Reference Index

Quick navigation for the Swift Concurrency skill.

Foundations

File	Use it for
async-await-basics.md	closure-to-async bridges and foundational async/await usage
tasks.md	Task, cancellation, task groups, structured vs unstructured work
actors.md	actor isolation, @MainActor, reentrancy, isolated conformances
sendable.md	Sendable, @Sendable, region isolation, escape hatches
threading.md	execution model, suspension points, Swift 6.2 isolation behavior

Streams

File	Use it for
async-sequences.md	deciding between AsyncSequence, AsyncStream, and one-shot async APIs
async-algorithms.md	debounce, throttle, merge, combineLatest, channels, timers

Applied Topics

File	Use it for
testing.md	Swift Testing first, XCTest fallback, leak checks
performance.md	Instruments workflow, actor hops, suspension cost
memory-management.md	retain cycles, long-lived tasks, cleanup
core-data.md	NSManagedObjectID, perform, default isolation conflicts

Migration and Tooling

File	Use it for
migration.md	rollout order, build settings, migration guardrails
linting.md	concurrency-focused lint rules
glossary.md	quick definitions

Problem Router

• "I need to fix a compiler error quickly" → ../SKILL.md
• "I need to replace a callback with async/await" → async-await-basics.md
• "I need to protect shared mutable state" → actors.md
• "I need to pass data safely across boundaries" → sendable.md
• "I need stream operators" → async-algorithms.md
• "I need to understand why code runs where it runs" → threading.md
• "I need to stop a leak or lifetime issue" → memory-management.md
• "I need to migrate to Swift 6" → migration.md
• "I need to test async code" → testing.md
• "I need to optimize slow async code" → performance.md