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 states the outcome ('access URL will return 404 after deletion'), which is useful, but fails to mention critical aspects like whether deletion is permanent, requires specific permissions, has rate limits, or what happens to associated data (e.g., payments). This leaves significant gaps for a destructive operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.