Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full behavioral burden, and it does deliver the single most important trait: permanent, irreversible deletion. It remains silent on other consequential behaviors an agent would want before calling it — whether subtasks, stories, or tag associations are cascade-deleted, what permissions are required, and what the response contains.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.