Skills by avdlee

Write, review, or improve SwiftUI code following best practices for state management, view composition, performance, modern APIs, Swift concurrency, and iOS 26+ Liquid Glass adoption. Use when building new SwiftUI features, refactoring existing views, reviewing code quality, or adopting modern SwiftUI patterns.

This skill provides expert guidance on Swift Concurrency, migration to Swift 6, and practical patterns for actors, tasks, and Sendable. It contains operational instructions that run CLI tools like `swift package migrate` and references external resources such as `https://github.com/apple/swift-async-algorithms`.

This skill is a Core Data reference for iOS/macOS covering stack setup, migrations, batch operations, CloudKit, and persistent history. It contains benign operational instructions such as running `log stream` diagnostics, downloading `https://developer.apple.com/bug-reporting/profiles-and-logs/`, and persisting history tokens to `UserDefaults.standard`.

The skill provides expert guidance for Swift Testing: test structure, `#expect`/`#require`, traits/tags, parameterized tests, parallelization, and XCTest migration. It includes an example that reads the `CI` environment variable via `ProcessInfo.processInfo.environment["CI"]` to gate tests.