Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds the notion of 'live-offered' seasons (availability/currency), which is useful context, but says nothing further about pagination, coverage limits, or what a season actually resolves to.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.