Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of disclosing behavior. It only indicates a retrieval operation, but does not mention any side effects, required permissions, rate limits, or the structure of the returned bundle. This leaves significant behavioral ambiguity 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.