Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must disclose behavioral traits. It only says 'Delete', which implies a destructive action, but omits details like whether the deletion is permanent, cascading effects, permission requirements, or confirmation steps. The agent is left with minimal behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.