A curated list of awesome LLM Skills, resources, and tools for customizing AI workflows on tools like Claude Code, Codex, Gemini CLI, Qwen Code, OpenCode etc.

• What Are LLM Skills?
• Quick Start
• Skills
• Platforms
  • Claude Code (Anthropic)
  • Claude Desktop (Anthropic)
  • Codex CLI (OpenAI)
  • Gemini CLI (Google)
  • OpenCode (Open-source CLI)
  • Qwen Code (Alibaba)
• Contributing
  • Quick Contribution Steps
• Resources
  • Official Documentation
  • Community Resources
• License

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

1. Create a project-local or user-level skill folder Use one of these discovery paths so Claude Code finds it automatically:

   • Project: .claude/skills/webapp-testing/
   • User: ~/.claude/skills/webapp-testing/

2. Add SKILL.md (required)

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 LLMs 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 LLM, not end users
• Document prerequisites and dependencies
• Include error handling guidance

3. Keep supporting files small Add only what's needed (e.g., small fixtures in resources/, helper scripts). This keeps skills snappy to load and easier for Claude to apply.

4. Load the skill

   • Claude (web or Desktop): Upload a ZIP via Settings → Capabilities → Skills → Upload skill.
   • Claude Code (terminal): Place the folder under .claude/skills/ (project) or ~/.claude/skills/ (user). Claude Code discovers skills from these locations.
   • Other CLIs (Codex, Gemini, OpenCode, Qwen Code): They don't use Anthropic's Skills format natively—reference your SKILL.md in prompts (Gemini CLI supports @ file/context attachments).

5. Use it Just ask in natural language, optionally mentioning the skill by name—for example: "Use the Webapp Testing skill to validate the checkout flow and generate report.md." Claude can auto-invoke relevant skills based on your request.

6. (Optional) Kickstart a repo session in Claude Code Slash-commands are supported; many users run /init to generate a CLAUDE.md and bootstrap context before working.

• Notion Knowledge Capture - Converts chats and decisions into structured Notion pages and database entries with proper linking.
• Notion Meeting Intelligence - Preps meetings from Notion context and creates internal pre-reads plus external agendas.
• Notion Research Documentation - Searches Notion, synthesizes multiple pages, and writes cited research docs back to Notion.
• Notion Spec To Implementation - Turns Notion specs into task plans with acceptance criteria and progress tracking.

• 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.
• 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
• 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
• 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
• postgres - Execute safe read-only SQL queries against PostgreSQL databases with multi-connection support and defense-in-depth security. By @sanjay3290
• 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.
• imagen - Generate images using Google Gemini's image generation API for UI mockups, icons, illustrations, and visual assets. By @sanjay3290
• 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.
• 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.

Set‑up and enable skills

• Installation: Ensure Node 20+ and Visual Studio Code are installed. Claude Code enhances Claude's coding capabilities with runtime access, terminal support, and code generation.
• Getting Started: Launch Claude Code from VS Code or terminal. Claude Code automatically discovers skills from .claude/skills/ (project) or ~/.claude/skills/ (user) directories.
• Using Skills: Just describe what you need in natural language. Claude Code activates relevant skills automatically based on your request context.

Set‑up and enable skills

• Claude Desktop provides a native application experience for Claude across Windows, macOS, and Linux platforms.
• Access skills through Settings → Capabilities → Skills. Upload custom skills as ZIP files or select from available community skills.
• Desktop app supports all Claude features including file uploads, code generation, and real-time collaboration.

Set‑up and enable skills

• OpenAI's Codex powers GitHub Copilot and can be accessed via CLI tools for code generation and automation.
• While Codex doesn't natively support Anthropic's Skills format, you can adapt skills by including instructions in your prompts or configuration files.
• Best for code completion, refactoring, and generating boilerplate code across multiple programming languages.

Set‑up and enable skills

• Install Node 20+ and then install Gemini CLI via npm install -g @google/gemini-cli or run it on‑demand with npx @google/gemini-cli.
• Run gemini and sign in with your Google account; a browser window will open for authentication. Gemini CLI currently doesn't have built‑in support for Anthropic skills, but you can follow skill instructions by loading your own SKILL.md file and referencing it in prompts. Use the @ symbol to upload files containing your skill instructions.

Set‑up and enable skills

• Install OpenCode with a one‑line script: curl -fsSL https://opencode.ai/install | bash.
• Run opencode auth login and choose your provider (e.g., Cerebras) to configure your API key.
• Start the interface with opencode and initialize your project context using /init.
• OpenCode doesn't natively load Anthropic skills, but you can place a skills/ folder in your project and ask OpenCode to read the SKILL.md file; this approximates skills functionality and lets you reuse instructions across tools.

Set‑up and enable skills

• Ensure Node 20+ is installed, then install Qwen Code with npm install -g @qwen-code/qwen-code@latest and verify with qwen --version. Alternatively, clone the repository and install locally.
• Start a session by running qwen. Qwen Code currently doesn't support Anthropic skills directly, but you can still adopt the skill pattern by creating a skills/ directory and prompting Qwen Code to follow the instructions in your SKILL.md files.

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

• LLM Skills Overview - Official announcement and features
• Skills User Guide - How to use skills in LLMs
• 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
• Notion Skills - Notion integration skills

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.