A FIELD GUIDE TO JEV / VOL. 01

Pequenas decisões.
Grandes possibilidades.

O melhor de Jev: projetos reais, guias práticos e ideias de toda a internet.

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THE OFFICIAL SIGNAL 4 HIGHLIGHTS
Diogo Almeida@CompleteSkepticLAUNCH POST

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.

Four official signals. A fresh starting point on each visit.

1.198 recursos

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

DESTAQUETRADUZIDO
typesafe-ai

Habilidades do agente TypeSafe

Habilidades oficiais para agentes Claude Code, Codex e compatíveis: primitivas, padrões e como estruturar avaliações.

Habilidades do agente TypeSafe
Start hereEnglish

Source-linked curation

Juris

Jev plays Balatro

Jev from @typesafeai plays Balatro, making quick decisions on cards and gameplay within 200-500ms.

Jev plays Balatro
Games & real timeEnglish

Source-linked curation

shiftynick

jev-axi

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

jev-axi
Agents & browsersEnglish

Source-linked curation

Rafal Wilinski

Vibecheck

A community post about humor management on a social platform.

Vibecheck
Agents & browsersEnglish

Source-linked curation

Tommy Jepsen

Danish stock-market backtest

Jev conducts a sentiment-based stock market analysis for the Danish market in 2025, using diverse data sources with low cost.

Danish stock-market backtest
Markets & experimentsEnglish

Source-linked curation

SmalltownRobot

A logical-fallacy detector

A Brave extension that scores posts for logical fallacies in real time, highlighting well-reasoned content with a green flag.

A logical-fallacy detector
Agents & browsersEnglish

Source-linked curation

Pratim Bhosale

Voice intent to tool calls

An experiment using Jev to interpret voice commands and trigger tool actions before the user finishes speaking.

Voice intent to tool calls
Agents & browsersEnglish

Source-linked curation

tyler-dot-earth

patdown

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

patdown
Agents & browsersEnglish

Source-linked curation

Mnimiy

A draft quality gate

A community post discussing a system where Jev acts as a quality gate for drafts, though it faced issues with communication.

A draft quality gate
Tools & appsEnglish

Source-linked curation

Shubhankar

Painting the Golden Gate Bridge

A creative project using Jev and other tools to generate digital art, specifically a painting of the Golden Gate Bridge.

Painting the Golden Gate Bridge
Creative & growthEnglish

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

Source-linked curation

aaron

Computer use built on Jev

Aaron Levin: 155x cheaper than Opus 5, about 20x faster, and it generalizes across operating systems.

Computer use built on Jev
Tools & appsEnglish

Source-linked curation

fatwang2

awesome-jev (fatwang2)

A source-backed Jev project directory with a reusable Jev-only GitHub review workflow.

awesome-jev (fatwang2)
Tools & appsEnglish

Source-linked curation

1jehuang

jev-pr-labeler

Semantic GitHub PR labels using Jev's typed decisions, with conceptual scope instead of line counts.

jev-pr-labeler
Creative & growthEnglish

Source-linked curation

Konstantinos Botonakis

codex-context-diet

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

codex-context-diet
Agents & browsersEnglish

Source-linked curation

Abid A Gafoor

capture

A Mac voice diary tool that uses Jev for sorting and integrates with Notion.

capture
Tools & appsEnglish

Source-linked curation

Kevin Kern

Android end-to-end testing

Testing Jev's performance in automating Android end-to-end tests, showing faster results compared to other tools.

Android end-to-end testing
Tools & appsEnglish

Source-linked curation

Jon Yongfook

Bannerbear instant field mapping

A tool for instant field mapping between templates and data sources, simplifying data alignment with one-click functionality.

Bannerbear instant field mapping
Tools & appsEnglish

Source-linked curation

Idan Levin

Jev on the WebMCP benchmark

Jev achieved 100% task success on the WebMCP benchmark with significantly lower model costs compared to other systems, using a combination of tool selection and argument generation.

Jev on the WebMCP benchmark
Agents & browsersEnglish

Source-linked curation

Elia Alberti

jev-rules

A developer project that selects applicable rules for Claude, ensuring only relevant information is shown.

jev-rules
Tools & appsEnglish

Source-linked curation

Cryptonaire //

Jev on Sol

Jev on Sol. A community post describing an experiment where Jev analyzes Solana blockchain data in real time.

Jev on Sol
Markets & experimentsEnglish

Source-linked curation

Tommy J. Vedvik

Three Jev bots in an FPS

A community project embedding three Jev-powered bots into a first-person shooter game.

Three Jev bots in an FPS
Games & real timeEnglish

Source-linked curation

Kevthetech143

super-jev

A small, extensible decision-to-action harness for TypeSafe Jev.

super-jev
Tools & appsEnglish

Source-linked curation

x.com

The compaction plugin, in Spanish

A community post describes a plugin that manages agent context by analyzing and pruning unnecessary data, available in Spanish.

The compaction plugin, in Spanish
Agents & browsersEspañol

Source-linked curation

CodeAlive

mastra-jev-moderation

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

mastra-jev-moderation
Agents & browsersEnglish

Source-linked curation

Aria

Connect Four on Omarchy

Jev plays Connect Four on OmarchyLinux, demonstrating real-time decision loops with structured state.

Connect Four on Omarchy
Games & real timeEnglish

Source-linked curation

Meteor Simulation

TypeEvacSafe

A fire evacuation simulation where each person makes Jev-style decisions.

TypeEvacSafe
Games & real timeEnglish

Source-linked curation

Brainwires

jevwire

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

jevwire
Agents & browsersEnglish

Source-linked curation

IT guy

Hipershopping with Agentcard

Agentcard integrates Jev and Kernel to enable secure and efficient online shopping by agents, avoiding token costs and safety issues.

Hipershopping with Agentcard
Agents & browsersEnglish

Source-linked curation

Mike Hostetler // Actors & Agents on the BEAM

Jido agents play tic-tac-toe

Jido agents use Jev to make moves in Tic Tac Toe, demonstrating Jev's application in game-playing agents.

Jido agents play tic-tac-toe
Agents & browsersEnglish

Source-linked curation

blog.lepine.pro

Let’s look at Jev

Jev is discussed with examples of Choice, Noul, and Score in a Python project.

Let’s look at Jev
Tools & appsEnglish

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

Source-linked curation

choxos

jev-reviewer

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.

jev-reviewer
Agents & browsersEnglish

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

Source-linked curation

Radix ILS

typesafe-sdk-go

A Go client for the TypeSafe API, aimed at developer tools and applications.

typesafe-sdk-go
Start hereEnglish

Source-linked curation

DanRWilloughby

snifftest

A prose linter that sniffs out AI writing tells. Zero dependencies, countable rules plus one judgment model.

snifftest
Agents & browsersEnglish

Source-linked curation

Probably Nick

Jev plays piano

Jev generates piano music by selecting notes and chords based on input sequences.

Jev plays piano
Creative & growthEnglish

Source-linked curation

Isaac Sin

MakerMods robot arm in MuJoCo

A MakerMods robot arm is demonstrated within the MuJoCo simulation environment, showing interaction through JSON state inputs and action selections.

MakerMods robot arm in MuJoCo
Devices & roboticsEnglish

Source-linked curation

Kevin Wang

Lurk

A tool for monitoring Reddit threads to gather data cited by AI, offering free analysis of 4000 threads via email, Discord, or Slack.

Tools & appsEnglish

Source-linked curation