B.5.2.0:4.2 - Core shape
A conforming abductive prompt makes promptSpecies, its explanatory openQuestion, scope and motivating provenance explicit. The provenance may be carried by motivatingCueRef, witnessRefs or routeProvenance; include the applicable basis even when no routing history exists. A rendering may additionally include contrastSet and GammaTime.
A prompt is not yet a hypothesis. Prompt admission usually presupposes articulation high enough to publish a stable open question and closure low enough that rival answers remain live; those articulation and closure thresholds remain governed by C.2.4 and C.2.5, typically reached through cue or route provenance from A.16.1 and B.4.1. It is the initiating publication form that licenses entry into the abductive loop.