Simon WillisonArticle
We're going to need default hard budget caps on pretty much everything
This is the operational problem nobody's solving yet. Agents need guardrails, and token budgets alone aren't enough when a tool call costs $50 in downstream compute. If you're shipping agents to production, you need hard caps on spend, latency, and retries before your customer's bill goes sideways or the agent hammers the same endpoint into failure. This belongs in every framework's defaults, not as an afterthought.