Apply FireCrawl advanced debugging techniques for hard-to-diagnose issues. Use when standard troubleshooting fails, investigating complex race conditions, or preparing evidence bundles for FireCrawl support escalation. Trigger with phrases like "firecrawl hard bug", "firecrawl mystery error", "firecrawl impossible to debug", "difficult firecrawl issue", "firecrawl deep debug".
Install with Tessl CLI
npx tessl i github:jeremylongshore/claude-code-plugins-plus-skills --skill firecrawl-advanced-troubleshooting78
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npx tessl skill review --optimize ./path/to/skillValidation for skill structure
Deep debugging techniques for complex FireCrawl issues that resist standard troubleshooting.
#!/bin/bash
# advanced-firecrawl-debug.sh
BUNDLE="firecrawl-advanced-debug-$(date +%Y%m%d-%H%M%S)"
mkdir -p "$BUNDLE"/{logs,metrics,network,config,traces}
# 1. Extended logs (1 hour window)
kubectl logs -l app=firecrawl-integration --since=1h > "$BUNDLE/logs/pods.log"
journalctl -u firecrawl-service --since "1 hour ago" > "$BUNDLE/logs/system.log"
# 2. Metrics dump
curl -s localhost:9090/api/v1/query?query=firecrawl_requests_total > "$BUNDLE/metrics/requests.json"
curl -s localhost:9090/api/v1/query?query=firecrawl_errors_total > "$BUNDLE/metrics/errors.json"
# 3. Network capture (30 seconds)
timeout 30 tcpdump -i any port 443 -w "$BUNDLE/network/capture.pcap" &
# 4. Distributed traces
curl -s localhost:16686/api/traces?service=firecrawl > "$BUNDLE/traces/jaeger.json"
# 5. Configuration state
kubectl get cm firecrawl-config -o yaml > "$BUNDLE/config/configmap.yaml"
kubectl get secret firecrawl-secrets -o yaml > "$BUNDLE/config/secrets-redacted.yaml"
tar -czf "$BUNDLE.tar.gz" "$BUNDLE"
echo "Advanced debug bundle: $BUNDLE.tar.gz"// Test each layer independently
async function diagnoseFireCrawlIssue(): Promise<DiagnosisReport> {
const results: DiagnosisResult[] = [];
// Layer 1: Network connectivity
results.push(await testNetworkConnectivity());
// Layer 2: DNS resolution
results.push(await testDNSResolution('api.firecrawl.com'));
// Layer 3: TLS handshake
results.push(await testTLSHandshake('api.firecrawl.com'));
// Layer 4: Authentication
results.push(await testAuthentication());
// Layer 5: API response
results.push(await testAPIResponse());
// Layer 6: Response parsing
results.push(await testResponseParsing());
return { results, firstFailure: results.find(r => !r.success) };
}// Strip down to absolute minimum
async function minimalRepro(): Promise<void> {
// 1. Fresh client, no customization
const client = new FireCrawlClient({
apiKey: process.env.FIRECRAWL_API_KEY!,
});
// 2. Simplest possible call
try {
const result = await client.ping();
console.log('Ping successful:', result);
} catch (error) {
console.error('Ping failed:', {
message: error.message,
code: error.code,
stack: error.stack,
});
}
}class TimingAnalyzer {
private timings: Map<string, number[]> = new Map();
async measure<T>(label: string, fn: () => Promise<T>): Promise<T> {
const start = performance.now();
try {
return await fn();
} finally {
const duration = performance.now() - start;
const existing = this.timings.get(label) || [];
existing.push(duration);
this.timings.set(label, existing);
}
}
report(): TimingReport {
const report: TimingReport = {};
for (const [label, times] of this.timings) {
report[label] = {
count: times.length,
min: Math.min(...times),
max: Math.max(...times),
avg: times.reduce((a, b) => a + b, 0) / times.length,
p95: this.percentile(times, 95),
};
}
return report;
}
}// Detect memory leaks in FireCrawl client usage
const heapUsed: number[] = [];
setInterval(() => {
const usage = process.memoryUsage();
heapUsed.push(usage.heapUsed);
// Alert on sustained growth
if (heapUsed.length > 60) { // 1 hour at 1/min
const trend = heapUsed[59] - heapUsed[0];
if (trend > 100 * 1024 * 1024) { // 100MB growth
console.warn('Potential memory leak in firecrawl integration');
}
}
}, 60000);// Detect concurrent access issues
class FireCrawlConcurrencyChecker {
private inProgress: Set<string> = new Set();
async execute<T>(key: string, fn: () => Promise<T>): Promise<T> {
if (this.inProgress.has(key)) {
console.warn(`Concurrent access detected for ${key}`);
}
this.inProgress.add(key);
try {
return await fn();
} finally {
this.inProgress.delete(key);
}
}
}## FireCrawl Support Escalation
**Severity:** P[1-4]
**Request ID:** [from error response]
**Timestamp:** [ISO 8601]
### Issue Summary
[One paragraph description]
### Steps to Reproduce
1. [Step 1]
2. [Step 2]
### Expected vs Actual
- Expected: [behavior]
- Actual: [behavior]
### Evidence Attached
- [ ] Debug bundle (firecrawl-advanced-debug-*.tar.gz)
- [ ] Minimal reproduction code
- [ ] Timing analysis
- [ ] Network capture (if relevant)
### Workarounds Attempted
1. [Workaround 1] - Result: [outcome]
2. [Workaround 2] - Result: [outcome]Run the comprehensive debug script to gather all relevant data.
Test each layer independently to identify the failure point.
Strip down to the simplest failing case.
Use the support template with all collected evidence.
| Issue | Cause | Solution |
|---|---|---|
| Can't reproduce | Race condition | Add timing analysis |
| Intermittent failure | Timing-dependent | Increase sample size |
| No useful logs | Missing instrumentation | Add debug logging |
| Memory growth | Resource leak | Use heap profiling |
# Test each layer in sequence
curl -v https://api.firecrawl.com/health 2>&1 | grep -E "(Connected|TLS|HTTP)"For load testing, see firecrawl-load-scale.
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