Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must fully disclose behavior. It states 'metadata only', indicating a safe, non-destructive read operation. However, it does not mention authentication requirements, permissions, any side effects, or pagination behavior (the 'top' parameter hints at pagination). The description is minimal but not misleading.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.