From sage
Provides React Native patterns for New Architecture (Fabric, TurboModules), Expo, navigation, performance, and state management. Corrects Bridge-era anti-patterns and mistakes from old training data.
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**Layer 2 — Framework Pack**
Provides production-ready patterns for React Native development with Expo, covering navigation, state management, native modules, and offline-first architecture. Useful for new projects, complex navigation, and mobile optimization.
Builds production React Native apps with Expo, covering navigation, state management, native modules, offline sync, and cross-platform patterns. Use for new projects, native integrations, and mobile architecture.
Provides React Native and Expo best practices for performant mobile apps, including list optimization with FlashList, Reanimated animations, native navigation, and UI patterns like expo-image.
Share bugs, ideas, or general feedback.
Layer 2 — Framework Pack
React Native patterns for the New Architecture era (0.76+). Fabric, TurboModules, Expo, navigation, and the mistakes agents make from old Bridge-era training data.
React Native underwent a fundamental architectural shift. The old Bridge (async JSON serialization between JS and native) is replaced by JSI (direct synchronous C++ references). Fabric replaces the old UI Manager. TurboModules replace legacy Native Modules. Starting from RN 0.82, the New Architecture is always-on and can't be disabled.
LLMs trained on 2018-2023 content produce Bridge-era patterns: old lifecycle methods, legacy navigation libraries, manual native module boilerplate. This pack establishes New Architecture as the baseline and corrects stale patterns.
| Type | Files | Coverage |
|---|---|---|
| Patterns | 7 | New Architecture, Expo workflow, navigation, state management, native modules, lists, styling |
| Anti-patterns | 5 | Bridge-era patterns, wrong navigation library, blocking JS thread, inline styles everywhere, unnecessary native modules |
| Constitution | 1 | 5 React Native-specific principles |
| Gate | 1 | RN pattern compliance check |