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 only states the action and target, but does not disclose what happens if the window is already minimized, if no matching window is found, whether exact title matching is required, or whether minimizing by application affects all windows of that app. These are important behaviors for the agent to predict the outcome.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.