Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, idempotentHint and destructiveHint=false, so the safety profile is covered. The description nonetheless adds genuine context by enumerating what will NOT happen (no installation, registration, payment, or third-party runtime side effect), which usefully separates it from join_omnidome and the settlement tools. It stops short of saying what the response actually contains.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.