Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses that the tool fetches a single ticket's detail, which is the core behavior, but does not describe error handling, response contents, or any read-only guarantee. It is concise and truthful but lacks additional behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.