Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so safety is covered. The description adds genuine value beyond that by disclosing the composition of the returned records (applied vs. failed vs. undone proposals), which matters because no output schema exists. It does not discuss volume, pagination, or retention windows.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.