Builds native Android apps with the Android team's guides — Jetpack Compose UI, adaptive layouts, edge-to-edge, Compose styles, migrating XML views to Compose, Navigation 3 and predictive back; Android Gradle Plugin 9 upgrades, R8 keep rule analysis, profiling with Android Studio and Perfetto, and the Android CLI; Google Play policy compliance, Play Billing upgrades and the Engage SDK; Credential Manager restore and verified email; CameraX and Media3 Cast; App Functions and the ML Kit GenAI Prompt API; Wear OS, Android TV and display glasses. Use when writing, upgrading or auditing native Android (Kotlin) code for any of these topics, even if the user does not name the library.
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Guides for building native Android apps, most of them from the Android team (android/skills). Cross-platform topics live in their own skills and have Android references there: architecture in mobile-architecture, tests in mobile-test, debugging (Gradle, crashes, ANRs) in mobile-debug, code review in mobile-code-review, security in mobile-security and Firebase in mobile-firebase.
| Topic | Read |
|---|---|
| UI and navigation | references/ui.md |
| Build, performance and tooling | references/build-and-performance.md |
| Google Play | references/play.md |
| Identity | references/identity.md |
| Camera and media | references/media.md |
| On-device AI | references/on-device-ai.md |
| Other form factors | references/devices.md |
Each topic file lists its guides; open only the ones the task needs.
compileSdk/targetSdk versions in the build files and version catalog; several guides depend on minimum versions.No reviews yet. Tell others what you thought.
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Audits and fixes mobile accessibility across Flutter, native Android, native iOS, React Native and Kotlin Multiplatform, including shared Compose UI and native hosts. Covers TalkBack/VoiceOver labels, roles, state, reading order, touch targets, text scaling, contrast and focus. Use for a11y audits, screen-reader bugs or accessible UI implementation.
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Designs and reviews mobile architecture across Flutter, native Android, native iOS, React Native and Kotlin Multiplatform. Covers state ownership, data flow, modules, dependency boundaries, navigation, offline data and KMP shared source sets versus host apps. Use when structuring a feature, choosing state management, refactoring layers or deciding where a real class or screen belongs.
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Implements and reviews mobile identity and session flows across Flutter, Android, iOS, React Native and Kotlin Multiplatform. Use for sign-in, passkeys, account recovery, provider linking, reauthentication, logout and concurrent refresh. Security audits belong to mobile-security; account deletion belongs to mobile-privacy.
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Reviews mobile code for production bugs across Flutter, native Android, native iOS, React Native and Kotlin Multiplatform, including KMP source-set and host API contracts. Covers lifecycle, concurrency, UI state and native boundaries with file:line evidence. Use for a code review, PR, project audit, quality check or /reis-mobile:review.
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Diagnoses build and runtime failures across Flutter, native Android, native iOS, React Native and Kotlin Multiplatform. Covers pub/Dart, Gradle/AGP, Xcode/CocoaPods, Metro, KMP source sets and iOS frameworks, crashes and deep links. Use for failing builds, app launches, stack traces or /reis-mobile:debug.
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Detects the mobile stack of the current project (Flutter, Android, iOS, React Native, Kotlin Multiplatform), its languages and target platforms, using the reis-mobile detector. Use when you need to know which mobile stack a project uses before reviewing, debugging or changing it, or when the user asks "what stack is this project?".
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