Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already provide readOnlyHint, idempotentHint, and openWorldHint. The description adds minimal behavioral context beyond stating it produces a fictional example; it does not elaborate on side effects, authentication needs, or other traits. Since annotations cover the behavioral profile, a score of 3 is appropriate for not adding significant value.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.