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 only states the basic action of listing, without mentioning side effects (likely read-only), ordering, pagination, or what 'concise' means in terms of tool selection. There is no statement about permissions or return format, leaving significant behavioral ambiguity.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.