API reference: SwiftUI. Query for views, layouts, navigation, @State/@Binding/@Observable, view modifiers, NavigationStack, iOS 26+ features.

SwiftUI Reference This skill provides access to SwiftUI documentation via downloaded reference files. Downloaded Reference Files The following Apple documentation pages are available locally (grep friendly): File Content [swiftui overview.md](swiftui overview.md) Full SwiftUI framework index (907KB) [view protocol.md](view protocol.md) View protocol and all modifiers (59KB) [state.md](state.md) @State property wrapper [binding.md](binding.md) @Binding property wrapper [environment.md](environment.md) @Environment property wrapper [observation.md](observation.md) @Observable macro (iOS 17+) [navigationstack.md](navigationstack.md) NavigationStack (iOS 16+) [navigationsplitview.md](navigationsplitview.md) NavigationSplitView [tabview.md](tabview.md) TabView [list.md](list.md) List view [canvas.md](canvas.md) Canvas — immediate mode drawing (iOS 15+) [graphicscontext.md](graphicscontext.md) GraphicsContext — drawing API used inside Canvas Fetching More Docs 1. Search this skill's local .md files first. 2. If the topic is not here, check the other installed Apple skills you have available by their names, descriptions, or SKILL.md frontmatter, then grep their local files. This is faster and uses less context than fetching new docs from the internet. 3. If no installed skill has the page, use the relevant documentation path from swiftui overview.md with the sosumi.ai Markdown mirror. For example, /documentation/swiftui/button maps to https://sosumi.ai/documentation/swiftui/button . Common SwiftUI Doc Paths Topic URL Path Text swiftui/text Button swiftui/button Image swiftui/image VStack swiftui/vstack HStack swiftui/hstack ZStack swiftui/zstack Form swiftui/form Sheet swiftui/sheet Alert swiftui/alert Picker swiftui/picker Toggle swiftui/toggle Slider swiftui/slider ProgressView swiftui/progressview AsyncImage swiftui/asyncimage GeometryReader swiftui/geometryreader ScrollView swiftui/scrollview LazyVStack swiftui/lazyvstack LazyHStack swiftui/lazyhstack NavigationLink swiftui/navigationlink ToolbarItem swiftui/toolbaritem Canvas swiftui/canvas GraphicsContext swiftui/graphicscontext Usage Instructions 1. Check downloaded files first Grep the local .md files for your topic 2. Use the overview as an index Search swiftui overview.md for documentation paths 3. Fetch only when needed If no installed skill has the page, use sosumi.ai with documentation paths from the overview Example workflow: Sources [SwiftUI Apple Developer Documentation](https://developer.apple.com/documentation/swiftui)