AGENTIC_NO_TEXT_AS_IMAGE
Images whose filename suggests they carry words - text, headline, quote, copy. Text baked into an image cannot be read, quoted or acted on: an agent asked to find your pricing will not find it if the price is a JPEG. Matched on filename only, deliberately: an empty alt attribute is the CORRECT way to mark a decorative image, so counting those would flag every properly-marked illustration on the page.
Impact is importance multiplied by the confidence tier’s weight — SPECIFICATION 1.0, RESEARCH 0.7, EMERGING 0.3, EXPERIMENTAL 0.1. Two rules backed by the same class of evidence therefore always carry the same weight, which is what makes the score reproducible rather than hand-tuned.