A FIELD GUIDE TO JEV / VOL. 01
The best of Jev. Real projects, practical guides and ideas from across the internet.
TypeSafe AI@typesafeaiOFFICIALTypeSafe highlights Jev’s typed-output approach: applications provide state and questions, then act on probabilities, choices or scores. The linked announcement also covers the Venice API integration.
x.comAnswers your code can useExplore this project ↗TypeSafe AI@typesafeaiOFFICIALTypeSafe announces public access to Jev without a waiting list. The official console is the starting point for trying typed decisions in your own application.
x.comJev opens to everyoneExplore this project ↗
Diogo Almeida@CompleteSkepticLAUNCH POSTDiogo Almeida introduces Jev, TypeSafe’s structured decision model. Watch the launch film and explore the original thread for the model’s approach, examples and author-reported performance.
TypeSafe AI@typesafeaiOFFICIALTypeSafe’s official launch announcement introduces the lab and points builders to Jev. It includes Diogo Almeida’s launch film and original introduction.
Four official signals. A fresh starting point on each visit.
714 resources
AI-assisted summaries and translations. Check original sources for context and performance claims.
DiffJury — TypeSafe Jev PR risk router + code review coach.
github.comraihankhan-rk/diffjuryExplore this project ↗Source-linked curation
Small Python package that uses typesafe.ai to evaluate code comments on certain heuristics.
github.comHexdigest123/typesafe-commentExplore this project ↗Source-linked curation
Claude Code Stop hook that blocks an unverified done: reads the transcript for evidence, asks Jev once, fails open on everything else.
github.comvalentynkit/jev-belayExplore this project ↗Source-linked curation
A pi extension that exposes TypeSafe (Jev, System One) judgments as five pi tools, so a model can make narrow semantic judgments while your code and your users keep control of thresholds, weights, and actions.
github.comlegacybridge-tech/pi-typesafe-jevExplore this project ↗Source-linked curation
Ask a yes/no question of every function in a codebase. Ranked answers in seconds, for cents. Grep whose pattern is a question, powered by TypeSafe Jev.
github.comsufianetaouil/everyExplore this project ↗Source-linked curation
Ask your Postgres tables questions in plain language. A PostgreSQL extension powered by TypeSafe's Jev.
github.comrealZachi/pg-jevExplore this project ↗Source-linked curation
Neovim plugin that asks the buffer a plain-language question: Treesitter splits it into functions, Jev scores each one, and answers land in quickfix ranked by probability.
github.comvalentynkit/jev.nvimExplore this project ↗Source-linked curation
A simple Spring Boot 4 starter for TypeSafe Jev using Spring MVC and RestClient.
github.comdanvega/jev-spring-boot-starterExplore this project ↗Source-linked curation
A small Next.js app for experimenting with TypeSafe AI's Jev model (System One).
github.comLittle-Planet-Labs/jev-playgroundExplore this project ↗Source-linked curation
Can Jev pick the winner of a real headline A/B test? 64.5% across 10,984 Upworthy randomized experiments, 74.7% when the difference was decisive.
github.comGaurav-Gosain/jev-headline-benchExplore this project ↗Source-linked curation
A research project on GitHub uses Jev with Qwen3 models on an NVIDIA DGX Spark system.
github.comabhishek085/open-spark-jevExplore this project ↗Source-linked curation
A tool controlling Ableton Live with concise commands, leveraging Jev's decision-making capabilities.
github.comokinaaudio/live-jevExplore this project ↗Source-linked curation
A React app that estimates an age range based on a Korean name, described as a developer tool.
Source-linked curation
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.
github.comxingwudao/OpenJevExplore this project ↗Source-linked curation
Agent skill: design judgment-assisted systems with TypeSafe Jev (System One). Maps Choice/Score/Noul onto decision theory, reranking, and routing. Composition algebra, question design, validation gates. MIT.
Source-linked curation
3D chess powered by TypeSafe AI (Jev). AI vs AI by default, or play either side. Multiple difficulty levels.
github.commalDuffin/typesafe-3d-chessExplore this project ↗Source-linked curation
CLI for TypeSafe AI's Jev evaluation model — typed questions in, structured JSON answers out.
github.comjtsang4/jev-cliExplore this project ↗Source-linked curation
Community .NET SDK for the TypeSafe AI System One API — typed noul, choice, and score questions with structured, confidence-scored answers. Not affiliated with TypeSafe AI.
github.comsaibimajdi/typesafeai-dotnet-sdkExplore this project ↗Source-linked curation
Go SDK for the TypeSafe AI API — typed questions in, probability distributions out.
github.comTangerg/typesafe-sdk-goExplore this project ↗Source-linked curation
Type-safe one-decision-per-token decoding engine for autoregressive LLMs, inspired by Jev.
github.comTypeAR-AI/TypeARExplore this project ↗Source-linked curation
Every code file in a pull request, judged against Uncle Bob's Clean Code by TypeSafe's Jev, then reviewed by Luna. Built on eve and Next.js.
github.comfrostney/clean-code-reviewExplore this project ↗Source-linked curation
Put your code comments on trial. Powered by Jev.
github.comntedvs/commentcopExplore this project ↗Source-linked curation
Run a JSON Schema through TypeSafe's Jev API, and get JSON back.
github.comKiln-AI/jev_jsonschemaExplore this project ↗Source-linked curation
GitHub Action for issue triage that abstains: label, spam, needs-info and duplicate in one call, each applied only above a threshold you set, and nothing at all below it.
github.comemreozyoruk/hushExplore this project ↗Source-linked curation
OpenTelemetry Collector connector that uses Jev to assess metric metadata and apply retention policies before export.
github.comishantanu/jevmetricsExplore this project ↗Source-linked curation
A Chrome extension that covers distracting YouTube videos with Jev. Show anyway whenever you want.
github.comjaibhasin/jev-yt-time-saverExplore this project ↗Source-linked curation
Nushell module for the TypeSafe System One API: typed decisions with calibrated probabilities.
github.comcablehead/jev.nuExplore this project ↗Source-linked curation
Give your Jev language.
github.comNolane-x/JEV-languageExplore this project ↗Source-linked curation
An experimental JEV-powered framework for forecasting short-term stock price direction from structured market data.
github.comsosopop/jev_stockExplore this project ↗Source-linked curation
Cut Claude Code's skill manifest by ~75% with TypeSafe Jev. Scores every installed skill for relevance and hides the rest via skillOverrides — 12,750 → 3,185 tokens on a 217-skill install, for $0.0009 a session.
github.comShivamPansuriya/jev-skill-gateExplore this project ↗Source-linked curation
Local browser automation UI that uses TypeSafe Jev to choose bounded page actions and a text model only for field values.
github.comKesavanKing/jev-browserExplore this project ↗Source-linked curation
TrustGate — indie media T&S gate via TypeSafe Jev.
github.comndolinschi/trustgateExplore this project ↗Source-linked curation
Typed semantic decisions for Unix pipelines and CI, powered by TypeSafe AI Jev.
github.comsharziki/semdecideExplore this project ↗Source-linked curation
Experimental protocol for evidence-aware agent handoffs, with Jev-assisted review before results reach the lead agent.
github.comzsoXi/agent-handoff-gateExplore this project ↗Source-linked curation
A chatbot from typed Jev decisions: hierarchical speculative decoding over System One probabilities.
github.comadhyaay-karnwal/jev-chatExplore this project ↗Source-linked curation
Blind security benchmarks for Jev, TypeSafe's System One model: prompt injection and vulnerable code detection, built on jev-go.
github.comGaurav-Gosain/jev-sec-benchExplore this project ↗Source-linked curation
看看 Jev 能做什么：用中英文讲清热门应用、工作原理和各自优缺点。Explore Jev apps with plain-language examples, explanations, and comparisons.
github.comJackZeng/Jev_appsExplore this project ↗Source-linked curation
A stronger one-pass scorer over a variable list of text options: hashed n-gram encoder, rival-aware attention, gated head, temperature scaling, benchmarked against jevlike.
github.comolanotolu/jevbetterExplore this project ↗Source-linked curation
A command-line interface for Jev that provides answers and exit codes based on input questions.
Source-linked curation
Helping JEV speak <3.
github.commkotlikov/jev-grugExplore this project ↗Source-linked curation
Minecraft mod where Jev tries to finish the game from scratch without a scripted route.
github.comHardel-DW/jev.modsExplore this project ↗Source-linked curation
Browser game: try to beat Jev at spotting a spam message.
github.comlambertsj/beatjevExplore this project ↗Source-linked curation
Calibration and confidence-based routing measured on Banking77: 80.2% accuracy at $0.103 per 500 decisions.
github.comFirasSX914/JanusExplore this project ↗Source-linked curation
LlamaIndex reranker + router powered by TypeSafe Jev — typed scores/choices, cheaper than LLM-as-judge.
github.comWiktorB2004/llama-index-jevExplore this project ↗Source-linked curation
Self-improving agent harness with an optional TypeSafe Jev companion for typed Choice, Score, and Noul judgments.
github.comwundercorp/lokiExplore this project ↗Source-linked curation
Unofficial Java SDK for TypeSafe Jev and Vercel AI Gateway, with Spring Boot and WebClient support.
github.comgudcks0305/jev-javaExplore this project ↗Source-linked curation
Claude Code plugin: trim long Bash output with TypeSafe Jev before the model sees it.
Source-linked curation
Ruby client for typesafe.ai.
github.comjoshmn/typesafe-sdkExplore this project ↗Source-linked curation
AI benchmark on Japan's 2026 Common Test: Jev vs luna-none vs luna-low (static dashboard).
github.comshibadogcap/kyotsu-ai-benchExplore this project ↗Source-linked curation
Fork of OpenPoke where the yes/no decisions go to Jev instead of Claude Sonnet, with a same-inputs A/B against the replaced LLM decision and a 43,776-request adversarial run on the injection gate.
github.com0xShin0221/openpoke-meets-jevExplore this project ↗Source-linked curation
A GitHub project converting agent skills into Oxlint plugins that involve Jev.
Source-linked curation
Utilizing Jev, the RLCD-type model provided by TypeSafe AI, to independently and cheaply judge agentic coding sessions.
github.comomni-/ask-jevExplore this project ↗Source-linked curation
A small, extensible decision-to-action harness for TypeSafe Jev.
Source-linked curation
Zero-hallucination open-source repo and crate scout powered by TypeSafe AI Jev System One scoring.
github.comAkashPriyadarshii/jev-scoutExplore this project ↗Source-linked curation
A developer project for the hardware shelf involving two-stage Jev control of a robotic arm in MuJoCo.
github.comlykycy123/RoboJEVExplore this project ↗Source-linked curation
An agent project aimed at reducing token usage for coding agents via an MCP server.
Source-linked curation
Zod validates the shape, Jev validates the meaning: semantic checks on request bodies become calibrated probabilities you threshold in code.
github.comjomatsu/zod-jevExplore this project ↗Source-linked curation
A small reproducible MuJoCo pilot comparing Jev, Claude Haiku, and reactive rules for pick-and-place.
github.comtryaksh/jev-pick-and-place-studyExplore this project ↗Source-linked curation
Semantic GitHub PR labels using Jev's typed decisions, with conceptual scope instead of line counts.
Source-linked curation
Context-pruning proxy for Claude Code and Codex: Jev judges which history is still needed, measured not claimed. POC here now, heading soon into https://github.com/compozy/compozy.
Source-linked curation
Multi-axis writing quality checker powered by TypeSafe AI's Jev model. Separate named checks, each with its own verdict and confidence.
Source-linked curation
Experimental decision protocol whose Jev adapter evaluates framed evidence with typed choices, while application code validates permissions and commits simulated demo actions.
github.comnumerous-com/dgpExplore this project ↗Source-linked curation
Vercel Labs terminal CLI that can run Jev as the evaluation model for its evaluate command.
github.comvercel-labs/ai-cliExplore this project ↗Source-linked curation
Self-hosted AI email classifier for Gmail powered by Jev. Create custom labels, organize your inbox, and filter spam with confidence and cost controls.
github.comilyamk/jev-gmail-ai-spam-filter-and-labelingExplore this project ↗Source-linked curation
jev-use (voice). A developer project implementing voice control for macOS with Jev as a fallback option.
github.comcoco-research/jev-useExplore this project ↗Source-linked curation
Replicating Jev with a local LLM.
github.comArgos1111/jev_localExplore this project ↗Source-linked curation
A curated list of awesome Jev / TypeSafe System One applications, libraries, and resources.
Source-linked curation
Benchmarks and a playground for TypeSafe's Jev (System One) model: chess, and who-is-the-player-talking-to for speech-to-text game NPCs.
github.comwondertwins/jev-benchmarkExplore this project ↗Source-linked curation
See what Jev thinks about your SaaS website — powered by ReplyNodes web context and Vercel AI Gateway.
github.comreplynodes/jev-web-analyzerExplore this project ↗Source-linked curation
A developer project integrating Jev for judgment tasks within DeepSeek Harness.
github.comHorusJiang/dsh-jev-toolsExplore this project ↗Source-linked curation
Active-learning CLI that uses human labels and GEPA to improve Jev decision definitions.
github.comsutro-sh/jev-alignExplore this project ↗Source-linked curation
River shooter game in Python, inspired by Atari's River Raid, played by a TypeSafe AI pilot.
github.comashaazami/river-run-typesafeExplore this project ↗Source-linked curation
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4 HIGHLIGHTS
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Source-linked curation
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