Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of disclosing side effects. It clearly states 'The agent is NOT deleted,' which is the most critical behavioral trait for a preview operation. It also communicates the expected call-order behavior. It does not detail what the preview output contains, but the non-destructive guarantee is strongly disclosed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.