Guide for building robust API integration layers in React/TypeScript applications. Use when implementing HTTP clients (axios/fetch), request/response interceptors, authentication token handling, error handling strategies, retry logic, request cancellation, or organizing API services. Triggers on questions about API client setup, custom hooks for data fetching, React Query/SWR integration, or service layer patterns.
個性的で本格的なフロントエンドのユーザーインターフェースを高いデザイン品質で作成。ユーザーがWebコンポーネント、ページ、アプリケーションの構築を依頼した際に使用。汎用的なAI臭さを避けた、創造的で洗練されたコードを生成。
Audio, video, and voice components for Composable Svelte. Use when implementing audio players, video embeds, or voice input. Covers AudioPlayer (Web Audio API), VideoEmbed (YouTube/Vimeo/Twitch), and VoiceInput (MediaRecorder) from @composable-svelte/media package.
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独創的で本格的なフロントエンドインターフェースを高いデザイン品質で作成します。ユーザーがWebコンポーネント、ページ、アーティファクト、ポスター、またはアプリケーション（ウェブサイト、ランディングページ、ダッシュボード、Reactコンポーネント、HTML/CSSレイアウト、またはWeb UIのスタイリング/美化など）の構築を求めるときにこのスキルを使用します。一般的なAI美学を避け、創造的で洗練されたコードとUIデザインを生成します。
Refactor Express.js/Node.js code to improve maintainability, readability, and adherence to best practices. Transforms callback hell, fat route handlers, and outdated patterns into clean, modern JavaScript/TypeScript code. Applies async/await, controller-service-repository architecture, proper middleware patterns, and ESM modules. Identifies and fixes anti-patterns including blocking event loop, improper error handling, forEach with async callbacks, and memory leaks.
Start or stop the user-management FastAPI app. Use when you need to tun or kill the dev server.
Vercel React/Next.jsパフォーマンス最適化 - 45ルール8カテゴリ、ウォーターフォール排除からバンドル最適化まで
Express + TypeScript starter with Biome, Docker, and Vitest.
Generate Remix route files with loaders, actions, and meta. Triggers on "create remix route", "generate remix page", "remix loader", "remix action".
Express.js setup, server initialization, middleware configuration, request/response handling, routing basics, TypeScript integration, middleware pipeline. Use when setting up new Express servers, configuring middleware, creating routes, or understanding Express architecture and request/response lifecycle.
TypeScript monorepo patterns including contract-port architecture, dependency injection, hermetic primitive ports, and composition root. Use when creating packages, designing contracts/interfaces, implementing ports, wrapping platform primitives (Date, console, process), or testing with inline mocks.
Troubleshoot dev server reachability and HMR for WebF apps on real devices (Vite/Webpack): LAN IP vs localhost, 0.0.0.0/--host binding, firewall/ports, and websocket/HMR (ws://) issues. Use when the user mentions HMR, websocket, ws://, --host, 0.0.0.0, LAN IP, firewall, or a device that can load HTML but not assets/HMR.
Frontend development for Xbox 360-inspired portfolio using Next.js 15, React, CSS Modules, and audio integration. Use when building UI components, styling, animations, client-side logic, or when the user mentions "component", "UI", "frontend", "styling", "CSS", "animation", "responsive", or "audio feedback".
Debug Django Channels WebSocket issues including connection failures, authentication, message handling, Redis pub/sub, and real-time streaming. Use when troubleshooting WebSocket not connecting, messages not received, connection dropped, or streaming not working.
Deno monorepo with Hono, tRPC, Drizzle, and Supabase.
Park Golf Platform NestJS 코딩 컨벤션. 모듈 구조, 서비스/컨트롤러 작성 규칙, DTO/Entity 패턴, 의존성 주입 방법 안내. "NestJS", "컨벤션", "코딩 스타일", "모듈", "서비스" 관련 질문 시 사용합니다.
Create custom 404 and 500 error pages with brand styling. Use at project end before release. Triggers on "404", "error pages", "not found", "500 error".
Add a web frontend (React/Vite SPA) to an existing Go backend with a two-process dev loop (Vite dev server + proxy to Go) and a production single-binary build (go generate builds/copies frontend assets + go:embed packages them). Use when you need to serve a SPA from Go on / with /api and optional /ws, wire Makefile targets, and make CI (GitHub Actions) reliably build/embed the UI.
Bootstraps complete backend with Apso, including API setup, database configuration, and testing. Triggers when user needs to create backend, setup API, or initialize server.
Debug Flask applications systematically with this comprehensive troubleshooting skill. Covers routing errors (404/405), Jinja2 template issues, application context problems, SQLAlchemy session management, blueprint registration failures, and circular import resolution. Provides structured four-phase debugging methodology with Flask-specific tools including Werkzeug debugger, Flask-DebugToolbar, and Flask shell for interactive investigation.
Plan to implement a page in sveltekit by listing out the components need to create or to use
