Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=true, so the safety profile is covered. The description adds only that the data is 'live', which hints at freshness but says nothing about rate limits, caching, error behavior, or what happens with an invalid/expired search-result id.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.