stackblitz-rate-limits

# StackBlitz Rate Limits ## Overview WebContainer resource limits: memory, CPU, file system size, process count. ## Instructions ### Step 1: WebContainer Resource Limits | Resource | Limit | Notes | |----------|-------|-------| | Memory | ~2GB | Shared with browser tab | | File system | Ephemeral, in-memory | Lost on page refresh | | Processes | Multiple concurrent | Each consumes memory | | Network | HTTP only | No raw TCP/UDP sockets | | npm packages | Most work | Native addons not supported | ### Step 2: Handle Memory Pressure ```typescript // Monitor memory usage inside WebContainer const proc = await wc.spawn('node', ['-e', ` setInterval(() => { const mem = process.memoryUsage(); const mbUsed = Math.round(mem.heapUsed / 1024 / 1024); if (mbUsed > 500) console.warn('High memory: ' + mbUsed + 'MB'); }, 5000); `]); ``` ### Step 3: Optimize File System Size ```typescript // Mount only essential files -- skip test files, docs, etc. const productionFiles: FileSystemTree = { 'package.json': { file: { contents: minimalPackageJson } }, src: { directory: { /* only source files */ } }, // Skip: tests/, docs/, .git/, large assets }; await wc.mount(productionFiles); ``` ## Error Handling | Issue | Cause | Solution | |-------|-------|----------| | Tab crashes | OOM | Reduce mounted files, fewer deps | | Slow npm install | Large deps | Use --prefer-offline, fewer packages | | Process killed | Memory limit | Monitor with memoryUsage() | ## Resources - ...