swift-knowledge-patch

Installation
SKILL.md

Swift 5.10\u20136.3 Knowledge Patch

Claude's baseline knowledge covers Swift through 5.9. This skill provides features from 5.10 (March 2024) through 6.3 (March 2026).

Quick Reference

Concurrency

Feature Summary
-default-isolation MainActor All code MainActor-isolated by default (per module)
@concurrent Opt function into concurrent thread pool
Nonisolated async Runs on caller's actor by default (SE-0461)
Task.immediate Starts synchronously on caller's executor
isolated deinit Runs deinit on actor's executor
weak let Immutable weak ref, enables Sendable
@MainActor Equatable Actor-isolated protocol conformances
Task(name:) Named tasks for debugging
Related skills
Installs
3
GitHub Stars
19
First Seen
Apr 7, 2026