Kiroween 2026 Hackathon Entry

BugMortem – AI Incident Autopsy & Post-Mortem Studio

Forensic post-mortem investigation and automated SRE safe patterns for production outages.

Morgue Status

Incident Active (P0)

Incident Autopsy Archive

</>Side-by-Side Code Autopsy

💀Cursed Code (Production Crash)Fatal Error

// ❌ CURSED CODE: Server/Client HTML divergence
export default function Header() {
  // Rendering dynamic date directly causes hydration crash
  return (
    <div>Current time: {new Date().toLocaleTimeString()}</div>
  );
}

✨Resurrected SRE Code (Safe Pattern)Circuit Breaker

// ✅ RESURRECTED SRE PATTERN: Hydration-Safe State Mount
import { useState, useEffect } from 'react';

export default function Header() {
  const [mounted, setMounted] = useState(false);
  const [time, setTime] = useState('');

  useEffect(() => {
    setMounted(true);
    setTime(new Date().toLocaleTimeString());
  }, []);

  if (!mounted) return <div className="animate-pulse">Loading clock...</div>;
  return <div>Current time: {time}</div>;
}

>_Raw Stack Trace

Error: Hydration failed because the initial UI does not match what was rendered on the server.
    at throwOnHydrationMismatch (react-dom-client.development.js:12508)
    at tryToClaimNextHydratableInstance (react-dom-client.development.js:12534)
    at completeWork (react-dom-client.development.js:22170)

⏱Chronological Incident Timeline

12:00:01 UTCEdge server renders pre-baked SSR HTML payload

12:00:02 UTCClient browser executes hydration bundle at local millisecond mismatch

12:00:03 UTCReact throws Error #418; tearing unmounts interactive component tree

📄Official Post-Mortem Report Protocol

Executive Summary

Fatal React hydration mismatch caused by non-deterministic SSR execution.

Blast Radius & Impact

Users experienced momentary flash of unstyled content and disabled form buttons across marketing landing pages.

Preventative Action Items

Enforce useEffect guards for all browser-only dynamic attributes.
Add automated ESLint rule to flag new Date() inside server component JSX.
Deploy synthetic visual regression testing across top 50 landing pages.