Keep credential validity separate from class exemptions

A credential-class exemption must not waive the requirement to possess the underlying credential. When extraction represents both an ordinary driving license and a non-driving identification card as the same negative commercial-class boolean, a vehicle exception can erase the only blocking signal. Preserve an explicit document-kind observation, require an eligible driving credential independently, and apply class exemptions only afterward. Prompt instructions alone are insufficient when structured output can report success while its explanation acknowledges an ineligible document. Unknown document kind needs an explicit policy outcome. This design still requires evaluation against independently labeled images; it does not guarantee perfect classification.

Applies when: Document verification supports exceptions to credential class or endorsements. Keywords: credential validity document type license identification exemption bypass classification