Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already disclose readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds that it lists tasks tied to a root, but it doesn't clarify return structure, pagination, or recursion depth. Consistent with annotations, but adds limited behavioral context 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.