Web & Frontend

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Expert in React 19 and Next.js 16 development with modern patterns including Server Components, hooks, and performance optimization. Use when creating new UI components, refactoring React code, or implementing interactive features.

majiayu000 Bundle

生成符合项目规范的 React 组件。当用户要求创建组件、新建 React 组件或生成组件文件时使用

majiayu000 Bundle

Comprehensive guide to React component patterns used in the Organizador de Base de Conhecimento Enterprise educational platform. This skill covers functional components with hooks, composition patterns, state management, props flow, and error handling strategies essential for building maintainable React applications. Learn how to create reusable, testable components following React best practices while avoiding common antipatterns like prop drilling, unnecessary class components, and improper state management. The skill emphasizes composition over inheritance, unidirectional data flow, and separation of concerns. Real-world examples are taken directly from the project codebase, including CLearningSystem, BashLearningSystem, Breadcrumb, AreaCard, and FlashcardModal components. Each pattern is demonstrated with production code showing how architectural decisions were implemented in a 5,500+ line React application with 17 components. Key topics include functional components (vs class components), React Hooks (us

majiayu000 Bundle

Compound component patterns for TMNL. Covers context-based composition, slot patterns, and Object.assign exports. Use for building composable component APIs like VantaCard.Header, Modal.Content, etc.

majiayu000 Bundle

ScalarDB Cluster および ScalarDB Analytics のアーキテクチャ、サイジング、構成を見積もるスキル。 性能要件、可用性要件、クラウド環境からScalarDB Cluster Pod数、Kubernetes構成、 バックエンドDB、API Gateway、監視システム等の全体構成を見積もる。 ScalarDB Analyticsを使用する場合はEMR/Databricksのサイジングも含む。 使用タイミング: - 「ScalarDBのサイジングを見積もりたい」「ScalarDB環境を構築したい」 - 「ScalarDB Clusterの構成を決めたい」「ScalarDBの費用を算出したい」 - 「開発/テスト/ステージング/本番環境のScalarDB構成」 - CI/CD、Blue/Green、Canary Deploymentを含む本番環境設計 - 「ScalarDB Analyticsを使いたい」「分析クエリ環境を構築したい」 - 「EMR/Databricksのサイジングを見積もりたい」 出力: Markdown形式の見積もり結果 + HTML形式のレポート 費用: USD/JPY両建て（為替レート明記）

majiayu000 Bundle

Convert various file formats (PDF, Office documents, images, audio, web content, structured data) to Markdown optimized for LLM processing. Use when converting documents to markdown, extracting text from PDFs/Office files, transcribing audio, performing OCR on images, extracting YouTube transcripts, or processing batches of files. Supports 20+ formats including DOCX, XLSX, PPTX, PDF, HTML, EPUB, CSV, JSON, images with OCR, and audio with transcription.

majiayu000 Bundle

Next.js App Router における Server Actions と Route Handlers の使い分け、セキュリティ、および実装規約。

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Configure Next.js projects with ESLint, Prettier, and recommended settings. Use when initializing Next.js projects, setting up linting, or when user mentions Next.js setup/Next.jsセットアップ.

majiayu000 Bundle

Local dev environment setup and troubleshooting for Skriptoteket (FastAPI + Vue/Vite): PDM scripts, docker hot-reload stack, DB/migrations, seeding/CLIs, env vars, logs/correlation, and dependency/build pitfalls. Use for running/debugging the stack; not for backend architecture or business logic.

majiayu000 Bundle

SolidJS advanced JSX attributes: @once for static values, attr:*/bool:*/prop:* for Web Components, textContent for text nodes, innerHTML for raw HTML.

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Explicit accessibility enhancement and validation for generated UI code. Only invoke when user explicitly requests accessibility review, a11y enhancement, or WCAG compliance check.

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Implement loading, error, success, and empty state components for Vue 3. Use when creating toast notifications, loading spinners, empty state pages, or status indicators. Mentions "loading state", "empty state", "toast component", "error UI", or "success message".

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Use when creating design systems or styling components with Tailwind CSS v4 and Class Variance Authority (CVA) - provides type-safe component variants with CSS variables for design tokens

majiayu000 Bundle

Generate Tailwind CSS configuration files with custom themes, plugins, and content paths. Triggers on "create tailwind config", "generate tailwind configuration", "tailwind setup", "tailwindcss config".

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Tailwind CSS accessibility patterns including WCAG 2.2 compliance, touch targets, focus management, and ARIA support

majiayu000 Bundle

Interactivity utilities Tailwind CSS v4.1. Cursor (cursor-*), Scroll (scroll-smooth, scroll-snap-*, overscroll-*), User select (select-*), Pointer events (pointer-events-*), Touch action, Resize, Caret color, Accent color.

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TanStack Start server/client code boundary patterns. Use when: debugging virtual module resolution errors (tanstack-start-injected-head-scripts, tanstack-start-manifest, #tanstack-router-entry), importing from @tanstack/react-start/server, using getCookie/getRequestHeaders/getRequestUrl, adding providers to router.tsx, or when Vite fails to resolve TanStack Start imports. Covers createServerFn patterns, dynamic imports, and proper placement of server-only code.

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Production-grade testing strategies for robust, maintainable systems. Covers unit/integration/E2E testing, contract testing, accessibility, mutation testing, and CI/CD patterns. Supports Python (pytest) and TypeScript (Jest/Vitest/Playwright).

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Apply when testing React components: rendering, user interactions, and accessibility-focused testing.

majiayu000 Bundle

Tailwind v4 + shadcn/ui specialist for Treido. Use for token/theme architecture, shadcn integration gotchas, and migration issues. Not for app logic or DB.

majiayu000 Bundle

This skill should be used when debugging visual CSS and layout issues in the tweakpane-table plugin, specifically for investigating column alignment problems between table headers and data rows. Use when columns don't align, widths appear incorrect, or visual inspection of rendered output is needed.

majiayu000 Bundle

Expert code reviewer for TypeScript + React 19 applications. Use when reviewing React code, identifying anti-patterns, evaluating state management, or assessing code maintainability. Triggers: code review requests, PR reviews, React architecture evaluation, identifying code smells, TypeScript type safety checks, useEffect abuse detection, state management review.

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Focus management, keyboard navigation, ARIA attributes, and screen reader considerations for TMNL

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VaultCPA project coding standards, conventions, and best practices for Next.js, React, TypeScript, Express, and Prisma. Use when reviewing code, writing new features, or setting up development patterns.

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Structure Vue 3 applications using Composition API, component organization, and TypeScript. Use when building scalable Vue applications with proper separation of concerns.

majiayu000 Bundle

Write Vitest unit tests and browser mode component tests for TypeScript projects. Use when asked to write tests, create test files, add test coverage, fix failing tests, test React components with browser mode, or work with Vitest testing patterns. Handles both unit testing with Given-When-Then pattern and React component testing with vitest-browser-react.

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Design UI components with Storybook stories, RTL tests, and accessibility compliance. Use when creating component specifications, performing UX reviews, aligning BDD scenarios with UI design, or working with shadcn/ui.

majiayu000 Bundle

Enforces atomic design methodology (atoms, molecules, organisms, templates, pages) for React Native/Expo projects using Gluestack UI. This skill should be used when creating new components, validating existing component organization, reviewing component placement decisions, or planning component architecture. Use this skill to ensure components are properly categorized, placed in correct directories, and follow composition patterns appropriate to their atomic level.

majiayu000 Bundle

Use when fixing or auditing ANY accessibility issue - VoiceOver, Dynamic Type, color contrast, touch targets, WCAG compliance, App Store accessibility review.

majiayu000 Bundle

Transform existing CSS (inline styles, utility classes in markup, scattered CSS) into semantic component patterns with dark mode support and tests

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Review existing CSS against established Tailwind + semantic component patterns, checking naming, dark mode, tests, and documentation

majiayu000 Bundle

Create interactive, custom data visualizations using d3.js — including charts, graphs, network diagrams, and geographic maps. Use when you need fine-grained control over visual elements, transitions, or interactions beyond what standard charting libraries offer, in any JavaScript environment (vanilla JS, React, Vue, Svelte, etc.).

majiayu000 Bundle

Generates design tokens from multi-dimensional configurations, creating hierarchical token names with proper naming conventions. Use when building design systems, creating token sets from component schemas, or generating token combinations from dimensions like variant, state, size, and properties.

majiayu000 Bundle

This skill should be used when the user asks to "convert to formily", "formily migration", "migrate forms to formily", "convert react forms to formily", "formily vs other form libraries", or "replace existing forms with formily".

majiayu000 Bundle

Frontend development guidelines for Quantum Skincare's Next.js 16 App Router application with React 19.2, Tailwind CSS v4, Clerk authentication, and TypeScript. Covers Server/Client Components, React 19.2 features (useEffectEvent, Activity component, cache signals, React Compiler auto-optimization), data fetching patterns, Tailwind styling, route groups, form validation, and performance optimization. Use when creating pages, components, API routes, styling, or working with frontend code.

majiayu000 Bundle

Use when building or modifying user-facing interfaces. Use when creating components, implementing layouts, managing state, or when the output needs to look and feel production-quality rather than AI-generated.