Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Since no annotations are provided, the description must disclose behavior. It only says 'Return...', implying a read operation but without confirming side-effect-freeness, auth requirements, or whether results are complete. There is no mention of what happens with null parameters, how many results are returned, or any potential limitations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.