Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It only states that it gets details, but does not disclose the response structure, error behavior, required permissions, or that it is a read-only operation. The presence of an output schema is not referenced, leaving the agent without insight into what 'details' entails beyond the schema.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.