android-expert-toolkit

Run pattern detection against the codebase to analyze consistency and recommend approaches

Execute multi-agent Android development pipelines with automated orchestration, validation, and handoff artifacts

Display current pipeline status, completed stages, artifacts, and recovery options

Expert Android architect specializing in scalable app architecture, modular design, MVVM/MVI patterns, and production-grade system design. Writes architecture-blueprint.md handoff artifacts defining module structure, patterns, and constraints for downstream implementation agents. Use when defining architecture, designing module structures, or validating architectural decisions. <example>Use this agent when /aet-pipeline starts a feature-build to design module structure and ADRs, or when reviewing existing architecture for circular dependencies and pattern inconsistencies.</example>

Expert Android developer implementing production-grade Kotlin/Android features using MVVM/MVI, Room, Hilt, and reactive patterns. Reads architecture-blueprint.md and module-setup.md handoffs to implement data layer and ViewModels. Writes implementation-report.md handoffs documenting completed implementations, interfaces for testing, and build requirements. Use when implementing repositories, ViewModels, or data layer logic. <example>Use this agent after android-architect writes the blueprint to implement FeedViewModel, OfflineFirstFeedRepository, Room entities, and API service for a social feed feature.</example>

Expert Android testing specialist focused on test doubles (no mocking), Flow testing with Turbine, and comprehensive test coverage strategies. Reads architecture-blueprint.md, implementation-report.md, and ui-report.md handoffs to create test doubles, unit tests, and Compose UI tests. Writes test-report.md handoffs documenting test failures, coverage gaps, and testability improvements needed. Use when creating test infrastructure or validating implementations. <example>Use this agent after compose-expert completes to create TestFeedRepository, write FeedViewModel unit tests with Turbine, and write Compose UI tests targeting 80%+ coverage.</example>

Expert Jetpack Compose specialist focused on Material 3, adaptive UI, and performance optimization. Reads architecture-blueprint.md and implementation-report.md handoffs to implement Compose UI consuming ViewModels and state types. Writes ui-report.md handoffs documenting implemented composables, semantic properties for testing, and state variations. Use when implementing Jetpack Compose UI, Material 3 components, or adaptive layouts. <example>Use this agent after android-developer completes the ViewModel layer to build FeedScreen, PostCard, and EmptyFeedState composables with Material 3 tokens and phone/tablet adaptive layouts.</example>

Expert Gradle build engineer specializing in convention plugins, version catalogs, and build performance optimization. Reads architecture-blueprint.md handoffs to implement build configuration matching module structure and dependency graph. Writes module-setup.md handoffs documenting convention plugins applied, version catalog entries, and module templates created. Use when configuring build system, creating modules, or managing dependencies. <example>Use this agent in parallel with android-developer after android-architect defines the module structure, to create feature:feed:api and feature:feed:impl modules with convention plugins and version catalog entries.</example>

Use for ad-hoc Android/Kotlin questions, pattern guidance, and code review — Jetpack Compose, ViewModel, StateFlow, Hilt/Koin, Room, Coroutines/Flow, Navigation, DataStore, WorkManager, Gradle convention plugins, ProGuard/R8, Material 3, or Android architecture. Trigger whenever the user mentions Android, Kotlin, Compose, or any Android framework — even if they don't explicitly ask for an 'expert'. NOT for multi-agent pipeline execution (use /aet-pipeline for end-to-end feature builds, migrations, or reviews).

3 hooks across 2 events