The 9 FREE Claude Code Skills Libraries That Pros Use (And Save Time)

I stopped wasting time creating Claude Code skills from scratch, since I found this Claude Code skills treasure trove.

There are hundreds, if not thousands, of properly crafted Claude Code skills for nearly every coding need — but most developers don’t know they exist.

I have been using some of these Claude Code skills in my daily workflow, and I recently realized I have never shared my favourite list.

These are free, open-source Claude Code skill repos that will take your workflow to the next level.

So, I carefully filtered and curated the best of all free Claude Code skill libraries that you should be using right now.

Most of these repos are actively maintained, battle-tested by thousands of developers, and cover everything from code quality and planning to marketing, game development, and even autonomous ML research.

But first — a quick refresher in case you’re new to Claude Code skills.

What Are Claude Code Skills?

Claude Code skills are modular instruction packages in a single SKILL.md file, which gives Claude domain expertise.

They are reusable instructions you add to, ~/.claude/skills/ and Claude gains a new capability: a structured workflow, a decision framework, or an entire automation pipeline.

Skills follow the open Agent Skills standard, which means they also work with Codex, Cursor, Gemini CLI, and other coding agents.

Installing one is simple:

# Clone and copy
git clone https://github.com/repo/skill-name.git
cp -r skill-name/skills/* ~/.claude/skills/

# Or via plugin marketplace
/plugin marketplace add author/repo
/plugin install skill-name

Big Skills Collections

These three repos are full libraries and curated directories packed with hundreds of skills that you can filter to match your use case.

1) Everything Claude Code

Everything Claude Code is a complete Claude Code configuration collection with agents, skills, hooks, commands, rules, and MCPs.

It was built by an Anthropic hackathon winner. It includes pre-built agent skills, a plugin directory, and even Codex and Cursor compatibility files.

If you are setting up a new Claude Code environment or want a solid foundation to build on, this is a great place to start.

Key Features

• Complete config collection: agents, skills, hooks, slash commands, rules, and MCPs
• Developed by an Anthropic hackathon winner
• Includes Codex and Cursor compatibility files
• 52K+ GitHub stars and actively maintained
• Works as a starter template for new Claude Code setups

Everything Claude Code — GitHub

2) Awesome Claude Code

Awesome Claude Code is my go-to curated list for the Claude Code ecosystem.

It follows the classic “awesome list” format — a categorized directory of skills, hooks, slash commands, agent orchestrators, applications, and plugins.

When I need a skill for a specific task and don’t know where to look, this is where I start browsing. Everything is organized by category with links to the original repos.

Key Features

• Curated directory of skills, hooks, commands, orchestrators, and plugins
• Organized by category for easy discovery
• Community-maintained with 900+ commits
• 30K+ stars — the largest Claude Code resource list
• Updated regularly through community pull requests

Awesome Claude Code — GitHub

3) Claude Skills (alirezarezvani)

Claude Skills by alirezarezvani is the most comprehensive single skill library available. 232+ skills and agent plugins covering engineering, DevOps, marketing, compliance, product management, and even C-level advisory.

Every skill works natively with 12 tools: Claude Code, OpenAI Codex, Gemini CLI, Cursor, Aider, Windsurf, Kilo Code, OpenCode, Augment, and more.

Each skill comes with a SKILL.md for instructions, Python CLI tools (all standard library), and reference docs with templates and checklists.

Key Features

• 232+ skills across engineering, DevOps, marketing, compliance, and advisory
• Works natively with 12 coding agents (Claude Code, Codex, Cursor, Gemini CLI, etc.)
• 305 Python CLI tools — all stdlib, zero pip installs
• Semantic versioning with backward compatibility
• Includes orchestration for combining multiple skills

Claude Skills — GitHub

Workflow & Planning Skills

These two repos focus on structured planning and workflow execution.

4) Planning With Files

Planning With Files brings Manus-style persistent planning to Claude Code. It uses markdown files to give Claude a structured memory system.

Claude creates and maintains three files: task_plan.md for the roadmap, findings.md for research and discoveries, and progress.md for tracking what's done. This gives Claude a persistent context across long sessions.

It forces a plan-first approach where Claude breaks down the work, tracks progress, and stays on course.

Key Features

• Manus-style persistent markdown planning
• Three-file system: task_plan.md, findings.MD, progress.md
• Prevents Claude from losing context in long sessions
• Forces structured plan-first execution
• Lightweight — pure markdown

Planning With Files — GitHub

5) Skills by Sahil Lavingia

Sahil Lavingia is the founder of Gumroad and author of The Minimalist Entrepreneur; he turned his entire book into Claude Code skills.

Each skill maps to a chapter: /find-community, /validate-idea, /build-mvp, /launch, /grow, and more. You run a slash command, and Claude walks you through the framework step by step, asking the right questions and guiding your thinking.

It is a business strategy skill library built for founders and indie hackers who use Claude Code.

Key Features

• 10 skills based on the Minimalist Entrepreneur framework
• Slash commands for each stage: /find-community, /validate-idea, /build-mvp, /launch
• Guided step-by-step business strategy inside Claude Code
• Built for developer-founders and indie hackers
• 8.3K+ GitHub stars

Skills — GitHub

Domain-Specific Skills

These three repos prove that Claude Code skills go way beyond writing code.

Marketing, game development, and education — each one turns Claude into a specialist for a specific domain.

6) Marketing Skills

Marketing Skills by Corey Haines is a full marketing toolkit built as Claude Code skills.

Each skill comes with CLI tools, structured templates, and decision frameworks. 32 skills covering CRO, copywriting, SEO, analytics, growth engineering, and content strategy.

If you are a developer who also handles marketing (solo founders, this is you), this repo saves your time.

Key Features

• 32 marketing skills: CRO, copywriting, SEO, analytics, growth engineering
• 52 CLI tools with structured templates
• Decision frameworks for marketing strategy
• Built for developer-founders handling their own marketing
• 25K+ GitHub stars

Marketing Skills — GitHub

7) Claude Code Game Studios

Claude Code Game Studios turns Claude into a full game development studio.

It’s a full multi-agent system with 48 AI agents and 36 workflow skills designed for building games. The setup mirrors a real game studio structure.

It includes agents for game design, art direction, level design, QA testing, sound design, and more.

Key Features

• 48 specialized AI agents mirroring a real game studio
• 36 workflow skills covering the full game dev pipeline
• Multi-agent coordination with structured handoffs
• Covers design, art, levels, QA, sound, and polish
• Complete production framework for AI-assisted game development

Claude Code Game Studios — GitHub

8) Codebase to Course

Codebase to Course takes any codebase and turns it into an interactive single-page HTML course.

Point it at a repo, and it generates a structured learning path with explanations, code walkthroughs, and interactive sections. The output is a standalone HTML file you can share with your team or publish.

This is a great skill for vibe coders and teams onboarding new developers.

Key Features

• Converts any codebase into an interactive HTML course
• Single-page standalone output — easy to share
• Structured learning path with code walkthroughs
• Great for team onboarding and documentation
• Works with any language or framework

Codebase to Course — GitHub

9) ARIS — Auto Claude Code Research in Sleep

ARIS is built for ML researchers and AI engineers who want Claude to run experiments autonomously.

The system handles the full research loop: idea discovery, literature review, experiment design, code generation, execution, and cross-model peer review.

Everything is pure markdown. You clone it, configure your research parameters, and let it run.

Key Features

• Autonomous ML research: idea discovery, experiments, peer review
• Cross-model review loops for error catching
• Zero dependencies — pure markdown skills
• Full research loop automation while you sleep
• 7.8K+ GitHub stars

ARIS — GitHub

Final Thoughts

Claude Code skills separate productive developers from everyone else.

You can spend hours crafting the perfect SKILL.md from scratch — or you can clone a repo and start building.

The Claude Code skills ecosystem is growing very fast, but these free repos help you to quickly find any skill you need or a template to build your own skills library.

Do you know any other Claude Code skill library I left out? Let me know in the comments below.