Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must carry the behavioral disclosure burden. It implies the data is curated ('verified facts') but does not state whether the operation is read-only, how the data is returned, or any limitations. The description adds little beyond content categories, leaving safety and execution behavior opaque.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.