Development Claude Skills
8 673 development skills from 759 authors. They write and change code. Half of them fit into 1 830 tokens or less — that is what one costs your context window when the agent loads it. 1 213 ship runnable scripts rather than instructions alone. 42 of them cannot work without an MCP server, most often rube. We also found 1 239 copies of these same skills sitting in other people's repositories — counted once here, not 1 239 times.
8 673 unique 759 authors 10 updated this month 1 368 from vendors
Windows App Development CLI (winapp) for building, packaging, and deploying Windows applications. Use when asked to initialize Windows app projects, create MSIX packages, generate AppxManifest.xml, manage development certificates, add package identity for debugging, sign packages, publish to the Microsoft Store, create external catalogs, or access Windows SDK build tools. Supports .NET (csproj), C++, Electron, Rust, Tauri, and cross-platform frameworks targeting Windows.
Find and explore Windows desktop APIs. Use when building features that need platform capabilities — camera, file access, notifications, UI controls, AI/ML, sensors, networking, etc. Discovers the right API for a task and retrieves full type details (methods, properties, events, enumeration values).
UWP-to-WinUI 3 migration reference. Maps legacy UWP APIs to correct Windows App SDK equivalents with before/after code snippets. Covers namespace changes, threading (CoreDispatcher to DispatcherQueue), windowing (CoreWindow to AppWindow), dialogs, pickers, sharing, printing, background tasks, and the most common Copilot code generation mistakes.
Google Workspace Admin SDK: Audit logs and usage reports.
| Analyzes and safely cleans up local Git branches. Categorizes branches by merge status, staleness, and remote tracking. Provides interactive selection with safety guards. Use when the user wants to clean up branches, delete old branches, organize Git branches, or asks about which branches can be safely deleted.
Migrate prompts and code from Claude Sonnet 4.0, Sonnet 4.5, or Opus 4.1 to Opus 4.5. Use when the user wants to update their codebase, prompts, or API calls to use Opus 4.5. Handles model string updates and prompt adjustments for known Opus 4.5 behavioral differences. Does NOT migrate Haiku 4.5.
React composition patterns that scale. Use when refactoring components with boolean prop proliferation, building flexible component libraries, or designing reusable APIs. Triggers on tasks involving compound components, render props, context providers, or component architecture. Includes React 19 API changes.
Interact with Obsidian vaults using the Obsidian CLI to read, create, search, and manage notes, tasks, properties, and more. Also supports plugin and theme development with commands to reload plugins, run JavaScript, capture errors, take screenshots, and inspect the DOM. Use when the user asks to interact with their Obsidian vault, manage notes, search vault content, perform vault operations from the command line, or develop and debug Obsidian plugins and themes.
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.
React Native and Expo best practices for building performant mobile apps. Use when building React Native components, optimizing list performance, implementing animations, or working with native modules. Triggers on tasks involving React Native, Expo, mobile performance, or native platform APIs.
Best practices for Remotion - Video creation in React
Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktrees with smart directory selection and safety verification
Skill for integrating Better Auth - the comprehensive TypeScript authentication framework.
Query Google Places API (New) via the goplaces CLI for text search, place details, resolve, and reviews. Use for human-friendly place lookup or JSON output for scripts.
Automate HappyCapy skill creation by finding and adapting existing skills from anthropics/skills repository. Handles environment constraints (Python 3.11, Node.js 24, no Docker). Use when user wants to create or adapt skills for specific tasks.
Mobile-first design thinking and decision-making for iOS and Android apps. Touch interaction, performance patterns, platform conventions. Teaches principles, not fixed values. Use when building React Native, Flutter, or native mobile apps.
Autonomous 9-agent swarm that continuously contributes to open source projects on GitHub. Finds good-first-issues, analyzes requirements, writes code/tests/docs, creates PRs, and responds to reviews - all automatically with learning.
ALWAYS use when editing or working with *.ts, *.tsx, *.mts, *.cts files or code importing \"typescript\". Consult for debugging, best practices, or modifying typescript, TypeScript.
Provides Typer templates, handles registration, and ensures consistency. ALWAYS use this skill when adding or modifying CLI commands. Use when user requests to add/create/implement/build/write a new command (e.g., "add edit command", "create search feature") OR update/modify/change/edit an existing command.
Create learning paths for programming tools, and define what information should be researched to create learning guides. Use when user asks to learn, understand, or get started with any programming tool, library, or framework.
Provides checklist for reviewing Typer CLI command implementations. Covers structure, Annotated syntax, error handling, exit codes, display module usage, destructive action patterns, and help text conventions. Use when user asks to review/check/verify a CLI command, wants feedback on implementation, or asks if a command follows best practices.
Fetches Defold API documentation. Use when working with Defold engine APIs, looking up Lua/C++ functions, or needing API reference for game development.
Provides xmath API reference and in-place math optimization patterns for Defold. Use when writing performance-critical math code, optimizing vector/quaternion/matrix operations, or when the user mentions xmath, zero-allocation math, or reducing Lua GC pressure.
Retrieve up-to-date documentation for software libraries, frameworks, and components via the Context7 API. This skill should be used when looking up documentation for any programming library or framework, finding code examples for specific APIs or features, verifying correct usage of library functions, or obtaining current information about library APIs that may have changed since training.
This skill provides guidance for creating agents and applications with the GitHub Copilot SDK. It should be used when the user wants to create, modify, or work on software that uses the GitHub Copilot SDK in TypeScript, Python, Go, or .NET. The skill covers SDK usage patterns, CLI configuration, custom tools, MCP servers, and custom agents.
Initialise a git repository with optional agent commit instructions and .gitignore. Use when users say "here be git", "init git", "initialise git", or otherwise indicate they want to set up version control in the current directory.
Semantic code search using mgrep for efficient codebase exploration. This skill should be used when searching or exploring codebases with more than 30 non-gitignored files and/or nested directory structures. It provides natural language semantic search that complements traditional grep/ripgrep for finding features, understanding intent, and exploring unfamiliar code.
> This skill provides comprehensive instructions for interacting with the Raindrop.io bookmarks service via its REST API using curl and jq. It covers authentication, CRUD operations for collections, raindrops (bookmarks), tags, highlights, filters, import/export, and backups. Use this skill whenever the user asks to work with their bookmarks from Raindrop.io, including reading, creating, updating, deleting, searching, or organising bookmarks and collections.
Generate beautiful code snippet images using ray.so. This skill should be used when the user asks to create a code image, code screenshot, code snippet image, or wants to make their code look pretty for sharing. Saves images locally to the current working directory or a user-specified path.
This skill provides instructions for interacting with Todoist using the td CLI tool. It covers CRUD operations for tasks/projects/sections/labels/comments, and requires confirmation before destructive actions. Use this skill when the user wants to read, create, update, or delete Todoist data.
AWS API Gateway for REST and HTTP API management. Use when creating APIs, configuring integrations, setting up authorization, managing stages, implementing rate limiting, or troubleshooting API issues.
AWS Step Functions workflow orchestration with state machines. Use when designing workflows, implementing error handling, configuring parallel execution, integrating with AWS services, or debugging executions.
React useEffect best practices from official docs. Use when writing/reviewing useEffect, useState for derived values, data fetching, or state synchronization. Teaches when NOT to use Effect and better alternatives.
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.
| Collect Abridge debug evidence for support tickets and troubleshooting. Use when filing Abridge support tickets, collecting diagnostic data, or preparing evidence for escalation to Abridge engineering. "abridge diagnostics", "collect abridge evidence".
| Apply production-ready patterns for Abridge clinical AI integration. Use when building reusable Abridge client wrappers, implementing HIPAA-compliant error handling, or establishing team coding standards for healthcare AI.
Build production-ready AI agents using Google's Agent Development Kit with Claude integration, React patterns, multi-agent orchestration, and comprehensive tool libraries
| introspection, Firefly job failure analysis, PDF Services error codes, and network-layer diagnostics for Adobe endpoints. Trigger with phrases like "adobe hard bug", "adobe mystery error", "adobe impossible to debug", "difficult adobe issue", "adobe deep debug".
| Diagnose and fix common Adobe API errors across Firefly Services, PDF Services, Photoshop API, and Adobe I/O Events. Use when encountering Adobe errors, debugging failed requests, or troubleshooting integration issues. Trigger with phrases like "adobe error", "fix adobe", "adobe not working", "debug adobe", "adobe 403", "adobe 429".
| Collect Adobe debug evidence for support tickets and troubleshooting. Use when encountering persistent issues, preparing support tickets, or collecting diagnostic information for Adobe API problems. Trigger with phrases like "adobe debug", "adobe support bundle", "collect adobe logs", "adobe diagnostic".
| Install and configure Adobe Developer Console OAuth Server-to-Server credentials. Use when setting up a new Adobe integration, configuring API credentials, or initializing Adobe SDKs (Firefly Services, PDF Services, I/O Runtime). Trigger with phrases like "install adobe", "setup adobe", "adobe auth", "configure adobe credentials", "adobe developer console".
| Apply production-ready patterns for Adobe Firefly Services SDK, PDF Services SDK, and raw REST API usage in TypeScript and Python. Use when implementing Adobe integrations, refactoring SDK usage, or establishing team coding standards for Adobe APIs. Trigger with phrases like "adobe SDK patterns", "adobe best practices", "adobe code patterns", "idiomatic adobe", "adobe typescript".
| Analyze, plan, and execute Adobe SDK upgrades — including the critical JWT-to-OAuth migration, PDF Services SDK v3-to-v4, and Photoshop API endpoint changes (cutout v1 to remove-background v2). Trigger with phrases like "upgrade adobe", "adobe migration", "adobe breaking changes", "update adobe SDK", "jwt to oauth".
| Automatic activation for ALL Google Cloud Agent Development Kit (ADK) and Agent Starter Pack operations - multi-agent systems, containerized deployment, RAG agents, and production orchestration.
| Diagnose and fix common Alchemy SDK and Web3 API errors. Use when encountering rate limits, RPC failures, invalid parameters, or blockchain query errors with the Alchemy SDK. "alchemy debug", "fix alchemy issue".
| Collect Alchemy SDK debug evidence for troubleshooting and support tickets. Use when encountering persistent issues, preparing support tickets, or debugging blockchain query failures.
| Install the Alchemy SDK and configure API key authentication for Web3 development. Use when setting up blockchain API access, creating an Alchemy app, or configuring multi-chain RPC endpoints.
| Optimize Alchemy SDK performance with caching, batching, and multi-chain parallelism. Use when reducing latency for blockchain queries, optimizing CU consumption, or scaling dApps for high request volumes. "alchemy caching", "alchemy batch requests".