Index of Apple developer documentation for iOS, macOS, and related frameworks. Use when looking up what APIs exist in a framework, browsing available documentation, or deciding what docs to fetch. Covers SwiftUI, UIKit, Core Animation (QuartzCore), XCTest, HealthKit, Combine, SwiftData, and more.

Apple Documentation Index This skill provides indexes of Apple framework documentation. Use these to: Browse available APIs in a framework Find the path to specific documentation Decide what detailed docs to download Available Indexes Framework File Size Topics SwiftUI ../swiftui/swiftui overview.md 907KB Views, modifiers, navigation, state XCTest xctest index.md 55KB Testing, assertions, expectations XCUIAutomation xcuiautomation index.md 58KB UI testing, elements, queries UIKit ../uikit/uikit overview.md 1.8MB Views, controllers, controls, scenes Core Animation ../core animation/core animation index.md 80KB CALayer, CAAnimation, CATransaction, layer subclasses HealthKit healthkit index.md 312KB Health data, workouts, records Combine combine index.md 153KB Publishers, subscribers, operators SwiftData swiftdata index.md 86KB Models, containers, queries Observation observation index.md 3KB @Observable macro How to Use 1. Browse an Index 2. Find Documentation Paths Index files list all available documentation pages. Each entry shows the path: 3. Fetch More Detailed Docs 1. Check whether the detailed page is already available in one of your installed Apple skills. 2. Use skill names, descriptions, or SKILL.md frontmatter to find likely skill directories, then grep their local .md files before fetching. This is faster and uses less context than fetching new docs from the internet. 3. If no installed skill has the page, use the same path with the sosumi.ai Markdown mirror. For example, /documentation/healthkit/hkworkout maps to https://sosumi.ai/documentation/healthkit/hkworkout . 4. Browse Missing Framework Indexes If the local indexes don't include the framework you need, use the framework's sosumi.ai index: For example, https://sosumi.ai/documentation/foundation provides a Markdown index you can search for Foundation paths. If the Markdown mirror is unavailable and your environment can parse JSON, Apple's public DocC index endpoint is: The useful path tree is under interfaceLanguages.swift[0].children .

apple-docs-index