Compose typed Jev judgments as reactive semantic state in React and backend programs
Demos and playgrounds — page 3
Small projects that show one Jev primitive with the least amount of code. Good for a first run.
74 active projects in this collection. All collections →
JevPolicy is an open-source TypeScript decision runtime that turns probabilistic judgments from Jev, accessed through Vercel AI Gateway, into versioned, deterministic, replayable, observable application decisions.
Give your Jev language, i'm not finish now
A WebGL demo where you play the card game Speed against a CPU whose brain is TypeSafe AI's Jev. The whole point of the app is to measure and show Jev's decision speed and decision accuracy in real time.
Next.js UI showing off TypeSafe's System One model (Jev) — parallel Noul judgments and a Choice-based citation checker, deployable to Vercel
CartShield — SMB checkout fraud disposition via TypeSafe Jev
Twelve members. Zero qualifications. A playful TypeSafe AI council with animated votes, inspectable decisions, and shareable verdicts.
Judge agent steps — ok / retry / escalate / stop via TypeSafe Jev
HireSignal — resume first-pass fit+interview via TypeSafe Jev
Typesafe/Jev public X demo
Jev Gamecast: replay-first React app that asks Jev typed questions about live sports data.
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同じ発言を jev と LLM の両方に判定させ、感情の変動値のズレと応答速度を1画面で見比べるデモ（affectus + Vercel AI Gateway）
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Job Risk Analyzer: CLI and REST API that uses Jev to score an occupation's exposure to AI-driven layoffs and its resilience.
Typesafe/Jev public X demo
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TypeSafe Jev playground — custom Choice/Score/Noul builder with live distributions
LaneBreak — support ticket priority+routing via TypeSafe Jev
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Match user goals to MCP catalog (two-stage) via TypeSafe Jev
PulseLane — clinic triage decisions via TypeSafe Jev
A test project based on Jev AI, the goal is to build a search function for a blog/article website that has 100s of articles to search from, So the user can actually use the search as chat to question anything and find related answers/articles
Agent budget brake — continue / downgrade_model / stop via TypeSafe Jev
Route tasks to research/code/browser/support/writer agents via TypeSafe Jev
TrustGate — indie media T&S gate via TypeSafe Jev
Diffusion-style pixel art out of a general classifier (TypeSafe Jev): 256 parallel pixel questions + refinement passes
Interactive explorer and Jev question workspace for Jev Board datasets.