前端開發

Use when building reliable and scalable distributed systems.

Use when functional programming patterns in Scala including higher-order functions, immutability, pattern matching, algebraic data types, monads, for-comprehensions, and functional composition for building robust, type-safe applications.

Use when implementing navigation in React Native Web projects. Provides patterns for React Navigation, deep linking, and web-specific routing.

Use when building reusable component patterns with Tailwind CSS. Covers component extraction, @apply directive, and composable design patterns.

Guide spec-driven development workflow (Requirements → Design → Tasks → Implementation) with approval gates between phases. Use when user wants structured feature planning or says "use spec-driven" or "follow the spec process".

Use when writing low-level system software in C requiring file I/O, process management, signals, and system calls.

Use when creating and managing Zustand stores for React state management. Covers store creation, selectors, actions, and basic usage patterns.

Use when relay fragment composition, data masking, colocation, and container patterns for React applications.

Use when optimizing React Native Web performance. Provides patterns for code splitting, bundle optimization, memoization, and web-specific performance improvements.

Use when creating or modifying GitHub Actions workflow files. Provides guidance on workflow syntax, triggers, jobs, steps, and expressions for creating valid GitHub Actions workflows that can be tested locally with act.

Use when querying data with Ecto.Query DSL including where clauses, joins, aggregates, preloading, and query composition. Use for building flexible database queries in Elixir applications.

Use when lua tables as the universal data structure including arrays, dictionaries, objects, metatables, object-oriented patterns, data structures, and advanced table manipulation for building flexible, efficient Lua applications.

Use when nestJS dependency injection with providers, modules, and decorators. Use when building modular NestJS applications.

Use when handling async operations in Angular applications with observables, operators, and subjects.

Use when swift's modern concurrency model including async/await, actors, task groups, structured concurrency, and async sequences for building safe, performant concurrent code without data races or callback pyramids.

Use when designing modules, APIs, and system architecture requiring independent, non-overlapping components where changes in one don't affect others.

Use when building Angular 16+ applications requiring fine-grained reactive state management and zone-less change detection.

Use when Django Class-Based Views for building modular, reusable views. Use when creating CRUD operations and complex view logic.

Use when gleam's type system including algebraic data types, custom types, pattern matching, generic types, type inference, opaque types, exhaustive checking, and functional error handling for building type-safe Erlang VM applications.

Use when essential PHP security patterns including input validation, SQL injection prevention, XSS protection, CSRF tokens, password hashing, secure session management, and defense-in-depth strategies for building secure PHP applications.