Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=false, destructiveHint=false, and idempotentHint=false, so the description does not need to restate these. It adds the scope 'all sharing indexes' but does not explain side effects, runtime expectations, or whether it is safe to run concurrently. The description adds some value beyond annotations but lacks depth.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.