Write safe concurrent Go code with goroutines, channels, and context. Use when implementing concurrency with goroutines, channels, or context in Go.
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ctx to manage cancellation, deadlines, and graceful termination.go test -race.errgroup.Group for parallel tasks with error propagation, channels for pipelines, sync.Mutex for simple shared state.sem := make(chan struct{}, maxWorkers)
for _, task := range tasks {
task := task // prevent loop pointer capture
sem <- struct{}{}
g.Go(func() error {
defer func() { <-sem }()
return task.Execute(ctx)
})
}
ctx.Done().go test -race in local dev and CI.See ErrGroup and concurrency patterns and context timeout examples
ctx.Done() or channel closure.&item) into a concurrent closure.errgroup or sync.WaitGroup for lifecycle tracking.No reviews yet. Tell others what you thought.
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Upgrade an Android project to Android Gradle Plugin (AGP) 9. Use when migrating to AGP 9, updating Gradle build files, migrating to built-in Kotlin, or adopting the new AGP DSL.
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Apply Clean Architecture layering, modularization, and Unidirectional Data Flow in Android projects. Use when setting up project structure, placing code in layers, configuring feature/core modules, or implementing UDF patterns; defer Compose state and ViewModel/StateFlow implementation to their specific skills.
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Implement WorkManager and background processing correctly on Android. Use when creating Worker classes, scheduling tasks, choosing between WorkManager and Foreground Services, or setting up Hilt in workers; defer FCM and notification delivery to android-notifications.
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Build high-performance declarative UI with Jetpack Compose. Use when writing Composable functions, optimizing recomposition, hoisting state, or working with LazyColumn and side effects; defer deep-link and navigation routing to android-navigation.
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Migrate an Android XML View to Jetpack Compose following a structured 10-step workflow. Use when converting XML layouts to Compose, setting up Compose in an existing View-based project, or incrementally adopting Compose.
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Write correct coroutine scopes, lifecycle collection, and dispatcher injection in Android production code. Use for suspend functions, coroutine scopes, and dispatcher mechanics; defer ViewModel StateFlow/LiveData architecture, Fragment lifecycle recipes, persistence/notifications, and unit-test recipes to their specific skills.
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