Best Claude Skills
High-Star GitHub Picks
If you already use Claude Code, prompting alone is not enough. Skills turn repeatable workflows, constraints, scripts, and references into reusable operating knowledge, so Claude behaves more like a specialist and less like a one-off improviser. This guide curates the most worthwhile Claude Skills sources based on GitHub popularity and official references.
// What Skills Are
1. What Claude Skills Actually Are
Anthropic introduced Skills in October 2025, then pushed them further in December 2025 with organization support, a partner directory, and the open Agent Skills standard.
As of April 21, 2026, Claude Skills are no longer just a Claude-specific feature. They are increasingly part of a cross-tool ecosystem shared by Claude Code, Codex, Gemini CLI, Cursor, and related agents.
That is why this guide does not rank repositories by stars alone. It also looks at direct installability, clear use cases, and long-term maintenance value.
// Selection Rules
2. How These Repositories Were Chosen
| Dimension | What I Prioritized |
|---|---|
| GitHub popularity | High-star projects validated by many developers |
| Official or team-backed | Anthropic, Trail of Bits, Sentry, Microsoft, and similar sources |
| Installability | Not just a README, but something you can actually wire into a tool |
| Clear use case | Document work, testing, security, PRs, frontend, debugging |
| Long-term value | Repos with bundles, workflows, templates, or quality standards |
// Top Repos
3. High-Star Claude Skills Repositories Worth Watching
The star counts below are based on the GitHub pages I checked on April 21, 2026.
anthropics/skills
⭐ 120kOfficial skills repoAnthropic's public Agent Skills repository, including production-grade `docx`, `pdf`, `pptx`, and `xlsx` skills plus templates and patterns.
Best for: Users who want the official starting point
Take: The best official reference to start with.
Open GitHub RepositoryComposioHQ/awesome-claude-skills
⭐ 55.3kLarge curated listVery broad coverage across documents, development, analysis, business, creative work, and automation; good for discovery before installation.
Best for: People who want categorized discovery fast
Take: More of a discovery directory than a focused toolkit.
Open GitHub Repositorysickn33/antigravity-awesome-skills
⭐ 34.3kMassive installable skills libraryShips 1400+ skills, an installer, bundles, workflows, and multi-tool compatibility paths. Not just a list, but an installable system.
Best for: People who want breadth plus bundles and workflows
Take: Great for power users, but avoid activating too much at once.
Open GitHub Repositorywshobson/agents
⭐ 33.8kPlugins + agents + skills systemNot just a skills list, but a production system with 78 focused plugins, 184 agents, 150 skills, and 98 commands.
Best for: Teams that want multi-agent orchestration
Take: Best for advanced users and teams, not a pure beginner-first repo.
Open GitHub RepositoryVoltAgent/awesome-agent-skills
⭐ 15.8kHigh-quality curated listExplicitly emphasizes hand-picked skills from real engineering teams rather than bulk-generated lists.
Best for: People who prefer official/team-maintained skills
Take: A strong choice if you want curation over sheer volume.
Open GitHub Repositoryalirezarezvani/claude-skills
⭐ 12.2kProduction-oriented multi-domain libraryCovers engineering, Playwright, self-improving agent workflows, marketing, project management, and executive advisory use cases.
Best for: Cross-functional teams across engineering and business
Take: Useful where technical and business workflows overlap.
Open GitHub Repositorytrailofbits/skills
⭐ 4.7kSecurity-focused skills marketplaceBuilt by Trail of Bits with a clear security focus: static analysis, Semgrep rule authoring, supply-chain audits, GitHub Actions auditing, and more.
Best for: Security research, audits, and vuln analysis
Take: Not the broadest library, but unusually strong for security work.
Open GitHub Repository// What To Install First
4. What to Install First If You Are Just Starting
1. The official document skills
From anthropics/skills, the official docx, pdf, pptx, and xlsx skills are the best starting point.
These matter because they help Claude produce actual deliverables: contracts, reports, slides, spreadsheets, and extracted PDF data.
2. General engineering starter skills
The README for antigravity-awesome-skills exposes a very practical starter set:
@brainstorming
@test-driven-development
@debugging-strategies
@lint-and-validate
@security-auditor
@frontend-design
@api-design-principles
@create-prThis is a strong default stack for daily engineering work.
3. PR, bug, and review-oriented skills
VoltAgent/awesome-agent-skills is useful because it highlights skills published by real teams. Good developer-first picks include:
getsentry/create-pr
getsentry/find-bugs
getsentry/iterate-pr
microsoft/frontend-design-review
microsoft/mcp-builder
openai/cloudflare-deployThese are not broad libraries. They are narrow, high-intent skills for repeatable tasks.
4. Security-specialized skills
If your work includes audits, dependency review, CI security, or rule authoring, go directly to trailofbits/skills.
static-analysis
semgrep-rule-creator
supply-chain-risk-auditor
agentic-actions-auditor
insecure-defaultsThis is the narrowest recommendation in the article, but also the most specialized.
// Who Should Use What
5. Which Repository Fits Which User
| If you are... | Start here |
|---|---|
| New to Claude Skills | anthropics/skills + VoltAgent/awesome-agent-skills |
| Trying to browse a huge skills catalog | ComposioHQ/awesome-claude-skills |
| Wanting a massive installable library | antigravity-awesome-skills |
| Building multi-agent engineering workflows | wshobson/agents |
| Running mixed engineering + business workflows | alirezarezvani/claude-skills |
| Doing security research or audits | trailofbits/skills |
💡 If you are not a power user yet, do not begin with the biggest possible library. Start with 5 to 10 high-frequency skills.
// Safety
6. Two Practical Notes Before Installing Anything
1. Do not judge by stars alone
Skills are not plain prompt snippets. Many include scripts, hooks, references, and execution logic. Read the repo structure before installing.
2. Prefer official or curated sources for company projects
For production or company environments, favor official repos or curated sources such as trailofbits/skills-curated.
💡 The skills ecosystem is large now, but quality varies a lot. Reviewing scripts and permission boundaries is part of installation, not an optional extra step.
// Sources
7. Main Sources Used for This Guide
// Summary
Summary
If I had to compress the shortlist down to one line, it would be this:
Official baseline: anthropics/skills
Best curation: VoltAgent/awesome-agent-skills
Largest installable library: antigravity-awesome-skills
Best orchestration system: wshobson/agents
Best security specialization: trailofbits/skillsThe real win is not collecting hundreds of skills. It is identifying the handful you will reuse every week and integrating them into your actual workflow.
Need Claude Code set up first?
Finish the setup first, then come back and install skills with a clearer shortlist
View Claude Code Setup Guide