Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and a closed-world scope, so the safety profile is fully covered. The description adds value beyond that by disclosing what is actually inspected (bridge liveness, active profile, signed-in account) and implicitly the local-bridge dependency; it stops short of describing failure behavior when the bridge is not running.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.