Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is known. The description adds useful behavioral context: a 55-second timeout and the terminal/approval state criterion. It does not, however, explain what happens on timeout (e.g., whether it returns partial statuses or throws an error), which would be a small additional gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.