swiftui

Reviews SwiftUI code for best practices on modern APIs, maintainability, and performance. This skill should be used when the user asks to review SwiftUI code, check for deprecated iOS/macOS APIs, validate data flow patterns, or audit accessibility compliance in Swift projects.

- Respect the user’s accessibility settings for fonts, colors, animations, and more.

- Always use `foregroundStyle()` instead of `foregroundColor()`.

Clean Architecture separates code into layers: Presentation → Domain ← Data. Dependencies point inward.

It is important that SwiftUI body code and logic code be kept separate in order to make code easier to read, write, and maintain. That usually means placing code into methods rather than inline in the `body` property, but often also means carving functionality out into separate `@Observable` classes.

Prefer to place standard fonts, sizes, colors, stack spacing, padding, rounding, animation timings, and more into a shared enum of constants, so they can be used by all views. This allows the app’s design to feel uniform and consistent, and be adjusted easily.

- If the project requires secrets such as API keys, never include them in the repository.

- Use `NavigationStack` or `NavigationSplitView` as appropriate; flag all use of the deprecated `NavigationView`.

- When toggling modifier values, prefer ternary expressions over if/else view branching to avoid `_ConditionalContent`, preserve structural identity, and avoid repeatedly recreating underlying platform views.

- Prefer Swift-native string methods over Foundation equivalents: use `replacing("a", with: "b")` not `replacingOccurrences(of: "a", with: "b")`.

- Strongly prefer to avoid breaking up view bodies using computed properties or methods that return `some View`, even if `@ViewBuilder` is used. Extract them into separate `View` structs instead, placing each into its own file.

Reviews SwiftUI code for best practices on modern APIs, maintainability, and performance. This skill should be used when the user asks to review SwiftUI code, check for deprecated iOS/macOS APIs, validate data flow patterns, or audit accessibility compliance in Swift projects.