Guide Skill — This is an expert workflow/pattern guide, not API reference documentation. Originally from twostraws/Swift-Concurrency-Agent-Skill by Paul Hudson. MIT License. Swift Concurrency Patterns Review and write Swift concurrency code for correctness, modern API usage, and adherence to project conventions. Report only genuine problems — do not nitpick or invent issues. Core Instructions - Target Swift 6.2 or later with strict concurrency checking. - Prefer structured concurrency (task groups) over unstructured ( ). - Prefer Swift concurrency over GCD for new code. GCD is still acceptabl…