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. It states the action ('List') but doesn't cover critical traits like whether this is a read-only operation, if it requires specific permissions, rate limits, pagination behavior, or what the output format looks like. This leaves significant gaps for a tool that likely involves accessing sensitive member data.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.