IDE & Editors

Build content-heavy sites with Git-backed TinaCMS. Provides visual editing and content management for blogs, documentation, and marketing sites with non-technical editors. Use when implementing Next.js, Vite+React, or Astro CMS setups, self-hosting on Cloudflare Workers, or troubleshooting ESbuild compilation errors, module resolution issues, or Docker binding problems.

Seven integrated slash commands for complete project lifecycle: /explore-idea (validation), /plan-project (planning docs), /plan-feature (add features), /wrap-session (checkpoint), /continue-session (resume), /workflow (guidance), /release (safety checks). Use when: starting new projects, managing sessions across context windows, adding features to existing projects, or preparing releases with safety checks. Saves 35-55 minutes per project lifecycle.

Build authentication systems for TypeScript/Cloudflare Workers with social auth, 2FA, passkeys, organizations, RBAC, OAuth 2.1 provider, and 15+ plugins. Self-hosted alternative to Clerk/Auth.js. IMPORTANT: Requires Drizzle ORM or Kysely for D1 - no direct D1 adapter. Workers require nodejs_compat flag. v1.4.10 adds OAuth 2.1 Provider (MCP deprecated), Bearer tokens, Google One Tap, SCIM, Anonymous auth, rate limiting, Patreon/Kick/Vercel providers. Use when: self-hosting auth on Cloudflare D1, building OAuth provider for MCP servers, multi-tenant SaaS, admin dashboards, API key auth, guest users, or troubleshooting D1 adapter errors, session caching, rate limits, database hooks.

Build stateless MCP servers with TypeScript on Cloudflare Workers using @modelcontextprotocol/sdk. Provides patterns for tools, resources, prompts, and authentication (API keys, OAuth, Zero Trust). Use when exposing APIs to LLMs, integrating Cloudflare services (D1, KV, R2, Vectorize), or troubleshooting export syntax errors, unclosed transport leaks, or CORS misconfigurations.

Build complete React features with proper layered architecture including UI components, business logic, API integration, and state management. Use this skill when users request implementing features like "user authentication", "shopping cart", "product listing", "file upload", or any complete functionality that requires UI + business logic + data fetching. Generates all layers - presentation (components), business logic (hooks/stores/validation), and data access (API calls/React Query). Integrates with react-component-generator for UI and provides production-ready, maintainable code following best practices.

Frontend-focused code review skill for React/TypeScript/Tailwind projects. Analyzes code quality, security vulnerabilities (XSS, CSRF), performance issues, accessibility (WCAG), React best practices, hooks usage, component architecture, responsive design, and SEO. Use when users request code review, want feedback on components, ask about frontend security, performance optimization, or accessibility compliance. Provides actionable feedback with severity levels and fix suggestions.

Analyze and optimize user prompts for clarity, specificity, and completeness using interactive questionnaires or direct analysis. Use this skill when user requests are vague, ambiguous, incomplete, or lack necessary details. Supports two modes - Interactive Mode (uses AskUserQuestion tool for guided clarification) and Direct Analysis Mode (provides optimization suggestions). Triggers on prompts containing vague language like "something", "thing", "stuff", "it", or when requests lack context, technical specifications, success criteria, or examples. When user requests interactive/questionnaire mode, use AskUserQuestion to guide them through structured questions. Helps transform unclear requests into well-structured, actionable prompts.

Analyze UI design screenshots and generate React components with TypeScript and Tailwind CSS. Use this skill when the user provides UI mockups, design screenshots, or Figma exports and requests implementation. Provides detailed layout analysis, component breakdown, design token extraction, and production-ready code generation following best practices.

Guide for using Repomix - a powerful tool that packs entire repositories into single, AI-friendly files. Use when packaging codebases for AI analysis, generating context for LLMs, creating codebase snapshots, analyzing third-party libraries, or preparing repositories for security audits.

Guide for implementing Google Gemini API audio capabilities - analyze audio with transcription, summarization, and understanding (up to 9.5 hours), plus generate speech with controllable TTS. Use when processing audio files, creating transcripts, analyzing speech/music/sounds, or generating natural speech from text.

Guide for implementing Turborepo - a high-performance build system for JavaScript and TypeScript monorepos. Use when setting up monorepos, optimizing build performance, implementing task pipelines, configuring caching strategies, or orchestrating tasks across multiple packages.

Guide for implementing Better Auth - a framework-agnostic authentication and authorization framework for TypeScript. Use when adding authentication features like email/password, OAuth, 2FA, passkeys, or advanced auth functionality to applications.

Guide for implementing Tailwind CSS - a utility-first CSS framework for rapid UI development. Use when styling applications with responsive design, dark mode, custom themes, or building design systems with Tailwind's utility classes.

Guide for implementing Cloudflare Browser Rendering - a headless browser automation API for screenshots, PDFs, web scraping, and testing. Use when automating browsers, taking screenshots, generating PDFs, scraping dynamic content, extracting structured data, or testing web applications. Supports REST API, Workers Bindings (Puppeteer/Playwright), MCP servers, and AI-powered automation. (project)

Design philosophy and UI guidelines based on NeXTSTEP User Interface Guidelines (1993). Use when designing interfaces (TUI, GUI, web apps, dashboards) that need clear information hierarchy, intuitive controls, and user-respecting interaction patterns. Especially relevant for developer tools, data-dense interfaces, and applications requiring high information density without cognitive overload.

Provides automated refactoring suggestions and complexity reduction strategies using PMAT(Pragmatic AI Labs MCP Agent Toolkit). Use this skill when:- User requests code refactoring, optimization, or improvement- Complexity analysis reveals high-complexity functions (cyclomatic > 10)- Code review identifies maintainability issues- Technical debt needs to be addressed systematically- Preparing legacy code for modernizationSupports 25+ languages with data-driven refactoring recommendations based on complexity metrics,mutation testing results, and industry best practices (Fowler's refactoring catalog).

Analyzes polyglot codebases with multiple programming languages using PMAT(Pragmatic AI Labs MCP Agent Toolkit). Use this skill when:- Working with projects containing multiple programming languages- Assessing cross-language integration patterns and quality- Understanding language distribution and architectural boundaries- Comparing quality metrics across language ecosystems- Identifying language-specific best practices violationsSupports 25+ languages including Rust, Python, TypeScript, JavaScript, Go, C++, Java,Ruby, PHP, Swift, Kotlin, C, C#, Scala, Haskell, Elixir, Clojure, Dart, Lua, R, and more.Provides unified quality assessment across heterogeneous codebases.

Tracks and manages technical debt using PMAT (Pragmatic AI Labs MCP Agent Toolkit).Use this skill when:- User asks about technical debt, TODO comments, or code quality issues- Planning sprint work and need to prioritize debt repayment- Conducting code audits or technical debt assessments- Tracking debt accumulation trends over time- Creating technical debt reports for stakeholdersDetects SATD (Self-Admitted Technical Debt) annotations: TODO, FIXME, HACK, XXX, NOTE comments.Provides debt quantification in hours, prioritization by severity, and repayment tracking.

Download and process videos from YouTube and other platforms. Supports video download, audio extraction, format conversion (mp4, webm), and Whisper transcription. Use when user mentions YouTube download, video conversion, audio extraction, transcription, mp4, webm, ffmpeg, yt-dlp, or whisper transcription.

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.