📦 Claude Skills Collection

A curated collection of official and community-built Claude Skills.
Anthropic Skills are modular tools that extend the capabilities of Claude AI—unlocking workflows for coding, document creation, design, data analysis, research, and more.

This repository gathers and organizes all publicly available Claude Skills, including both built-in tools by Anthropic and creative contributions from the community. Browse by category, explore capabilities, and kickstart your own Skill creation.

💡 Note: Skills require Claude Pro, Max, Team, or Enterprise access with code execution enabled.

What Are Claude Skills?

Claude Skills are specialized modules that Claude can use to perform structured, multi-step tasks. Each skill is a lightweight folder with a clear instruction interface, and optionally includes Python code, templates, and assets.

Skills allow Claude to:

Create and edit documents (Word, Excel, PPT)
Parse and analyze structured data
Write and debug code
Generate creative visual assets
Automate research, testing, or collaboration tasks

Official Skills are created by Anthropic and auto-invoked when needed. You can also install or build custom skills to meet your unique workflow needs.

📄 Document Skills

Name	Description	Link
docx	Create and edit Microsoft Word documents with formatting, comments, and tracked changes	Source
pdf	Extract content from PDFs, split/merge documents, or create new ones	Source
pptx	Generate and edit PowerPoint presentations	Source
xlsx	Manipulate Excel files, formulas, tables, and charts	Source
revealjs-skill	Generate polished, professional presentations using the Reveal.js HTML presentation framework	Source

🎨 Creative & Design

Name	Description	Link
algorithmic-art	Create generative art using p5.js	Source
canvas-design	Render layout-based visual designs in PNG/PDF	Source
slack-gif-creator	Generate Slack-optimized animated GIFs	Source
brand-guidelines	Apply company branding to outputs	Source
theme-factory	Create and apply visual themes for documents	Source
nano-banana-image-generation	Create images using Nano Banana Pro	Source

💻 Development & Code Tools

Name	Description	Link
artifacts-builder	Generate clean HTML/CSS/React UI components	Source
MCP Server	Build Claude-compatible API connectors	Source
Changelog Generator	Create changelogs from commit history	Source
using-git-worktrees	Manage feature branches safely in isolated Git worktrees	Source
test-driven-development	Write tests before implementation to drive development	Source
subagent-driven-development	Use multiple Claude subagents to coordinate complex implementations	Source
executing-plans	Execute structured plans with checkpoints and verification steps	Source
finishing-a-development-branch	Complete development branches with testing and review flow	Source
preserving-productive-tensions	Manage architectural decisions by preserving competing viewpoints to balance innovation and stability	Source
web-artifacts-builder	Create elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui)	Source
pypict-claude-skill	Design comprehensive test cases using PICT (Pairwise Independent Combinatorial Testing) for optimized test suites	Source
aws-skills	AWS development with CDK best practices, cost optimization, and serverless/event-driven architecture patterns	Source
claude-starter	Production-ready Claude Code configuration template with 40 auto-activating skills and TOON format support	Source
move-code-quality-skill	Analyzes Move language packages against the official Move Book Code Quality Checklist	Source
claude-code-terminal-title	Gives each Claude Code terminal window a dynamic title describing the work being done	Source
audit-website	Cli website auditing tool for seo, performance, security and 140+ other rules	Source

📊 Data & Analysis

Name	Description	Link
csv-data-summarizer	Generate statistics and charts from CSVs	Source
root-cause-tracing	Trace and diagnose the source of data or logic errors	Source
postgres	Execute safe read-only SQL queries against PostgreSQL databases with multi-connection support	Source

🔬 Scientific & Research Tools

Name	Description	Link
claude-scientific-skills	125+ scientific skills for bioinformatics, cheminformatics, clinical research, and machine learning	Source
materials-simulation-skills	Agent skills for computational materials science: numerical stability, time-stepping, linear solvers, and simulation validation	Source

📝 Writing & Research

Name	Description	Link
article-extractor	Extract full content from web articles	Source
Content Research Writer	Research and refine written content with feedback	Source
internal-comms	Draft formal internal comms and reports	Source
writing-plans	Create structured written plans with clear milestones	Source
writing-skills	Enhance instructional and technical writing quality	Source
brainstorming	Facilitate creative idea generation sessions	Source
family-history-research	Provides assistance with planning family history and genealogy research projects	Source

📚 Learning & Knowledge

Name	Description	Link
tapestry	Build a linked knowledge graph from documents	Source
ship-learn-next	Recommend next steps based on feedback loops	Source
using-superpowers	Learn and apply best practices for Superpowers workflows	Source
sharing-skills	Learn how to contribute new skills via pull requests	Source
collision-zone-thinking	Combine unrelated concepts to find new creative or problem-solving connections	Source
inversion-exercise	Flip assumptions to uncover hidden insights and constraints	Source
meta-pattern-recognition	Identify patterns across domains to uncover universal principles	Source
scale-game	Stress-test ideas at extreme scales to expose hidden weaknesses or truths	Source
simplification-cascades	Reduce complexity by discovering insights that simplify multiple elements at once	Source
tracing-knowledge-lineages	Track how ideas evolve across iterations and influences	Source

🎥 Media & Content

Name	Description	Link
youtube-transcript	Summarize YouTube transcripts	Source
claude-epub-skill	Parse and analyze EPUB eBooks	Source
Image Enhancer	Improve resolution and clarity of screenshots	Source
Video Downloader	Download YouTube videos for use in Claude	Source
imagen	Generate images using Google Gemini's image generation API for UI mockups, icons, and visual assets	Source

🤝 Collaboration & Project Management

Name	Description	Link
Meeting Insights Analyzer	Analyze meeting dynamics and communication patterns	Source
Notion Integration Skills	Official Notion connectors for Claude	Source
commands	Manage and automate recurring project commands	Source
receiving-code-review	Process and apply code review feedback	Source
requesting-code-review	Request and manage structured code reviews	Source
dispatching-parallel-agents	Coordinate multiple Claude subagents on shared tasks	Source
remembering-conversations	Recall facts, insights, and context from past Claude Code sessions	Source
git-pushing	Automate git operations and repository interactions	Source
linear-claude-skill	Manage Linear issues, projects, and teams with MCP tools and GraphQL fallbacks	Source
linear-cli-skill	A skill teaching Claude how to use linear-CLI as an alternative to Linear MCP	Source
review-implementing	Evaluate code implementation plans and align with specs	Source
test-fixing	Detect failing tests and propose patches or fixes	Source

🔐 Security & Testing

Name	Description	Link
Trail of Bits Security Skills	Security skills for static analysis with CodeQL/Semgrep, variant analysis, code auditing, and fix verification	Source
webapp-testing	UI test automation using Playwright	Source
ffuf_claude_skill	Fuzz test web apps with FFUF + Claude	Source
defense-in-depth	Implement multi-layered testing and security best practices	Source
systematic-debugging	Structured debugging with hypothesis testing and validation	Source
testing-anti-patterns	Identify and prevent testing anti-patterns	Source
testing-skills-with-subagents	Verify new skills using subagents and test cycles	Source
verification-before-completion	Run verification checks before closing tasks	Source
condition-based-waiting	Use logical conditions to control test flow timing	Source
varlock-claude-skill	Secure environment variable management ensuring secrets never appear in sessions, terminals, logs, or git commits	Source

⚙️ Utility & Automation

Name	Description	Link
file-organizer	Clean up file structures, rename documents	Source
invoice-organizer	Parse and categorize invoices	Source
raffle-winner-picker	Pick winners using secure randomness	Source
skill-creator	Build your own skill interactively	Source
template-skill	A starting template for new skills	Source
using-superpowers	Automate Superpowers workflows and validation tasks	Source
gardening-skills-wiki	Maintain the skills wiki, ensuring naming consistency and metadata quality	Source
pulling-updates-from-skills-repository	Sync and pull the latest skill updates from repositories	Source

Getting Started

To use a skill:

Clone the Anthropic Claude Skills repo.
Enable Code Execution and Skill loading in Claude.
Upload the skill folder (or link to a Git repo with an SKILL.md).
Ask Claude to activate or use the skill!

Skill Quality Standards & Template

Writing a great skill starts with a well-structured SKILL.md file. AgentSkills.io provides the canonical specification for the Claude Skills format, including validation rules and a detailed checklist. Anthropic also publishes best practices for skill authoring at platform.claude.com.

Minimal SKILL.md Template

Every skill should include a SKILL.md with proper YAML frontmatter at the top:

---
name: my-skill-name
description: |
  Generates weekly status reports from project data.
  Use when the user asks for a summary of recent activity.
---

The body of SKILL.md (below the frontmatter) contains the instructions Claude follows when the skill is activated.

Key Quality Criteria

name -- Use kebab-case, 1-64 characters (e.g., csv-data-summarizer, not CSV Data Summarizer).
description -- Write in third person. State what the skill does and when to use it. Keep it under 300 characters.
Body length -- Keep the instruction body under 500 lines. Long skills should be split into focused sub-skills.
Progressive disclosure -- Start with the most common usage, then cover edge cases. Claude reads top-down, so put the critical path first.
No secrets in source -- Never embed API keys, tokens, or credentials in SKILL.md. Use environment variables or MCP configuration instead.

Reference Implementations

anthropics/skills -- Anthropic's official skill repository with production-quality examples.
AgentSkills.io Validation Checklist -- Use this to validate your SKILL.md before publishing.
Anthropic Skill Authoring Guide -- Official best practices from Anthropic.

Contributing

Have a skill to add?
Open a pull request or submit your repo link in an issue with:

Name of the skill
Short description
Category
Link to the source

License

This repo lists and links to skills under various licenses.
Please refer to each linked repository for license terms.