Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, so the agent knows this is a safe read operation. The description confirms the listing behavior. No contradictions. However, it does not disclose any additional behavioral traits (e.g., whether it returns a list of strings or objects, or if any authentication is needed), but given the tool's simplicity, this is adequate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.