android-skills

Designs and enforces a clean multi-module Android architecture with strict layer isolation. Use when user asks "where should this code go", "create a new module", "fix a circular dependency", "what layer does this belong in", or "set up module architecture".

Architects Android runtime permissions across multi-module projects following Clean Architecture. Use when user asks to "request a permission", "handle runtime permission", "camera permission", "location permission", or "structure permissions in Clean Architecture".

Writes unit tests for Android Kotlin code covering ViewModels, Use Cases, and Repositories using MockK and Kotlin Coroutines Test. Use when user asks to "write a unit test", "add tests for this class", "how do I test a ViewModel", or "apply GIVEN/WHEN/THEN".

Writes idiomatic, maintainable, and accessible Jetpack Compose UI. Use when user asks to "create a composable", "write a Compose screen", "build a UI component", "review Compose code", or "refactor XML to Compose".

Implements type-safe navigation using Jetpack Navigation 3 (Nav3) with Compose. Use when user asks to "add a new screen", "wire navigation", "pass results between screens", "set up Nav3", or "navigate to a destination". Covers NavKey routes, NavDisplay, navigator abstractions, and ResultStore.

Audits and fixes Jetpack Compose runtime performance issues. Use when user says "Compose is slow", "too many recompositions", "janky scrolling", "frame drops", or asks to "optimize Compose UI". Performs code-first review and guides profiling when needed.

Creates and maintains GitHub Actions CI/CD workflows for Android projects. Use when user asks to "set up CI", "create a GitHub Action", "add a CI pipeline", "configure GitHub Actions for Android", or "optimize build times".

Configures Gradle builds for Android using Version Catalogs and Kotlin DSL. Use when user asks to "add a dependency", "configure Gradle", "update a library version", "set up a version catalog", or "resolve a build conflict".

Creates and maintains Gradle Convention Plugins inside a build-logic included build for Android multi-module projects. Use when user asks to "create a convention plugin", "add a new plugin to build-logic", "share build config across modules", "reduce build.gradle duplication", or "centralize Gradle config".

Configures and uses Koin for Dependency Injection in Android and KMP projects. Use when user asks to "set up Koin", "add dependency injection", "register a new dependency", "create a Koin module", or troubleshoot injection failures.

Writes idiomatic, clean Kotlin following Android conventions. Use when user asks for "Kotlin code review", "is this idiomatic Kotlin", "Kotlin style check", "how to write this in Kotlin", or to "follow Kotlin best practices".

Writes correct, performant Kotlin Coroutines and Flow code following structured concurrency. Use when user asks to "use coroutines", "implement async", "how does StateFlow work", "collect a Flow", or "fix a coroutine issue".

Implements the MVI (Model-View-Intent) pattern for Android with Jetpack Compose, library-free. Use when user asks to "create a new screen", "add a ViewModel", "implement MVI", "add state management", or "set up unidirectional data flow".

Writes screenshot and snapshot tests for Jetpack Compose UI using Paparazzi. Use when user asks to "add snapshot tests", "visual regression test", "screenshot test with Paparazzi", or "record UI baselines".

Reviews code against OWASP MASVS (Mobile Application Security Verification Standard) controls. Use when user says "security review", "check for vulnerabilities", "OWASP audit", or when code handles sensitive data, authentication, networking, local storage, or deep links. Reports findings as PASS / WARN / FAIL.