Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, so the safety profile is fully covered and the bar is lower. The description adds genuine context that results are paginated and scoped to an owned project, but says nothing about defaults, page-size ceilings, ordering when unspecified, or error behavior for unknown columns.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.