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 ↗
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 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 ↗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.
286 resources
AI-assisted summaries and translations. Check original sources for context and performance claims.
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
Browser game: try to beat Jev at spotting a spam message.
github.comlambertsj/beatjevExplore this project ↗Source-linked curation
Türkçe ve İngilizce doğal konuşmayla Windows 10/11 bilgisayar kontrolü: OpenAI Realtime, local Whisper, Jev, UI Automation ve Playwright.
github.commstf-svndk/jev-windows-voiceExplore this project ↗Source-linked curation
Experimental Hermes plugin: Jev-assisted model routing plans with budget and capability constraints. API access pending.
github.comussyverse/hermes-jev-routerExplore this project ↗Source-linked curation
Verbatim Jev-scored context reduction for omp, over TypeSafe or OpenRouter.
github.comjerryfane/omp-jev-compactionExplore this project ↗Source-linked curation
Jev decision layer for agents: MCP server, embeddable DecisionModel library, and an escalate-only Claude Code plugin (TypeSafe AI's Jev).
Source-linked curation
A Codex plugin that uses Jev to streamline and reduce excessive tool outputs.
Source-linked curation
Agent-ergonomic CLI for TypeSafe's Jev: fast calibrated judgments (pick, rate, check, rank, triage, guard) from the shell.
Source-linked curation
🧹 Fun project: a Chrome extension that asks a tiny AI decision model (TypeSafe Jev) "is this DOM element an ad?" and pops it off the page. BYOK, no backend, not a real ad blocker.
github.comrealZachi/typesafe-adblockExplore this project ↗Source-linked curation
A calibrated context sieve for Claude Code: every tool result is judged by a System One model before it enters context.
Source-linked curation
5–10x faster browser operations: Jev clicks, Codex thinks and verifies. Built at EZCollegeApp.
Source-linked curation
A GitHub project enabling voice-controlled Mac automation without vision models.
github.comsavka777/jev-useExplore this project ↗Source-linked curation
A developer project that uses Jev as a sensor to control access to agent tools, enhancing security and functionality.
Source-linked curation
Grok skill: Jev as a judgment sensor in a builder-agent loop (priors × probabilities → next act).
github.comrainbowpuffpuff/jev-builder-loopExplore this project ↗Source-linked curation
A developer project for automatic context clearing in Pi without losing conversation history.
Source-linked curation
MCP server exposing TypeSafe Jev as typed, calibrated judgment tools: classify, score, check, batched ask. Ships as a Claude Code plugin.
github.comrashedInt32/jev-mcpExplore this project ↗Source-linked curation
RuneBench harness for TypeSafe's Jev: bounded action catalog, tick-mode controller and a live dashboard.
github.comSkyvern-AI/jevscapeExplore this project ↗Source-linked curation
PiJev: a terminal coding agent with Jev in the loop — Jev ranks the repository's files before the first call, picks skills and triages failures; your coding model writes the code. Built on Pi.
github.comtonyzdev/pijevExplore this project ↗Source-linked curation
Automated database migration safety reviewer powered by TypeSafe AI (Jev System One model).
github.comopaielsheikh/typesafe-migration-guardExplore this project ↗Source-linked curation
Agent Skill: send closed coding-agent judgments to TypeSafe Jev.
Source-linked curation
Pi extension: verbatim context compaction with TypeSafe Jev decisions.
github.comjoelhooks/pi-fast-jev-compactionExplore this project ↗Source-linked curation
TypeSafe AI (Jev) adversarial reviewer and typesafe_ask tool for the omp coding agent.
github.comsiddicky/omp-typesafeExplore this project ↗Source-linked curation
JevArena — two Jev agents duel in click-only browser games (Browser Use + TypeSafe Jev).
github.comraihankhan-rk/jevarenaExplore this project ↗Source-linked curation
Pre-commit hook: one Jev call judges whether your commit message matches the staged diff, plus debug leftovers, unmentioned work, and a credential check.
github.comvalentynkit/jev-commitExplore this project ↗Source-linked curation
DGUI-HyperMem (DeckerGUI HyperMemory) - self-hosted hybrid memory MCP server on Cloudflare Workers with a JEV (Choice/Noul/Score) reasoning layer and a HuggingFace training-brain flywheel.
github.comctaxnagomi/dgui-hypermemExplore this project ↗Source-linked curation
Skill for Hermes, and other agents, to ask typesafe's jev.
github.comshantanugoel/ask-jev-skillExplore this project ↗Source-linked curation
A developer project providing a second MCP server for Jev from the PyModel initiative.
github.comPyModel/typesafe-mcpExplore this project ↗Source-linked curation
Route tasks to research/code/browser/support/writer agents via TypeSafe Jev.
github.comndolinschi/swarmrouterExplore this project ↗Source-linked curation
Claude Code plugin that scores how well you prompt a coding agent, and shows whether your habits are improving. Runs on TypeSafe's Jev model. Zero added latency.
github.comCrowdLinker/JevPromptCoachExplore this project ↗Source-linked curation
WXT browser extension: Jev-powered page clutter removal with reusable template rules.
Source-linked curation
Personal-assistant agent built on Vercel's eve with 100 mocked tools, measuring how many steps it takes when Jev picks the tool versus the LLM.
github.comvinilana/jev-eval-agentExplore this project ↗Source-linked curation
JEV-inspired parallel decisions for CUDA LLMs. One context, many decisions. vLLM API, game-agent examples, and reproducible benchmarks.
github.comkikoncuo/jevfireExplore this project ↗Source-linked curation
Flue agent routing with TypeSafe Jev through Cloudflare AI Gateway.
github.commatthewp/flue-jev-demoExplore this project ↗Source-linked curation
Parallel web search for terminals and agents, with local Chromium and Jev-guided exploration.
github.comkomikat/psearchExplore this project ↗Source-linked curation
Open-source Chrome extension that filters AI-generated prose and ads with Jev.
github.comneddes/sloppy-jevs-extensionExplore this project ↗Source-linked curation
Semantic MCP firewall powered by Jev — screens every tool call, tool result, and tool description with calibrated System One verification. 94% block recall, 0 false positives, ~$0.00002/check.
github.comcaiovicentino/jev-shieldExplore this project ↗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
Per-prompt capability router for coding agents: resolves installed skills, MCP servers, agents and commands against your prompt via TypeSafe Jev, and measures whether the injection actually helps.
github.combestagentkits/jev-skillfulExplore this project ↗Source-linked curation
A developer project where Jev assists in browsing by selecting actions, with an LLM planning and citing sources.
Source-linked curation
Every tool call your agent makes, checked before it runs. A Claude Code plugin that uses TypeSafe AI's Jev to verify each pending tool call against the session plan, then allows it, asks you, or blocks it. Proof of concept.
github.comgetexcited/stepwardenExplore this project ↗Source-linked curation
Hybrid coding harness: System 2 writes, System 1 (Jev) runs reflexes.
github.comAbdelStark/bicameralExplore this project ↗Source-linked curation
Evaluating TypeSafe's Jev as a fast monitor and action gate for agent sabotage in SHADE-Arena, compared with Gemini 2.5 Flash/Pro.
github.comnican2018/shade-arena-jev-monitorExplore this project ↗Source-linked curation
Almond-fastloop: Almond's browser computer-use rig (Chrome DevTools + TypeSafe Jev), and the Browser Use Olympics benchmark it is measured on.
github.comeriestra/almond-fastloopExplore this project ↗Source-linked curation
TypeSafe Jev as a decision layer for the Pi coding agent: a measured tool-call gate plus jev_ask for typed, calibrated answers.
github.comy0usaf/pi-jevExplore this project ↗Source-linked curation
Cost-aware LLM router that picks the cheapest model capable of handling a query, using TypeSafe's Jev for fast classification instead of an LLM call.
github.comrajdhakad9826/jev-routerExplore this project ↗Source-linked curation
Vercel's open agent framework, which ships Jev as the default evaluation model in its experimental evaluate path.
Source-linked curation
TypeScript browser agent for ego lite: Jev Ultrafast indexed actions, TypeSafe Jev decisions, persistent observe/act CLI. No Chrome or Playwright.
github.comromaluev/jev-egoExplore this project ↗Source-linked curation
Claude Code Stop hook that checks an AI assistant's claims against what it actually read this session, using TypeSafe's Jev as the judge.
github.comVladyslavHontar/clear-headExplore this project ↗Source-linked curation
Runtime constraints for the pi coding agent: checks every side-effecting tool call against what you said, before it runs. Powered by TypeSafe Jev.
Source-linked curation
What your last session knew, scored against what this one is doing. MCP server: a per-project ledger written as things happen, recalled per task with TypeSafe's Jev evaluation model via Vercel AI Gateway.
github.comDharundp6/jev-carryforwardExplore this project ↗Source-linked curation
Jev-powered model-judged permission gate for OMP (TypeSafe System One).
github.comSTRML/omp-jevens-classifierExplore this project ↗Source-linked curation
Fast Rust CLI for TypeSafe Jev: typed decisions, offline linting before you pay.
Source-linked curation
Configurable semantic linting powered by Jev, with file-level NOUL judgments and a magic-strings plugin.
github.comhuntedman/JevLintExplore this project ↗Source-linked curation
Jev-powered semantic browser use.
github.comsightmap/jev-turboExplore this project ↗Source-linked curation
100% free ₹0 agent-first SEO & GEO CLI suite and MCP server in Rust replacing Semrush and OpenSEO via DuckDuckGo and TypeSafe Jev System One.
Source-linked curation
Chrome-devtools-mcp plus one tool: Jev walks the browser to the right spot, then your agent makes a single devtools call there.
github.comrashedInt32/jev-reachExplore this project ↗Source-linked curation
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.
Source-linked curation
A CLI and GitHub Action that assesses code-change risk using deterministic rules and TypeSafe Jev, recommending checks and reviewers before merge.
github.commoezubair/check-riskExplore this project ↗Source-linked curation
Jev (TypeSafe System One) backed auto mode for the Pi coding agent: semantically auto-approves bash, write, and edit tool calls and fails closed when a decision cannot be made.
github.comjomatsu/pi-jev-auto-modeExplore this project ↗Source-linked curation
Non-Autoregressive AI Agent Decision Model. Open-source SOTA alternative to TypeSafe Jev. O(1) Tool Routing & DOM Automation on Qwen3.5-2B .
github.commkeco/Cerebellum-2BExplore this project ↗Source-linked curation
Chrome extension that re-ranks Google results with TypeSafe Jev and folds away sales pages and SEO filler.
github.comtylergibbs1/siftExplore this project ↗Source-linked curation
Claude Code plugin: trim long Bash output with TypeSafe Jev before the model sees it.
Source-linked curation
A guide-directed World of Warcraft agent designed to reduce expenses as it runs longer, developed on GitHub.
github.comchalkychalk42/jevExplore this project ↗Source-linked curation
Play ten browser games from the screen with a 0.8B open model that returns a probability over the game's legal moves in one forward pass, no text generated.
github.comOmniJev/PlayJevExplore this project ↗Source-linked curation
Autonomous PlayStation 2 AI Agent with real-time visual telemetry HUD powered by TypeSafe Jev System One.
github.comopaielsheikh/ps2-ai-agentExplore this project ↗Source-linked curation
Draw on a tldraw canvas with your voice and a pointing finger. Jev (TypeSafe System One) decides action, target and place in ~350 ms per spoken word.
github.comgaborishka/jev-canvasExplore this project ↗Source-linked curation
Dependency-free CLI and Codex skill that send local state to Jev for batched typed judgments and return answers without echoing the state.
github.comohmyjiro/jev-judgeExplore this project ↗Source-linked curation
Desktop GUI for agentic coding that routes tasks across local agents and accounts, with Jev picking the best agent per task, running basic code-review checks, and supplying context.
github.comJackalope-Dev/jackalopeExplore this project ↗Source-linked curation
Hybrid browser harness: an LLM turns goals into verifiable subgoals, Jev chooses each action and DOM field, Playwright acts.
github.comvinilana/jev-browserExplore this project ↗Source-linked curation
A tool ranking Pi agent skills for specific tasks using Jev's evaluation capabilities.
github.comsafzanpirani/pi-jev-skill-pickerExplore this project ↗Source-linked curation
Open-source native computer use for macOS and Windows: TypeSafe Jev, local OCR, and selective planning.
github.comNobleSpartan6/ottoExplore this project ↗Source-linked curation
Calibrated alignment verifier for LLM responses and agent plans — powered by Jev.
github.comcaiovicentino/jev-alignExplore this project ↗Source-linked curation
Submit a find
한국어
日本語
Español
Français
Deutsch
简体中文
繁體中文
Português
Bahasa Indonesia
ไทย
Italiano
Tiếng Việt
Türkçe
Polski
Русский
4 HIGHLIGHTS
Agents & browsers
Source-linked curation