Agent Skills: Apple Documentation Router

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