Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=false, destructiveHint=false, openWorldHint=true, idempotentHint=false, so the safety profile is covered. The description adds nothing beyond that — no mention of required permissions, duplicate-name behavior, or whether the call is scoped to a project or a group.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.