swift-concurrency-expert

Fix data race errors in Swift 6.2 by applying actor isolation and Sendable conformances to your types. This Skill analyzes your codebase to identify concurrency risks and recommends minimal behavioral changes like adding @MainActor to ensure thread safety.

Main actor isolation in Swift concurrency restricts type and function execution to the main thread, preventing UI data races. This Skill guides you through adopting default main-actor isolation patterns in UI-heavy Swift 6.2+ applications while preserving existing behavior.

Refactor an existing Swift app to use Sendable types by applying isolated conformances and safe offloading strategies. This Skill provides guided migrations for libraries and apps, helping you adopt approachable concurrency with minimal behavioral changes.

You can use @concurrent to offload tasks from the main actor in Swift 6.2. This Skill identifies safe offloading opportunities within your codebase, ensuring background execution maintains data-race safety alongside your actor isolation boundaries.

The best way to migrate a UI-heavy Swift app to Swift 6 concurrency is through minimal actor-isolation changes. This Skill enforces requirements like isolated conformances and @MainActor usage to guide safe migrations while preserving current app behavior.