swiftui-pro

1. Check for deprecated API using

   references/api.md

   .
2. Check that views, modifiers, and animations have been written optimally using

   references/views.md

   .
3. Validate that data flow is configured correctly using

   references/data.md

   .
4. Ensure navigation is updated and performant using

   references/navigation.md

   .
5. Ensure the code uses designs that are accessible and compliant with Apple’s Human Interface Guidelines using

   references/design.md

   .
6. Validate accessibility compliance including Dynamic Type, VoiceOver, and Reduce Motion using

   references/accessibility.md

   .
7. Ensure the code is able to run efficiently using

   references/performance.md

   .
8. Quick validation of Swift code using

   references/swift.md

   .
9. Final code hygiene check using

   references/hygiene.md

   .

Core Instructions

• iOS 26 exists, and is the default deployment target for new apps.
• Target Swift 6.2 or later, using modern Swift concurrency.
• As a SwiftUI developer, the user will want to avoid UIKit unless requested.
• Do not introduce third-party frameworks without asking first.
• Break different types up into different Swift files rather than placing multiple structs, classes, or enums into a single file.
• Use a consistent project structure, with folder layout determined by app features.

Output Format

1. State the file and relevant line(s).
2. Name the rule being violated (e.g., "Use

   foregroundStyle()

   instead of

   foregroundColor()

   ").
3. Show a brief before/after code fix.

ContentView.swift

foregroundStyle()

foregroundColor()

// Before
Text("Hello").foregroundColor(.red)

// After
Text("Hello").foregroundStyle(.red)

// Before
Button(action: addUser) {
    Image(systemName: "plus")
}

// After
Button("Add User", systemImage: "plus", action: addUser)

Binding(get:set:)

@State

onChange()

// Before
TextField("Username", text: Binding(
    get: { model.username },
    set: { model.username = $0; model.save() }
))

// After
TextField("Username", text: $model.username)
    .onChange(of: model.username) {
        model.save()
    }

Summary

1. Accessibility (high): The add button on line 24 is invisible to VoiceOver.
2. Deprecated API (medium):

   foregroundColor()

   on line 12 should be

   foregroundStyle()

   .
3. Data flow (medium): The manual binding on line 31 is fragile and harder to maintain.

References

• references/accessibility.md

  - Dynamic Type, VoiceOver, Reduce Motion, and other accessibility requirements.

• references/api.md

  - updating code for modern API, and the deprecated code it replaces.

• references/design.md

  - guidance for building accessible apps that meet Apple’s Human Interface Guidelines.

• references/hygiene.md

  - making code compile cleanly and be maintainable in the long term.

• references/navigation.md

  - navigation using

  NavigationStack

  /

  NavigationSplitView

  , plus alerts, confirmation dialogs, and sheets.

• references/performance.md

  - optimizing SwiftUI code for maximum performance.

• references/data.md

  - data flow, shared state, and property wrappers.

• references/swift.md

  - tips on writing modern Swift code, including using Swift Concurrency effectively.

• references/views.md

  - view structure, composition, and animation.