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 says 'Export all employees' education records,' which implies a read-only retrieval but does not explain output format, pagination, authentication requirements, or lack of side effects. The minimal wording leaves the agent to infer expected behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.