Frontend

Bootstrap a new Unity project for a 2D management/simulation game. Use when you need to create the Unity project, choose URP/UI approach, set up folder structure, gitignore, packages (Input System/TextMeshPro), and establish a minimal scene + tick loop scaffold before porting gameplay systems.

Email template development with React Email and Tailwind CSS. Use when creating or modifying email templates, testing email rendering, or building email HTML from React components.

Index markdown documentation - headings, diagrams, tables, code blocks, links. Use for quick overview without reading full files.

Engineering principles for crafting well-built front-end user interfaces. When Claude needs to ensure the HTML, CSS, JS is performant and maintainable.

Create an educational MicroSim using the vis-network JavaScript library. Each MicroSim is a directory located in the /docs/sims folder. It has a main.html file that can be referenced with an iframe. The main.html file imports the main JavaScript code to run the educational MicroSim.

TanStack Query for React Native data fetching. Use when implementing server state.

This skill provides comprehensive knowledge for building static websites with Hugo static site generator. It should be used when setting up Hugo projects (blogs, documentation sites, landing pages, portfolios), integrating Tailwind CSS v4 for custom styling, integrating headless CMS systems (Sveltia CMS or TinaCMS), deploying to Cloudflare Workers with Static Assets, configuring themes and templates, and preventing common Hugo setup errors.Use this skill when encountering these scenarios: scaffolding new Hugo sites, choosing between Hugo Extended and Standard editions, integrating Tailwind CSS v4 with Hugo Pipes, configuring hugo.yaml or hugo.toml files, integrating PaperMod or other themes via Git submodules, setting up Sveltia CMS or TinaCMS for content management, deploying to Cloudflare Workers or Pages, troubleshooting baseURL configuration, resolving theme installation errors, fixing frontmatter format issues (YAML vs TOML), preventing date-related build failures, setting up PostCSS with Hugo, or sett

Consulta la documentación oficial de MakerKit (next-supabase-turbo) bajo demanda. Usa cuando necesites información sobre patrones, configuración o APIs de MakerKit que no esté en el código local. Incluye índice completo de 150 páginas.

Foundational instructions covering core DevOps principles, culture (CALMS), and key metrics (DORA) to guide agents in understanding and promoting effective software delivery.

Orchestrator guiding developers through implementation, debugging, and verification phases across specialized code quality skills (project)

Generates src/main.ts application entry point. Creates different versions based on app type - micro-frontend with single-spa lifecycle or standalone SPA initialization.

Production deployment patterns for Composable Svelte SSR applications. Use when deploying to Fly.io, Docker, or any cloud platform. Covers multi-stage Docker builds, Fly.io configuration, security hardening, performance optimization, and integration with Composable Rust backends.

Use this skill for Next.js App Router patterns, Server Components, Server Actions, Cache Components, and framework-level optimizations. Covers Next.js 16 breaking changes including async params, proxy.ts migration, Cache Components with "use cache", and React 19.2 integration. For deploying to Cloudflare Workers, use the cloudflare-nextjs skill instead. This skill is deployment-agnostic and works with Vercel, AWS, self-hosted, or any platform.Keywords: Next.js 16, Next.js App Router, Next.js Pages Router, Server Components, React Server Components, Server Actions, Cache Components, use cache, Next.js 16 breaking changes, async params nextjs, proxy.ts migration, React 19.2, Next.js metadata, Next.js SEO, generateMetadata, static generation, dynamic rendering, streaming SSR, Suspense, parallel routes, intercepting routes, route groups, Next.js middleware, Next.js API routes, Route Handlers, revalidatePath, revalidateTag, next/navigation, useSearchParams, turbopack, next.config

Convert documents (PDF, EPUB, PPTX, DOCX, XLSX, HTML, images) to Markdown/JSON/HTML using marker-pdf with Claude Haiku LLM enhancement for accurate table, math, and form extraction. Use when user needs to extract content from documents, convert PDFs to markdown, or process document files.

Use when receiving code review feedback, before implementing suggestions, especially if feedback seems unclear or technically questionable - requires technical rigor and verification, not performative agreement or blind implementation

PostCSS configuration template and validation logic for Tailwind CSS processing with Autoprefixer. Includes 4 required standards (required base plugins, critical plugin order with tailwindcss first and autoprefixer last, file naming as postcss.config.js, required dependencies). Use when creating or auditing postcss.config.js files to ensure correct CSS build pipeline.

Builds real-time collaborative features with Liveblocks including presence, cursors, storage, comments, and notifications. Use when adding multiplayer experiences, collaborative editing, or live cursors to React applications.

Product roadmap prioritization and feature decision framework. Use when the user needs help deciding what to build next, evaluating feature ideas, prioritizing their backlog, challenging feature requests, planning their product roadmap, or when they ask questions like "should I build this feature?", "what should I work on next?", "help me prioritize", "is this feature worth building?", or when discussing product strategy and feature decisions.

Access official Claude Code documentation including comprehensive guides on hooks, MCP servers, agent skills, slash commands, settings, CLI reference, security, memory, plugins, and troubleshooting. Use when the user asks about Claude Code features, configuration, capabilities, or best practices. ALWAYS use this skill instead of guessing about Claude Code functionality - it contains the authoritative documentation from docs.anthropic.com with automatic updates. Also includes comprehensive skill creation guide with helper scripts when users want to create new skills.

Main TDD workflow command. Finds next test in PLAN.md and executes complete TDD cycle automatically. This is the primary command for TDD development as specified in CLAUDE.md.