Claude Skills Free

🧠 50 Free Claude Code Skills — Ready to Use

Drop any of these .md files into ~/.claude/skills/ and Claude Code instantly gains expert knowledge on that topic.

What are skills? Instruction files that teach Claude Code domain expertise — React debugging, SQL optimization, Docker best practices, API design, and more.

Quick Start

# Download a single skill
curl -o ~/.claude/skills/rate-limiter.md https://raw.githubusercontent.com/Samarth0211/claude-skills-free/master/skills/rate-limiter.md

# Or clone all 50
git clone https://github.com/Samarth0211/claude-skills-free.git
cp claude-skills-free/skills/*.md ~/.claude/skills/

Available Skills (50)

API (4)

Skill	Description
api-error-handler	Create standardized API error handling
rate-limiter	Add rate limiting to API endpoints
request-validator	Add request validation middleware (Zod, Joi)
rest-api-scaffold	Scaffold a complete REST API with CRUD operations

Backend (2)

Skill	Description
middleware-chain	Create and organize middleware chain
websocket-setup	Implement WebSocket server with rooms

CLI (2)

Skill	Description
cli-app-builder	Build CLI applications with Commander.js
interactive-cli	Create interactive CLI prompts (Inquirer.js)

Cloud (3)

Skill	Description
cloudwatch-alarms	Set up CloudWatch monitoring and alarms
lambda-function	Create AWS Lambda function with handler
s3-operations	Set up S3 bucket operations (upload, download, presigned URLs)

Code Review (1)

Skill	Description
code-smell-detector	Scan codebase for code smells — duplication, complexity, dead code

Database (4)

Skill	Description
index-advisor	Suggest database indexes based on query patterns
migration-generator	Generate database migration files
query-optimizer	Analyze and optimize slow database queries
redis-cache-setup	Set up Redis caching with proper patterns

Debugging (4)

Skill	Description
error-analyzer	Analyze error messages and suggest fixes
log-analyzer	Analyze log files and identify patterns
memory-leak-finder	Find and fix memory leaks
stack-trace-decoder	Decode and explain stack traces

DevOps (3)

Skill	Description
deploy-script	Create deployment scripts for various platforms
env-manager	Manage environment variables across environments
github-actions-setup	Create GitHub Actions workflow files

Docker (3)

Skill	Description
docker-compose	Create docker-compose.yml for multi-service apps
docker-multistage	Optimize Docker builds with multi-stage builds
dockerfile-generator	Generate optimized Dockerfile for any project

Frontend (5)

Skill	Description
dark-mode-setup	Implement dark/light mode toggle
form-builder	Build forms with validation (React Hook Form, Formik)
responsive-layout	Create responsive layouts with Tailwind/CSS Grid
seo-optimizer	Add SEO meta tags, structured data, sitemap
state-management-setup	Set up state management (Zustand, Redux, Jotai)

Git (3)

Skill	Description
conflict-resolver	Analyze and suggest resolutions for merge conflicts
git-hooks-setup	Set up pre-commit, pre-push, and commit-msg hooks
smart-commit	Generate conventional commit messages by analyzing staged changes

Performance (3)

Skill	Description
bundle-analyzer	Analyze and reduce JavaScript bundle size
caching-strategy	Design and implement caching strategy
lighthouse-fixer	Fix issues found in Lighthouse audit

Python (4)

Skill	Description
fastapi-setup	Scaffold FastAPI with async endpoints and auto-docs
pytest-setup	Configure pytest with fixtures, plugins, and coverage
python-logging	Configure structured logging for Python applications
python-typing	Add comprehensive type hints and mypy configuration

Refactoring (1)

Skill	Description
dry-refactor	Find code duplication and extract shared logic

Security (4)

Skill	Description
dependency-audit	Audit dependencies for known vulnerabilities
input-sanitizer	Add input sanitization to prevent injection attacks
security-headers	Configure security headers (HSTS, X-Frame-Options, etc.)
sql-injection-guard	Review and fix SQL injection vulnerabilities

Testing (4)

Skill	Description
e2e-test-writer	Write end-to-end tests using Playwright or Cypress
mock-generator	Generate mocks, stubs, and fakes for dependencies
test-coverage-analyzer	Analyze test coverage gaps and suggest tests to write
unit-test-generator	Generate unit tests for any function or class

Want More?

These 50 are free samples from our full library of 2,300+ tested skills.

• 🔍 Browse all 2,300+ skills: clskills.in/browse
• 📘 Free 40-page Claude Guide: clskills.in/guide
• ⚡ 120 Tested Prompt Codes: clskills.in/cheat-sheet
• 📦 Curated Bundles ($5): clskills.in/bundles

Contributing

Found a bug? Want to improve a skill? PRs welcome.

License

MIT — use these skills however you want.

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Made by Samarth Bhamare · CLSkills.in