Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds valuable behavioral context beyond annotations: pagination is cursor-based and newest-first, filters compose with AND, status defaults to 'ready' (excluding drafts and delisted), and the sample tier is rejected due to no per-author state. It does not describe the output shape, but an output schema exists, so that is not required. The only minor gap is not explicitly stating that the listing is read-only, but annotations cover that.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.