Does JevPlay need a TypeSafe API key, and where do requests go?

Not documented. The README gives only npm i and npm run dev and never mentions a key, an endpoint or a proxy, so whether the browser calls TypeSafe directly or through the dev server is unresolved from the documentation alone.

Can I try my own System One prompt, or only the presets?

Custom Choice, Score and Noul questions are the stated feature, with a freeform state block attached and probability distributions appearing live. How much of the System One request shape the builder exposes is not described, so expect to read the source to map the UI onto your own code.

Will the distributions here match what my own code gets back?

Unknown. The README names no model, no temperature and no settings, and says nothing about caching or repeatability. A playground curve is a UI convenience, not evidence about a production call.

Is it worth running just to learn the Jev question types?

Probably, if seeing Choice, Score and Noul side by side with distributions attached is the goal, and the setup cost is two commands. The tradeoff is that the request format is not documented, so the learning curve is steeper than the install.

What are the setup commands for JevPlay?

npm i then npm run dev. The README documents nothing else: no key, no config file, no environment variables, and no test or build step.

What language is JevPlay written in?

It is cataloged as TypeScript. The README names no framework, runtime version, or dependencies beyond the two setup commands.

Is JevPlay part of a larger set of Jev demos?

Yes. It is one of eight demos cataloged under the GitHub user ndolinschi, alongside LaneBreak, McpMatch, PulseLane, SpendBrake, SwarmRouter, ToolGate, and TrustGate.

CommunityJev Demos & Experiments

Jevplay — ndolinschi

JevPlay is a playground for TypeSafe Jev: a freeform state block plus a builder for custom Choice, Score and Noul questions, showing live probability distributions as you write them. Setup is npm i and npm run dev.

See highlights

Open github.com

Stars: 0
Language: TypeScript
Published by: Community
Author: ndolinschi
Last verified: Oct 2026

ndolinschi/jevplay

User repository on GitHub

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TypeSafe Jev playground — custom Choice/Score/Noul builder with live distributions

Forks: 0
Last pushed: Updated Sep 2026

Repo stats from the GitHub API, cached Oct 2026.Homepage

This is one of several Jev listings for the same project. The canonical entry is JevPlay — jevplay.vercel.app.

About this project

Playground for TypeSafe Jev — freeform state + custom Choice / Score / Noul builder. Invent questions, see live probability distributions.

Quoted from the project's README. Read the full README.

Tagscommunity jevbest catalog-import awesomejev

Works forJev for Classification Jev for Ranking

Used inJev for Software & DevTools

Languages: TypeScript

Highlights

Freeform state field plus a builder for custom Choice, Score and Noul questions.
Live probability distributions are shown as you invent questions.
Setup is the two commands npm i and npm run dev, and nothing else.

Watch out

The README is a short paragraph and one code block, so most of what a visitor wants is unstated: which model the playground calls, whether a TypeSafe API key is needed, whether requests go straight from the browser or through a dev-server proxy, what the state block actually changes in the response, and whether anything is persisted between sessions. No latency, cost or limits are documented. The distributions on screen are a property of the playground UI, not a measurement you can transfer to your own code. Copy reviewed against the repository README on 2026-10-04, not from running it.

Questions about this entry

Short answers drawn from the linked project or page.

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