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PrimitivesNoul questionYes/no question

Noul

The yes/no primitive: one probability from 0 to 1, where the value is the answer and no separate confidence is returned.

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Category
Primitives
Also known as
Noul question, Yes/no question
Related terms
6
Directory entries
6
Docs
docs.typesafe.ai
Added
2026-09-24

Definition

A Noul asks whether a statement is true and returns the probability that the answer is yes. Near 1 is a strong yes, near 0 a strong no, and near 0.5 means the model gives yes and no equal probability. It is not a degree scale, so it does not measure how much or how strongly.

Optional criteria.true and criteria.false descriptions pin down subtle boundaries. Ask one question per Noul, threshold in code — 0.5 when either error is equally easy to act on, higher when a false yes is expensive — and treat middle values as a natural hand-off to a person.

Tagsprimitivesclassification

Related terms

Definitions that connect to this one.

ChoicePick one option from a set you define; returns the selected option, a probability for every option, and confidence.PrimitivesScoreRate the state against 2 to 10 ordered levels; returns a probability-weighted position, per-level probabilities, and confidence.PrimitivesNoul criteriaOptional true and false descriptions that define what a yes and a no mean for a Noul question.PrimitivesNoul probabilityThe single 0-1 value a Noul returns: the probability that the answer is yes, with no separate confidence field.Answers & ConfidenceThresholdThe value your code compares against a score, a Noul probability, or a confidence to turn an answer into an action.Answers & ConfidenceUncertainty bandA middle range of probabilities, such as 0.30 to 0.70, that maps to an explicit uncertain outcome instead of a hard yes or no.Answers & Confidence

From the directory

Noul
The yes/no primitive: one probability from 0 to 1, where the value is the answer and no separate confidence is needed. True and false criteria pin down subtle boundaries.
Practices & PatternsDocs#official#primitives#noul
Official
Primitives: Choice, Score & Noul
The three TypeSafe question types, the typed answers they return, how to choose between them, and how to ask several in a single call.
Practices & PatternsDocs#official#primitives#choice
Official
Crowdcheck
Test a social post on 10,000 simulated AI readers with their own jobs, tastes, and memories before the real internet sees it.
Tools & IntegrationsPlayground#community#playground#social-media
Community
Jev Playground (Formatho)
A browser builder for System One requests: define state plus Noul, Choice, and Score questions, preview mock distributions, and generate Python typesafe_sdk code.
Tools & IntegrationsPlayground#community#playground#sdk
Community
Ship Pile
Describe the startup you are looking for and Jev ranks the pile, asking once per startup whether it is a fit.
Tools & IntegrationsPlayground#community#playground#search
Community
Hollow Creek
A first-person village where NPCs remember what you do and Jev decides how they treat you, with a board of 21 outcomes to earn before nightfall.
Cookbooks & DemosPlayground#community#playground#games
Community

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Jev is cool not because it re-invented classification, but because it makes ARBITRARY classification into a type-safe programmable primitive. A general purpose zero shot decision model whose native interface is RUNTIME-DEFINED typed decisions, optimized for that exact interface

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cocktail peanut
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