Your Budget Alert Won't Save You: Building a Real Cloud Spend Circuit Breaker You set up budget alerts. You get the email. You nod wisely. And then... you keep spending. The money is already gone by the time the alert arrives. Budget alerts are reactive by design. They tell you after the fact. A circuit breaker is different — it proactively interrupts the flow before spend spirals out of control. In this article, I'll show you how to build a real cloud spend circuit breaker using AWS...