> browse/registry

> android-legacy-security

Harden Intent handling, WebView configuration, and FileProvider access in Android apps. Use when securing Intent extras, configuring WebViews, or exposing files via FileProvider. (triggers: **/*Activity.kt, **/*WebView*.kt, AndroidManifest.xml, Intent, WebView, FileProvider, javaScriptEnabled)

> android-concurrency

Standards for Coroutines, Flow, and Threading. Use when writing suspend functions, choosing coroutine scopes, switching between StateFlow and SharedFlow, injecting Dispatchers for testability, or debugging threading issues in Android. (triggers: **/*ViewModel.kt, **/*UseCase.kt, **/*Repository.kt, suspend, viewModelScope, lifecycleScope, Flow, coroutine, Dispatcher, DispatcherProvider, GlobalScope)

> android-legacy-navigation

Implement Jetpack Navigation Component with XML graphs and SafeArgs for type-safe fragment navigation. Use when working with XML-based Navigation Component or SafeArgs in Android. (triggers: navigation/*.xml, findNavController, NavDirections, navArgs)

> android-deployment

Configure App Distribution — Signing, Obfuscation, and App Bundles for Android. Use when configuring Release build types, setting up signing configs, enabling R8/ProGuard minification, adding ProGuard keep rules, or preparing an .aab for Play Store submission. (triggers: build.gradle.kts, proguard-rules.pro, signingConfigs, proguard, minifyEnabled, isMinifyEnabled, isShrinkResources, .aab, releaseKeystore)

> android-persistence

Implement Room database schemas and DataStore preferences with proper async patterns in Android. Use when defining Room entities, DAOs, migrations, or replacing SharedPreferences with DataStore. (triggers: **/*Dao.kt, **/*Database.kt, **/*Entity.kt, @Dao, @Entity, RoomDatabase)

> android-background-work

Implement WorkManager and Background Processing correctly on Android. Use when creating Worker classes, scheduling tasks with WorkManager, choosing between WorkManager and Foreground Services, or setting up Hilt in workers. (triggers: **/*Worker.kt, CoroutineWorker, WorkManager, doWork, PeriodicWorkRequest, OneTimeWorkRequest, @HiltWorker)

> android-compose

Build high-performance declarative UI with Jetpack Compose state hoisting and recomposition optimization. Use when writing @Composable functions, Screen files, LazyColumn, state hoisting, LaunchedEffect, or diagnosing excessive recomposition. (triggers: **/*Screen.kt, **/*Composable*.kt, **/*Content.kt, @Composable, Modifier, Column, Row, LazyColumn, setContent, recompose, remember, derivedStateOf, LaunchedEffect)

> android-accessibility

Expert checklist and prompts for auditing and fixing Android accessibility issues, especially in Jetpack Compose.

> android-resources

Manage Strings, Drawables, and Localization resources on Android. Use when managing Android resources, drawables, or adding localization support. (triggers: strings.xml, **/*Screen.kt, stringResource, plurals, R.string)

> android-performance

Optimize Android app startup, UI rendering, and frame stability with Baseline Profiles and lazy initialization. Use when reducing startup time, diagnosing jank, or improving UI rendering performance. (triggers: **/*Benchmark.kt, **/*Initializer.kt, BaselineProfile, JankStats, recomposition)

> expo-deployment

Deploying Expo apps to iOS App Store, Android Play Store, web hosting, and API routes

> android-retrofit

Expert guidance on setting up and using Retrofit for type-safe HTTP networking in Android. Covers service definitions, coroutines, OkHttp configuration, and Hilt integration.

> android-coroutines

Authoritative rules and patterns for production-quality Kotlin Coroutines onto Android. Covers structured concurrency, lifecycle integration, and reactive streams.

> compose-performance-audit

Audit and improve Jetpack Compose runtime performance from code review and architecture. Use when asked to diagnose slow rendering, janky scrolling, excessive recompositions, or performance issues in Compose UI.

> compose-navigation

Implement navigation in Jetpack Compose using Navigation Compose. Use when asked to set up navigation, pass arguments between screens, handle deep links, or structure multi-screen apps.

> xml-to-compose-migration

Convert Android XML layouts to Jetpack Compose. Use when asked to migrate Views to Compose, convert XML to Composables, or modernize UI from View system to Compose.

> kotlin-concurrency-expert

Kotlin Coroutines review and remediation for Android. Use when asked to review concurrency usage, fix coroutine-related bugs, improve thread safety, or resolve lifecycle issues in Kotlin/Android code.

> compose-ui

Best practices for building UI with Jetpack Compose, focusing on state hoisting, detailed performance optimizations, and theming. Use this when writing or refactoring Composable functions.

> android-architecture

Expert guidance on setting up and maintaining a modern Android application architecture using Clean Architecture and Hilt. Use this when asked about project structure, module setup, or dependency injection.

> android-gradle-logic

Expert guidance on setting up scalable Gradle build logic using Convention Plugins and Version Catalogs.