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 that the tool returns order details, product info, and delivery status, which reveals a read-only behavior. However, it doesn't mention potential errors (e.g., order not found), authentication needs, or side effects. This is adequate for a simple status check but not exhaustive.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.