Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the burden. It explains the read-only nature via 'Get' and includes behavioral details such as the default and maximum limit. It also specifies the type of records returned, but does not mention authentication, pagination, or error conditions, which would make it more transparent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.