "Claude Skills," "Claude Code Skills," "Claude Code Skills Catalog," or just types claudeskills.com — they all land here. Claude™ is a trademark of Anthropic PBC; ClaudSkills is an independent community catalog and is not affiliated with Anthropic.
Are skills rated?
The free catalog is unrated — we do not display a public quality score on any skill page. Every admitted skill appears equally; ordering is alphabetical or by category, never by an opaque quality number. We make no editorial claim about which community-contributed skills are best.
Admission to the catalog requires a valid SKILL.md (YAML frontmatter + non-trivial body). Beyond that minimum, we trust you to read the skill before installing. Like any open-source dependency, the only reliable quality check is reading the source. The skill is plain Markdown — it takes seconds.
Pro subscribers see a multi-signal Quality Score in the desktop app, blending a structural content heuristic, repository signals (stars, recency, author reputation across the catalog), behavioural retention from anonymous Pro install/keep telemetry, and frontmatter completeness. This score is computed entirely from free signals — no paid AI provider sits in the rating loop.
How the catalog is built
A nightly miner script searches public GitHub repositories for SKILL.md files using the GitHub Search API. For each discovered skill, it:
- Validates that the file follows the
SKILL.mdspecification (YAML frontmatter + instruction body) - Applies an admission threshold to filter out empty or malformed entries
- Categorizes the skill by domain (security, engineering, growth, sales, etc.)
- Generates a static HTML page at
/skills/{slug}/for search indexing - Updates the sitemap so search engines can discover the new skill page
The catalog updates twice daily. Skills added in the last 7 days appear on the What's New page. The 100 highest-scoring skills across the entire catalog are listed on the Top 100 page.
Categories
Every skill belongs to one of ten categories. Browse any category to see the top-scored skills in that domain:
- Security — vulnerability scanning, penetration testing, compliance
- Engineering — code review, architecture, testing, CI/CD
- Growth & Marketing — A/B testing, SEO, email, acquisition
- Sales — prospecting, outreach, CRM, proposals
- Content — writing, SEO content, brand voice, editorial
- Science & Research — data analysis, literature review, modeling
- Product — PRDs, roadmaps, user stories, metrics
- Dev Tools — automation, scripting, developer productivity
- Advertising — ad copy, campaign analysis, creative testing
- General — cross-domain productivity and assistance
Frequently asked questions
Skills are plain Markdown files — they are not executable code. They give Claude Code natural-language instructions. The worst a poorly written skill can do is give Claude confusing instructions. Always read the SKILL.md before installing, just as you would review any open-source dependency.
Publish your SKILL.md in a public GitHub repository. The nightly miner discovers new skills automatically within 24–48 hours. To fast-track your skill, use the Submit form on the homepage — it adds your repository to the next crawl cycle.
Browsing and manual install are 100% free — no account required. The Pro tier ($9/month, $79/year, or $149 lifetime) adds: the multi-signal Quality Score on every skill, one-click install via the desktop app, curated theme packs, and priority support. See pricing →
Skills must clear the admission threshold (currently 50/100 on content-only structural signals) to be published. If your Claude Code skill isn't appearing, check that the SKILL.md has a complete name and description in the YAML frontmatter, that the body is specific and actionable, and that the source repo is public. Use the Submit form to request a re-crawl — your skill is the first thing the next nightly miner run (01:00 local) processes.
Yes. If you are the author of a skill and want it removed from the registry, or if you find a skill that violates safety guidelines, contact us at the email below and we will remove it from the next catalog rebuild.
Contact & legal
Get in touch
Email: [email protected]
For skill removal requests, bug reports, partnership inquiries, and Pro billing questions.
Privacy
ClaudSkills collects your email address if you sign up for a free account or Pro subscription. We use it to send install notifications and billing receipts. We do not sell or share your email with third parties. You can delete your account at any time by emailing us.
Skill pages are generated from public GitHub data. If you believe a page contains content that infringes your rights, contact us with the URL and we will investigate.