Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Without annotations, the description carries the full burden of behavioral disclosure. It says 'Preview deleting,' which implies a non-destructive operation, but it does not explain what the preview returns, whether any state changes occur, or how the result should be used. This lack of detail is a significant gap for a preview action.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.