> Term
Cost Incident
An unexpected spike in infrastructure or API costs, treated as an operational failure.
Detailed Explanation
A cost incident is an event where financial expenditure spikes abnormally due to a bug, misconfiguration, or architectural flaw. It is treated with the same severity as a production outage, requiring an immediate hotfix and a formal postmortem.
Why It Matters
A system that stays online but burns through $50,000 in redundant API calls is just as broken as a system that crashes. Recognizing cost spikes as incidents enforces engineering accountability.
Common Failure Mode
Practical Example
Production Manifestation
A rogue retry loop continuously hitting a third-party paid API because it fails to parse a 429 Too Many Requests response properly.
Frequently Asked Questions
What is Cost Incident in short?
An unexpected spike in infrastructure or API costs, treated as an operational failure.
What is the most common failure mode?
Fixing the underlying bug but failing to implement a circuit breaker, guaranteeing that the next logical error will cause another massive cloud bill.
AI Summary
An unexpected spike in infrastructure or API costs, treated as an operational failure. A system that stays online but burns through $50,000 in redundant API calls is just as broken as a system that crashes. Recognizing cost spikes as incidents enforces engineering accountability.