The Jev launch post
Diogo 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.
A FIELD GUIDE TO JEV / VOL. 01
Das Beste von Jev: echte Projekte, praktische Anleitungen und Ideen aus dem Netz.
Diogo 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 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 useProjekt ansehen ↗TypeSafe 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 everyoneProjekt ansehen ↗TypeSafe’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 Ressourcen
AI-assisted summaries and translations. Check original sources for context and performance claims.
Plugin für Claude Code, der Zusammenfassungen durch Jev-Entscheidungen ersetzt. Jeder Werkzeugaufruf und das Ergebnis werden in einem schnellen Antrag bewertet, veraltete werden gelöscht oder abgeschnitten, alles andere bleibt unverändert.

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Ultra-schneller Browser-Agent: Jev wählt in einer Anfrage die Operation und das DOM-Element aus; ein kleines LLM schreibt nur Text, wenn das Tippen erforderlich ist.

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Non-autoregressive decision engine on ModernBERT (151M) with calibrated uncertainty (RLCD), TypeSafe AI Jev benchmark audit, and in-browser WebGPU playground.

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Runtime constraints for the pi coding agent: checks every side-effecting tool call against what you said, before it runs. Powered by TypeSafe Jev.

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Agent-ergonomic CLI for TypeSafe's Jev: fast calibrated judgments (pick, rate, check, rank, triage, guard) from the shell.

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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.

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Go CLI and single-binary MCP server exposing TypeSafe judgments to Claude Desktop, Claude Code, and Codex.

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Browser use for coding agents, 3-5x faster than browser-use. MCP server + CLI; TypeSafe Jev decides every step in ~300 ms.

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Write Cucumber tests with just the .feature file. No step definitions — Jev (TypeSafe AI) resolves each Gherkin step and Playwright runs it.

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Jev decision layer for agents: MCP server, embeddable DecisionModel library, and an escalate-only Claude Code plugin (TypeSafe AI's Jev).

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A developer project for agent classification and selective reading using an agent plugin and MCP tool.

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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.

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Systematic software development framework for AI coding agents upgraded with TypeSafe Jev System One typed decisions.

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Fast Rust CLI for TypeSafe Jev: typed decisions, offline linting before you pay.

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Proof of concept MCP for Typesafe's new Jev AI model.

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An agent project that enforces policies by judging Claude Code tool calls.

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A developer project for agent-native routing that selects models based on task complexity.

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Browser automation where an LLM plans and Jev (Typesafe System One) decides. Library, CLI and MCP server.

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Vercel's open agent framework, which ships Jev as the default evaluation model in its experimental evaluate path.

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One grounded Jev/Playwright core: typed SDK, persistent CLI, and MCP server with native browser operations and deterministic assertions.

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Computer use for about $0.0002 a step: OCR the screen, classify the next action with TypeSafe, click. macOS.

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A Codex plugin that uses Jev to streamline and reduce excessive tool outputs.

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A developer project using Jev for plain-language MCP tool calls without an LLM.

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Route to the cheapest model in claude code for your task using jev-router.

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A developer project providing a local MCP server for running pre-made Jev question packs.

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A developer project for the agents shelf featuring a local MCP gateway with Jev tool discovery and a dashboard.

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Control a real browser by voice. Jev (TypeSafe System One) decides intent + target in ~300 ms per spoken word; Playwright acts — often before you finish the sentence.

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A developer project demonstrates Jev's rapid response to browser tasks, with decisions made in approximately 100 milliseconds.

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Jev-Tool-Runner is a GitHub project where Jev selects developer tools and Codex generates code based on those selections.

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A moderation system for Mastra agents that processes inputs in a single file.

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Claude Code plugin: trim long Bash output with TypeSafe Jev before the model sees it.

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Scans a codebase for covert, deceptive, or data-stealing behavior with Jev, then reports suspicious files and line ranges before the user runs it.

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A deterministic model routing system for coding agents with a skill for Codex.

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Standalone Android agent for Mobilerun where Jev makes every decision, with a live React studio and an Uber demo.

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Typesafe's jev as a "fuzzy linter". give your code an ocular patdown.

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Fast structured Android control loops with TypeSafe Jev and Mobile MCP.

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A developer project offering semantic code search for coding agents, benchmarked on SWE-bench Lite.

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WXT browser extension: Jev-powered page clutter removal with reusable template rules.

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Agent Skill: send closed coding-agent judgments to TypeSafe Jev.

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A staged code-review workflow and local dashboard built with TypeSafe Jev.

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A developer project providing a second MCP server for Jev from the PyModel initiative.
github.comPyModel/typesafe-mcpProjekt ansehen ↗Source-linked curation
Autonomous PlayStation 2 AI Agent with real-time visual telemetry HUD powered by TypeSafe Jev System One.
github.comopaielsheikh/ps2-ai-agentProjekt ansehen ↗Source-linked curation
Experimental Hermes plugin: Jev-assisted model routing plans with budget and capability constraints. API access pending.
github.comussyverse/hermes-jev-routerProjekt ansehen ↗Source-linked curation
Claude Code mod that routes decisions to TypeSafe's Jev model: ranks installed skills per prompt, and answers the agent's own this-or-that questions when confident.
github.comBeLazy167/typesafe-modProjekt ansehen ↗Source-linked curation
Connect TypeSafe Jev to Grok Bot as a cheap decision layer - usage gates, skill template, examples.
github.comBodila51/grok-bot-jevProjekt ansehen ↗Source-linked curation
Command-line tool for TypeSafe's Jev AI model.
github.comNasrallah-AL/jev-cliProjekt ansehen ↗Source-linked curation
A tool ranking Pi agent skills for specific tasks using Jev's evaluation capabilities.
github.comsafzanpirani/pi-jev-skill-pickerProjekt ansehen ↗Source-linked curation
A developer project integrating Jev for judgment tasks within DeepSeek Harness.
github.comHorusJiang/dsh-jev-toolsProjekt ansehen ↗Source-linked curation
Privacy-first Chrome extension that semantically blocks native ads, sponsored feed cards, and video ads using TypeSafe Jev.
github.comvmendes90/jev-shieldProjekt ansehen ↗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-skillfulProjekt ansehen ↗Source-linked curation
A GitHub project converting agent skills into Oxlint plugins that involve Jev.

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Fast semantic code search & diff sanity auditor for AI coding assistants (Antigravity, Cursor, Claude Code) powered by TypeSafe System One.
github.comgreenyamao/Antigravity-mcp-semantic-search-with-TypeSafeAiProjekt ansehen ↗Source-linked curation
Context curator for Pi agent using Jev technology.

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INSTRUCT_JEV - TypeSafe AI Jev / System One instruction corpus (choice/noul/score), compiled by DeckerGUI. 119 rows. Mirrored on HuggingFace.
github.comctaxnagomi/instruct-jevProjekt ansehen ↗Source-linked curation
An agent skill to discover TypeSafe Jev opportunities, design typed questions, and learn from recent community experiments.
github.comaltryne/jevifyProjekt ansehen ↗Source-linked curation
A Chrome extension that covers distracting YouTube videos with Jev. Show anyway whenever you want.
github.comjaibhasin/jev-yt-time-saverProjekt ansehen ↗Source-linked curation
Stops AI coding agents from claiming work is done without evidence. Deterministic hooks decide, TypeSafe's Jev advises. Append-only ledger, zero runtime dependencies.
github.comqkal/CannyProjekt ansehen ↗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-hypermemProjekt ansehen ↗Source-linked curation
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.
github.comcollapseindex/jev-builderProjekt ansehen ↗Source-linked curation
Judge agent steps — ok / retry / escalate / stop via TypeSafe Jev.
github.comndolinschi/harnessjudgeProjekt ansehen ↗Source-linked curation
Reproducible Jev Ultrafast research-browser eval harness + field note (QC’d cases, suite runner, report generator). Not investment advice.
github.comjgridifier/jev-research-evalProjekt ansehen ↗Source-linked curation
AskJev — Jev autopilot for any website + guard on irreversible clicks (TypeSafe System One, not Claude).
github.comranjan2829/AskJevProjekt ansehen ↗Source-linked curation
Interactive TypeScript coding CLI with typed routing, decision programs, and validated formal trees driven by Jev.
github.comrhighs/jev-codeProjekt ansehen ↗Source-linked curation
Daf-jev: composable Python toolkit for TypeSafe's Jev (System One) decision API — question builders, confidence gates, evaluator, calibration, CLI, MCP server, agent skill.

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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-commitProjekt ansehen ↗Source-linked curation
TypeSafe Jev (System One) decision tools for Hermes Agent: jev_check / jev_route / jev_score / jev_evaluate.
github.comajensenwaud/hermes-jev-pluginProjekt ansehen ↗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-2BProjekt ansehen ↗Source-linked curation
TypeSafe Jev plays original Civilization II in a browser, with live action probabilities. Experimental full-game harness.
github.comphyous/tsai-civ2Projekt ansehen ↗Source-linked curation
CLI that uses Jev to catch AI slop in UI, copy, and agent instructions before ship (probabilities on semantic taste checks).
github.commblode/taste-lintProjekt ansehen ↗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-canvasProjekt ansehen ↗Source-linked curation
A developer project where Jev filters tool results before model processing, aiming to improve efficiency in agent systems.
github.comAstro-Han/jev-harnessProjekt ansehen ↗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-judgeProjekt ansehen ↗Source-linked curation