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 correctly identifies this as a destructive operation ('Delete') and explicitly warns about irreversibility ('This action cannot be undone'), which is crucial context. However, it doesn't mention permission requirements, side effects, error conditions, or what happens to associated resources, leaving significant behavioral gaps.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.