Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must disclose behavioral traits. It only states the action 'List', implying a read-only operation, but does not mention authentication requirements, rate limits, or any other side effects. This is insufficient for an agent to understand the tool's implications.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.