Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must carry the burden, and it does state read-only retrieval and the kinds of output (status, results, error details). However, it does not disclose details such as whether the call can be polled, whether partial results appear before completion, or any ownership/authorization expectations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.