Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true, idempotentHint=false, and readOnlyHint=false, so the safety profile is covered by structured data. The description adds almost nothing beyond what annotations provide – no mention of downtime, whether the stop is graceful or forced, or what happens if the service is already stopped. Given the lower bar when annotations are rich, this is thin but not incorrect.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.