Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true and idempotentHint=true, so the agent knows it is destructive. However, the description adds nothing beyond that—it does not disclose what happens to associated calendars, appointments, or whether deletion is reversible. With annotations covering the basic safety profile, the description should add context like cascading effects, which it fails to do.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.