Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description is the only source of behavioral information. 'Return' accurately implies a read operation, but the description does not explicitly disclose read-only status, potential side effects, data source, or output characteristics other than 'information.' For a zero-parameter getter this is minimally adequate but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.