Apple Documentation Router

Apple bundles for-LLM markdown documentation inside Xcode. These are authoritative, up-to-date guides and diagnostics written by Apple engineers. Use them alongside Axiom skills for the most accurate information.

When to Use

Use Apple's bundled docs when:

• You need the exact API signature or behavior from Apple
• Axiom skills reference an Apple framework and you want the official source
• A Swift compiler diagnostic needs explanation
• The user asks about a specific Apple framework feature

Priority: Axiom skills provide opinionated guidance (decision trees, anti-patterns, pressure scenarios). Apple docs provide authoritative API details. Use both together.

Guide Topics (AdditionalDocumentation)

Read these with the MCP axiom_read_skill tool using the skill name.

UI & Design

Topic	Skill Name
Liquid Glass in SwiftUI	apple-guide-swiftui-implementing-liquid-glass-design
Liquid Glass in UIKit	apple-guide-uikit-implementing-liquid-glass-design
Liquid Glass in AppKit	apple-guide-appkit-implementing-liquid-glass-design
Liquid Glass in WidgetKit	apple-guide-widgetkit-implementing-liquid-glass-design
SwiftUI toolbar features	apple-guide-swiftui-new-toolbar-features
SwiftUI styled text editing	apple-guide-swiftui-styled-text-editing
SwiftUI WebKit integration	apple-guide-swiftui-webkit-integration
SwiftUI AlarmKit integration	apple-guide-swiftui-alarmkit-integration
Swift Charts 3D visualization	apple-guide-swift-charts-3d-visualization
Foundation AttributedString	apple-guide-foundation-attributedstring-updates

Data & Persistence

Topic	Skill Name
SwiftData class inheritance	apple-guide-swiftdata-class-inheritance

Concurrency & Performance

Topic	Skill Name
Swift concurrency updates	apple-guide-swift-concurrency-updates
InlineArray and Span	apple-guide-swift-inlinearray-span

Apple Intelligence

Topic	Skill Name
Foundation Models (on-device LLM)	apple-guide-foundationmodels-using-on-device-llm-in-your-app

System Integration

Topic	Skill Name
App Intents updates	apple-guide-appintents-updates
StoreKit updates	apple-guide-storekit-updates
MapKit GeoToolbox	apple-guide-mapkit-geotoolbox-placedescriptors
Widgets for visionOS	apple-guide-widgets-for-visionos

Accessibility

Topic	Skill Name
Assistive Access in iOS	apple-guide-implementing-assistive-access-in-ios

Computer Vision

Topic	Skill Name
Visual Intelligence in iOS	apple-guide-implementing-visual-intelligence-in-ios

Swift Compiler Diagnostics

These explain specific Swift compiler errors and warnings with examples and fixes.

Concurrency Diagnostics

Diagnostic	Skill Name
Actor-isolated call from nonisolated context	apple-diag-actor-isolated-call
Conformance isolation	apple-diag-conformance-isolation
Isolated conformances	apple-diag-isolated-conformances
Nonisolated nonsending by default	apple-diag-nonisolated-nonsending-by-default
Sendable closure captures	apple-diag-sendable-closure-captures
Sendable metatypes	apple-diag-sendable-metatypes
Sending closure risks data race	apple-diag-sending-closure-risks-data-race
Sending risks data race	apple-diag-sending-risks-data-race
Mutable global variable	apple-diag-mutable-global-variable
Preconcurrency import	apple-diag-preconcurrency-import

Type System Diagnostics

Diagnostic	Skill Name
Existential any	apple-diag-existential-any
Existential member access limitations	apple-diag-existential-member-access-limitations
Nominal types	apple-diag-nominal-types
Multiple inheritance	apple-diag-multiple-inheritance
Protocol type non-conformance	apple-diag-protocol-type-non-conformance
Opaque type inference	apple-diag-opaque-type-inference

Build & Migration Diagnostics

Diagnostic	Skill Name
Deprecated declaration	apple-diag-deprecated-declaration
Error in future Swift version	apple-diag-error-in-future-swift-version
Strict language features	apple-diag-strict-language-features
Strict memory safety	apple-diag-strict-memory-safety
Implementation only deprecated	apple-diag-implementation-only-deprecated
Member import visibility	apple-diag-member-import-visibility
Missing module on known paths	apple-diag-missing-module-on-known-paths
Clang declaration import	apple-diag-clang-declaration-import
Availability unrecognized name	apple-diag-availability-unrecognized-name
Unknown warning group	apple-diag-unknown-warning-group

Swift Language Diagnostics

Diagnostic	Skill Name
Dynamic callable requirements	apple-diag-dynamic-callable-requirements
Property wrapper requirements	apple-diag-property-wrapper-requirements
Result builder methods	apple-diag-result-builder-methods
String interpolation conformance	apple-diag-string-interpolation-conformance
Trailing closure matching	apple-diag-trailing-closure-matching
Temporary pointers	apple-diag-temporary-pointers

Routing Decision Tree

User question about Apple API/framework?
├── Specific compiler error/warning → Read matching apple-diag-* skill
├── Liquid Glass implementation → Read apple-guide-*-liquid-glass-design (SwiftUI/UIKit/AppKit)
├── Swift concurrency patterns → Read apple-guide-swift-concurrency-updates
├── Foundation Models / on-device AI → Read apple-guide-foundationmodels-*
├── SwiftData features → Read apple-guide-swiftdata-*
├── StoreKit / IAP → Read apple-guide-storekit-updates
├── App Intents / Siri → Read apple-guide-appintents-updates
├── Charts / visualization → Read apple-guide-swift-charts-3d-visualization
├── Text editing / AttributedString → Read apple-guide-swiftui-styled-text-editing or apple-guide-foundation-attributedstring-updates
├── WebKit in SwiftUI → Read apple-guide-swiftui-webkit-integration
├── Toolbar features → Read apple-guide-swiftui-new-toolbar-features
└── Other → Search with axiom_search_skills using source filter "apple"

Resources

Skills: axiom-ios-ui, axiom-ios-concurrency, axiom-ios-data, axiom-ios-ai, axiom-ios-integration