Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. However, the description is only 'Retrieve structure definition' and reveals nothing about side effects, permissions, rate limits, or the nature of the response. There is no indication of whether this is a read-only operation or what the output contains, leaving the agent completely in the dark.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.