Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, openWorldHint=true, and destructiveHint=false, covering the safety profile. The description adds nothing beyond that — no indication of what is checked, freshness of the result, or whether it performs a network lookup (implied by openWorldHint but unexplained).
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.