This skill should be used when the user asks about "controllers", "actions", "params", "strong parameters", "filters", "before_action", "after_action", "callbacks", "respond_to", "render", "redirect_to", "flash messages", "sessions", "cookies", "request handling", "routing constraints", or needs guidance on building Rails controllers.
Create Laravel controller with Form Requests, Resources, and Service integration
Configure React frontend with django-allauth headless API integration, including authentication UI, auth state management, protected routes, and social authentication flows
Use this skill when adding new backend functionality (API endpoints + business logic).
Manages Convex backend: schema, queries, mutations, and actions. Use for: database operations, server logic, real-time subscriptions. DO NOT use for: frontend components (use developing-nextjs), API routes (use Next.js actions).
Unified router for development, infrastructure, and documentation tasks. Absorbs development-router + infrastructure-router + documentation-router.
JavaScript ES2024+ 개발 전문가 - Node.js 22 LTS, 현대 런타임 (Deno, Bun), 테스팅 (Vitest, Jest), 린팅 (ESLint 9, Biome), 백엔드 프레임워크 (Express, Fastify, Hono)를 다룬다. JavaScript API, 웹 애플리케이션, Node.js 프로젝트 개발 시 사용.
Package management, project setup, and development tooling standards. Use this when users need guidance on using pnpm for package management, setting up new projects with automated scripts, configuring environment variables with dotenv, or initializing development tooling for React and React Native projects.
Expert backend development including APIs, databases, server architecture, and performance optimization
PostHog integration for Next.js App Router applications
Scaffold new Next.js API routes with proper patterns. Use when user mentions "create endpoint", "new API route", "add route", or "API for".
Generates index.html as the application entry point. Includes meta tags, favicon links, and root div for Vue app mounting.
Expert knowledge of Express.js and Node.js for building production-ready web applications and APIs. Covers middleware patterns, routing, async/await error handling, security, performance optimization, proxy patterns, static file serving, and production deployment. Use when working with server.js, adding routes, implementing middleware, debugging Express issues, or optimizing API endpoints.
Create ECS entities for breathe-together-v2 with complete Koota traits, systems, React components, and Triplex annotations. Scaffolds index.tsx, traits.tsx, systems.tsx, and registers in providers.tsx. Handles visual entities (Three.js meshes) and state-only entities (breath, controller). Supports marker, stateful, and complex trait configurations. Generates JSDoc annotations with @min/@max/@step/@default directives for Triplex compatibility.
TypeScript 5.x development with type system, generics, utility types, and strict mode patterns. Use when writing TypeScript code or adding types to JavaScript projects.
Build local-first, offline-capable TypeScript apps with PowerSync. Use when implementing real-time sync between SQLite and backend databases (Postgres, MongoDB, MySQL, SQL Server). Covers schema definition, database setup, CRUD operations, React/Vue hooks, watch queries, and Kysely/Drizzle ORM integration.
Supabaseプロジェクトの初期設定を行うスキル。 Webアプリ生成サブエージェントから呼び出される。 プロジェクト作成、マイグレーション、RLS設定を行う。
Guide for Next.js 16 proxy patterns, replacing the deprecated middleware functionality. Covers the new proxy.ts file convention, async request APIs, and proper request interception. Use when implementing authentication, redirects, headers modification, or request processing at the network boundary level.
Complete workflow for building new modules in Next.js 15 (App Router) with Supabase backend. Use when creating CRUD features, data management modules, or any new feature module following the 5-layer architecture (Types → Services → Hooks → Components → Pages). Covers TypeScript types, Supabase services, React hooks, Shadcn/UI components, and permission-based routing.
Python SDKとFastMCPフレームワークを使用したMCPサーバー構築ガイド。PythonベースのMCPサーバーの作成、ツール・リソース・プロンプト実装、Pydanticモデル活用、STDIOおよびHTTPトランスポート設定を行う際に使用。
Manage the development server lifecycle. Use when starting, stopping, restarting the dev server, checking server status, viewing server logs, or before testing changes that require a running server.
Эксперт Ruby on Rails. Используй для Rails приложений, ActiveRecord, Hotwire и Rails best practices.
