flutter-testing
Write unit, widget, and integration tests with robots, widget keys, and Patrol in Flutter. Use when writing Flutter unit tests, widget tests, or integration tests with Patrol. (triggers: **/test/**.dart, **/integration_test/**.dart, **/robots/**.dart, lib/core/keys/**.dart, test, patrol, robot, WidgetKeys, patrolTest, blocTest, mocktail)
flutter-widgets
Build maintainable Flutter UI components with composition and theming. Use when building, refactoring, or reviewing Flutter widget implementations for maintainability. (triggers: **_page.dart, **_screen.dart, **/widgets/**, StatelessWidget, const, Theme, ListView)
golang-api-server
Build HTTP services, REST APIs, and middleware in Go. Use when building Go HTTP servers, REST APIs, or custom middleware. (triggers: cmd/server/*.go, internal/adapter/handler/**, http server, rest api, gin, echo, middleware)
golang-architecture
Structure Go projects with Clean Architecture and standard layout conventions. Use when structuring Go projects or applying Clean Architecture in Go. (triggers: go.mod, internal/**, architecture, structure, folder layout, clean arch, dependency injection)
golang-concurrency
Write safe concurrent Go code with goroutines, channels, and context. Use when implementing concurrency with goroutines, channels, or context in Go. (triggers: goroutine, go keyword, channel, mutex, waitgroup, context, errgroup, race condition)
golang-configuration
Load and validate application configuration from environment variables and config files. Use when managing Go application config with environment variables or viper. (triggers: configs/**, cmd/**, configuration, env var, viper, koanf)
golang-database
Implement database access with connection pooling and repository patterns in Go. Use when building database access, connection pools, or repositories in Go. (triggers: internal/adapter/repository/**, database, sql, postgres, gorm, sqlc, pgx)
golang-error-handling
Standards for error wrapping, checking, and definition in Golang. Use when wrapping errors, defining sentinel errors, or handling errors idiomatically in Go. (triggers: fmt.Errorf, errors.Is, errors.As, error wrapping, sentinel error, error handling)
golang-language
Core idioms, style guides, and best practices for writing idiomatic Go code. Use when writing Go code following official style guides and idiomatic patterns. (triggers: go.mod, golang, go code, idiomatic, gofmt, goimports, iota, golang style)
golang-logging
Standards for structured logging and observability in Golang. Use when adding structured logging or tracing to Go services. (triggers: go.mod, pkg/logger/**, logging, slog, structured logging, zap)
golang-security
Secure Go backend services against common vulnerabilities. Use when implementing input validation, crypto, or SQL injection prevention in Go. (triggers: crypto/rand, argon2, sanitize, jwt, bcrypt, validation, input validation, sql injection)
golang-testing
Write unit tests with table-driven patterns and interface mocking in Go. Use when writing Go unit tests, table-driven tests, or using mock interfaces. (triggers: **/*_test.go, testing, unit tests, go test, mocking, testify)
golang-tooling
Go developer toolchain — gopls LSP diagnostics, linting, formatting, and vet. Use when setting up Go tooling, running linters, or integrating gopls with Claude Code. (triggers: gopls, golangci-lint, golangci.yml, go vet, goimports, staticcheck, go tooling, go lint)
ios-app-lifecycle
Manage AppDelegate, SceneDelegate, deep linking, and background tasks. Use when configuring iOS app lifecycle, deep linking, or background task scheduling. (triggers: AppDelegate.swift, SceneDelegate.swift, didFinishLaunchingWithOptions, willConnectTo, backgroundTask, Shortcut, UserActivity)
ios-architecture
Apply MVVM, Coordinators, and Clean Architecture (VIP/VIPER) in iOS apps. Use when applying MVVM, Coordinators, or VIP/VIPER architecture in iOS apps. (triggers: **/*ViewModel.swift, **/*Coordinator.swift, **/*ViewController.swift, MVVM, Coordinator, ViewState, Output, Input)
ios-dependency-injection
Configure protocol-based DI with property wrappers and Factory/Swinject. Use when setting up dependency injection or factory patterns in iOS. (triggers: **/*.swift, @Injected, Resolver, Container, Swinject, register, resolve)
ios-deployment
Automate provisioning, signing, and deployment with Fastlane. Use when provisioning iOS apps, managing code signing, or automating deployments with Fastlane. (triggers: Fastfile, Appfile, Matchfile, ios_bundle_id, provisioning_profile, testflight)
ios-design-system
Enforce design token usage in SwiftUI apps using iOS Human Interface Guidelines. Use when implementing design tokens, colors, or typography in SwiftUI. (triggers: **/*View.swift, **/Theme/**, **/DesignSystem/**, Color, Font, SwiftUI, ViewModifier, Theme)
ios-localization
Implement String Catalogs, L10n workflows, and asset management for iOS. Use when adding multi-language support using iOS String Catalogs or L10n workflows. (triggers: **/*.stringcatalog, **/*.xcassets, **/*.strings, LocalizedStringResource, NSLocalizedString, String(localized:))
ios-navigation
SwiftUI navigation and deep linking using NavigationStack and Universal Links. Use when implementing NavigationStack or Universal Links deep linking in iOS. (triggers: **/*View.swift, **/*App.swift, NavigationStack, NavigationLink, onOpenURL, universalLink, NSUserActivity)
ios-networking
Build API clients with URLSession, Alamofire, and Codable. Use when implementing URLSession networking, Alamofire, or API clients in iOS. (triggers: **/*Service.swift, **/*API.swift, **/*Client.swift, URLSession, Alamofire, Moya, URLRequest, URLComponents, Codable)
ios-notifications
Push notifications for iOS using UserNotifications framework and APNS. Use when integrating APNS push notifications in iOS applications. (triggers: **/*Notification*.swift, **/*AppDelegate.swift, UNUserNotificationCenter, APNS, UNNotificationRequest, deviceToken)
ios-performance
Profile and optimize iOS apps with Instruments, memory management, and rendering techniques. Use when profiling iOS apps with Instruments or optimizing memory and rendering. (triggers: **/*.swift, Instruments, Allocations, Leaks, dequeueReusableCell)
ios-persistence
Implement local persistence with SwiftData, Core Data, and Keychain. Use when setting up SwiftData models, Core Data stacks, or local persistence in iOS. (triggers: **/*.xcdatamodeld, **/*Model.swift, PersistentContainer, FetchRequest, ManagedObject, Query, ModelContainer, Repository)
ios-security
Secure iOS apps with Keychain, biometrics, and data protection. Use when implementing Keychain storage, Face ID/Touch ID, or data protection in iOS. (triggers: **/*.swift, SecItemAdd, kSecClassGenericPassword, LAContext, LocalAuthentication)
ios-state-management
Manage reactive state with Combine, Observation framework, and UDF patterns. Use when implementing state management with Combine, @Observable, or reactive patterns in iOS. (triggers: **/*.swift, Observable, @Published, PassthroughSubject, @Observable, @Namespace)
ios-swiftui
Build declarative UI and manage data flow with SwiftUI in iOS. Use when building declarative SwiftUI views or managing data flow with property wrappers. (triggers: **/*View.swift, View, State, Binding, EnvironmentObject)
ios-ui-navigation
Implement UIKit navigation, Auto Layout, and Apple Human Interface Guidelines in iOS. Use when implementing UIKit navigation, Auto Layout constraints, or HIG compliance. (triggers: **/*View.swift, **/*.xib, **/*.storyboard, NSLayoutConstraint, UIStackView, SnapKit, layoutSubviews)
java-best-practices
Apply core Effective Java patterns for robust, maintainable code. Use when applying SOLID principles, choosing between inheritance and composition, refactoring Java code smells, or reviewing class design. (triggers: **/*.java, refactor, SOLID, builder, factory, composition, immutable, Optional, checked exception, clean code)
java-concurrency
Implement modern concurrency with Virtual Threads and Structured Concurrency in Java. Use when implementing Java Virtual Threads (Java 21), Structured Concurrency with StructuredTaskScope, CompletableFuture pipelines, or debugging race conditions. (triggers: **/*.java, Thread, Executor, synchronized, lock, CompletableFuture, StructuredTaskScope, VirtualThread, AtomicInteger, async, race condition)
java-language
Modern Java 21+ standards including Records, Pattern Matching, and Virtual Threads. Use when working with Java records, sealed classes, switch expressions, text blocks, Optional, or upgrading from older Java versions. (triggers: **/*.java, pom.xml, build.gradle, record, sealed, switch, var, Optional, stream, VirtualThread, instanceof, text block)
java-testing
Testing standards using JUnit 5, AssertJ, and Mockito for Java. Use when writing or reviewing Java unit tests, setting up parameterized tests, writing integration tests with Testcontainers, or working with Mockito mocks. (triggers: **/*Test.java, **/*IT.java, @Test, @ParameterizedTest, Mockito, AssertJ, assertThat, JUnit, Testcontainers)
java-tooling
Configure Maven, Gradle, and static analysis for Java projects. Use when setting up Java build tooling, configuring Spotless or Checkstyle, managing JDK versions with sdkman, writing Dockerfiles for Java services, or adding SpotBugs/SonarLint. (triggers: pom.xml, build.gradle, build.gradle.kts, mvnw, gradlew, .sdkmanrc, spotbugs, checkstyle, spotless, eclipse-temurin)
javascript-best-practices
Idiomatic JavaScript patterns and conventions for maintainable code. Use when writing or refactoring JavaScript following idiomatic patterns and conventions. (triggers: **/*.js, **/*.mjs, module, import, export, error, validation)
javascript-language
Modern JavaScript (ES2022+) patterns for clean, maintainable code. Use when working with modern JavaScript features like optional chaining, nullish coalescing, or ESM. (triggers: **/*.js, **/*.mjs, **/*.cjs, const, let, arrow, async, await, promise, destructuring, spread, class)
javascript-tooling
Configure development tools, linting, and testing for JavaScript projects. Use when configuring ESLint, Prettier, or test runners for JavaScript projects. (triggers: .eslintrc.*, jest.config.*, package.json, eslint, prettier, jest, test, lint, build)
kotlin-best-practices
Core patterns for robust Kotlin code including scope functions and backing properties. Use when writing idiomatic Kotlin, choosing between scope functions (let/apply/run/also/with), encapsulating mutable state with backing properties, or exposing read-only collection interfaces. (triggers: **/*.kt, apply, let, run, also, with, runCatching, backing property, MutableList, internal, private set)
laravel-tooling
Manage Laravel ecosystem with custom Artisan commands, Vite asset bundling, Pint code styling, and Horizon queue monitoring. Use when creating Artisan commands, migrating from Mix to Vite, or configuring Pint code standards. (triggers: package.json, composer.json, vite.config.js, artisan, vite, horizon, pint, blade)
kotlin-coroutines
Write safe, structured concurrent code with Kotlin Coroutines. Use when writing suspend functions, choosing coroutine scopes, handling cancellation in loops, selecting between StateFlow and SharedFlow, debugging coroutine leaks, or asked why GlobalScope is dangerous. (triggers: **/*.kt, suspend, CoroutineScope, launch, async, Flow, StateFlow, SharedFlow, viewModelScope, GlobalScope, Dispatchers, isActive, yield, runBlocking)
kotlin-language
Write idiomatic Kotlin 1.9+ with null safety, sealed classes, and expression syntax. Use when working with Kotlin null safety, data classes, sealed interfaces, extension functions, or migrating Java code to Kotlin. (triggers: **/*.kt, **/*.kts, val, var, ?., ?:, !!, data class, sealed, when, extension, lazy, lateinit, object)
kotlin-tooling
Configure Gradle Kotlin DSL, Version Catalogs, and MockK for Kotlin projects. Use when configuring build.gradle.kts, setting up libs.versions.toml, adding MockK for tests, or choosing between Kotlin-compatible test assertion libraries. (triggers: build.gradle.kts, libs.versions.toml, detekt.yml, mockk, kts, version catalog, kotest)
laravel-api
Build REST endpoints with API Resources, Sanctum authentication, and versioned route groups in Laravel. Use when creating JsonResource classes, adding token-based auth, or defining rate-limited API routes. (triggers: routes/api.php, app/Http/Resources/**/*.php, resource, collection, sanctum, passport, cors)
laravel-architecture
Enforce core architectural standards for scalable Laravel applications. Use when structuring controllers, service layers, action classes, Form Requests, or Service Container bindings in Laravel projects. (triggers: app/Http/Controllers/**/*.php, routes/*.php, controller, service, action, request, container)
laravel-background-processing
Build scalable asynchronous workflows using Queues, Jobs, and Events in Laravel. Use when implementing queued jobs, event-driven workflows, or async processing in Laravel. (triggers: app/Jobs/**/*.php, app/Events/**/*.php, app/Listeners/**/*.php, ShouldQueue, dispatch, batch, chain, listener)
laravel-clean-architecture
Implement Domain-Driven Design with typed DTOs, repository interfaces, and single-responsibility Action classes in Laravel. Use when creating domain folders, binding repository contracts in providers, or passing DTOs between layers. (triggers: app/Domains/**/*.php, app/Providers/*.php, domain, dto, repository, contract, adapter)
laravel-database-expert
Optimize Laravel queries with subqueries, joinSub, Redis cache-aside patterns, and read/write connection splitting. Use when writing complex joins, implementing Cache::remember with tags, or configuring database read replicas. (triggers: config/database.php, database/migrations/*.php, join, aggregate, subquery, selectRaw, Cache)
laravel-eloquent
Write performant Eloquent queries with eager loading, reusable scopes, and strict lazy-loading prevention in Laravel. Use when defining model relationships, creating query scopes, or processing large datasets with chunk/cursor. (triggers: app/Models/**/*.php, scope, with, eager, chunk, model)
laravel-security
Harden Laravel apps with Policies for model authorization, Gate-based RBAC, validated mass assignment, and CSRF protection. Use when creating authorization policies, securing env config access, or preventing mass assignment vulnerabilities. (triggers: app/Policies/**/*.php, config/*.php, policy, gate, authorize, env, config)
laravel-sessions-middleware
Configure Redis session drivers, register security-header middleware, and prevent session fixation in Laravel. Use when switching session drivers, adding HSTS/CSP headers via middleware, or regenerating sessions after login. (triggers: app/Http/Middleware/**/*.php, config/session.php, session, driver, handle, headers, csrf)
laravel-testing
Write Pest feature tests with RefreshDatabase, mock external services, and create test data with Eloquent Factories in Laravel. Use when adding HTTP tests, configuring SQLite in-memory test database, or mocking payment services. (triggers: tests/**/*.php, phpunit.xml, feature, unit, mock, factory, sqlite)
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