1k-performance
Performance optimization guidelines for OneKey React/React Native applications. Use when optimizing app performance, fixing UI freezes/lag, reducing re-renders, handling concurrent operations, or analyzing performance bottlenecks. Triggers on performance, optimization, optimize, slow, lag, freeze, hang, jank, stutter, memory, leak, concurrent, batching, batch, memoization, memo, bridge, windowSize, contentVisibility, FlashList, re-render, fps, tti, bundle.
Best use case
1k-performance is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
Performance optimization guidelines for OneKey React/React Native applications. Use when optimizing app performance, fixing UI freezes/lag, reducing re-renders, handling concurrent operations, or analyzing performance bottlenecks. Triggers on performance, optimization, optimize, slow, lag, freeze, hang, jank, stutter, memory, leak, concurrent, batching, batch, memoization, memo, bridge, windowSize, contentVisibility, FlashList, re-render, fps, tti, bundle.
Teams using 1k-performance should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/1k-performance/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How 1k-performance Compares
| Feature / Agent | 1k-performance | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Performance optimization guidelines for OneKey React/React Native applications. Use when optimizing app performance, fixing UI freezes/lag, reducing re-renders, handling concurrent operations, or analyzing performance bottlenecks. Triggers on performance, optimization, optimize, slow, lag, freeze, hang, jank, stutter, memory, leak, concurrent, batching, batch, memoization, memo, bridge, windowSize, contentVisibility, FlashList, re-render, fps, tti, bundle.
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
SKILL.md Source
# OneKey Performance Optimization
Performance optimization patterns and best practices for React/React Native applications in the OneKey monorepo.
## Quick Reference
| Category | Key Optimization | When to Use |
|----------|------------------|-------------|
| **Concurrent Requests** | Limit to 3-5, use `executeBatched` | Multiple API calls, network-heavy operations |
| **Bridge Optimization** | Minimize crossings, batch data | React Native bridge overhead, iOS/Android |
| **List Rendering** | FlashList, windowSize={5}, content-visibility | Lists with 100+ items |
| **Memoization** | memo, useMemo, useCallback | Expensive computations, prevent re-renders |
| **Heavy Operations** | InteractionManager, setTimeout | UI blocking operations |
## Critical Performance Rules
### ❌ FORBIDDEN: Too Many Concurrent Requests
```typescript
// ❌ BAD - Can freeze UI with 15+ requests
const requests = items.map(item => fetchData(item));
await Promise.all(requests);
```
### ✅ CORRECT: Batched Execution with Concurrency Limit
```typescript
async function executeBatched<T>(
tasks: Array<() => Promise<T>>,
concurrency = 3,
): Promise<Array<PromiseSettledResult<T>>> {
const results: Array<PromiseSettledResult<T>> = [];
for (let i = 0; i < tasks.length; i += concurrency) {
const batch = tasks.slice(i, i + concurrency);
const batchResults = await Promise.allSettled(
batch.map((task) => task()),
);
results.push(...batchResults);
}
return results;
}
const tasks = items.map(item => () => fetchData(item));
await executeBatched(tasks, 3); // Max 3 concurrent
```
## 🚨 Built-in Optimizations
**Already Optimized - NO ACTION NEEDED:**
| Component | Optimization | Details |
|-----------|--------------|---------|
| `ListView` | `windowSize={5}` | Auto-limits visible items |
| `Tabs` | `contentVisibility: 'hidden'` | Hides inactive tabs |
| `Dialog` | `contentVisibility: 'hidden'` | Hides when closed |
## Detailed Guide
For comprehensive performance optimization strategies, see [performance.md](references/rules/performance.md).
Topics covered:
- Concurrent request control
- React Native bridge optimization
- Heavy operations offloading
- List rendering (windowSize, FlashList, content-visibility)
- Memoization & callbacks
- State updates optimization
- Image optimization
- Async operations & race conditions
- Real-world iOS AppHang case study
## Related Skills
- `/1k-coding-patterns` - General coding patterns and conventions
- `/1k-sentry-analysis` - Sentry error analysis (includes performance issues)
- `/react-native-best-practices` - React Native specific optimizationsRelated Skills
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