Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must carry the behavioral disclosure. It does reveal what gets destroyed ('inventory row... including all bottles counted in its quantity'), which is valuable. However, it omits other behavioral details such as irreversibility, permission requirements, or any cascading effects beyond the quantity.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.