Which Jev Primitive Should I Use?
Choose the shape of your output and get a Choice, Score, Noul, or decomposition recommendation.
On this page
Choose by output, not by wordingCategory, level, or propositionWhen several primitives fitWhat answer does your code need?
Choose the shape of your answer to see a recommendation.
Choose by output, not by wording
A question beginning with “how” does not necessarily require a Score, and one beginning with “is” may hide several separate judgments. Identify the exact value your code needs before choosing a primitive.
Category, level, or proposition
Choice is for unordered categories. Score is for an ordered semantic rubric with 2–10 levels. Noul is the probability that one proposition is true. If the task needs generated prose or exact computation, use an LLM or code instead.
When several primitives fit
Ask atomic questions against shared state rather than forcing every decision into one field. The support tutorial uses all three because department, urgency, and refund detection are different jobs. The selector is a local teaching aid, not a model call.