Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate readOnlyHint, openWorldHint, idempotentHint, so no destructive actions. The description adds that it accepts model identifiers or output samples and returns structured bias metrics and amplification trends, aligning with annotations and providing useful context beyond them.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.