The separation between payment approval and task escrow points to a useful product rule: sell a bounded job before building the full agent stack. Define the input, output, price, evidence, and refund condition for one request. Charge before runtime. A paid request gives you a real signal about which outcome matters and where the buyer needs proof. After a few deliveries, compare the requests and keep the steps that repeat. Those steps are the right candidates for automation; the exceptions should stay visible. This keeps payment, work evidence, and automation from being confused, while turning an agent idea into a service you can improve from actual demand.