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kotlin-concurrency-and-flow

Use when writing or reviewing Kotlin coroutine scope ownership, raw Thread or Executor work, init launches, non-suspending launch APIs, runBlocking, cancellation, StateFlow, SharedFlow, Channel, stateIn, SharingStarted, state updates, or one-shot events.

skills/kotlin-concurrency-and-flow/SKILL.md

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Repository stars (not skill ratings): 1,145
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License: Apache-2.0

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android Repository topic
compose-multiplatform Repository topic
coroutines Repository topic
jetpack-compose Repository topic
kotlin Repository topic
kotlin-multiplatform Repository topic
skills Repository topic
writing Derived category

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SKILL.mdcore · 2,856 bytes
references/flow-state-events.mddoc · 2,883 bytes
references/structured-concurrency.mddoc · 5,218 bytes

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# Kotlin concurrency and Flow

## Core principle

Give asynchronous work an explicit owner and lifetime, then model durable state
and transient events with primitives whose delivery and replay semantics match
the product contract.

## Procedure

1. Identify each coroutine owner, cancellation boundary, producer, consumer,
   durable state, and transient event.
2. Before changing an API, compare its existing caller-visible contract with
   the required owner and lifetime. If a suspend API already gives its caller