A curated list of practical Claude Skills for enhancing productivity across Claude.ai, Claude Code, and the Claude API.

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• What Are Claude Skills?
• Skills
  • Document Processing
  • Development & Code Tools
  • Data & Analysis
  • Business & Marketing
  • Communication & Writing
  • Creative & Media
  • Productivity & Organization
  • Collaboration & Project Management
  • Security & Systems
• Getting Started
• Creating Skills
• Contributing
• Resources
• License

Claude Skills are customizable workflows that teach Claude how to perform specific tasks according to your unique requirements. Skills enable Claude to execute tasks in a repeatable, standardized manner across all Claude platforms.

• docx - Create, edit, analyze Word docs with tracked changes, comments, formatting.
• pdf - Extract text, tables, metadata, merge & annotate PDFs.
• pptx - Read, generate, and adjust slides, layouts, templates.
• xlsx - Spreadsheet manipulation: formulas, charts, data transformations.
• Markdown to EPUB Converter - Converts markdown documents and chat summaries into professional EPUB ebook files. By @smerchek

• artifacts-builder - Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui).
• aws-skills - AWS development with CDK best practices, cost optimization MCP servers, and serverless/event-driven architecture patterns.
• Changelog Generator - Automatically creates user-facing changelogs from git commits by analyzing history and transforming technical commits into customer-friendly release notes.
• Claude Code Terminal Title - Gives each Claud-Code terminal window a dynamic title that describes the work being done so you don't lose track of what window is doing what.
• D3.js Visualization - Teaches Claude to produce D3 charts and interactive data visualizations. By @chrisvoncsefalvay
• FFUF Web Fuzzing - Integrates the ffuf web fuzzer so Claude can run fuzzing tasks and analyze results for vulnerabilities. By @jthack
• finishing-a-development-branch - Guides completion of development work by presenting clear options and handling chosen workflow.
• iOS Simulator - Enables Claude to interact with iOS Simulator for testing and debugging iOS applications. By @conorluddy
• MCP Builder - Guides creation of high-quality MCP (Model Context Protocol) servers for integrating external APIs and services with LLMs using Python or TypeScript.
• move-code-quality-skill - Analyzes Move language packages against the official Move Book Code Quality Checklist for Move 2024 Edition compliance and best practices.
• Playwright Browser Automation - Model-invoked Playwright automation for testing and validating web applications. By @lackeyjb
• prompt-engineering - Teaches well-known prompt engineering techniques and patterns, including Anthropic best practices and agent persuasion principles.
• pypict-claude-skill - Design comprehensive test cases using PICT (Pairwise Independent Combinatorial Testing) for requirements or code, generating optimized test suites with pairwise coverage.
• Skill Creator - Provides guidance for creating effective Claude Skills that extend capabilities with specialized knowledge, workflows, and tool integrations.
• Skill Seekers - Automatically converts any documentation website into a Claude AI skill in minutes. By @yusufkaraaslan
• software-architecture - Implements design patterns including Clean Architecture, SOLID principles, and comprehensive software design best practices.
• subagent-driven-development - Dispatches independent subagents for individual tasks with code review checkpoints between iterations for rapid, controlled development.
• test-driven-development - Use when implementing any feature or bugfix, before writing implementation code.
• using-git-worktrees - Creates isolated git worktrees with smart directory selection and safety verification.
• Webapp Testing - Tests local web applications using Playwright for verifying frontend functionality, debugging UI behavior, and capturing screenshots.

• CSV Data Summarizer - Automatically analyzes CSV files and generates comprehensive insights with visualizations without requiring user prompts. By @coffeefuelbump
• root-cause-tracing - Use when errors occur deep in execution and you need to trace back to find the original trigger.

• Brand Guidelines - Applies Anthropic's official brand colors and typography to artifacts for consistent visual identity and professional design standards.
• Competitive Ads Extractor - Extracts and analyzes competitors' ads from ad libraries to understand messaging and creative approaches that resonate.
• Domain Name Brainstormer - Generates creative domain name ideas and checks availability across multiple TLDs including .com, .io, .dev, and .ai extensions.
• Internal Comms - Helps write internal communications including 3P updates, company newsletters, FAQs, status reports, and project updates using company-specific formats.
• Lead Research Assistant - Identifies and qualifies high-quality leads by analyzing your product, searching for target companies, and providing actionable outreach strategies.

• article-extractor - Extract full article text and metadata from web pages.
• brainstorming - Transform rough ideas into fully-formed designs through structured questioning and alternative exploration.
• Content Research Writer - Assists in writing high-quality content by conducting research, adding citations, improving hooks, and providing section-by-section feedback.
• family-history-research - Provides assistance with planning family history and genealogy research projects.
• Meeting Insights Analyzer - Analyzes meeting transcripts to uncover behavioral patterns including conflict avoidance, speaking ratios, filler words, and leadership style.
• NotebookLM Integration - Lets Claude Code chat directly with NotebookLM for source-grounded answers based exclusively on uploaded documents. By @PleasePrompto

• Canvas Design - Creates beautiful visual art in PNG and PDF documents using design philosophy and aesthetic principles for posters, designs, and static pieces.
• Image Enhancer - Improves image and screenshot quality by enhancing resolution, sharpness, and clarity for professional presentations and documentation.
• Slack GIF Creator - Creates animated GIFs optimized for Slack with validators for size constraints and composable animation primitives.
• Theme Factory - Applies professional font and color themes to artifacts including slides, docs, reports, and HTML landing pages with 10 pre-set themes.
• Video Downloader - Downloads videos from YouTube and other platforms for offline viewing, editing, or archival with support for various formats and quality options.
• youtube-transcript - Fetch transcripts from YouTube videos and prepare summaries.

• File Organizer - Intelligently organizes files and folders by understanding context, finding duplicates, and suggesting better organizational structures.
• Invoice Organizer - Automatically organizes invoices and receipts for tax preparation by reading files, extracting information, and renaming consistently.
• kaizen - Applies continuous improvement methodology with multiple analytical approaches, based on Japanese Kaizen philosophy and Lean methodology.
• n8n-skills - Enables AI assistants to directly understand and operate n8n workflows.
• Raffle Winner Picker - Randomly selects winners from lists, spreadsheets, or Google Sheets for giveaways and contests with cryptographically secure randomness.
• ship-learn-next - Skill to help iterate on what to build or learn next, based on feedback loops.
• tapestry - Interlink and summarize related documents into knowledge networks.

• git-pushing - Automate git operations and repository interactions.
• review-implementing - Evaluate code implementation plans and align with specs.
• test-fixing - Detect failing tests and propose patches or fixes.

• computer-forensics - Digital forensics analysis and investigation techniques.
• file-deletion - Secure file deletion and data sanitization methods.
• metadata-extraction - Extract and analyze file metadata for forensic purposes.
• threat-hunting-with-sigma-rules - Use Sigma detection rules to hunt for threats and analyze security events.

1. Click the skill icon (🧩) in your chat interface.
2. Add skills from the marketplace or upload custom skills.
3. Claude automatically activates relevant skills based on your task.

1. Place the skill in ~/.config/claude-code/skills/:

   mkdir -p ~/.config/claude-code/skills/
   cp -r skill-name ~/.config/claude-code/skills/

2. Verify skill metadata:

   head ~/.config/claude-code/skills/skill-name/SKILL.md

3. Start Claude Code:

   claude

4. The skill loads automatically and activates when relevant.

Use the Claude Skills API to programmatically load and manage skills:

import anthropic

client = anthropic.Anthropic(api_key="your-api-key")

response = client.messages.create(
    model="claude-3-5-sonnet-20241022",
    skills=["skill-id-here"],
    messages=[{"role": "user", "content": "Your prompt"}]
)

See the Skills API documentation for details.

Each skill is a folder containing a SKILL.md file with YAML frontmatter:

skill-name/
├── SKILL.md          # Required: Skill instructions and metadata
├── scripts/          # Optional: Helper scripts
├── templates/        # Optional: Document templates
└── resources/        # Optional: Reference files

---
name: my-skill-name
description: A clear description of what this skill does and when to use it.
---

# My Skill Name

Detailed description of the skill's purpose and capabilities.

## When to Use This Skill

- Use case 1
- Use case 2
- Use case 3

## Instructions

[Detailed instructions for Claude on how to execute this skill]

## Examples

[Real-world examples showing the skill in action]

• Focus on specific, repeatable tasks
• Include clear examples and edge cases
• Write instructions for Claude, not end users
• Test across Claude.ai, Claude Code, and API
• Document prerequisites and dependencies
• Include error handling guidance

We welcome contributions! Please read our Contributing Guidelines for details on:

• How to submit new skills
• Skill quality standards
• Pull request process
• Code of conduct

1. Ensure your skill is based on a real use case
2. Check for duplicates in existing skills
3. Follow the skill structure template
4. Test your skill across platforms
5. Submit a pull request with clear documentation

• Claude Skills Overview - Official announcement and features
• Skills User Guide - How to use skills in Claude
• Creating Custom Skills - Skill development guide
• Skills API Documentation - API integration guide
• Agent Skills Blog Post - Engineering deep dive

• Anthropic Skills Repository - Official example skills
• Claude Community - Discuss skills with other users
• Skills Marketplace - Discover and share skills

• Lenny's Newsletter - 50 ways people use Claude Code
• Notion Skills - Notion integration skills

• Have questions about integrating Composio with your auth setup? Hop on a quick call with us
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• Join our Discord

This repository is licensed under the Apache License 2.0.

Individual skills may have different licenses - please check each skill's folder for specific licensing information.

Note: Claude Skills work across Claude.ai, Claude Code, and the Claude API. Once you create a skill, it's portable across all platforms, making your workflows consistent everywhere you use Claude.