Design modular libraries with clear package boundaries, feature-first organization, and clean API surfaces. Use when structuring monorepos, defining module boundaries, or designing library APIs.
Use when implementing new features or enhancements requiring multi-layer changes (Domain, Application, Persistence, API, Frontend).
エラーバジェットとアラートを用いたサービスレベルインジケーター（SLI）とサービスレベル目標（SLO）を定義・実装します。信頼性ターゲットの確立、SREプラクティスの実装、サービスパフォーマンスの測定時に使用します。
WebSocket real-time updates, SSE broadcasting, event buffering
Modern Ruby idioms, design patterns, metaprogramming techniques, and best practices. Use when writing Ruby code or refactoring for clarity.
Validate JSON data against JSON Schema specifications. Use for API validation, config file validation, or data quality checks.
Generate OpenAPI/REST endpoints from tRPC routers. Use when you have a tRPC API but need to expose REST endpoints for third-party integrations, mobile apps, or public API documentation. Provides automatic Swagger UI and OpenAPI spec generation. Choose this when you want type-safe internal APIs (tRPC) with REST fallback for external consumers.
Fix Supabase RLS issues - handles missing user context, system processes, background jobs, and provides standardized RLS templates
Type-safe API layer for TypeScript full-stack applications. Use when building APIs that need end-to-end type safety between client and server WITHOUT code generation. Ideal for Next.js, React, and Express apps where both frontend and backend are TypeScript. Choose tRPC over REST/GraphQL when you control both ends and want zero runtime overhead for type checking.
Generate realistic mock API responses with fake data. Use for testing, prototyping, or creating sample data for frontend development.
Use when designing or modifying REST API endpoints, controller structure, route patterns, request/response DTOs. Triggers on keywords like "API endpoint", "REST", "controller", "route", "HTTP", "request body", "response".
MANDATORY pre-check before ANY response - ensures you use applicable skills and follow best practices. Use this skill FIRST before responding to any Elixir/Phoenix request.
Use when creating API services for backend communication with proper patterns for caching, error handling, and type safety.
Create custom API endpoints and whitelisted methods for Frappe applications. Use when building REST APIs or custom endpoints.
Pydantic v2 model patterns for req/res validation, MongoDB conversion, validation rules. Travel Panel conventions.
Type-safe API client generator from OpenAPI schemas with full ecosystem support. TRIGGER WHEN: - Setting up API client with OpenAPI schema (@devup-api/fetch) - Making typed API requests (GET, POST, PUT, PATCH, DELETE) - Using React Query hooks (@devup-api/react-query) - Using Zod validation schemas (@devup-api/zod) - Building forms with react-hook-form (@devup-api/hookform) - Creating CRUD interfaces (@devup-api/ui) - Configuring Vite/Next.js/Webpack/Rsbuild plugins - Implementing authentication middleware - Using DevupObject for type references
Fetch OpenRouter model details and provide guidance for adding models to acai-ts provider configuration.
Comprehensive Supabase development expert covering Edge Functions, database schema management, migrations, PostgreSQL functions, and RLS policies. Use for any Supabase development including TypeScript/Deno Edge Functions, declarative schema management, SQL formatting, migration creation, database function authoring with SECURITY INVOKER, and RLS policy implementation with auth.uid() and auth.jwt().
REST API design patterns, OpenAPI specifications, versioning strategies, authentication, error handling, and security best practices. Use when designing APIs, creating endpoints, documenting APIs, or implementing backend services that expose HTTP APIs.
Senior Next.js 15+/16 Engineer skill for App Router. Use when scaffolding production apps, enforcing RSC patterns, auditing codebases, or optimizing performance.
Skill for designing and implementing backend APIs. Includes Zero Script QA methodology for validating APIs without test scripts. Triggers: API design, REST API, backend, endpoint, API 설계, API設計, API设计
FastAPI framework workflow guidelines. Activate when working with FastAPI projects, uvicorn, or FastAPI-specific patterns.
TypeScript-first schema validation library. Use for ALL input validation in TypeScript projects — API inputs, form data, environment variables, config files. Essential companion for tRPC (required), React Hook Form, and any data boundary. Choose Zod when you need runtime validation with automatic TypeScript type inference.
開発者を喜ばせる直感的でスケーラブルで保守可能なAPIを構築するために、RESTとGraphQL APIの設計原則をマスターします。新しいAPIの設計、API仕様のレビュー、またはAPI設計標準の確立時に使用してください。
