megastep iOS System Integration Router
You MUST use this skill for ANY iOS system integration including Siri, Shortcuts, widgets, in-app purchases, camera, photo library, audio, axiom-haptics, and more.
When to Use
Use this router for:
- Siri & Shortcuts (App Intents)
- Apple Intelligence integration
- Widgets & Live Activities
- In-app purchases (StoreKit)
- Camera capture (AVCaptureSession)
- Photo library & pickers (PHPicker, PhotosPicker)
- Audio & haptics
- Localization
- Privacy & permissions
- Spotlight search
- App discoverability
- Background processing (BGTaskScheduler)
- Location services (Core Location)
Cross-Domain Routing
When integration issues overlap with other domains:
Widget + data sync issues (widget not showing updated data):
- Widget timeline not refreshing → stay in ios-integration (extensions-widgets)
- SwiftData/Core Data not shared with extension → also invoke ios-data — App Groups and shared containers are data-layer concerns
- Background refresh timing → also invoke ios-concurrency if async patterns are involved
Live Activity + push notification issues:
- ActivityKit push token setup, Live Activity not updating → stay in ios-integration (extensions-widgets)
- Push notification delivery failures, APNs errors → also invoke ios-networking (networking-diag)
- Entitlements/certificates misconfigured → also invoke ios-build (xcode-debugging)
Camera + permissions + privacy:
- Camera code issues → stay in ios-integration (camera-capture)
- Privacy manifest or Info.plist issues → stay in ios-integration (privacy-ux)
- Build/entitlement errors → also invoke ios-build
Routing Logic
Apple Intelligence & Siri
App Intents → $axiom-app-intents-ref
App Shortcuts → $axiom-app-shortcuts-ref
App discoverability → $axiom-app-discoverability
Core Spotlight → $axiom-core-spotlight-ref
Widgets & Extensions
Widgets/Live Activities → $axiom-extensions-widgets
Widget reference → $axiom-extensions-widgets-ref
In-App Purchases
IAP implementation → $axiom-in-app-purchases
StoreKit 2 reference → $axiom-storekit-ref
IAP audit → Launch iap-auditor agent (missing transaction.finish(), weak receipt validation, missing restore, subscription tracking)
IAP full implementation → Launch iap-implementation agent (StoreKit config, StoreManager, transaction handling, restore purchases)
Camera & Photos
Camera capture implementation → $axiom-camera-capture
Camera API reference → $axiom-camera-capture-ref
Camera debugging → $axiom-camera-capture-diag
Camera audit → Launch camera-auditor agent or /axiom:audit camera (deprecated APIs, missing interruption handlers, threading violations, permission anti-patterns)
Photo pickers & library → $axiom-photo-library
Photo library API reference → $axiom-photo-library-ref
Audio & Haptics
Audio (AVFoundation) → $axiom-avfoundation-ref
Haptics → $axiom-haptics
Now Playing → $axiom-now-playing
CarPlay Now Playing → $axiom-now-playing-carplay
MusicKit integration → $axiom-now-playing-musickit
Localization & Privacy
Localization → $axiom-localization
Privacy UX → $axiom-privacy-ux
Background Processing
BGTaskScheduler implementation → $axiom-background-processing
Background task debugging → $axiom-background-processing-diag
Background task API reference → $axiom-background-processing-ref
Location Services
Implementation patterns → $axiom-core-location
API reference → $axiom-core-location-ref
Debugging location issues → $axiom-core-location-diag
Decision Tree
- App Intents / Siri / Apple Intelligence? → app-intents-ref
- App Shortcuts? → app-shortcuts-ref
- App discoverability / Spotlight? → app-discoverability, core-spotlight-ref
- Widgets / Live Activities? → extensions-widgets, extensions-widgets-ref
- In-app purchases / StoreKit? → in-app-purchases, storekit-ref
- Want IAP audit (missing finish, receipt validation)? → iap-auditor (Agent)
- Want full IAP implementation? → iap-implementation (Agent)
- Camera capture? → camera-capture (patterns), camera-capture-diag (debugging), camera-capture-ref (API)
- Want camera code audit? → camera-auditor (Agent)
- Photo pickers / library? → photo-library (patterns), photo-library-ref (API)
- Audio / AVFoundation? → avfoundation-ref
- Now Playing? → now-playing, now-playing-carplay, now-playing-musickit
- Haptics? → haptics
- Localization? → localization
- Privacy / permissions? → privacy-ux
- Background processing? → background-processing (patterns), background-processing-diag (debugging), background-processing-ref (API)
- Location services? → core-location (patterns), core-location-diag (debugging), core-location-ref (API)
Anti-Rationalization
| Thought | Reality |
|---|---|
| "App Intents are just a protocol conformance" | App Intents have parameter validation, entity queries, and background execution. app-intents-ref covers all. |
| "Widgets are simple, I've done them before" | Widgets have timeline, interactivity, and Live Activity patterns that evolve yearly. extensions-widgets is current. |
| "I'll add haptics with a simple API call" | Haptic design has patterns for each interaction type. haptics skill matches HIG guidelines. |
| "Localization is just String Catalogs" | Xcode 26 has type-safe localization, generated symbols, and #bundle macro. localization skill is current. |
| "Camera capture is just AVCaptureSession setup" | Camera has interruption handlers, rotation, and threading requirements. camera-capture covers all. |
Example Invocations
User: "How do I add Siri support for my app?"
→ Invoke: $axiom-app-intents-ref
User: "My widget isn't updating"
→ Invoke: $axiom-extensions-widgets
User: "My widget isn't showing updated SwiftData content"
→ Invoke: $axiom-extensions-widgets + also invoke ios-data router for App Group/shared container setup
User: "My Live Activity isn't updating and I'm getting push notification errors"
→ Invoke: $axiom-extensions-widgets for ActivityKit + also invoke ios-networking router for push delivery
User: "Implement in-app purchases with StoreKit 2"
→ Invoke: $axiom-in-app-purchases
User: "How do I localize my app strings?"
→ Invoke: $axiom-localization
User: "Implement haptic feedback for button taps"
→ Invoke: $axiom-haptics
User: "How do I set up a camera preview?"
→ Invoke: $axiom-camera-capture
User: "Camera freezes when I get a phone call"
→ Invoke: $axiom-camera-capture-diag
User: "What is RotationCoordinator?"
→ Invoke: $axiom-camera-capture-ref
User: "How do I let users pick photos in SwiftUI?"
→ Invoke: $axiom-photo-library
User: "User can't see their photos after granting access"
→ Invoke: $axiom-photo-library
User: "How do I save a photo to the camera roll?"
→ Invoke: $axiom-photo-library
User: "My background task never runs"
→ Invoke: $axiom-background-processing-diag
User: "How do I implement BGTaskScheduler?"
→ Invoke: $axiom-background-processing
User: "What's the difference between BGAppRefreshTask and BGProcessingTask?"
→ Invoke: $axiom-background-processing-ref
User: "How do I implement geofencing?"
→ Invoke: $axiom-core-location
User: "Location updates not working in background"
→ Invoke: $axiom-core-location-diag
User: "What is CLServiceSession?"
→ Invoke: $axiom-core-location-ref
User: "Review my in-app purchase implementation"
→ Invoke: iap-auditor agent
User: "Implement in-app purchases for my app"
→ Invoke: iap-implementation agent
User: "Check my camera code for issues"
→ Invoke: camera-auditor agent