Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds one piece of interpretive context—that discovered prose is not to be treated as executable doctrine—but omits anything about the review-status semantics it reportedly returns. With annotations carrying the burden, this is an adequate 3.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.