Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, openWorldHint=true, and destructiveHint=false. The description adds that results affect equipment-adjusted valuations, which is useful context. However, it doesn't describe return format, pagination, or rate limits, and the output schema exists to cover returns.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.