Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full behavioral burden. It discloses ordering (newest first) and the bank-deposit matching use case, but omits read-only status, pagination behavior, filtering semantics, and whether pending/failed payouts are included.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.