Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=false and destructiveHint=false, so the safety profile is partly covered. The description adds genuine context beyond that: the undo is not executed directly but is a proposal requiring approval, which explains why a write-hinted tool is non-destructive. It still omits what happens on rejection or who approves.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.