ios-platform-capabilities git:20260929.c29972dA

Immutable. This exact content never changes and is served at /api/v1/blob/814b0f1d46cf91dc.

---
name: ios-platform-capabilities
description: Use when integrating iOS capabilities including App Intents, Spotlight, SwiftData, offline storage, biometrics, notifications, Bluetooth, media, PDF, Foundation Models, Core ML, or Vision; use ios-development for app architecture.
metadata:
  portable: true
  compatible_with:
  - claude-code
  - codex
---

# iOS Platform Capabilities
Acknowledgement: Shared by Peter Bamuhigire, techguypeter.com, +256 784 464178.

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## Use When

- Implementing or reviewing iOS capabilities that require Apple frameworks, entitlements, permissions, device hardware, background delivery, native export, Siri exposure, or Spotlight indexing.
- The task references App Intents, App Entities, App Schemas, View Annotations, Core Spotlight, WidgetKit, LocalAuthentication, CoreBluetooth, APNs, notification extensions, URLSession, offline queues, certificate pinning, NowPlaying, Music Understanding, or `UIGraphicsPDFRenderer`.
- A retired capability skill is referenced by name.

## Do Not Use When

- The work is general iOS architecture or UI without a platform framework capability.
- The work is StoreKit monetization; use `ios-monetization`.
- The work is security/RBAC governance rather than capability implementation; use `ios-security-and-rbac`.

## Required Inputs

- Capability scope, target iOS versions, entitlements, permission copy, backend/API contract, offline requirements, privacy disclosures, and relevant device constraints.

## Workflow

1. Load `ios-development` for baseline Swift and app-structure rules.
2. Load `ios-security-and-rbac` when the capability touches secrets, identity, device trust, authorization, or tenant data.
3. Load `references/app-intents-siri-spotlight-wwdc26.md` when the feature exposes content/actions to Siri, Spotlight, widgets, or App Intents Testing.
4. Pick the reference for the requested capability and follow its implementation workflow.
5. Verify simulator/device limitations, entitlement setup, fallback behaviour, App Review evidence, and user-facing permission states.

## Quality Standards

- Capabilities must handle permission denied, unavailable hardware, offline operation where relevant, and background lifecycle constraints.
- Native framework use must be testable, privacy-compliant, and documented in release notes or app-review evidence when required.
- Siri/App Intents integrations must have entity/action inventory, semantic-index privacy review, App Intents tests, and unavailable-state handling.

## Anti-Patterns

- Implementing hardware or notification features without real-device verification.
- Hiding entitlement, permission, or App Review requirements inside code comments only.
- Building PDF/report/networking features without retry, failure, and export-state handling.

## Outputs

- Capability implementation guidance, framework integration checklist, entitlement/privacy notes, test plan, or review findings.

## Inputs

| Artefact | Produced by | Required? | Why |
|---|---|---|---|
| Capability use case and fallback | Product owner | required | Prevents unnecessary entitlement requests |
| Privacy and threat assessment | `ios-security-and-rbac` | required for sensitive capabilities | Defines permission and data boundaries |
| Supported device/OS matrix | `mobile-platform-operations` | required | Establishes availability branches |

## Decision Rules

| Condition | Action |
|---|---|
| Capability works without permission | Do not request the permission |
| Permission is contextual | Ask immediately before the user action that needs it |
| Device or OS lacks the framework | Provide a documented in-app fallback |
| Entitlement is not approved or provisioned | Stop release of that capability |

## Domain Anti-Patterns

- Requesting every permission at launch. Fix: ask in context after explaining value.
- Assuming an entitlement exists because code compiles. Fix: verify provisioning and device behaviour.
- Indexing sensitive content into Spotlight. Fix: classify and exclude private records.
- Making Siri or widgets the only path. Fix: retain an accessible in-app workflow.
- Treating Bluetooth transport success as print success. Fix: confirm protocol response and retry state.

- `references/ios-biometric-login.md` for Face ID/Touch ID launch gates and LocalAuthentication.
- `references/ios-bluetooth-printing.md` for CoreBluetooth ESC/POS thermal printing.
- `references/ios-push-notifications.md` for APNs, rich notifications, service extensions, and silent push.
- `references/ios-pdf-export.md` for native multipage PDF export with `UIGraphicsPDFRenderer`.
- `references/ios-networking-advanced.md` for production URLSession, typed errors, refresh, pinning, multipart, and offline queues.
- `references/app-intents-siri-spotlight-wwdc26.md` for App Intents, App Entities, App Schemas, View Annotations, Spotlight semantic indexing, App Intents Testing, and widget customization.
- `references/apple-framework-watch-items-wwdc26.md` for NowPlaying, Music Understanding, RAW, camera/media, Background Assets, Game Porting Toolkit, Unity plugins, and specialty follow-up routing.
## References

- Load the retained [iOS AI/ML workflow](../ios-ai-ml/ALIAS.md) for Foundation Models, Core ML, Vision, Natural Language, and evaluation depth.
- Load the retained [iOS persistence workflow](../ios-data-persistence/ALIAS.md) for SwiftData, migrations, semantic indexing, and local AI context.
## Evidence Produced

| Category | Artifact | Format | Example |
| --- | --- | --- | --- |
| Correctness | Apple capability integration evidence | Markdown plus device/test output | availability, entitlement, permission denial, data lifecycle, fallback, and device result |

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## Read next
- `ios-security-and-rbac` for protected capabilities; `mobile-platform-operations` for entitlement and device verification.