Claude Skills Collection

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

This repository combines skills from awesome-claude-skills with additional custom skills.

Contents

• Repository Structure
• What Are Claude Skills?
• Skills
  • Document Processing
  • Development & Code Tools
  • Data & Analysis
  • Business & Marketing
  • Communication & Writing
  • Creative & Media
  • Productivity & Organization
  • DevOps & Infrastructure
  • LLM Operations
• Getting Started
• Creating Skills
• Contributing
• Resources
• License

Repository Structure

• ルート直下の各フォルダ — 利用可能なスキル（本ドキュメントの Skills で一覧）。
• reference/ — 外部リポジトリのフォーク・参照用（例: anthropics/skills のフォーク）。
• _archive/ — 過去の出力や一時コピーの保管。通常利用には不要。

What Are Claude Skills?

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.

Skills

Document Processing

• document-processing - PDF、Excel、Wordドキュメントの読み取り・作成・編集・変換。テキスト抽出、フォーム入力、レポート生成、データ変換。
  • 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.

Development & Code Tools

• artifacts-builder - Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui).
• changelog-generator - Automatically creates user-facing changelogs from git commits by analyzing history and transforming technical commits into customer-friendly release notes.
• code-quality - コードレビュー、コミットメッセージ生成、リファクタリング提案、テスト作成支援。静的解析、コーディング規約チェック、セキュリティスキャン。
• git-branch-cleanup - ローカルGitブランチを分析し、安全にクリーンアップします。マージステータス、古さ、リモート追跡でブランチを分類し、インタラクティブな選択と安全ガードを提供します。
• mcp-builder - Guides creation of high-quality MCP (Model Context Protocol) servers for integrating external APIs and services with LLMs using Python or TypeScript.
• skill-creator - Provides guidance for creating effective Claude Skills that extend capabilities with specialized knowledge, workflows, and tool integrations.
• webapp-testing - Tests local web applications using Playwright for verifying frontend functionality, debugging UI behavior, and capturing screenshots.

Data & Analysis

• data-analysis - データ分析、可視化、統計処理。Excel、Pandas、SQL、統計解析、データ可視化の支援。

Business & Marketing

• 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.

Communication & Writing

• content-research-writer - Assists in writing high-quality content by conducting research, adding citations, improving hooks, and providing section-by-section feedback.
• meeting-insights-analyzer - Analyzes meeting transcripts to uncover behavioral patterns including conflict avoidance, speaking ratios, filler words, and leadership style.

Creative & Media

• 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.

Productivity & Organization

• 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.
• raffle-winner-picker - Randomly selects winners from lists, spreadsheets, or Google Sheets for giveaways and contests with cryptographically secure randomness.

DevOps & Infrastructure

• cicd - CI/CDパイプラインの設計・実装・トラブルシューティング。GitHub Actions、GitLab CI、CircleCI、Jenkinsの設定ファイル作成、ビルド最適化、デプロイ戦略（Blue-Green、Canary、Rolling）の実装。
• devops - DevOps実践、Kubernetes、モニタリング、本番環境運用、セキュリティ、Terraform。

LLM Operations

• llmops - LLM運用、評価、プロンプトエンジニアリング、RAG（Retrieval-Augmented Generation）の実装と最適化。

Other

• developer-growth-analysis - Analyzes developer growth and productivity metrics.
• skill-share - Share and discover Claude Skills.
• template-skill - Template for creating new Claude Skills.

Getting Started

Using Skills in Claude.ai

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.

Using Skills in Claude Code

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.

Using Skills via API

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.

Creating Skills

Skill Structure

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

Basic Skill Template

---
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]

Skill Best Practices

• 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

Contributing

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

Quick Contribution Steps

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

Resources

Official 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

Community Resources

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

License

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.

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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.