Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but only states what the tool returns, not behavioral traits. It doesn't disclose whether this is a safe read operation, permission requirements, rate limits, error conditions, or response format details. The description is functional but lacks transparency about how the tool behaves.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.