Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, so safety is covered; the description adds genuinely useful semantics for the outcome states (complete/rolled_back/needs_attention) and the escalation path for needs_attention. It does not address idempotentHint=false or listing limits, keeping it below 5.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.