Frontend

Prevent generic AI-generated email aesthetics and enforce distinctive, handcrafted design quality. Use when generating HTML emails, email templates, newsletters, marketing emails, or any email content. Ensures emails look professionally designed, not machine-generated. Applies anti-pattern detection and distinctive design requirements.

Validate idea and create detailed PRD. Saves docs/PRD.md to project.Use when: user describes an app idea, wants to create something new.Triggers: "I want to build", "create app", "make website", "build MVP","хочу создать", "сделать приложение".

Provide repository-wide documentation guidelines under `docs/`. Use tool-based inspection first, and keep `README.md` and `docs/` in sync with the current state of the app.

This skill provides comprehensive knowledge for TanStack Query v5 (React Query) server state management in React applications. It should be used when setting up data fetching with useQuery, implementing mutations with useMutation, configuring QueryClient, managing caching strategies, migrating from v4 to v5, implementing optimistic updates, using infinite queries, or encountering query/mutation errors.Use when: initializing TanStack Query in React projects, configuring QueryClient settings, creating custom query hooks, implementing mutations with error handling, setting up optimistic updates, using useInfiniteQuery for pagination, migrating from React Query v4 to v5, debugging stale data issues, fixing caching problems, resolving v5 breaking changes, implementing suspense queries, or setting up query devtools.Keywords: TanStack Query, React Query, useQuery, useMutation, useInfiniteQuery, useSuspenseQuery, QueryClient, QueryClientProvider, data fetching, server state, caching, staleTime, gcTime, query inva

Apply consistent coding style and formatting standards using automated tools (ESLint, Prettier, Ruff) with clear naming conventions, top-down code organization, and appropriate function/component sizing. Use this skill when writing any code in any language, naming files and variables, structuring code within files, organizing imports, configuring linters and formatters, or setting up pre-commit hooks. Apply when working on TypeScript/JavaScript files, Python files, .NET/C# files, configuration files (tsconfig.json, .prettierrc, .eslintrc), or any code that needs consistent formatting and naming. This skill ensures automated formatting with Prettier/Ruff (let tools handle it), ESLint/analyzer enforcement, TypeScript strict mode always enabled, proper naming conventions (PascalCase.tsx for React components, camelCase.ts for utilities, IPascalCase for interfaces with I prefix, PascalCase for types without prefix, camelCase for functions/constants/database fields/API endpoints/JSON keys, no underscore prefix for

Build terminal UIs with OpenTUI/React. Use when creating screens, components, handling keyboard input, managing scroll, or navigating between views. Covers JSX intrinsics, useKeyboard, scrollbox patterns, and state preservation.

Chrome Extension with React, Vite, and TypeScript.

Vitest - Modern TypeScript testing framework with Vite-native performance, ESM support, and TypeScript-first design

Use when implementing any feature or bugfix, before writing implementation code - write the test first, watch it fail, write minimal code to pass; ensures tests actually verify behavior by requiring failure first

Review React components for best practices, hooks usage, performance issues, accessibility, and TypeScript type safety. Use when you need to audit existing React components or provide code review feedback.

Enterprise Nextra documentation framework with Next.js. Use when building documentation sites, knowledge bases, or API reference documentation.

Advanced debugging skill for MyJKKN project. Specialized workflows for debugging Next.js 15, Supabase, React Query, TypeScript, and service layer issues. Includes automated analysis tools, common error patterns, and step-by-step troubleshooting guides for reducing debugging time. Use when investigating bugs, errors, performance issues, or unexpected behavior. (project)

Toolkit para interagir e testar aplicações web locais usando Chrome DevTools MCP. Suporta verificação de funcionalidade frontend, debugging de UI, captura de screenshots, análise de performance, inspeção de network e visualização de logs do console.

Comprehensive guide for accessing and automating Apple Mail using AppleScript, including reading emails, sending messages, and managing mailboxes.

Design and build reusable, composable UI components with single responsibility, clear interfaces, proper encapsulation, and minimal props following component best practices. Use this skill when creating or modifying React component files (.jsx, .tsx), Vue single-file components (.vue), Angular component files (.component.ts, .component.html), Svelte components (.svelte), Web Components, or any frontend UI component files in directories like components/, src/components/, app/components/, lib/components/, or ui/components/. Use this when designing component APIs by defining explicit, well-documented props with TypeScript interfaces or PropTypes and providing sensible default values for optional props, implementing component composition patterns by combining smaller, simpler components into more complex UIs rather than building monolithic structures that are hard to maintain, ensuring each component has a single clear responsibility and does one thing well following the Single Responsibility Principle, managing

Complete guide for adding new self-hosted applications to the home-server Ansible infrastructure. Use this skill when the user wants to add a new service, create a new role, or deploy a new self-hosted application. Covers role structure, integration patterns (firewall, NGINX, SELinux, DNS), installation methods (binary, package, container), and testing procedures.

Builds AI-powered applications with Vercel AI SDK including streaming responses, chat interfaces, and model integration. Use when integrating LLMs, building chat applications, streaming AI responses, or implementing AI features in React.

Next.js 16.1+ App Router patterns including Server Components, Client Components, Server Actions, Route Handlers, Turbopack, MCP integration, and modern React patterns. Use when building pages, layouts, data fetching, or API routes. Triggers on Next.js, App Router, RSC, or Server Actions questions.

Professional React component library for MyDetailArea dealership system. Creates enterprise-grade, accessible, and performant components following Notion-style design patterns with shadcn/ui, Tailwind CSS, and TypeScript. Includes data tables, forms, modals, metric cards, charts, and complex UI patterns. Use when building new features, creating reusable components, or implementing professional UI patterns.

Invoke Codex CLI for complex coding tasks requiring high reasoning capabilities. This skill should be used when users explicitly mention "Codex", use Codex, ask Codex, run codex, codex exec, request complex implementation challenges, advanced reasoning, or need high-reasoning model assistance. Automatically triggers on codex-related requests and supports session continuation for iterative development.