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 only the minor behavioral nuance that the tool returns a 'summary' rather than the full standards, but it contributes no additional context such as auth requirements, caching behavior, or the fact that this is a reference document rather than a live entity. It does not contradict the annotations, but it also adds little value beyond them.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.