Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and openWorldHint=true, so the description adds minimal behavioral context. It does not disclose what data the dashboard includes, how it is aggregated, or any limitations. A score of 2 reflects that the description does not add value beyond annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.