react-native-state-management
Implement local and global state with Context, Zustand, and Redux Toolkit in React Native. Use when choosing or implementing state management in React Native with Context, Zustand, or Redux.
What this skill does
# React Native State Management
## **Priority: P1 (OPERATIONAL)**
## State Strategy
- **Local State**: Use `useState` for component-scoped state (forms, UI toggles).
- **Lifted State**: Share between siblings via parent component.
- **Context**: Share across components without prop drilling (theme, auth).
- **Zustand**: Lightweight global state for small-medium apps.
- **Redux Toolkit**: Complex apps with time-travel debugging needs.
- **Server State**: Use `@tanstack/react-query` for API data (caching, refetching).
```tsx
const ThemeContext = createContext<ThemeContextType | undefined>(undefined);
export function useTheme() {
const ctx = useContext(ThemeContext);
if (!ctx) throw new Error('useTheme must be inside ThemeProvider');
return ctx;
}
```
## Zustand (Recommended for Most Apps)
```tsx
import { create } from 'zustand';
const useStore = create((set) => ({
count: 0,
increment: () => set((state) => ({ count: state.count + 1 })),
}));
// Usage
const count = useStore((state) => state.count);
```
## Anti-Patterns
- **No Redux for Everything**: Start with Context/Zustand.
- **No Prop Drilling**: Use Context for global state.
- **No Derived State in State**: Compute in render.
## References
See [references/REFERENCE.md](references/REFERENCE.md) for Context patterns, Zustand store setup, Redux Toolkit, and React Query.Related in Web Dev
generating-lwc-components
IncludedLightning Web Components with PICKLES methodology and 165-point scoring. Use this skill when the user creates or edits LWC components, builds wire service patterns, or writes Jest tests for LWC. TRIGGER when: user creates/edits LWC components, touches lwc/**/*.js, .html, .css, .js-meta.xml files, or asks about wire service, SLDS, or Jest LWC tests. DO NOT TRIGGER when: Apex classes (use generating-apex), Aura components, or Visualforce.
tanstack-query
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document-processor-api
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nutrient-document-processing
IncludedProcess documents with Nutrient DWS. Use when the user wants to generate PDFs from HTML or URLs, convert Office/images/PDFs, assemble or split packets, OCR scans, extract text/tables/key-value pairs, redact PII, watermark, sign, fill forms, optimize PDFs, or produce compliance outputs like PDF/A or PDF/UA. Triggers include convert to PDF, merge these PDFs, OCR this scan, extract tables, redact PII, sign this PDF, make this PDF/A, or linearize for web delivery.
tanstack-query
IncludedManage server state in React with TanStack Query v5. Covers useMutationState, simplified optimistic updates, throwOnError, network mode (offline/PWA), and infiniteQueryOptions. Use when setting up data fetching, fixing v4→v5 migration errors (object syntax, gcTime, isPending, keepPreviousData), or debugging SSR/hydration issues with streaming server components.
accelint-nextjs-best-practices
IncludedNext.js performance optimization and best practices. Use when writing Next.js code (App Router or Pages Router); implementing Server Components, Server Actions, or API routes; optimizing RSC serialization, data fetching, or server-side rendering; reviewing Next.js code for performance issues; fixing authentication in Server Actions; or implementing Suspense boundaries, parallel data fetching, or request deduplication.