Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnly, idempotent, non-destructive, openWorld, so the safety profile is covered. The word "Poll" usefully implies an async job that must be re-checked, but the description never says what states are possible, whether it can still be running, or how completion is signaled.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.