Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already cover read-only/idempotent safety, and the description adds real value beyond them: the auth gate (signed-in Printdash account, otherwise the customer is prompted to sign in), that values reflect how the site resolves them, and that artwork may still be changeable. Return shape is left to the output schema, which is appropriate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.