Implement an Android feature from a specification or acceptance criteria through architecture, production code, formatting, unit tests, JVM integration tests, local Compose behavior tests, screenshot matrices, managed-device integration tests, end-to-end coverage, and final verification. Use when adding or…
Use when writing or reviewing Kotlin branching and control flow: when expressions, guard conditions, sealed type exhaustiveness, smart casts, nullable branching, early returns, or replacing complex if/else chains.
Use when writing or reviewing Kotlin code that stores CoroutineScope, launches from init/non-suspending APIs, calls runBlocking, or catches broad exceptions around suspend calls.
Use when writing or reviewing Kotlin Flow state and event APIs with StateFlow, MutableStateFlow.update, SharedFlow, Channel, stateIn, SharingStarted, .value, receiveAsFlow, one-shot events, or sentinel initial values.
Use when choosing Kotlin member, top-level, extension, factory, or service functions for String, primitive, collection, Flow, framework, or third-party receivers.
Use when writing or reviewing Kotlin type declarations to choose @JvmInline value class over data class where appropriate, including Compose stability implications.
Use when asked to shepherd, babysit, monitor, or poll open pull requests or merge requests — including triaging review comments, detecting CI failures, fixing trivial CI issues, and keeping PRs/MRs moving without manual intervention.
Use when a Kotlin, Android, or Jetpack Compose task is too broad for any single focused skill to obviously apply, especially for general review, refactor, architecture, state, performance, testing, or UI API design work.
Select and run proportionate checks for changes in this Android and Kotlin repository. Use after modifying Kotlin, Compose, Gradle, resources, shell scripts, tests, dependencies, screenshots, benchmarks, or AI guidance; when diagnosing a failed local check; or before reporting an implementation complete.
Instructions for ashtanko/compose-android-template, a project described as: 📱 A simple GitHub template to quickly set up an Android project using Kotlin and Jetpack Compose, getting you up and running in just seconds. Perfect for starting new apps with modern Android UI.