Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure, but it only restates the list operation. It doesn't disclose ordering, pagination, whether soft-deleted versions are included, or any permission requirements, so the agent cannot anticipate the tool's behavior beyond the literal action.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.