A FIELD GUIDE TO JEV / VOL. 01
Das Beste von Jev: echte Projekte, praktische Anleitungen und Ideen aus dem Netz.
THE OFFICIAL SIGNAL 4 HIGHLIGHTS
Diogo Almeida@CompleteSkepticLAUNCH POSTDiogo Almeida stellt Jev vor, das strukturierte Entscheidungsmodell von TypeSafe. Schauen Sie sich den Launch-Film an und erkunden Sie den ursprünglichen Thread für den Ansatz des Modells, Beispiele und die vom Autor gemeldeten Leistungen.
TypeSafe AI@typesafeaiOFFICIALDie offizielle Launch-Ankündigung von TypeSafe stellt das Labor vor und verweist Entwickler auf Jev. Sie enthält Diogos Almeidas Launch-Film und die ursprüngliche Einführung.
TypeSafe AI@typesafeaiOFFICIALTypeSafe kündigt die öffentliche Zugänglichkeit von Jev ohne Warteliste an. Die offizielle Konsole ist der Ausgangspunkt, um typisierte Entscheidungen in Ihrer eigenen Anwendung zu testen.
JEVLAB ARTTypeSafe AI@typesafeaiOFFICIALTypeSafe betont den typisierten Ausgabeansatz von Jev: Anwendungen geben Zustand und Fragen an, dann handeln sie auf Wahrscheinlichkeiten, Auswahl oder Bewertungen. Der verknüpfte Ankündigungstext behandelt auch die Venice API-Integration.
JEVLAB ARTStart with the Launch Post. Explore four official signals.
286 Ressourcen
AI-assisted summaries and translations. Check original sources for context and performance claims.
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.
JEVLAB ART
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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.
JEVLAB ARTEnglishSource-linked curation
An agent project that enforces policies by judging Claude Code tool calls.
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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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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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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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MCP server that puts TypeSafe Jev on the coding loop in Cursor, Codex, and any MCP client.
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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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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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Jev-assisted file retrieval and request caching for faster Pi workflows.
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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.
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A prose linter that sniffs out AI writing tells. Zero dependencies, countable rules plus one judgment model.
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A Jev powered LinkedIn recruiting agent. Watch it browse relevant profiles, save links, and review evidence against your hiring brief.
JEVLAB ARTEnglishSource-linked curation
Browser automation where an LLM plans and Jev (Typesafe System One) decides. Library, CLI and MCP server.
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A developer project providing a local MCP server for running pre-made Jev question packs.
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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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Computer-Nutzung für etwa 0,0002 Dollar pro Schritt: Bildschirm scannen, nächste Aktion mit TypeSafe klassifizieren, klicken. macOS.
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A developer project for agent classification and selective reading using an agent plugin and MCP tool.
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Route to the cheapest model in claude code for your task using jev-router.
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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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Claude Code plugin: trim long Bash output with TypeSafe Jev before the model sees it.
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Per-call GPT model routing for Codex: Jev chooses model and effort, a local Responses proxy keeps the tool loop intact, then independent verification and Router Compass check whether the task still passed.
JEVLAB ARTEnglishSource-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.
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🧹 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.
JEVLAB ARTEnglishSource-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.
JEVLAB ARTEnglishSource-linked curation
Codex plugin: verbatim Jev-guided context restoration around session compaction. Port of tamaratran/fast-jev-compaction to Codex lifecycle hooks.
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Command-line tool for TypeSafe's Jev AI model.
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⚡ Ultra-fast, low-cost intelligent task classifier and 3-tier routing engine powered by TypeSafe Jev (System One).
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Turn your AGENTS.md preferences into a fast, Jev-powered AI linter.
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Go CLI and single-binary MCP server exposing TypeSafe judgments to Claude Desktop, Claude Code, and Codex.
JEVLAB ARTEnglishSource-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.
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Systematic software development framework for AI coding agents upgraded with TypeSafe Jev System One typed decisions.
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在 X 的时间线上，给每条帖子标出它想让你干什么。判断来自 Jev，一个只返回概率、不生成文本的模型。
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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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Evaluating TypeSafe's Jev as a fast monitor and action gate for agent sabotage in SHADE-Arena, compared with Gemini 2.5 Flash/Pro.
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Benchmarking Jev (Typesafe.ai) against a strong LLM on the Who&When Pro agent-failure-attribution benchmark (text subset).
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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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The first general-purpose System One agent for Jev.
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Configurable semantic linting powered by Jev, with file-level NOUL judgments and a magic-strings plugin.
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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 staged code-review workflow and local dashboard built with TypeSafe Jev.
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Cost-optimized OpenRouter model router using TypeSafe's Jev, with a live full-catalog scorer instead of a hardcoded model list.
JEVLAB ARTEnglishSource-linked curation
An awesome collection of Jev use cases, workflows, and agent skills.
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Drives a real browser with Jev making every decision and Vercel's agent-browser performing every action, with a benchmark.
JEVLAB ARTEnglishSource-linked curation
Autonomous Jev pull-request review with typed decisions, calibrated approval gates, and trusted-owner escalation.
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A developer project focused on agent memory, where Jev determines what information is relevant to recall.
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Hybrid coding harness: System 2 writes, System 1 (Jev) runs reflexes.
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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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Reward-hack radar for coding agents: structural denies + TypeSafe Jev System One sidecar for Claude Code & Cursor hooks.
JEVLAB ARTEnglishSource-linked curation
Pick the best AI model and reasoning effort for any task in ~1s. Plugin for Claude Code, Claude Desktop and Codex, powered by TypeSafe's Jev decision model and live OpenRouter pricing. Balance intelligence, speed and cost, or choose your priority.
JEVLAB ARTEnglishSource-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.
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Jev DSH 决策引擎｜面向 Agent Harness 的结构化决策插件。原生支持 DeepSeek Harness，通过 iPolloWork 支持 OpenCode、Codex Harness。
JEVLAB ARTEnglishSource-linked curation
Experimental decision protocol whose Jev adapter evaluates framed evidence with typed choices, while application code validates permissions and commits simulated demo actions.
JEVLAB ARTEnglishSource-linked curation
Jev plays browser table tennis in real time: structured telemetry, typed decisions, ordinary Chrome inputs, and auditable evidence.
JEVLAB ARTEnglishSource-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.
JEVLAB ARTEnglishSource-linked curation
Interactive TypeScript coding CLI with typed routing, decision programs, and validated formal trees driven by Jev.
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A developer project that uses Jev as a sensor to control access to agent tools, enhancing security and functionality.
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Pure Jev that can "type" and drive towards task completion.
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Browser automation with Jev (TypeSafe) as decision model.
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Data extraction for systematic reviews, quoted from the papers. Ask a trial report and its supplements your extraction form or a RoB 2, ROBINS-I, QUADAS-2 or TIDieR template; Jev points at the lines, every answer is a verbatim quote with its page, you check it and export the table. Files stay in your browser.
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Send Pi agents back to work when they stop before the job is done.
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Claude Code Stop hook that blocks an unverified done: reads the transcript for evidence, asks Jev once, fails open on everything else.
JEVLAB ARTEnglishSource-linked curation
Input moderation for Mastra agents on TypeSafe Jev — one file.
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Browser game: try to beat Jev at spotting a spam message.
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Jev-Tool-Runner is a GitHub project where Jev selects developer tools and Codex generates code based on those selections.
JEVLAB ARTEnglishSource-linked curation
Jev-powered model routing, memory, compaction, skill selection, computer and browser use for Hermes agents (also Claude Code and Codex).
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A developer project offering semantic code search for coding agents, benchmarked on SWE-bench Lite.
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Jev for Chrome: drives the tab you are looking at with TypeSafe Jev, a sub-second decision model. Community port of browser-use/jev-ultrafast, not affiliated with TypeSafe.
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A Magic 8 Ball for pull requests: click the ball and it answers "should I approve this?" with one of the 20 classic phrases, chosen by Jev from the PR's real signals in about 200 ms.
JEVLAB ARTEnglishSource-linked curation
One grounded Jev/Playwright core: typed SDK, persistent CLI, and MCP server with native browser operations and deterministic assertions.
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Audit your git diff against YAML coding-standards packs using TypeSafe's Jev model, from a CLI or your AI agent's command/skill.
JEVLAB ARTEnglishSource-linked curation
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4 HIGHLIGHTS
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Agents & browsers
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