A FIELD GUIDE TO JEV / VOL. 01

SMALL
DECISIONS.
BIG
POSSIBILITIES.

The best of Jev. Real projects, practical guides and ideas from across the internet.

1,262resources16languages
TypeSafe AI THE OFFICIAL SIGNAL 4 HIGHLIGHTS
Diogo Almeida@CompleteSkepticLAUNCH POST

The Jev launch post

Diogo Almeida introduces Jev, a structured decision model from TypeSafe. This resource provides an overview of the model's core approach, practical examples, and performance metrics as reported by the author.

Start with the Launch Post. Explore four official signals.

1,262 resources

AI-assisted summaries and translations. Check original sources for context and performance claims.

TRANSLATED
Jiaqi Gu

jev-skill-router

This project demonstrates an implementation of Jev for intelligent skill routing within an agent-based architecture. It showcases how community-driven development patterns can be applied to manage task distribution and decision-making processes in autonomous systems.

jev-skill-router
Decisions & routing简体中文

Source-linked curation

vercel

eve

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

eve
Agents & browsersEnglish

TypeSafe AIJev HOLDFIT 43%CAT 50%

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Astropulse

Pixel Art Iterative Refinement

This project demonstrates a workflow for generating pixel art by utilizing a sketch-and-refine loop. It showcases how Jev and DeepSeek can be integrated to iteratively improve digital illustrations through automated feedback cycles.

Pixel Art Iterative Refinement
Creative & growthEnglish

Source-linked curation

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vogel

Character-Level Text Generation with Jev

This project demonstrates a text generation system built on Jev. It utilizes a classifier within an autoregressive loop to produce output one character at a time, showcasing a granular approach to language modeling.

Character-Level Text Generation with Jev
Tools & appsEnglish

Source-linked curation

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Nyarlathoteppppp

pi-heed

pi-heed provides runtime constraints for the pi coding agent. It demonstrates a safety mechanism that verifies side-effecting tool calls against user intent before execution, utilizing TypeSafe Jev to enhance operational control during automated coding tasks.

pi-heed
Agents & browsersEnglish

Source-linked curation

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Elvis

News matching for brands

This project demonstrates an automated system designed to analyze news articles and suggest relevant content for brands. The creator claims the tool provides an efficient and cost-effective method for identifying media opportunities.

News matching for brands
Markets & experimentsEnglish

Source-linked curation

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Zaious

jev-capability-atlas

This repository provides an evidence-based map of Jev performance, utilizing actual API-call receipts to document operational successes and failures. It serves as a practical resource for understanding system reliability through empirical data rather than leaderboard rankings.

jev-capability-atlas
Research & dataEnglish

Source-linked curation

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Shivam Chauhan

Manhattan pathfinding

This experiment evaluates Jev's performance in solving pathfinding tasks by comparing its output against traditional A* algorithm results. It serves as a practical demonstration of how Jev handles grid-based navigation problems in a controlled environment.

Manhattan pathfinding
Tools & appsEnglish

Source-linked curation

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YouWare

YouWare résumé screener

YouWare is a recruitment tool designed to automate the evaluation of job applications. The developer claims the system can process 360 résumés in under 25 seconds while providing automated scoring for candidates.

YouWare résumé screener
Tools & appsEnglish

Source-linked curation

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www.langchain.com

Building a harness with Jev

This guide demonstrates how to integrate Jev into LangChain workflows to route requests between different models. It specifically focuses on implementing safety measures to identify and block potentially risky tool calls during execution.

Building a harness with Jev
Decisions & routingEnglish

Source-linked curation

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Szymon Chmal

Flappy Apex Autonomous Gameplay

This demonstration showcases Jev playing Flappy Apex independently. The creator claims the agent achieves high scores autonomously by utilizing Appduct and Fable frameworks to navigate the game environment without manual input.

Flappy Apex Autonomous Gameplay
Games & real timeEnglish

Source-linked curation

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backmeupplz

jev_antispam_bot

This project demonstrates a minimal Telegram anti-spam bot built using the grammY framework and TypeSafe Jev. It serves as a practical example of implementing automated moderation tools within the Jev ecosystem.

jev_antispam_bot
Tools & appsEnglish

Source-linked curation

madewithjev.com

What is Jev?

A resource explaining Jev's capabilities, limitations, and applications as a System One model.

What is Jev?
Tools & appsEnglish

TypeSafe AIJev HOLDFIT 65%CAT 94%

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Vansitha

Jev's Dojo fighting coach

This community-driven project utilizes Jev to analyze and refine combat techniques. It serves as a digital training assistant for players looking to improve their performance through systematic feedback on fighting mechanics.

Jev's Dojo fighting coach
Games & real timeEnglish

Source-linked curation

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github.com

typesafe-jev-examples

This repository provides runnable examples for implementing Jev using OpenRouter. It serves as a practical resource for developers looking to integrate type-safe decision-making workflows into their applications through direct, hands-on code demonstrations.

typesafe-jev-examples
Decisions & routingEnglish

Source-linked curation

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Mnimiy

A draft quality gate

This project explores using Jev as an automated quality gate for draft content. The author reports challenges regarding system communication and integration, highlighting the practical difficulties of implementing AI-driven editorial oversight in a writing workflow.

A draft quality gate
Tools & appsEnglish

Source-linked curation

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dev.to

Practical Guide to Jev System One

This guide provides developers with a technical overview of implementing the Jev System One model. It outlines practical integration steps and usage patterns for leveraging TypeSafe's architecture in software development workflows.

Practical Guide to Jev System One
Tools & appsEnglish

Source-linked curation

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Ian Nuttall

Reply-Guy Filter

This community tool uses Jev to automatically identify and filter unwanted reply-guy comments on social platforms. It demonstrates a practical application of automated content moderation to improve user interaction quality by filtering specific types of unsolicited responses.

Tools & appsEnglish

TypeSafe AIJev HOLDFIT 53%CAT 73%

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nshkrdotcom

typesafe_sdk

This library provides an idiomatic, type-safe Elixir port of the TypeScript AI SDK. It enables unified LLM integrations, streaming text, structured outputs, and tool calling, while supporting agentic workflows using the Jev model.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Start hereEnglish

Source-linked curation

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www.youtube.com

Building Applications with Jev

This video guide demonstrates how to utilize the Jev architecture to construct various software applications. It provides a practical overview of the development workflow and capabilities available within the Jev ecosystem for creators.

Building Applications with Jev
Tools & appsEnglish

TypeSafe AIJev HOLDFIT 42%CAT 49%

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Chizi

Jevton Simulation

This project showcases a virtual town simulation where Jev autonomously manages 120 residents and local infrastructure. The creator demonstrates how automated decision-making systems can govern complex community interactions within a digital environment.

Jevton Simulation
Games & real timeEnglish

Source-linked curation

model-clis

jev CLI

A command-line interface for Jev that provides answers and exit codes based on input questions.

jev CLI
Tools & appsEnglish

TypeSafe AIJev HOLDFIT 63%CAT 83%

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AkashPriyadarshii

jev-superpowers

This framework provides a structured approach for AI coding agents to utilize TypeSafe Jev System One for typed decision-making. It demonstrates how developers can integrate formal type safety into automated software development workflows.

jev-superpowers
Agents & browsersEnglish

Source-linked curation

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Alex Nikolic

openjev on Qwen 4B

This project features an MLP trained on the Qwen 4B model to provide a typesafe alternative to Jev. It demonstrates how specialized architectural training can be applied to existing language models to achieve specific functional parity.

Tools & appsEnglish

TypeSafe AIJev HOLDFIT 23%CAT 65%

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Seth Thompson

Search a physical library

This project demonstrates the application of Jev to facilitate rapid searching within physical library indexes. It explores how semantic search techniques can be utilized to navigate and retrieve information from traditional, non-digital cataloging systems.

Search a physical library
Research & dataEnglish

Source-linked curation

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Andy Gao

Voice-controlled Mac interaction with Jev

This project demonstrates a voice-controlled interface for macOS using Jev. It aims to facilitate rapid computer interaction through spoken commands, showcasing a practical application of agentic workflows for desktop navigation and task execution.

Agents & browsersEnglish

TypeSafe AIJev HOLDFIT 59%CAT 44%

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CJ (Coding Garden)

Jev-Powered Chat Bot Without LLMs

This project demonstrates a chat bot built with Jev that operates without a large language model. It provides immediate responses by directly integrating external tools like web search, Wikipedia, and weather data services.

Tools & appsEnglish

TypeSafe AIJev HOLDFIT 63%CAT 92%

tontoko

jev-browser (tontoko)

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

jev-browser (tontoko)
Agents & browsersEnglish

TypeSafe AIJev HOLDFIT 66%CAT 91%

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wang2

jev-review-action

This GitHub Action utilizes Jev to automate the triage and classification of pull requests. It demonstrates how developers can integrate automated decision-making workflows directly into their repository management processes to streamline code review tasks.

jev-review-action
Decisions & routingEnglish

Source-linked curation

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C.H Lee

Korean Name Age Estimator

This React-based developer tool attempts to predict age ranges associated with specific Korean names. It functions as an experimental utility for analyzing naming trends and demographic patterns within the Korean language context.

Korean Name Age Estimator
Tools & appsEnglish

Source-linked curation

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www.youtube.com

Understanding Jev Capabilities

This resource explores Jev, a system designed for natural language processing that utilizes structured outputs and confidence scoring. It clarifies that Jev functions differently from traditional large language models, highlighting specific operational trade-offs for developers.

Understanding Jev Capabilities
Tools & appsEnglish

TypeSafe AIJev HOLDFIT 50%CAT 68%

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Anshu Chimala

Jevinci

Jevinci is a developer tool that generates digital paintings by applying Jev pixel probability calculations. This project demonstrates how algorithmic probability models can be utilized to create visual art compositions within a programmatic framework.

Jevinci
Tools & appsEnglish

Source-linked curation

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Anshu

Drawing, one decision at a time

This experiment explores pixel-level image generation by utilizing parallel decision-making processes. It demonstrates a novel approach to constructing digital visuals through iterative, granular choices rather than traditional rendering methods.

Tools & appsEnglish

TypeSafe AIJev HOLDFIT 20%CAT 74%

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Ira Bodnar

Jev SEO and GEO Workflows

This resource demonstrates seven automated workflows for Jev, focusing on search engine and geographic optimization. It covers practical tasks like competitor page analysis, citation likelihood assessment, and content optimization strategies for digital marketing professionals.

Agents & browsersEnglish

TypeSafe AIJev HOLDFIT 53%CAT 56%

LAB PICKTypeSafe AIOFFICIALTRANSLATED
Diogo Almeida

The Jev launch post

Diogo Almeida introduces Jev, a structured decision model from TypeSafe. This resource provides an overview of the model's core approach, practical examples, and performance metrics as reported by the author.

Start hereEnglish

TypeSafe AIJev PASSFIT 78%CAT 95%

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Lomesh Dutta

Skill Router for Claude Code

This open-source project introduces a routing mechanism for Claude Code. It demonstrates how to prioritize frequently used skills through Jev integration to improve task selection efficiency.

Skill Router for Claude Code
Decisions & routingEnglish

Source-linked curation

compozy

yoshi

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.

yoshi
Agents & browsersEnglish

TypeSafe AIJev HOLDFIT 53%CAT 27%

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Box

Incident Triage with Jev at Box

This resource demonstrates how Box utilizes Jev to automate incident triage. It shows the system processing inputs to return boolean classification results alongside associated probability scores for improved operational decision-making.

Incident Triage with Jev at Box
Decisions & routingEnglish

Source-linked curation

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www.youtube.com

Understanding Jev and Jevons Paradox

This podcast segment explores the conceptual link between Jevons paradox and the funding model behind TypeSafe AI. It provides an overview of how these economic principles relate to the development and sustainability of modern artificial intelligence projects.

Understanding Jev and Jevons Paradox
Tools & appsEnglish

TypeSafe AIJev HOLDFIT 19%CAT 75%

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Wayne Sutton

askjev.ai Platform Overview

askjev.ai is a platform where users submit inquiries to Jev. The system is designed to provide evaluative judgments on topics rather than offering direct, factual answers to user questions.

Tools & appsEnglish

TypeSafe AIJev HOLDFIT 42%CAT 76%

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trungdq88

jev-tetris

This project features a real-time Tetris implementation where Jev-based agents compete against other AI models. It demonstrates game logic integration and multi-agent interaction within a competitive environment.

jev-tetris
Games & real timeEnglish

Source-linked curation

TypeSafe AIOFFICIALTRANSLATED
TypeSafe AITypeSafe AITypeSafe AI

TypeSafe AI Skill Suggestion Cookbook

This official TypeSafe resource provides a structured guide for implementing skill suggestion mechanisms within AI agents. It demonstrates how to dynamically recommend relevant capabilities to users to enhance interaction efficiency and task completion.

TypeSafe AI Skill Suggestion Cookbook
Agents & browsersEnglish

TypeSafe AIJev HOLDFIT 92%CAT 26%

brnyxx

jev-ra

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

jev-ra
Agents & browsersEnglish

TypeSafe AIJev PASSFIT 72%CAT 100%

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dbreunig

building-with-jev-skill

This repository provides a skill set for developers to write and refine programs that interact with Jev, the System One model from TypeSafe. It serves as a practical guide for integrating model calls into software workflows.

building-with-jev-skill
Agents & browsersEnglish

Source-linked curation

TRANSLATED
𝘼𝙈𝘼𝙂𝙄

Bluesky Emotion Feed

This project demonstrates a live Bluesky feed integrated with real-time emotion detection. It showcases an experimental approach to social media interaction by automatically matching user avatars to the detected sentiment of their posts.

Bluesky Emotion Feed
Creative & growthEnglish

Source-linked curation

TRANSLATED
ego

Ego Lite Shopping Agent

This demonstration showcases an agent utilizing Ego Lite and Jev to perform rapid product evaluations. The creator claims the system completes twenty distinct shopping assessments in under four seconds.

Ego Lite Shopping Agent
Agents & browsersEnglish

Source-linked curation

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droidrun

mobile-jev

This project provides a standalone Android agent framework where Jev handles decision-making processes. It includes a live React studio environment and demonstrates automated interaction capabilities through an Uber-themed application demo.

mobile-jev
Agents & browsersEnglish

Source-linked curation

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Kun Chen

compact-adviser

This agent plugin utilizes Jev to identify optimal moments for session compaction. It aims to assist developers in managing context more efficiently by providing automated guidance on when to consolidate session data.

compact-adviser
Agents & browsersEnglish

Source-linked curation

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moritzkremb

jev-voice-browser

This project demonstrates a voice-controlled web browser using Jev to interpret user intent. It integrates with Playwright to execute navigation commands, aiming for low-latency interaction by processing spoken input to trigger browser actions in real time.

jev-voice-browser
Agents & browsersEnglish

Source-linked curation

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OmniJev

PlayJev

PlayJev demonstrates a 0.8B parameter model capable of playing ten browser games. The system operates by calculating move probabilities in a single forward pass without generating text, showcasing a specialized approach to game-playing agents.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Agents & browsersEnglish

Source-linked curation

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sgoedecke

system-one

This repository provides a method for batched single-token choice inference designed for open language models. It demonstrates integration compatibility with TypeSafe, offering a structured approach to handling token-level decision processes in generative AI workflows.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

Source-linked curation