Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true Verde idempotentHint=true, so the tool is known to be a read-only, idempotent operation. The description adds useful detail on conditional outputs (e.g., connect_url when credentials missing, authenticated:true when all providers connected). It doesn't contradict annotations and provides context beyond them.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.