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
carlsonchik

judging-with-typesafe

This project provides a skill for Letta agents to perform criteria-based evaluations using the TypeSafe System One framework. It demonstrates how to integrate Jev-based logic for structured decision-making processes within agentic workflows.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Tools & appsEnglish

Source-linked curation

TRANSLATED
William Prout

Jev Magic 8 Ball

This project demonstrates a playful application of Jev technology to generate randomized responses to user inquiries. It functions as a digital novelty tool, showcasing how Jev can be integrated into interactive, decision-making interfaces for casual entertainment purposes.

Jev Magic 8 Ball
Tools & appsEnglish

Source-linked curation

TRANSLATED
blakestone-x

jev-mcp

This MCP server integrates TypeSafe Jev capabilities into agent workflows. It provides structured methods for classifying, scoring, and screening data, aiming to deliver verifiable confidence levels for each automated response generated by the system.

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

Source-linked curation

TRANSLATED
Adrián Mato 🐙

Switch between manual and AI play

This gaming project demonstrates a mechanism for toggling between manual control and AI-driven gameplay. It showcases how Jev can be integrated into interactive environments to facilitate real-time transitions between human input and automated agent decision-making.

Switch between manual and AI play
Games & real timeEnglish

Source-linked curation

TRANSLATED
x.com

Jev as an Agent Control Layer

This community discussion explores the potential of Jev to function as a high-speed, cost-effective decision-making layer for AI agents. It proposes that integrating Jev could streamline agentic workflows by providing a lightweight control mechanism for complex task execution.

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

Source-linked curation

TRANSLATED
skeptrunedev

jev-recruiter

This project demonstrates a Jev-powered agent designed to automate LinkedIn recruitment tasks. It showcases the agent browsing professional profiles, saving relevant links, and evaluating candidates based on specific hiring criteria provided by the user.

jev-recruiter
Agents & browsersEnglish

Source-linked curation

TRANSLATED
hope

jeval

This research project investigates the practical utility of Jev confidence scores during task execution. It provides a framework for developers to assess how these metrics correlate with model performance in real-world scenarios.

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

Source-linked curation

TRANSLATED
shiftynick

jev-axi

This command-line interface tool enables users to perform calibrated judgments like ranking, rating, and triaging directly from the shell. It demonstrates an agent-ergonomic approach to interacting with TypeSafe Jev workflows for streamlined data processing.

jev-axi
Agents & browsersEnglish

Source-linked curation

TypeSafe AIOFFICIALTRANSLATED
TypeSafe AITypeSafe AITypeSafe AI

Line-by-line search

This official TypeSafe AI reference guide demonstrates how to implement line-by-line semantic search functionality. It provides developers with the necessary patterns to perform precise text retrieval within structured datasets.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Start hereEnglish

TypeSafe AIJev HOLDFIT 90%CAT 34%

TRANSLATED
maybern-tripp-smith

fedjev-bench

This project provides a benchmarking framework for market analysis using Jev. It demonstrates how developers can structure data-driven evaluations within the Jev ecosystem to assess specific financial modeling tasks.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Markets & experimentsEnglish

Source-linked curation

TRANSLATED
chalkychalk42

Jev leveling agent

This project features a guide-directed agent for World of Warcraft. The creator claims the system is designed to optimize and reduce in-game expenses as the agent continues to operate over extended periods of time.

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

Source-linked curation

TRANSLATED
vercel-labs

ai-cli

This command-line interface tool by Vercel Labs enables developers to interact with AI models directly in the terminal. It demonstrates how to integrate Jev as an evaluation model for automated performance testing and quality assessment tasks.

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

Source-linked curation

TRANSLATED
juancamiloqhz

roverlab

roverlab is a 3D planetary rover simulation environment. It serves as a sandbox for developers to experiment with autonomous decision-making processes using TypeSafe AI frameworks within a virtual extraterrestrial terrain.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Games & real timeEnglish

Source-linked curation

TRANSLATED
Idan Levin

Jev on the WebMCP benchmark

This resource showcases Jev performance on the WebMCP benchmark. The creator claims the system achieved full task success while reducing model costs through optimized tool selection and argument generation strategies compared to alternative agentic frameworks.

Jev on the WebMCP benchmark
Agents & browsersEnglish

Source-linked curation

TRANSLATED
doeixd

jev-pref

This tool converts AGENTS.md preference files into a Jev-powered linter. It demonstrates a method for automating the validation of agent configurations by leveraging Jev architecture to enforce defined behavioral standards during the development process.

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

Source-linked curation

hyperspaceai

jevcache

A decision cache for TypeSafe Jev-class models — memoize decisions so repeats are free, deterministic, and shareable. One 2 MB binary.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Tools & appsEnglish

TypeSafe AIJev HOLDFIT 68%CAT 47%

TRANSLATED
keno

Competitor Ad Analysis with Jev

This resource demonstrates how Jev can be utilized to analyze competitor advertising materials. It highlights a workflow for processing ad data to generate curated creative shortlists for marketing strategy development.

Creative & growthEnglish

TypeSafe AIJev HOLDFIT 45%CAT 87%

TRANSLATED
jexp

neo4jev

This project demonstrates a Typesafe.ai System One model designed to navigate Neo4j graph databases. It utilizes a classifier to analyze neighboring relationships, providing a structured approach for Jev-based graph traversal and decision-making processes.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Decisions & routingEnglish

Source-linked curation

TRANSLATED
Web Dev Cody

jevs-fly

This project features a real-time flight simulation game where Jev's decision-making capabilities manage the aircraft. It demonstrates how autonomous logic can be integrated into interactive gaming environments to handle navigation and flight control tasks.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Games & real timeEnglish

Source-linked curation

TRANSLATED
thruwire

foreman

Foreman is an agent supervisor designed to manage coding agents. It utilizes Jev-based decision-making processes to help maintain focus and ensure agents remain on their assigned tasks during development workflows.

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

Source-linked curation

TRANSLATED
rbalch

typesafeai-review

This project demonstrates an implementation of Typesafe.AI to automate the generation of code diff reviews. It provides a workflow for integrating AI-driven analysis into version control processes to assist developers in evaluating code changes.

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

Source-linked curation

TRANSLATED
keltokhy

jlink

jlink provides a framework for linking data records using plain-English matching rules. It utilizes Jev Noul pair judgments to perform local candidate blocking and automated match resolution for record linkage tasks.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Tools & appsEnglish

Source-linked curation

TRANSLATED
kerpopule

hermes-jev-skills

This repository provides a collection of Jev-powered tools for Hermes agents. It demonstrates implementations for model routing, memory management, data compaction, skill selection, and automated computer or browser interaction capabilities.

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

Source-linked curation

TRANSLATED
HyunjunJeon

pi-quiet-ask

This project demonstrates the integration of TypeSafe Jev as a decision-making layer for a coding agent. It explores how structured, quiet reasoning can be applied to automate software development tasks within the pi agent framework.

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

Source-linked curation

MachineLearning-Nerd

jev-tetris

A visual TypeSafe demo where Jev chooses verified Tetris placements.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Games & real timeEnglish

TypeSafe AIJev PASSFIT 75%CAT 98%

TRANSLATED
Twister915

typesafe-ai

This Rust library provides typed clients for AI services, supporting both asynchronous and blocking backends. It demonstrates how to implement observable retry mechanisms to improve the reliability of AI-driven application interactions.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Tools & appsEnglish

Source-linked curation

scale-venture-partners

riff

A small, fast prose linter: ruff-style rule codes for writing, backed by TypeSafe's Jev model.

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

TypeSafe AIJev HOLDFIT 70%CAT 43%

TRANSLATED
RomanSlack

jev-drone

This project demonstrates a camera-only autonomous drone simulation within the MuJoCo environment. It features a TypeSafe Jev judgment model integrated into the control loop, which the creator reports operates at a frequency of 2.5Hz.

jev-drone
Games & real timeEnglish

Source-linked curation

TRANSLATED
jtsang4

jev-cli

This command-line interface facilitates interaction with the Jev evaluation model. It demonstrates a workflow for submitting typed queries and receiving responses formatted as structured JSON, aiming to streamline automated evaluation processes for developers working with TypeSafe AI systems.

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

Source-linked curation

TRANSLATED
Tangerg

typesafe-sdk-go (Tangerg)

This Go SDK provides an interface for the TypeSafe AI API. It enables developers to send typed queries to the service and receive structured probability distributions as output, facilitating integration within Go-based applications.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Tools & appsEnglish

Source-linked curation

TRANSLATED
x.com

Jev as a Reranker Evaluation

This experiment evaluates Jev as a search reranker, finding limited performance gains over standard vector retrieval. The creator reports mixed results that vary significantly based on the specific evaluation methodology applied during testing.

Research & data简体中文

TypeSafe AIJev PASSFIT 76%CAT 99%

TypeSafe AIOFFICIALTRANSLATED
TypeSafe AITypeSafe AITypeSafe AI

TypeSafe Advanced Structure

This official reference documentation details advanced structural primitives for TypeSafe AI. It provides technical guidance on organizing complex data architectures to ensure consistency and reliability within AI-driven development workflows.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Start hereEnglish

Source-linked curation

TRANSLATED
Rob Hallam

Post Scoring with SuperX

SuperX integrates with Jev to automate content evaluation. The creator claims the tool analyzes 61 distinct questions per post in under one second to estimate viral potential.

Decisions & routingEnglish

TypeSafe AIJev HOLDFIT 63%CAT 90%

Paul

jev-piano

A developer project for the games shelf, where Jev improvises piano with proper questions.

jev-piano
Games & real timeEnglish

TypeSafe AIJev HOLDFIT 69%CAT 93%

TRANSLATED
tryaksh

jev-pick-and-place-study

This MuJoCo pilot project evaluates robotic pick-and-place performance by comparing Jev, Claude Haiku, and traditional reactive rules. It provides a reproducible environment to observe how different decision-making approaches handle basic manipulation tasks in a simulated physics setting.

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

Source-linked curation

TRANSLATED
ndolinschi

CartShield

CartShield utilizes TypeSafe Jev to assist small and medium-sized businesses in managing checkout fraud. This tool provides a structured approach for evaluating transaction risks and automating disposition processes within e-commerce environments.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Tools & appsEnglish

Source-linked curation

TRANSLATED
frostney

clean-code-review

This tool automates pull request analysis by evaluating code against Clean Code principles. It utilizes Jev for assessment and Luna for review, providing structured feedback on code quality within a Next.js framework.

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

Source-linked curation

TRANSLATED
wfzyx

von

von is an open-source System One decision model designed as a local, non-autoregressive alternative to TypeSafe Jev. The creator claims the model achieves sub-15ms inference speeds for decision-making tasks.

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

Source-linked curation

TRANSLATED
Tony Dinh

YouTube sponsor skipper

This Chrome extension utilizes Jev to identify and automatically bypass sponsor segments within YouTube videos. It demonstrates a practical application of real-time content analysis to streamline the viewing experience for users.

Creative & growthEnglish

TypeSafe AIJev HOLDFIT 61%CAT 49%

TRANSLATED
Eric Zhang

openjev-sglang

This project provides a Jev-compatible public API leveraging open models. It demonstrates an approach to achieving fast parallel processing for Jev-based workflows using the sglang framework.

Tools & appsEnglish

TypeSafe AIJev HOLDFIT 49%CAT 31%

TRANSLATED
MirkoSonio

jev-reflex

This project demonstrates the rapid response capabilities of Jev when executing browser-based tasks. The developer reports that the agent makes operational decisions in approximately 100 milliseconds during standard testing scenarios.

jev-reflex
Agents & browsersEnglish

Source-linked curation

TRANSLATED
shantanugoel

mario-jev

This Python prototype demonstrates an agent playing NES Super Mario Bros. by interpreting structured RAM data. It utilizes Jev to process game state information and determine appropriate movement and jumping actions for the character.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Games & real timeEnglish

Source-linked curation

TRANSLATED
Abhishek kothari

Jevcal confidence-threshold calibration

This open-source tool provides a mechanism for calibrating confidence thresholds within Jev systems. It demonstrates a practical approach for users to adjust sensitivity settings to better align model outputs with specific operational requirements.

Jevcal confidence-threshold calibration
Tools & appsEnglish

Source-linked curation

TRANSLATED
noplan-inc

limpet

limpet provides a stop hook designed to prevent coding agents from terminating tasks prematurely. It utilizes plain-language rules evaluated by Jev to maintain process continuity.

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

Source-linked curation

TRANSLATED
x.com

Jev Project Showcase

This collection highlights various Jev-based projects and experiments shared on social media. It serves as a curated overview of community-driven applications, demonstrating the practical utility and creative potential of the Jev ecosystem for developers and enthusiasts.

Jev Project Showcase
Tools & appsEnglish

Source-linked curation

TRANSLATED
khaled

Instant variable generation

This demonstration showcases Jev's functionality for rapid variable generation within development workflows. The creator highlights how the tool automates data handling, though users should evaluate its performance and integration capabilities within their own specific coding environments.

Tools & appsEnglish

TypeSafe AIJev HOLDFIT 61%CAT 42%

TRANSLATED
Eugene Cheah

Simple Jev

Simple Jev is an open-source library designed to convert Hugging Face models into Jev-style endpoints. This tool aims to improve accessibility by simplifying the integration process for developers looking to deploy machine learning models within the Jev ecosystem.

Tools & appsEnglish

TypeSafe AIJev HOLDFIT 49%CAT 70%

TRANSLATED
Mapika

decider

This project introduces a System One-style model fine-tuned from Qwen3.5-2B. It demonstrates a method for performing single-pass typed decision-making tasks while incorporating calibrated probability outputs for improved reliability in automated reasoning workflows.

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

Source-linked curation

TRANSLATED
ctaxnagomi

dgui-hypermem

DGUI-HyperMem is a self-hosted hybrid memory MCP server deployed on Cloudflare Workers. It utilizes a JEV reasoning layer and a HuggingFace-based training flywheel to manage memory, demonstrating an experimental approach to integrating persistent data structures with automated reasoning workflows.

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

Source-linked curation

TRANSLATED
ajensenwaud

hermes-jev-plugin

This plugin integrates TypeSafe Jev System One decision tools into the Hermes Agent framework. It provides specific functions for checking, routing, scoring, and evaluating agent decisions to improve operational logic and reliability within the system.

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

Source-linked curation

TRANSLATED
TokenTrim

jev-agent-failure-benchmark

This repository provides a benchmark comparing Jev against a strong LLM using the Who&When Pro agent-failure-attribution dataset. It demonstrates a methodology for evaluating how effectively these systems identify and attribute specific failures within agentic workflows.

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

Source-linked curation

TRANSLATED
bestagentkits

jev-skillful

This tool provides a per-prompt capability router for coding agents. It resolves installed skills, MCP servers, and commands using TypeSafe Jev while attempting to measure the effectiveness of these injections on agent performance.

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

Source-linked curation

TRANSLATED
x.com

LLMs vs. Jev Comparison

This resource contrasts Jev with LLMs, highlighting how Jev evaluates predefined decisions directly. It demonstrates how this architectural difference allows for the parallel processing of independent questions, distinguishing its operational approach from standard generative language models.

Start hereEnglish

TypeSafe AIJev HOLDFIT 69%CAT 54%

TRANSLATED
realZachi

pg-jev

pg-jev is a PostgreSQL extension that enables natural language querying of database tables. It integrates Jev technology to allow users to interact with their relational data using plain English prompts.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Tools & appsEnglish

Source-linked curation

TRANSLATED
mrnugget

jev-shell-history

This tool integrates Jev-powered ranking into zsh shell history. It demonstrates how to provide Fish-style autosuggestions by leveraging TypeSafe AI to prioritize command history based on user context and relevance.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Tools & appsEnglish

Source-linked curation

MongLong0214

jev-gate

Not every coding task needs your best model. Experimental Jev-powered model routing for Claude Code — V3 prototype runs today, V4 routes at the task boundary.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Decisions & routingEnglish

TypeSafe AIJev HOLDFIT 64%CAT 93%

TRANSLATED
Fayaz Ahmed

OCR Image Classifier

This project demonstrates an image classification workflow integrating OCR and Jev. The creator reports processing 900 images within a 40-second timeframe using this automated pipeline.

Decisions & routingEnglish

TypeSafe AIJev HOLDFIT 66%CAT 53%

TRANSLATED
Gaurav-Gosain

jev-headline-bench

This project evaluates the ability of Jev to predict successful A/B test outcomes for headlines. The creator reports that Jev correctly identified the winning headline in 64.5% of over 10,000 Upworthy experiments, with accuracy increasing when performance differences were more pronounced.

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

Source-linked curation

TRANSLATED
lab-dados

jev-anotacao-sentencas

This research project compares Jev, Gemini 3.8 Flash, and GPT-5.6 Luna regarding their performance in structured annotation of TJSP legal sentences. It evaluates the quality, processing time, and operational costs associated with each model.

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

Source-linked curation