Claude Skills
The open format is called Agent Skills and works in Claude Code, Codex, Cursor and other agents — most people know it as Claude Skills.
Every Agent Skill we could find on GitHub, deduplicated by content. 79 404 files from 1 741 authors, of which 61 763 are unique — the rest is the same skill repackaged into someone else's repository. For each one: what it weighs in tokens, whether it ships runnable scripts, and which MCP servers it needs.
Build evaluation frameworks for agent systems. Use when testing agent performance, validating context engineering choices, or measuring improvements over time.
| Token-efficient library API documentation fetcher using Context7 MCP with 77% token savings. Fetches code examples, API references, and usage patterns for published libraries (React, Next.js, Prisma, etc). Use when users ask "how do I use X library", need code examples, "Prisma query syntax", "Next.js routing API". NOT for exploring repo internals/source code (use researching-with-deepwiki) or local files.
Comprehensive Framer Motion animation library for React. Covers motion components, variants, gestures, page transitions, and scroll animations. Use when adding animations to React/Next.js applications.
Next.js 16+ uses App Router with Server Components by default. Client Components are only used when interactivity is needed (hooks, event handlers, browser APIs).
All TypeScript types are defined in `frontend/types/index.ts`. Types match backend API response structure and provide type safety across the frontend application.
| Installs Claude Code hooks for automatic skill usage measurement. Use when setting up skill tracking infrastructure in a new project. NOT when hooks are already installed (run verify.py to check).
A set of resources to help me write all kinds of internal communications, using the formats that my company likes to use. Claude should use this skill whenever asked to write some sort of internal communications (status reports, leadership updates, 3P updates, company newsletters, FAQs, incident reports, project updates, etc.).
Design and implement memory architectures for agent systems. Use when building agents that need to persist state across sessions, maintain entity consistency, or reason over structured knowledge.
Design multi-agent architectures for complex tasks. Use when single-agent context limits are exceeded, when tasks decompose naturally into subtasks, or when specializing agents improves quality.
Neon PostgreSQL serverless database - connection pooling, branching, serverless driver, and optimization. Use when deploying to Neon or building serverless applications.
| Next.js development tooling via MCP. Inspect routes, components, build info, and debug Next.js apps. Use when working on Next.js applications, debugging routing, or inspecting app structure. NOT for general React or non-Next.js projects.
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| Operates local Kubernetes clusters with Minikube for development and testing. Use when setting up local K8s, deploying applications locally, or debugging K8s issues. Covers Minikube, kubectl essentials, local image loading, and networking.
| Use when defining reliability targets, writing postmortems, implementing SLO alerting, or establishing on-call practices. NOT for initial service development (use scaffolding skills instead).
| Research GitHub, GitLab, and Bitbucket repositories using DeepWiki MCP server. Use when exploring unfamiliar codebases, understanding project architecture, or asking questions about how a specific open-source project works. Provides AI-powered repo analysis and RAG-based Q&A about source code. NOT for fetching library API docs (use fetching-library-docs instead) or local files.
| Build production-grade FastAPI backends with SQLModel, Dapr integration, and JWT authentication. Use when building REST APIs with Neon PostgreSQL, implementing event-driven microservices with Dapr pub/sub, scheduling jobs, or creating CRUD endpoints with JWT/JWKS verification. NOT when building simple scripts or non-microservice architectures.
| Builds AI agents using OpenAI Agents SDK with async/await patterns and multi-agent orchestration. Use when creating tutoring agents, building agent handoffs, implementing tool-calling agents, or orchestrating multiple specialists. Covers Agent class, Runner patterns, function tools, guardrails, and streaming responses. NOT when using raw OpenAI API without SDK or other agent frameworks like LangChain.
| Implement real-time streaming UI patterns for AI chat applications. Use when adding response lifecycle handlers, progress indicators, client effects, or thread state synchronization. Covers onResponseStart/End, onEffect, ProgressUpdateEvent, and client tools. NOT when building basic chat without real-time feedback.
| Build beautiful, accessible UIs with shadcn/ui components in Next.js. Use when creating forms, dialogs, tables, sidebars, or any UI components. Covers installation, component patterns, react-hook-form + Zod validation, and dark mode setup. NOT when building non-React applications or using different component libraries.
| Systematic methodology for debugging bugs, test failures, and unexpected behavior. Use when encountering any technical issue before proposing fixes. Covers root cause investigation, pattern analysis, hypothesis testing, and fix implementation. Use ESPECIALLY when under time pressure, "just one quick fix" seems obvious, or you've already tried multiple fixes. NOT for exploratory code reading.
Design tools that agents can use effectively. Use when creating new tools for agents, debugging tool-related failures, or optimizing existing tool sets.
| Use when working with document creation, PDF manipulation, presentation generation, tracked changes, or converting between formats.
| Creates and edits Excel spreadsheets with formulas, formatting, and financial modeling standards. Use when working with .xlsx files, financial models, data analysis, or formula-heavy spreadsheets. Covers formula recalculation, color coding standards, and common pitfalls.
This skill should be used when the user asks to "generate architecture view", "show service dependency graph", "map request flows", "show event topology", "group services by domain", "visualize architecture", or mentions cross-repository architecture analysis, service mapping, or architectural visualization.
This skill should be used when the user asks to "generate repository documentation", "create a README", "document API", "write architecture docs", "add CONTRIBUTING guide", "update repo docs", "document codebase", or mentions repository documentation, codebase analysis, or cross-repository integration documentation.
This skill should be used when the user asks to "generate repository metadata", "create catalog-info.yaml", "add repo metadata", "document repository structure", or mentions generating structured metadata for service catalog or architecture documentation.
Pointers for Copilot/agents to apply Perigon conventions
Angular 21+ standalone/Material/signal conventions for Perigon WebApp
Perigon ASP.NET Core + EF Core + Aspire conventions
Systematically analyze codebase structure, complexity, dependencies, and architectural patterns to understand project organization
Create distinctive, production-grade frontend interfaces with exceptional design quality. Use when building web components, pages, or applications that need creative, polished aesthetics.
Git best practices for commits, branches, pull requests, and collaboration workflows following Conventional Commits and GitFlow patterns
Optimize Next.js 15 applications for performance, Core Web Vitals, and production best practices using App Router patterns
Run comprehensive quality checks including linting, type checking, tests, and security audits before commits or deployments
Comprehensive testing strategy using Vitest for unit/integration tests and Playwright for E2E tests with best practices and coverage targets
Skill for managing model provider priorities with authentication (OAuth/Subscription/API), usage limits, and automatic fallback across all major AI providers
Access ATXP paid API tools for web search, AI image generation, music creation, video generation, and X/Twitter search. Use when users need real-time web search, AI-generated media (images, music, video), or X/Twitter search. Requires authentication via `npx atxp login`.
Advanced coverage analysis with actionable insights. Use to identify coverage gaps, suggest specific tests, track coverage trends, and highlight critical uncovered code. Essential for reaching 80%+ coverage target.
Automatically apply safe quality fixes including formatting (Black, isort), linting (Ruff auto-fixes), and resolve formatter conflicts. Use when quality checks fail or before committing code.
Generate comprehensive test boilerplate following project TDD conventions. Use when creating new tests for modules, classes, or functions. Automatically creates tests with proper structure, type hints, docstrings, and AAA pattern.
Use when building or debugging WordPress Interactivity API features (data-wp-* directives, @wordpress/interactivity store/state/actions, block viewScriptModule integration) including performance, hydration, and directive behavior.
Design and document RESTful and GraphQL APIs with OpenAPI/Swagger specifications, authentication patterns, versioning strategies, and best practices. Use for: (1) Creating API specifications, (2) Designing REST endpoints, (3) GraphQL schema design, (4) API authentication and authorization, (5) API versioning strategies, (6) Documentation generation
Professional brand consistency enforcement and corporate identity management with support for color palettes, typography, logo usage, tone of voice, and multi-channel brand application. Use for: (1) Creating brand style guides, (2) Enforcing brand consistency across documents, (3) Logo usage validation, (4) Typography standards, (5) Color palette management, (6) Brand voice guidelines
Automated code review with security scanning, quality metrics, and best practices analysis. Use when reviewing code for: (1) Security vulnerabilities and common attack vectors, (2) Code quality issues and maintainability concerns, (3) Performance bottlenecks and optimization opportunities, (4) Best practices and design patterns, (5) Test coverage and testing strategies, (6) Documentation quality and completeness
Professional data visualization creation using D3.js with support for interactive charts, custom visualizations, animations, and responsive design. Use for: (1) Creating custom interactive charts, (2) Building dashboards, (3) Network/graph visualizations, (4) Geographic data mapping, (5) Time series analysis, (6) Real-time data visualization, (7) Complex multi-dimensional data displays
Comprehensive Docker containerization workflow covering multi-stage builds, docker-compose orchestration, image optimization, debugging, and production best practices. Use when containerizing applications, setting up development environments, or deploying with Docker.
Environment configuration and secrets management skill using UV for Python projects. Handles .env files, environment variables, secrets encryption, multi-environment setups, and secure configuration patterns. Use when setting up project environments, managing API keys, or implementing configuration best practices.
Systematic debugging and error resolution using the TRACE framework (Trace, Read, Analyze, Check, Execute). Use when debugging errors, analyzing stack traces, investigating failures, root cause analysis, or troubleshooting production issues.
Advanced Git operations and workflows including interactive rebasing, conflict resolution, history manipulation, bisecting for bugs, cherry-picking, reflog recovery, and branch management strategies. Use for: (1) Interactive rebasing and commit cleanup, (2) Complex merge conflict resolution, (3) Git bisect for bug hunting, (4) History rewriting and cleanup, (5) Branch strategy implementation (Git Flow, trunk-based), (6) Recovering lost commits with reflog
Professional internal communications creation and management with templates for status reports, newsletters, announcements, team updates, and cross-functional communication. Use for: (1) Weekly/monthly status reports, (2) Company newsletters, (3) All-hands announcements, (4) Team updates, (5) Policy communications, (6) Change management communications, (7) Recognition and celebrations
Professional Markdown documentation skill for creating polished README files, changelogs, contribution guides, and technical documentation. Use for: (1) README generation with badges and sections, (2) Automated changelog from git history, (3) Table of contents generation, (4) Contribution guidelines, (5) Technical documentation formatting, (6) Code documentation with syntax highlighting
Comprehensive guide for building Model Context Protocol (MCP) servers with support for tools, resources, prompts, and authentication. Use when: (1) Creating custom MCP servers, (2) Integrating external APIs with Claude, (3) Building tool servers for specialized domains, (4) Creating resource providers for documentation, (5) Implementing authentication and security
Comprehensive PDF manipulation, extraction, and generation with support for text extraction, form filling, merging, splitting, annotations, and creation. Use when working with .pdf files for: (1) Extracting text and tables, (2) Filling PDF forms, (3) Merging/splitting PDFs, (4) Creating PDFs programmatically, (5) Adding watermarks/annotations, (6) PDF metadata management
Professional PowerPoint presentation creation, editing, and automation with support for layouts, templates, charts, images, and formatting. Use when working with .pptx files for: (1) Creating presentations from scratch, (2) Editing existing presentations, (3) Applying templates and themes, (4) Adding charts and visualizations, (5) Bulk slide generation, (6) Presentation automation
Expert SQL query writing, optimization, and database schema design with support for PostgreSQL, MySQL, SQLite, and SQL Server. Use when working with databases for: (1) Writing complex SQL queries with joins, subqueries, and window functions, (2) Optimizing slow queries and analyzing execution plans, (3) Designing database schemas with proper normalization, (4) Creating indexes and improving query performance, (5) Writing migrations and handling schema changes, (6) Debugging SQL errors and query issues
Professional web application testing and automation using Playwright with support for multiple browsers, mobile emulation, screenshot capture, network interception, and comprehensive test assertions. Use for: (1) E2E testing across browsers, (2) UI automation, (3) Form testing and validation, (4) Visual regression testing, (5) API mocking and interception, (6) Mobile responsive testing
Comprehensive Excel spreadsheet creation, editing, and analysis with support for formulas, formatting, charts, data analysis, and visualization. Use when working with .xlsx, .xlsm, .csv files for: (1) Creating spreadsheets with formulas and formatting, (2) Reading/analyzing data, (3) Modifying existing spreadsheets while preserving formulas, (4) Creating charts and visualizations, (5) Data transformation and analysis, (6) Multi-worksheet operations
Expert guidance on Swift Concurrency best practices, patterns, and implementation. Use when developers mention: (1) Swift Concurrency, async/await, actors, or tasks, (2) "use Swift Concurrency" or "modern concurrency patterns", (3) migrating to Swift 6, (4) data races or thread safety issues, (5) refactoring closures to async/await, (6) @MainActor, Sendable, or actor isolation, (7) concurrent code architecture or performance optimization.
Write, review, or improve SwiftUI code following best practices for state management, view composition, performance, modern APIs, Swift concurrency, and iOS 26+ Liquid Glass adoption. Use when building new SwiftUI features, refactoring existing views, reviewing code quality, or adopting modern SwiftUI patterns.
| Use when setting up API clients - TanStack Query, Axios, JWT token management, error handling, or response parsing. NOT when plain fetch calls, non-API data handling, or unrelated UI logic.
Claude Skills — questions
Answers built from the skills we actually parsed.