Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full behavioral burden. 'Soft-delete' is a genuinely valuable disclosure that the record is not permanently destroyed, but the description says nothing about permissions required, whether the deletion is reversible/restorable, or side effects on associated slides.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.