Best Claude Skills — SKILL.md Directory

gh-issues

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.

finishing-a-development-branch

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.

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.

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.

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.

brainstorming

A collaborative design-first booster that guides developers through brainstorming and specification before implementation, preventing premature coding and misaligned requirements.

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.

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.

receiving-code-review

Helps developers critically evaluate code review feedback by verifying technical soundness before implementation, preventing blind acceptance of potentially incorrect suggestions.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

by anthropics

agent-skillstypescript

153.1k18.0k

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.

by anthropics

agent-skillspython

153.1k18.0k

More Skills

pdf

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.

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.

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.

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.

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.

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.

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).

by ComposioHQ

agent-skillsai-agents

44.6k4.5k

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.

by sickn33

agentic-skillsai-agents

22.8k3.9k

CCCu

anthropicanthropic-claude

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.

by davila7

22.6k2.2k

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.

figma-implement-design

Automates translation of Figma designs into production-ready code with pixel-perfect visual accuracy using the Figma MCP workflow. Ideal for developers and designers who need to implement designs quickly while maintaining design fidelity.

figma-code-connect-components

This skill helps you connect Figma design components to their corresponding code implementations using Figma's Code Connect feature. It analyzes the Figma design structure, searches your codebase for matching components, and establishes mappings that maintain design-code consistency. Call to identi

plugin-creator

1. Run the scaffold script: 2. Open and replace placeholders. 3. Generate or update the repo marketplace entry when the plugin should appear in Codex UI ordering:

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.

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.

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.

figma-create-design-system-rules

This skill helps you generate custom design system rules tailored to your project's specific needs. These rules guide AI coding agents to produce consistent, high-quality code when implementing Figma designs, ensuring that your team's conventions, component patterns, and architectural decisions are

jupyter-notebook

Helps developers quickly create structured, reproducible Jupyter notebooks for experiments and tutorials using built-in templates and helper scripts. Ideal for data scientists, researchers, and educators who need consistent notebook scaffolding.

security-best-practices

Provides language-specific security best-practice reviews and improvement suggestions for Python, JavaScript/TypeScript, and Go code. Developers building secure applications benefit from automated security guidance tailored to their framework and language.

typescriptjavascript