Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, and the description aligns with those by purely reporting state. The description adds useful behavioral detail beyond annotations: exact return conditions such as authenticated:true, empty pending[], and connect_url for toolkit/install-level URLs.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.