Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and idempotentHint=true, so the safety profile is covered. The description adds useful context about tone ('warm') and sourcing ('source-grounded'), but it does not describe the answer format, citation behavior, or any limitations. This is meaningful but not extensive additional disclosure.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.