Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations at all, the description carries the full behavioral burden. It does disclose the most important trait for a destructive operation — permanence/irreversibility — but says nothing about authorization requirements, whether associated responses are also destroyed, or what the call returns on success or failure.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.