android-concurrency
Standards for Coroutines, Flow, and Threading. Use when writing suspend functions, choosing coroutine scopes, switching between StateFlow and SharedFlow, injecting Dispatchers for testability, or debugging threading issues in Android. (triggers: **/*ViewModel.kt, **/*UseCase.kt, **/*Repository.kt, suspend, viewModelScope, lifecycleScope, Flow, coroutine, Dispatcher, DispatcherProvider, GlobalScope)
Best use case
android-concurrency is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
Standards for Coroutines, Flow, and Threading. Use when writing suspend functions, choosing coroutine scopes, switching between StateFlow and SharedFlow, injecting Dispatchers for testability, or debugging threading issues in Android. (triggers: **/*ViewModel.kt, **/*UseCase.kt, **/*Repository.kt, suspend, viewModelScope, lifecycleScope, Flow, coroutine, Dispatcher, DispatcherProvider, GlobalScope)
Teams using android-concurrency should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/android-concurrency/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How android-concurrency Compares
| Feature / Agent | android-concurrency | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Standards for Coroutines, Flow, and Threading. Use when writing suspend functions, choosing coroutine scopes, switching between StateFlow and SharedFlow, injecting Dispatchers for testability, or debugging threading issues in Android. (triggers: **/*ViewModel.kt, **/*UseCase.kt, **/*Repository.kt, suspend, viewModelScope, lifecycleScope, Flow, coroutine, Dispatcher, DispatcherProvider, GlobalScope)
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
SKILL.md Source
# Android Concurrency Standards ## **Priority: P0** ## Implementation Guidelines ### Structured Concurrency - **Scopes**: Always use `viewModelScope` (VM) or `lifecycleScope` (Activity/Fragment). - **Dispatchers**: INJECT Dispatchers (`DispatcherProvider`) for testability. Do not hardcode `Dispatchers.IO`. ### Flow usage - **Cold Streams**: Use `Flow` for data streams. - **Hot Streams**: Use `StateFlow` (State) or `SharedFlow` (Events). - **Collection**: Use `collectAsStateWithLifecycle()` (Compose) or `repeatOnLifecycle` (Views). ## Anti-Patterns - **No GlobalScope**: Use viewModelScope or lifecycleScope — never GlobalScope. - **No async/await by default**: Prefer simple suspend functions; async only for parallel calls. ## References - [Dispatcher Pattern](references/implementation.md)
Related Skills
go-concurrency
Use when writing concurrent Go code — goroutines, channels, mutexes, or thread-safety guarantees. Also use when parallelizing work, fixing data races, or protecting shared state, even if the user doesn't explicitly mention concurrency primitives. Does not cover context.Context patterns (see go-context).
mobile-android-design
Master Material Design 3 and Jetpack Compose patterns for building native Android apps. Use when designing Android interfaces, implementing Compose UI, or following Google's Material Design guidelines.
android-jetpack-compose-expert
Expert guidance for building modern Android UIs with Jetpack Compose, covering state management, navigation, performance, and Material Design 3.
swift-concurrency-expert
Swift Concurrency review and remediation for Swift 6.2+. Use when asked to review Swift Concurrency usage, improve concurrency compliance, or fix Swift concurrency compiler errors in a feature or file.
swift-concurrency-6-2
Swift 6.2 Approachable Concurrency — single-threaded by default, @concurrent for explicit background offloading, isolated conformances for main actor types.
android-clean-architecture
Clean Architecture patterns for Android and Kotlin Multiplatform projects — module structure, dependency rules, UseCases, Repositories, and data layer patterns.
Android Reverse Engineering
Decompile Android APK, XAPK, JAR, and AAR files using jadx and Fernflower/Vineflower, trace call flows through application code and libraries, and produce structured documentation of extracted APIs. Two decompiler engines are supported — jadx for broad Android coverage and Fernflower for higher-quality output on complex Java code — and can be used together for comparison.
php-concurrency
Handling concurrency and non-blocking I/O in modern PHP. Use when implementing concurrent requests, async processing, or non-blocking I/O in PHP. (triggers: **/*.php, Fiber, suspend, resume, non-blocking, async)
java-concurrency
Modern concurrency patterns using Virtual Threads and Structured Concurrency. Use when implementing Java Virtual Threads (Java 21), Structured Concurrency with StructuredTaskScope, CompletableFuture pipelines, or debugging race conditions. (triggers: **/*.java, Thread, Executor, synchronized, lock, CompletableFuture, StructuredTaskScope, VirtualThread, AtomicInteger, async, race condition)
android-xml-views
Standards for ViewBinding, RecyclerView, and XML Layouts. Use when implementing XML layouts, ViewBinding, or RecyclerView adapters in Android. (triggers: layout/*.xml, **/*Binding.java, **/*Binding.kt, ViewBinding, ConstraintLayout, RecyclerView)
android-tooling
Standards for Static Analysis (Detekt, Ktlint) and CI/CD Checks. Use when adding or tuning Detekt/Ktlint rules, setting Android Lint as a CI gate, suppressing lint warnings with @Suppress, or configuring code quality checks on pull requests. (triggers: build.gradle.kts, detekt.yml, .detekt/config.yml, detekt, ktlint, lint, @Suppress, abortOnError, jlleitschuh)
android-testing
Standards for Unit Tests, UI Tests (Compose), and Hilt Integration. Use whenever writing Android test files or asking about runTest, composeTestRule, HiltAndroidRule, MockK, MainDispatcherRule, @TestInstallIn, or how to test a ViewModel/Composable/Repository in Android. (triggers: **/*Test.kt, **/*Rule.kt, @Test, runTest, composeTestRule, HiltAndroidTest, MockK, createAndroidComposeRule, MainDispatcherRule, @TestInstallIn)