Working definition: the degree to which a vendor's candidacy survives the successive gates of an evaluation process — surfacing, screening, comparison, validation, final recommendation — and the degree to which a recommendation, once formed, survives paraphrase, re-sampling, model updates, and adversarial follow-up questions.
Status honesty: this is a founder-coined term whose precise, measurable definition is still being developed alongside M-1. It is listed so the vocabulary is never load-bearing while undefined.