Jev Agent Builder · Free, open-source tool
Compose a typed decision, without writing JSON.
Jev Agent Builder is a visual editor for Jev, TypeSafe AI's decision model. You describe the state and the questions in a form; the API request builds live, checked on every keystroke, ready to copy or export.
Version 0.3 · MIT license · English and French
What it does
- All three Jev question types: Choice (pick an option), Score (place on a scale), Noul (yes or no), with the API limits built in.
- {{…}} parameters you can use anywhere, so one agent works with different inputs.
- Live validation: duplicate ids, undefined or unused parameters, context limits.
- Four exports: the request, a reusable agent definition, a cURL command, a TypeScript function.
- Seven starter examples: support triage, moderation, lead qualification, product reviews, document classification, intent routing, resume screening.
- Nothing is sent anywhere: one static HTML file, your draft stays in your browser.
What it is for
Jev does not generate text. You send it a state (an email, a ticket, a JSON object) and typed questions; it returns a typed value and a probability. It is a decision step to place inside a scenario whose path is written down: above a threshold, the scenario continues; below it, a person takes over.
Writing the request by hand slows down every attempt. The builder removes that step, so the time goes to the questions themselves: well-described options, score levels that describe situations, a none_of_the_above option when nothing fits. The details, with an after-sales triage example, are in the article that introduces it.
What to know
Calling the model needs a TypeSafe key: Jev is in early access, with a waitlist. The builder never asks for that key; the cURL and TypeScript exports read it from the TYPESAFE_API_KEY variable.
Jev is mostly trained in English. Other languages, French included, are accepted with slightly lower accuracy: test on your own data before setting a threshold.
The builder is a single file, index.html. You can open it locally, fork it, or deploy it on your own GitHub Pages. Feedback and contributions are welcome on GitHub.
Unofficial tool, not affiliated with TypeSafe AI.
A repetitive decision you want a model to take?
Sort, route, rate, answer yes or no: if the same decision comes back hundreds of times a week, let's talk about the flow and the data it reads. The model comes after.
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