LeeYoonSam

Build declarative UI with Jetpack Compose including composables, state management, recomposition, and Material3 components. Use when creating modern A...

Create MVVM architecture pattern with ViewModel, StateFlow, and Unidirectional Data Flow for Android. Use when implementing UI logic and state managem...

Conventional commit format specification with validation and automation for Android projects

Type-safe JSON serialization with Kotlin Serialization library. Use when you need compile-time safety, multiplatform support, and modern Kotlin featur...

Split large features into logical, atomic commits for better code review and git history

Git workflow optimized for SPEC-First Android development with requirement traceability

Render Adobe After Effects animations natively on Android with Lottie. Use for high-quality animations, loading indicators, and onboarding experiences...

Mocking framework for Kotlin with concise DSL, coroutine support, and powerful verification. Use for unit testing ViewModels, Repositories, and Use Ca...

Implement Clean Architecture with three layers (presentation, domain, data) for Android apps. Use when structuring a new feature or refactoring code f...

Extensible logging library with customizable Tree implementations and automatic tagging. Use for structured logging in Debug/Release builds with diffe...

Small testing library for Kotlin Flows with awaitItem(), awaitComplete(), and awaitError(). Use when testing Flow emissions in ViewModels and Reposito...

JSON parsing with Moshi library, including custom adapters and Retrofit integration. Use when you need type-safe, efficient JSON serialization with Ko...

Configure Retrofit for REST API calls with OkHttp, Gson/Moshi, Coroutines, and error handling. Use when implementing network data sources and API inte...

Create atomic commits with conventional commit format and SPEC traceability for Android projects

Initialize new Android project with modern build configuration using Gradle Kotlin DSL, version catalogs, and recommended project structure. Use when ...

Implement DataStore for preferences and simple key-value storage using Coroutines. Use when replacing SharedPreferences or storing app settings.

Create local database with Room including entities, DAOs, and database setup with migrations. Use when implementing local data persistence with type-s...

Configure dependency injection with Hilt including modules, scopes, and ViewModelFactory. Use when setting up or adding DI to Android app for compile-...

Implement repository pattern with single source of truth for data access. Use when abstracting data sources (network, database, cache) in the data lay...

Build UI with XML layouts, ViewBinding, and View components for legacy or gradual migration projects. Use when working with existing XML-based apps.

Configure dependency injection with Koin using Kotlin DSL for lightweight runtime DI. Use when preferring simpler setup over compile-time validation.

Implement Navigation 3 for Jetpack Compose with type-safe routes, nested navigation, and deep linking. Use when handling screen navigation in Compose ...

Build efficient lists with LazyColumn (Compose) or RecyclerView (Views) including item click handling. Use when displaying scrollable lists of data.

Create forms with validation in Jetpack Compose using state and validation logic. Use when building input forms with real-time validation.

Create unit tests for ViewModels and business logic with JUnit, MockK, and Coroutine testing. Use when testing logic without Android dependencies.

Implement Material Design 3 components for consistent UI across Android apps. Use when adding buttons, cards, dialogs, and other standard UI elements.

Create Material3 theming for Jetpack Compose with custom colors, typography, shapes, and dynamic theming. Use when implementing design system or brand...

Implement pagination with Paging 3 library for efficient large dataset loading. Use when displaying lists with network or database pagination.

Write UI tests for Jetpack Compose using ComposeTestRule and semantics. Use when testing Compose screens, user interactions, and state changes.

Schedule background work with WorkManager for deferrable tasks. Use when implementing periodic sync, uploads, or tasks that must run even if app exits...

Implement Kotlin Coroutines for asynchronous operations with proper scope and dispatcher management. Use when handling network calls, database operati...

Handle runtime permissions for Android 13+ with permission requests and rationale. Use when implementing features requiring dangerous permissions.

Manage UI state with StateFlow and SharedFlow in ViewModels. Use when exposing observable state from ViewModel to UI with Coroutines.

Configure Gradle build with Kotlin DSL including build types, flavors, and dependencies. Use when setting up project build configuration.

Load and display images with Coil (Compose) or Glide including caching and transformations. Use when displaying remote or local images efficiently.

Handle one-time UI events like navigation or toasts using Channels or SharedFlow. Use when triggering actions that shouldn't repeat on recomposition.