swiftui-specialist — Claude Code skill: SwiftUI patterns

What swiftui-specialist does

The skill is a set of reference files. references/structure.md covers when to split a section into its own View struct versus a computed property, what init costs look like, and why a single-child Group is an anti-pattern. references/dataflow.md handles passing and storing data: @State, @Binding, @Observable models instead of ObservableObject, the @MainActor and Equatable requirements, and the granularity traps of per-property observation.

Other files cover @Environment and EnvironmentKey, conditional modifiers, localizing user-facing text, custom Animatable types, and ForEach. Two more are about soft-deprecated SwiftUI APIs: one explains how to spot them and when to migrate, the other is a searchable list with replacements.

Ask for a broad review of a large codebase and the agent scans the project first, splits it into smaller areas, and offers them for evaluation one at a time; a full review runs off a TODO list. One thing to know: the skill states its content overrides whatever the model previously learned about SwiftUI, so on contested points the agent follows these references instead of its own memory.