npx claudepluginhub xoai/sageThis skill uses the workspace's default tool permissions.
**Layer 1 — Domain Foundation**
Enforces mobile-first design by scoring feature feasibility with MFRI index and mandating checks for platform, framework, navigation, offline, and accessibility before mobile app work.
Guides building, optimizing, testing, and deploying iOS/Android apps with React Native, Flutter, SwiftUI, Jetpack Compose. Covers mobile UI, offline sync, push notifications, performance, app stores.
Designs iOS/Android app architecture, audits performance/compliance, specs features with edge cases, analyzes tech stacks, sets up release pipelines, and builds/reviews UI components for native and cross-platform apps.
Share bugs, ideas, or general feedback.
Layer 1 — Domain Foundation
Universal mobile development principles that apply to every mobile project regardless of framework. React Native, Flutter, Swift, Kotlin — these hold.
Mobile is not "web on a small screen." The constraints are fundamentally different: unreliable networks, limited battery, touch as primary input, platform-specific user expectations, background/foreground lifecycle, and physical device variations from $80 phones to $1500 flagships.
This pack encodes the mobile-specific principles that agents consistently miss when applying web-first thinking to mobile development.
| Type | Files | Coverage |
|---|---|---|
| Patterns | 7 | Offline-first, performance/60fps, touch & gestures, navigation, lifecycle, responsive layout, platform conventions |
| Anti-patterns | 5 | Web-first thinking, blocking main thread, ignoring lifecycle, hardcoded dimensions, permission spam |
| Constitution | 1 | 6 non-negotiable mobile principles |
react-native, flutter)backend)