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typesafe-jev-ruby

Zero-dependency Ruby gem for Jev with immutable Noul, Choice and Score question objects and a one-shot evaluate facade.

LibrarybetaMIT
View on GitHub ↗

Overview

typesafe-jev is an MIT-licensed Ruby client for Jev with no runtime dependencies beyond the standard library, so it works in plain Ruby and Rails. Typesafe::Jev.evaluate is a one-shot facade pinned to jev-latest; Typesafe::Client allows other models.

Questions are frozen, immutable value objects; the question id is the hash key in the questions map rather than part of the object. Noul returns a probability, Choice returns an option, full distribution and confidence, and Score returns a level, a legend, the distribution and confidence. Usage such as input tokens is exposed. It is published on RubyGems with CI. Questions are frozen value objects, so the same question definitions can be reused safely across requests, and the evaluate facade reports usage such as input tokens.

What the decision model decides

TypeQuestionAnswers
Yes / noDoes the customer request a refund?yes · no
ChoiceWhich category does this ticket belong to?billing · technical · sales
ScoreHow severe is this ticket?Low: routine request · Medium: degraded experience · High: blocked user · Critical: money lost or security issue

How it works

  1. gem install typesafe-jev.
  2. Call Typesafe::Jev.evaluate with state and questions.
  3. Read noul, choice, probabilities or score.
  4. Act in Ruby or Rails code.

Strengths

  • No runtime dependencies.
  • Immutable question objects.
  • Usage reporting.

Caveats

  • Requires a TypeSafe key.
  • Community gem.

Getting started

gem install typesafe-jev

At a glance

Type
Library
Status
beta
Language
Ruby
Runtime
library (gem)
Has code
yes
Has tests
yes
License
MIT

Use cases and integrations

How curated lists describe it

  • Ruby client for Jev, TypeSafe's System One model: typed questions, probabilistic answers. Zero runtime dependencies.

    logicrw/awesome-jev-projects

Frequently asked questions

Does it work with Rails?

Yes, it is pure Ruby and works in plain Ruby and Rails.

How do I use a model other than jev-latest?

Use Typesafe::Client directly.

Where is the question id?

It is the key in the questions hash, not part of the question object.

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