Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden, and it does disclose the sequential chaining behavior and the pay-per-call cost ('0.01 USDC on Base, pay-per-use'). However, it does not address output format, side effects, failure behavior, or what happens at each stage beyond the chain order.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.