Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, which cover the safety profile. The description adds no new behavioral traits beyond restating the list action; it doesn't mention pagination behavior, default limit, or any side effects. With annotations carrying the main risk disclosure, the description adds minimal value.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.