Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of behavioral disclosure. It only names the core action and does not mention side effects, whether the player must be online, permission requirements, idempotency, or what happens if the player is not currently an operator.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.