Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It discloses that the operation sets state to complete, which is a key side effect, but it does not mention whether the operation is destructive, requires approval, is reversible, or has any other consequences. For a finalizing action, this is minimal and incomplete.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.