Best Claude Skills — SKILL.md Directory
Discover and install AI skills that teach Claude Code, Cursor, and Windsurf how to perform specific tasks — from code review to frontend design.
What is a Claude Skill?
Claude Skills are SKILL.md files that teach AI coding assistants like Claude Code, Cursor, and Windsurf how to perform specific tasks. Each skill contains structured instructions — from code review best practices to frontend design patterns — that the AI follows when you ask it to perform that task. Skills are open source, hosted on GitHub, and installed by copying the file into your project's skills directory. They're the easiest way to customize your AI assistant's behavior without writing prompts from scratch.
Most Popular
openclaw
gh-issues
An AI-powered GitHub issue orchestrator that automatically fetches issues, spawns sub-agents to implement fixes, opens PRs, and monitors review feedback. Ideal for developers wanting to automate bug triage and fix deployment workflows.
obra
brainstorming
A collaborative design-first booster that guides developers through brainstorming and specification before implementation, preventing premature coding and misaligned requirements.
obra
using-superpowers
This booster enforces mandatory skill tool invocation at the start of conversations to establish available capabilities. It's designed for users who want to ensure AI assistants always discover and declare applicable skills before responding.
Top Rated by Community
See allgh-issues
An AI-powered GitHub issue orchestrator that automatically fetches issues, spawns sub-agents to implement fixes, opens PRs, and monitors review feedback. Ideal for developers wanting to automate bug triage and fix deployment workflows.
brainstorming
A collaborative design-first booster that guides developers through brainstorming and specification before implementation, preventing premature coding and misaligned requirements.
using-superpowers
This booster enforces mandatory skill tool invocation at the start of conversations to establish available capabilities. It's designed for users who want to ensure AI assistants always discover and declare applicable skills before responding.
test-driven-development
Guides AI coding assistants to follow Test-Driven Development principles by writing failing tests before implementation code. Useful for developers who want to maintain code quality and ensure comprehensive test coverage.
receiving-code-review
Helps developers critically evaluate code review feedback by verifying technical soundness before implementation, preventing blind acceptance of potentially incorrect suggestions.
using-git-worktrees
Helps developers create isolated git worktrees for parallel feature development without disrupting their current workspace. Essential for teams managing multiple branches simultaneously.
writing-skills
A TDD-based framework for creating and validating AI agent skills through test-driven documentation and pressure testing. Developers building Claude Code agents or multi-agent systems benefit from this systematic approach to skill development and deployment.
subagent-driven-development
A skill booster that structures implementation execution by dispatching independent subagents for each task with two-stage review (spec compliance, then code quality), designed for developers managing multi-task implementation plans in a single session.
dispatching-parallel-agents
Enables concurrent investigation of multiple independent tasks by dispatching separate agents to each problem domain, saving time on parallel debugging and testing workflows.
systematic-debugging
A debugging methodology booster that enforces root-cause analysis before proposing fixes, helping developers avoid quick patches that mask underlying issues. Useful for anyone working with code in Claude who needs structured debugging processes.
writing-plans
A skill that generates detailed, bite-sized implementation plans for multi-step tasks before coding begins, designed for engineers unfamiliar with the codebase. Useful for teams wanting structured planning and onboarding guidance.
finishing-a-development-branch
Guides developers through the final stages of completing a development branch by verifying tests pass and presenting structured options for merging, creating PRs, or cleanup. Useful for developers who want a systematic approach to integrating completed work.
requesting-code-review
This booster dispatches a code-reviewer subagent to catch issues before merging, promoting early and frequent code review practices. It benefits developers using claude_code who want to maintain code quality throughout their workflow.
executing-plans
A skill for executing pre-written implementation plans with critical review and checkpoint validation, ideal for breaking complex tasks into separate sessions with human oversight.
verification-before-completion
This booster enforces a disciplined verification workflow that prevents false success claims by requiring developers to run and confirm verification commands before marking work complete. It's essential for any development team wanting to eliminate premature PRs and false positives.
theme-factory
Theme Factory provides a toolkit for applying professional, pre-designed color and font themes to various artifacts like slides, documents, and HTML pages. Developers and content creators benefit from rapid styling without manual design work.
claude-api
This skill guides developers in building LLM-powered applications using Claude and Anthropic SDKs, with smart triggering based on API imports and user intent. Ideal for developers looking to integrate Claude into their projects with language-specific best practices.
algorithmic-art
This booster enables users to create original generative and algorithmic art using p5.js with interactive parameter exploration, ideal for artists, designers, and creative coders wanting to explore computational aesthetics.
webapp-testing
A Playwright-based toolkit for testing local web applications, enabling developers to verify frontend functionality, debug UI behavior, and capture browser diagnostics. Essential for AI coding assistants building and validating web applications.
xlsx
The xlsx skill enables Claude to work with spreadsheet files—opening, editing, creating, cleaning, and converting .xlsx, .xlsm, .csv, and .tsv files. It's essential for users who need programmatic spreadsheet manipulation without leaving their AI assistant.
skill-creator
skill-creator enables users to build, refine, and evaluate AI skills through an iterative workflow with testing and performance benchmarking. Developers and AI engineers benefit from streamlined skill development and optimization.
internal-comms
A skill that helps employees write consistent internal communications (status reports, newsletters, incident reports, etc.) using their company's preferred formats and templates.
docx
The docx skill enables AI assistants to create, read, edit, and manipulate Word documents with professional formatting, tables of contents, images, and tracked changes. It's useful for developers and users who need to programmatically generate or process .docx files as part of their workflows.
web-artifacts-builder
Web Artifacts Builder is a skill that enables AI assistants to create complex, multi-component React applications with Tailwind CSS and shadcn/ui for Claude.ai artifacts. Developers building sophisticated interactive web interfaces benefit from streamlined scaffolding and bundling workflows.
More Skills
mcp-builder
mcp-builder is a guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to integrate with external services and APIs. It helps developers build well-designed tool interfaces in Python or TypeScript for AI-powered applications.
brand-guidelines
Applies Anthropic's official brand colors, typography, and design standards to artifacts created in Claude Code, ensuring consistent corporate visual identity. Useful for developers building internal tools, demos, or branded content that should reflect Anthropic's design language.
pptx
This skill enables AI assistants to intelligently handle PowerPoint files by triggering whenever .pptx files are involved—whether creating presentations, extracting content, editing slides, or working with templates. It's valuable for developers and users who need seamless automation around presentation workflows.
frontend-design
A skill that empowers developers to create polished, production-ready frontend interfaces and React components with distinctive design that avoids generic AI aesthetics. Ideal for anyone building web UIs, landing pages, dashboards, or custom web components.
doc-coauthoring
doc-coauthoring guides users through a structured three-stage workflow (context gathering, refinement, and reader testing) for collaboratively creating technical documentation, proposals, and specs. It benefits technical writers, engineers, and product managers who need to efficiently co-author structured content.
canvas-design
A skill that generates original visual designs in PNG and PDF formats by first establishing design philosophies, then expressing them visually. Useful for users who need posters, artwork, or static designs created programmatically.
A PDF processing skill that enables users to read, extract, merge, split, and manipulate PDF files through an AI coding assistant. Developers and business users benefit from automated PDF workflows without writing complex code.
slack-gif-creator
A toolkit for creating animated GIFs optimized for Slack with specific dimension, FPS, and color constraints. Developers building Slack integrations or bots will find this useful for generating compliant emoji and message GIFs.
Building LLM-Powered Applications with Claude
This skill helps you build LLM-powered applications with Claude. Choose the right surface based on your needs, detect the project language, then read the relevant language-specific documentation. Scan the target file (or, if no target file, the prompt and project) for non-Anthropic provider markers
nutrient-document-processing
This booster enables Claude Code to process, convert, and extract data from documents (PDF, DOCX, XLSX, PPTX, HTML, images) using the Nutrient DWS API, including OCR, editing, signing, and form-filling capabilities. Developers building document automation workflows benefit from seamless integration with multiple file formats.
last30days
Research ANY topic across Reddit, X, YouTube, and other sources. Surface what people are actually discussing, recommending, betting on, and debating right now. To detect first run: check if exists. If it does NOT exist, this is a first run. Do NOT run any Bash commands or show any command output to
ip2location-io-automation
Heuristic scoring (no AI key configured).
outlook-calendar-automation
Automates Outlook Calendar operations like creating events, managing attendees, and scheduling meetings through Rube MCP integration. Useful for developers building agentic systems that need programmatic calendar control.
game-design
Game design principles. GDD structure, balancing, player psychology, progression.
upstash-qstash
Upstash QStash expert booster enables developers to build serverless message queues, scheduled jobs, and reliable HTTP-based task delivery without infrastructure management. Ideal for AI coding assistants helping teams implement async processing, cron jobs, and webhook systems.
matchms
Matchms enables mass spectrometry data processing and analysis with support for multiple file formats, spectral similarity calculations, and metadata harmonization. This booster is essential for metabolomics researchers, bioinformaticians, and data scientists working with MS/MS datasets.
security-ownership-map
Analyzes git repositories to map security ownership, identify bus factors, and detect orphaned sensitive code, exporting results for graph visualization. Essential for security teams and DevOps engineers managing code risk and maintainer dependencies.
A PDF skill that guides AI assistants in reading, creating, and validating PDF files using Python tools like reportlab, pdfplumber, and Poppler rendering. Developers working with PDF generation, extraction, and layout validation will find this particularly useful.
screenshot
This booster enables OS-level desktop and window screenshot capture when users explicitly request it or when tool-specific capabilities are unavailable. Developers and AI assistants benefit from having a fallback capture mechanism for debugging, documentation, and UI inspection tasks.
notion-knowledge-capture
Automates the conversion of conversations and decisions into organized Notion wiki entries, how-tos, and FAQs with proper linking. Ideal for teams wanting to systematize knowledge capture and avoid losing context from chats and notes.
notion-meeting-intelligence
notion-meeting-intelligence helps teams prepare professional meeting materials by pulling Notion context, researching via Codex, and generating tailored agendas and pre-reads for specific attendees and meeting types. It's ideal for managers, coordinators, and team leads who need to streamline meeting prep workflows.
figma-generate-design
Use this skill to create or update full-page screens in Figma by reusing the published design system — components, variables, and styles — rather than drawing primitives with hardcoded values. The key insight: the Figma file likely has a published design system with components, color/spacing variabl
openai-docs
Provides developers with authoritative, up-to-date OpenAI API documentation and guidance by prioritizing official MCP tools for questions about building with OpenAI products. Ideal for developers integrating OpenAI APIs who need reliable, cited references.
figma-create-new-file
Use the MCP tool to create a new blank Figma file in the user's drafts folder. This is typically used before when you need a fresh file to work with. This skill accepts optional arguments: Parse the arguments from the skill invocation. If editorType is not provided, default to . If fileName is not
Recently Updated
See allhero-story
Safe referencing of real people — their wisdom, skills, and contributions — without impersonation. K-lines, not cosplay. LLMs can impersonate anyone. This is: A Hero-Story card activates a conceptual cluster associated with a person:
devio
あなたはDevelopersIOの記事執筆・公開アシスタントです。 ユーザーの入力の最初の単語でサブコマンドを判定する: すべてのContentful操作は以下のパスで呼び出す:
namecheap
A Node.js skill for domain registration, availability checking, DNS management, and pricing via the Namecheap API. Useful for developers and AI assistants automating domain operations and building domain-centric applications.
sentry-known-pitfalls
1. Verify SDK initialization happens before app starts 2. Check for single initialization point (no multiple init calls) 3. Use framework-specific SDK package for your framework
Tech Blog (Zenn)
This booster automates the creation of new Claude Code skills by generating properly structured SKILL.md files with YAML frontmatter and validated naming conventions. It's useful for developers building custom skills within the Claude Code ecosystem who need consistency and correct formatting.
help
Guide users through the capabilities of this workspace setup. Use AskUserQuestion to guide the user: Based on response, show relevant tools:
Why use Skills?
Here's why thousands of developers add these to their AI workflow every week.
Instant expertise
Skills encode domain knowledge directly into Claude's context — no need to re-explain conventions on every task.
Consistent output
Every team member gets the same AI behaviour, enforcing code style, naming conventions, and architectural patterns automatically.
Open source
Every skill on ImAiFox is publicly available on GitHub. Inspect the code, fork it, modify it — no vendor lock-in.
Community-verified
Skills are ranked by GitHub stars, forks, and maintenance health so you install what actually works in production.
How to install
- 1
Find a skill
Browse the directory above, filter by category, or search for your use case.
- 2
Copy the install command
Each skill page has a one-click copy button with the terminal command.
- 3
Run it in your terminal
Paste the command into your project root. It downloads the SKILL.md file into the correct directory.
- 4
Restart Claude Code
Reload the window or restart Claude Code so the new skill is picked up automatically.
Frequently Asked Questions
Common questions about skills answered.
What is a Claude Skill?
A Claude Skill is a SKILL.md file that teaches Claude Code, Cursor, or Windsurf how to perform a specific task. Skills contain structured instructions — coding standards, step-by-step workflows, or domain expertise — that the AI follows whenever you ask it to do that task. They're the fastest way to customize your AI assistant without writing prompts from scratch.
How do I install a Claude Skill?
To install a Claude Skill, copy the SKILL.md file into your project's .claude/skills/ directory (for Claude Code) or .cursor/skills/ directory (for Cursor). Then restart Claude Code or reload your IDE window so the skill is picked up. Some skills include a one-line install command you can run directly in your terminal.
Are Claude Skills free?
Yes — all Claude Skills indexed on ImAiFox are open-source and free to use. They're hosted publicly on GitHub under various open-source licenses. You can inspect, modify, and use them in any project.
What's the difference between a Skill and a Prompt?
A Skill (SKILL.md) is Claude-specific — it integrates directly into Claude Code's skill system and is invoked automatically for relevant tasks. A Prompt is a general instruction set (like .cursorrules or SYSTEM_PROMPT.md) that works with any AI assistant. Skills offer deeper integration; prompts offer broader compatibility.
How many Claude Skills are available?
ImAiFox indexes hundreds of Claude Skills sourced from public GitHub repositories, verified for quality and actively maintained. New skills are discovered and added automatically every hour.