SKILL.md files package domain expertise into something any AI agent can use. Drop one into your project and your agent learns how to process PDFs, design interfaces, write tests, or whatever the skill teaches.
1388 skills
SQL database migrations with zero-downtime strategies for
Expert .NET backend architect specializing in C#, ASP.NET Core,
Master Rust 1.75+ with modern async patterns, advanced type system
You are a React component architecture expert specializing in scaffolding production-ready, accessible, and performant components. Generate complete component implementations with TypeScript, tests, s
Expert database administrator specializing in modern cloud
Use when about to claim work is complete, fixed, or passing, before committing or creating PRs - requires running verification commands and confirming output before making any success claims; evidence before assertions always
Token usage tracker for OpenAI, Claude, and Gemini APIs with MCP (Model Context Protocol) support. Pass accurate API costs to your users. - 🎯 Simple Integration - One line to wrap your API client - 📊 Automatic Tracking - No manual token counting - 💰 Accurate Pricing - Up-to-date pricing for all models (2025) - 🔄 Multiple Providers - OpenAI, Claude, and Gemini support - 📈 User Management - Tra
Analyze Stitch projects and synthesize a semantic design system into DESIGN.md files
When the user wants to optimize post-signup onboarding, user activation, first-run experience, or time-to-value. Also use when the user mentions "onboarding flow," "activation rate," "user activation," "first-run experience," "empty states," "onboarding checklist," "aha moment," or "new user experience." For signup/registration optimization, see signup-flow-cro. For ongoing email sequences, see email-sequence.
React Native upgrade workflow covering updated templates, dependencies, and common pitfalls. Use when migrating a React Native app to a newer release.
Version: 4.1.0 | License: MIT (open-core) Website & Docs: https://codeguardian.studio CCG stands out as the most comprehensive MCP server for Claude Code: Key Differentiators: - All-in-one: Guard + Metrics + Workflow + Memory in a single server - 113+ MCP tools: The most comprehensive toolset available - Session management: Resume work across conversations - Real-time progress: Track refactoring p
Teaches agents to iteratively build websites using Stitch with an autonomous baton-passing loop pattern
ALWAYS use this skill when creating pull requests — never create a PR directly without it. Follows Sentry conventions for PR titles, descriptions, and issue references. Trigger on any create PR, open PR, submit PR, make PR, push and create PR, or prepare changes for review task.
Optimize website and web application performance including loading speed, Core Web Vitals, bundle size, caching strategies, and runtime performance
Use when completing tasks, implementing major features, or before merging to verify work meets requirements
3D game development principles. Rendering, shaders, physics, cameras.
Runtime debugging workflow with automated log collection. Use when fixing bugs that require runtime evidence (values, types, flow), when you'd otherwise ask user to "open DevTools, reproduce X, tell me what you see", or when bug depends on user interaction that can't be simulated. This skill automates log collection - logs are captured server-side and accessible programmatically.
Extracts and analyzes competitors' ads from ad libraries (Facebook, LinkedIn, etc.) to understand what messaging, problems, and creative approaches are working. Helps inspire and improve your own ad campaigns.
Use when working with full stack orchestration full stack feature
MCP Server for AI-powered video editing. Let Claude, GPT, or any AI agent edit videos through natural language. Add to your Claude Desktop config (claudedesktopconfig.json): Then restart Claude Desktop. You can now edit videos through conversation. Layer Compositing Model: Output: 1920x1080, 30fps, H.264 + AAC, MP4 atsurae.ai also exposes a REST API that any AI agent can call directly, without MCP
You are an API mocking expert specializing in realistic mock services for development, testing, and demos. Design mocks that simulate real API behavior and enable parallel development.
Implement comprehensive testing strategies using Jest, Vitest, and Testing Library for unit tests, integration tests, and end-to-end testing with mocking, fixtures, and test-driven development. Use when writing JavaScript/TypeScript tests, setting up test infrastructure, or implementing TDD/BDD workflows.
Create and manage Claude Code skills following Anthropic best practices. Use when creating new skills, modifying skill-rules.json, understanding trigger patterns, working with hooks, debugging skill activation, or implementing progressive disclosure. Covers skill structure, YAML frontmatter, trigger types (keywords, intent patterns, file paths, content patterns), enforcement levels (block, suggest, warn), hook mechanisms (UserPromptSubmit, PreToolUse), session tracking, and the 500-line rule.
PC and console game development principles. Engine selection, platform features, optimization strategies.