Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It indicates a read operation ('Get'), but provides no further behavioral details (e.g., permissions, rate limits, or what happens if the notification doesn't exist). The presence of an output schema partially compensates, but the description itself adds minimal transparency beyond the verb.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.