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swift-concurrency-expert

Swift concurrency review/fix: compiler errors, Sendable, isolation, remediation.

skills/swift-concurrency-expert/SKILL.md

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# Swift Concurrency Expert

_Attribution: copied from @Dimillian’s `Dimillian/Skills` (2025-12-31)._

## Overview

Review and fix Swift Concurrency issues in Swift 6.2+ codebases by applying actor isolation, Sendable safety, and modern concurrency patterns with minimal behavior changes.

## Workflow

### 1. Triage the issue

- Capture the exact compiler diagnostics and the offending symbol(s).
- Identify the current actor context (`@MainActor`, `actor`, `nonisolated`) and whether a default actor isolation mode is enabled.