QNL Engineering

Live demo

Plan Review

Drop a civil plan sheet PDF below. The reviewer flags common drafting issues — missing north arrow, overlapping annotation, empty title-block attributes, inconsistent abbreviations, and numbering gaps — with approximate sheet location.

Checks to run

Privacy note: in production this will render PDF pages to images in your browser, then send them to a backend that calls Claude. The current preview returns a stubbed response — nothing is sent anywhere.

Findings

Findings will appear here after you click Run review.

No PDF handy? Click Use sample to try it with a placeholder sheet.