An AI design review agent runs a multi-step workflow against engineering data and produces a result a reviewer can act on. A rules-based checker runs deterministic rule checks inside the design environment and flags violations against the configured rule set. AutoReview is an AI agent. It reads native CAD data and 2D drawings, applies the team's standards, runs multi-step checks in a single pass, and produces markups with citations. DFMXpress, ModelCHECK, and NX Check-Mate are rules-based checkers. They catch what they have been configured to catch, nothing beyond.