A FIELD GUIDE TO JEV / VOL. 01
The best of Jev. Real projects, practical guides and ideas from across the internet.
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.
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 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.
Four official signals. A fresh starting point on each visit.
378 resources
AI-assisted summaries and translations. Check original sources for context and performance claims.
Practical, tested recipes for TypeSafe's Jev decision model on OpenRouter: support triage, database indexing, file organizing, tagging, taxonomies, dedupe, PII detection, extraction, search re-ranking and a browser agent.
github.comnexibeo/jev-cookbookExplore this project ↗Source-linked curation
A developer project that converts vague agent requests into deterministic commands for improved reliability.
github.comNiazMorshed2007/jcrExplore this project ↗Source-linked curation
Guardrails for Pi built on pi-typesafe that steer the agent instead of interrupting you: Jev judges irreversible and off-task tool calls, detects stuck loops, checks unverified done claims, flags slop.
github.comDevMortimer/pi-wardenExplore 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
A community post discussing Jev's use in enforcing coding rules that linters cannot handle.
Source-linked curation
Calibrated alignment verifier for LLM responses and agent plans — powered by Jev.
github.comcaiovicentino/jev-alignExplore this project ↗Source-linked curation
Typed System One decisions, ranking, verification, and an opt-in Hermes tool gate using TypeSafe Jev.
github.comkeeltrace/hermes-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
Rule-based slop grader for text files powered by Jev: evaluates markdown against customizable rulesets, outputting violation flags and scores for an AI agent to auto-fix.
github.comlukstei/slop-graderExplore this project ↗Source-linked curation
Niaz MorshedAn experimental local-first plugin for coding agents that uses Jev to provide quality feedback during development.
Source-linked curation
x.comA plugin using Jev's scoring capability to remove unnecessary terminal garbage and redundant logs, improving agent performance.
Source-linked curation
Decision layer for coding agents: deterministic rules before any model call, then one Jev request, as a Claude Code PreToolUse hook, an MCP server, a loopback service and a team policy that personal overrides can tighten but not loosen. Ships the 300-call injection kit behind its own numbers.
github.comeugeniughelbur/jev-engineeringExplore this project ↗Source-linked curation
AgentRun leverages Jev for creating self-sufficient agent workflows.
Source-linked curation
PauliusA system enabling rapid agent deployment on digital canvases without relying on slow LLM processes.
Source-linked curation
Open auto mode for AI agents — a calibrated tool-call firewall powered by TypeSafe Jev. Ships as a Claude Code hook.
github.comRiskAverseTech/toolgateExplore this project ↗Source-linked curation
Real-time firewall for AI coding agents: a PreToolUse hook checks every Claude Code / Codex tool call with deterministic shell-aware rules, and unmatched actions go to Jev for a calibrated allow/ask/block that fails closed.
github.comKoushik890/jev-firewallExplore this project ↗Source-linked curation
A Chrome extension using Jev to filter out AI-generated content from YouTube, caching results for efficiency.
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
Search the web with TypeSafe's Jev: source selection, query understanding and relevance ranking. Built with Search1API.
github.comsuperagents-lab/jev-searchExplore this project ↗Source-linked curation
Hybrid coding harness: System 2 writes, System 1 (Jev) runs reflexes.
github.comAbdelStark/bicameralExplore this project ↗Source-linked curation
Per-turn model & reasoning routing for Codex, driven by Jev (TypeSafe System One): picks the model, thinking depth and speed mode for every turn.
github.com0xNatoshi/jev-codex-routerExplore this project ↗Source-linked curation
Home Assistant Assist conversation agent powered by TypeSafe's Jev (System One) model.
github.comJanOstrowka/typesafe-assistExplore 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
WXT browser extension: Jev-powered page clutter removal with reusable template rules.
Source-linked curation
A flexible and configurable CLI model router using TypeSafe Jev.
github.commarcus/frostExplore this project ↗Source-linked curation
Practical guide: playground, Python and JS SDKs, raw HTTP, and the agent skill.
ziplyne.agencyAI that does not talkExplore this project ↗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
⚡ Sub-100ms cognitive reflexes for autonomous coding agents. Powered by TypeSafe AI's Jev & get-fable.
github.comimMamdouhaboammar/fable-jevExplore this project ↗Source-linked curation
Matthew BermanA focus group experiment using Jev to make scroll or stop decisions on ads.
Source-linked curation
Reduces context usage by 30-55% through Jev-based compaction for OMP agents.
Source-linked curation
Pierre-Eliott LallemantJev analyzes outreach messages to identify signals that lead to booked demos, improving campaign performance.
Source-linked curation
Hand the browser work off: an MCP server where a decision model drives the page for your agent, so a flow costs one tool call instead of a turn per click. Ref-based element tables, code-checked assertions, zero-model macro replay. Speaks CDP to your Chrome.
github.comjiawei686/jev-ultrafast-mcpExplore this project ↗Source-linked curation
Sub-second Git pre-commit & pre-push semantic reflex gate powered by TypeSafe AI Jev.
github.comAkashPriyadarshii/jev-gitExplore 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
jaffaA content marketing tool that analyzes 12.8M viral videos to generate data-backed social media scripts.
Source-linked curation
x.comExplains Jev's role in automating decision-making processes and enabling new business models through efficient task sorting and classification.
Source-linked curation
用 TypeSafe Jev 推荐已安装 Skill / Bounded installed-skill recommendations with TypeSafe Jev. Python CLI, Codex skill, bilingual docs and live examples.
github.comwin4r/jev-skill-suggesterExplore 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
Observable browser stealth game: Jev makes typed guard judgments while deterministic code owns the world.
github.comAbdelStark/heist-oneExplore this project ↗Source-linked curation
MCP skill router where Jev picks the relevant skills instead of a long agent search.
x.comskillbox + Jev skill routingExplore this project ↗Source-linked curation
A YouTube guide explores using Jev within an agentic coding loop, focusing on cost efficiency for development tasks.
Source-linked curation
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.
github.comminiLV/Jev-Auto-RouterExplore this project ↗Source-linked curation
A Stop hook that stops your coding agent from stopping too early. Plain-language rules, judged by jev.
github.comnoplan-inc/limpetExplore this project ↗Source-linked curation
Uses Jev for real-time voice commands to control a browser, processing speech to actions in 300ms with low cost.
Source-linked curation
Jev-powered browser MCP for LLM agents — ~300ms decisions, no LLM tokens in the loop. Benchmark vs Playwright MCP included.
github.comMahmoudAdelbghany/jev-browserExplore this project ↗Source-linked curation
Minimal agent loop where Jev directs control flow and a LangChain chat model writes argument values and the final response.
github.comjvsteiner/jevexExplore this project ↗Source-linked curation
Preview of fast browser use with Jev and OpenCode's browser CLI.
x.comOpenCode browser use powered by JevExplore this project ↗Source-linked curation
Pi extension suite powered by Jev: selective context compaction and model routing.
github.comiefnaf/pi-jevExplore this project ↗Source-linked curation
A staged code-review workflow and local dashboard built with TypeSafe Jev.
Source-linked curation
Chrome extension that labels every post on X (Substance · Humor · Chit-chat · Promo · Junk · AI-written) with TypeSafe Jev, and hides the ones you don't want.
github.combohutang/siftExplore this project ↗Source-linked curation
MCP server for TypeSafe Jev: typed classify, score, check, match and screen for any agent, with confidence on every answer.
github.comblakestone-x/jev-mcpExplore this project ↗Source-linked curation
A developer project for agent classification and selective reading using an agent plugin and MCP tool.
Source-linked curation
Bounded exploratory browser testing with Jev, deterministic assertions, and replayable evidence.
github.comCorieW/JevTestExplore this project ↗Source-linked curation
A resource explaining Jev's functions, costs, and evaluation metrics as TypeSafe's System One model.
Source-linked curation
TypeSafe AI Jev judgments for Agent Zero, with typed tools and probability cards.
github.com3clyp50/a0-typesafe-aiExplore this project ↗Source-linked curation
A developer project for agents and browsers, where Jev selects actions within Codex Computer Use.
github.comyikangy873-gif/jev-desktopExplore this project ↗Source-linked curation
Write Cucumber tests with just the .feature file. No step definitions — Jev (TypeSafe AI) resolves each Gherkin step and Playwright runs it.
Source-linked curation
Non-autoregressive decision engine on ModernBERT (151M) with calibrated uncertainty (RLCD), TypeSafe AI Jev benchmark audit, and in-browser WebGPU playground.
Source-linked curation
A Brave extension that scores posts for logical fallacies in real time, highlighting well-reasoned content with a green flag.
Source-linked curation
Cost-optimized OpenRouter model router using TypeSafe's Jev, with a live full-catalog scorer instead of a hardcoded model list.
github.comlucianfialho/jev-model-routerExplore 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
Jev is integrated into tools like Noul and Score for MCP applications.
github.comandyholst/hermes-typesafe-jevExplore this project ↗Source-linked curation
Select Git changes for staging with a plain-language description.
github.comibrahemid/git-jev-stageExplore this project ↗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
Verbatim Jev-scored context reduction for omp, over TypeSafe or OpenRouter.
github.comjerryfane/omp-jev-compactionExplore 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
Codex plugin: verbatim Jev-guided context restoration around session compaction. Port of tamaratran/fast-jev-compaction to Codex lifecycle hooks.
github.comleonaaardob/fast-dev-compactionExplore this project ↗Source-linked curation
Local-first MCP plugin for continuous software-quality review by AI coding agents, powered by Jev.
github.comNiazMorshed2007/jev-reviewExplore this project ↗Source-linked curation
ClineA plugin integrates Jev with a browser in Cline, enabling it to perform web-based tasks through a desktop application.
Source-linked curation
Chrome extension that asks Jev whether the page you are on is selling something or reporting first-hand experience, and marks Google results with verdicts it already has or snippet-only estimates, leaving low-confidence ones undecided.
github.comtorumitsutake/jev-page-verdictExplore this project ↗Source-linked curation
Software Factory Foreman: an agent supervisor that uses Jev decisions to keep coding agents on task.
github.comthruwire/foremanExplore 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
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4 HIGHLIGHTS
Agents & browsers
Source-linked curation
