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 only states that it retrieves account details, but does not mention read-only behavior, response format, rate limits, or any side effects. This is minimal and leaves the agent in the dark about operational expectations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.