Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so the safety profile is covered. The description adds the explicit GET verb and the 'all tasks' scope, which are useful, but it does not disclose potential pagination, ordering, permissions, or whether returned tasks include scheduled/running/completed ones. No contradiction exists.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.