Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, openWorldHint=true, idempotentHint=true, and destructiveHint=false. The description adds no extra behavioral context beyond what the schema provides (e.g., citing external resource id). With annotations covering the safety profile, the description meets the baseline but does not enrich transparency with details like return variability or pagination.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.