Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses that the operation is a read ('Get details'), which is accurate. However, it does not mention any prerequisites, error conditions, or response characteristics. It meets the basic requirement but does not go beyond.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.