CCommunity contributorDemos & playgrounds

Formatho Jev Playground

Browser-based request builder for the System One API: compose state plus typed Noul, Choice, and Score questions. Mock mode runs locally without an API key; Live mode requires your TypeSafe key and calls api.typesafe.ai directly. Generates typesafe_sdk Python. Includes companion Jev Suitability Test.

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Source: community catalog. Details and metrics reflect the published community snapshot and are not a performance endorsement.

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jevplay

Demos & playgrounds

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

NMade byndolinschi0

jev-hooks

Demos & playgrounds

Compose typed Jev judgments as reactive semantic state in React and backend programs

MMade bymicrochipgnu1

jevs-sprint-planning

Demos & playgrounds

Four AI developers run a software sprint, each powered by TypeSafe's Jev model. Watch them claim tickets, code, review, deploy, and fight fires — with live probability bars, latency, and cost per decision. Bring your own API key or play demo mode free.

NMade bynotque1

skillranker

Agent tooling

Rust CLI powered by Jev from TypeSafe.ai that ranks agent skills for the next step using live session context. Includes Claude Code hooks, structured JSON, abstention, and local feedback. Requires a TypeSafe API key.

DMade byDicklesworthstone116

OpenJev

Benchmarks & research

OpenJev: an independent Jev-inspired System One decision API based on TypeSafe.ai concepts. Choice, score and noul primitives, local mock server, Python and TypeScript SDKs. Real inference planned; not affiliated with TypeSafe AI.

XMade byxingwudao5

jev-builder

Browser & computer use

A browser form for building requests to TypeSafe's Jev: pick a template, fill in the blanks, copy the request. No JSON, no install, runs locally.

CMade bycollapseindex3

Loki

Integrations

Self-improving agent harness with an optional TypeSafe Jev companion for typed Choice, Score, and Noul judgments.

WMade bywundercorp26

typesafe-sdk-go (unimtx)

SDKs & clients

Community Go SDK for the TypeSafe System One API with typed Choice, Score, and Noul questions plus retries, contexts, and structured errors.

UMade byunimtx1

prompt2jev

Agent tooling

Agent skill and CLI that turn natural language, an LLM prompt, or the code that runs one into a TypeSafe Jev decision: typed state, Choice/Score/Noul questions, and a runnable script

SMade bysumleo4