Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but only states it retrieves information without disclosing behavioral traits like authentication requirements, rate limits, error handling, or what 'detailed information' includes. It doesn't contradict annotations, but fails to provide necessary context for a read operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.