Stackblitz debug bundle
'Collect WebContainer diagnostic info: boot state, file system, process list.From its SKILL.md
npx -y skills add jeremylongshore/claude-code-plugins-plus-skills --skill stackblitz-debug-bundleAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.
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SKILL.md
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StackBlitz Debug Bundle
Overview
Collect WebContainer diagnostic info: boot state, file system, process list.
Instructions
Step 1: Check Boot State
async function diagnoseWebContainer(wc: WebContainer) {
const report: Record<string, any> = {};
// File system check
try {
const entries = await wc.fs.readdir('/');
report.filesystem = { status: 'ok', rootEntries: entries.length };
} catch (e: any) {
report.filesystem = { status: 'error', message: e.message };
}
// Node.js check
try {
const proc = await wc.spawn('node', ['-e', 'console.log(JSON.stringify({version: process.version, arch: process.arch}))']);
let output = '';
proc.output.pipeTo(new WritableStream({ write(data) { output += data; } }));
await proc.exit;
report.node = JSON.parse(output);
} catch (e: any) {
report.node = { status: 'error', message: e.message };
}
// Memory check
try {
const proc = await wc.spawn('node', ['-e', 'console.log(JSON.stringify(process.memoryUsage()))']);
let output = '';
proc.output.pipeTo(new WritableStream({ write(data) { output += data; } }));
await proc.exit;
report.memory = JSON.parse(output);
} catch { report.memory = 'unavailable'; }
return report;
}
Step 2: Check Browser Support
function checkBrowserSupport() {
return {
sharedArrayBuffer: typeof SharedArrayBuffer !== 'undefined',
crossOriginIsolated: window.crossOriginIsolated,
serviceWorker: 'serviceWorker' in navigator,
userAgent: navigator.userAgent,
};
}
Error Handling
| Check | Expected | Failed Action |
|---|---|---|
| SharedArrayBuffer | defined | Add COOP/COEP headers |
| crossOriginIsolated | true | Check all headers present |
| Node.js version | v18+ | WebContainer ships its own |
| Root FS entries | > 0 | Re-mount files |
Resources
Next Steps
For resource limits, see stackblitz-rate-limits.
What ships with it
Read from the repository
Just SKILL.md. No reference files, no scripts.