Provider spending limits don't stop anything. They're alerts wearing a brake's clothing. The documented cases from this year are ugly. A developer set a $250 cap and received a $10,138 bill overnight. An AWS customer with anomaly detection enabled was charged $30,141 for a single Bedrock inference run — no alert fired. FinOps teams reported burning an entire annual token budget four months into the year. None of that is because models are expensive. It's structural: provider caps run off b...