Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of behavioral disclosure. It mentions environment requirements but omits details about what happens after submission—whether it is idempotent, returns a submission ID, if resubmission is allowed, or any side effects. This is similar to the update_drive calibration example, which scored 2 for lacking such information.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.