Comment by viccis

Cache TTL will get you anyway. For Claude subscriptions, subagents still have a 5m TTL and before I discovered that, their constant waits for ~10 min tests or similar tasks would destroy my 5h usage. And for my API subscription at work, Claude has a 5m TTL for all stuff, and that's nowhere near long enough. You have to be monitoring this unless you want to absolutely torch your company's budget.