compose-kotlin-agent-skills

Enterprise Android/Kotlin skill for 2026 — Kotlin 2.x K2 compiler, AGP 9, Navigation 3, edge-to-edge Compose, strict MVI with atomic _state.update, banned AI antipatterns. Jetpack Compose, Hilt, Room, KMP, CameraX/ML Kit, performance, testing. Use when writing Kotlin for Android, building Compose UI, MVVM/MVI architecture, debugging recomposition, Room DAOs, Navigation 3, coroutines, or asking "structure Android app", "ViewModel UiState", "collectAsStateWithLifecycle", "edge to edge", "AGP 9", "K2 compiler", "Play Store release".

Jetpack Compose UI engineering for 2026 — edge-to-edge, Material 3, recomposition stability, Modifier ordering, LazyColumn performance, and animations. Use when building composables, fixing jank, theming, adaptive layouts, Canvas drawing, auditing screens, or asking "why does my screen recompose", "Modifier order", "edge to edge Compose", "audit this composable", "review this screen".

Enforces Clean Architecture, MVVM/MVI, and unidirectional data flow for Android apps. Covers UiState, UiEvent, UiEffect, UseCase boundaries, module structure, and atomic ViewModel state via _state.update. Use when structuring features, refactoring ViewModels, splitting modules, or asking "MVVM vs MVI", "where does state live", "UseCase when".

Android testing patterns — ViewModel unit tests with Turbine, Compose UI semantics, Hilt TestInstallIn fakes, coroutine test dispatchers, and release quality gates. Use when writing tests, setting up CI, mocking repositories, or asking "how to test ViewModel", "Compose UI test", "Turbine StateFlow".