swiftui-expert-skill

1# SwiftUI Expert Skill
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3## Operating Rules
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5- Treat each `View` type as an invalidation boundary: give it only the data it reads and keep frequently changing dependencies close to the smallest affected subtree
6- Search `references/latest-apis.md` when writing, reviewing, or migrating API usage; look up only the APIs relevant to the task
7- Replace hard-deprecated APIs with modern equivalents. During feature work, flag soft-deprecated APIs and leave them in place (see `references/soft-deprecation.md`)
8- Prefer native SwiftUI APIs over UIKit/AppKit bridging unless bridging is necessary
9- Focus on correctness and performance; do not enforce specific architectures (MVVM, VIPER, etc.)
10- Encourage separating business logic from views for testability without mandating how
11- Follow Apple's Human Interface Guidelines and API design patterns
12- Only adopt Liquid Glass when explicitly requested by the user (see `references/liquid-glass.md`)
13- Present performance optimizations as suggestions, not requirements
14- Use `#available` gating with sensible fallbacks for version-specific APIs
15- For layout and rendering inputs, read the value nearest the SwiftUI view that consumes it; do not substitute process-global screen state
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17## Task Workflow
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19### Review existing SwiftUI code
20- Read the code under review and identify which topics apply
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