Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations provide readOnlyHint=false, idempotentHint=false, destructiveHint=false. The description adds that it does not change the node's owner, which is useful context. However, it does not disclose side effects, whether the dismissal is reversible, or if any further actions are triggered. For a write operation, more transparency is expected.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.