Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden for behavioral disclosure. It does not state whether the operation is irreversible, what prerequisites are required (e.g., field existence), or any side effects. A delete operation should at least imply irreversibility or destructive nature.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.