Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and openWorldHint=true, covering the safety profile. The description adds that the data is 'public' and comes 'from Gamma v1 data JSON', which is useful provenance, but it says nothing about rate limits, whether the upstream is a legacy v1 endpoint, or behavior on unknown addresses.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.