Nine signals, all of them shown

Measures sentence length variation, over-represented phrases, paragraph uniformity, formal transition density, lexical diversity, em dash frequency, the 'not just X, but Y' construction, triadic lists and hedging density. Every signal is shown with its measured value, its weight and its known failure modes.

This measures style similarity, not authorship. No tool, including this one, can prove who or what wrote a text. Careful human writing scores high and lightly edited model output scores low. It must not be used to accuse anyone of anything.