PROJECTS & RESOURCES DIRECTORY

Jev projects and resources

Find a Jev implementation for agent routing, browser actions, coding tools or context compaction. See which decision Jev handles, how it is integrated and whether the source evidence has been reviewed.

Community directory snapshot 2026-09-28 Review method 2026 ecosystem report

1428catalogued records

346source-reviewed entries

74project analysis pages

651Kknown deduplicated stars

The catalog includes 1,334 repository or integration records, 61 article or discussion records and 33 other resources. Repository links resolve to 1,332 unique GitHub repositories; a public link alone does not establish an open-source license.

HOT / 10

Popular Jev projects

Ten widely followed projects spanning browser automation, context compaction, trading, official skills, computer use, review, orchestration, and data.

01 jev-ultrafast ★ 19K 02 fast-jev-compaction ★ 6,653 03 jev-trader ★ 2,240 04 TypeSafe agent skills ★ 2,060 05 agent-desktop ★ 1,604 06 typesafe-computer-use ★ 937 07 Jev Review ★ 586 08 foreman ★ 540 09 hermes-jev-skills ★ 726 10 pg-jev ★ 329

01 / DIRECTORY

Browse Jev projects and resources

Search by project, author, use, or tag, then filter by category or activity. Open project details to see how it uses Jev and review its source links.

Showing 1009–1032 of 1428 Some public source has been reviewed; inclusion is not a performance or safety endorsement

human-compiler

asfarsadewa

1009

Demos & Playgrounds E0 · catalogued

A compiler for human language. Paste text, get diagnostics. Measured by TypeSafe Jev.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

hunch

HAR5HA-7663

1010

Browser & OS Action E0 · catalogued

⚡ Browser agent that acts on a hunch: Jev (TypeSafe System One) picks every click in ~150 ms, an LLM is only needed when confidence drops. Zero-dependency Python on top of agent-browser.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

instruct-jev

ctaxnagomi

1011

Agent Tooling E0 · catalogued

INSTRUCT_JEV - TypeSafe AI Jev / System One instruction corpus (choice/noul/score), compiled by DeckerGUI. 119 rows. Mirrored on HuggingFace.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

Jackalope

Jackalope-Dev

1012

Domain & Vertical Tools E0 · catalogued

Desktop GUI for agentic coding that routes tasks across local agents and accounts, with Jev picking the best agent per task, running basic code-review checks, and supplying context.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

jev

anilsenay

1013

SDK & Decision Frameworks E0 · catalogued

Unofficial Go client for TypeSafe's System One API and its model, Jev.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

jev

kataras

1014

SDK & Decision Frameworks MIT E1 · source linked

A Go client for the TypeSafe AI's System One API and its model, Jev.

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

multilanguage-sdktyped-decisions

jev (zeke)

zeke

1015

Demos & Playgrounds E0 · catalogued

Research notes and an interactive Cloudflare Worker demo for Jev, TypeSafe AI's structured decision model

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

jev_ampcode

thesammykins

1016

MCP & Integrations E2 · source reviewed

An Amp plugin for comparing supplied alternatives against supplied evidence and priorities.

JEV · Decision point

Uses Jev Choice to compare bounded options and return probabilities for further review.

Keeps alternatives and decision inputs explicit.

coding-agentsmcp-integrationstyped-decisions

jev_dart

Solido

1017

SDK & Decision Frameworks MIT E1 · source linked

Jev Dart SDK to build cli, server and Flutter apps.

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

multilanguage-sdktyped-decisions

jev_playground

JYeswak

1018

SDK & Decision Frameworks MIT E1 · source linked

Jev answers typed questions about a state with calibrated numbers. This repo is where we find out which of those numbers deserve to drive code, and where a regex or a constant does the job better.

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

multilanguage-sdktyped-decisionssecurity-guardrails

jev_projects

X0EF

1019

Demos & Playgrounds E0 · catalogued

list of projects that use typesafe's jev

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

jev-agent-kit

walidboulanouar

1020

MCP & Integrations MIT E1 · source linked

jevkit: fast typed decisions for agents. CLI and MCP tools (route, triage, guard, grep, rank, compact, judge) on TypeSafe Jev. Zero dependencies.

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

mcp-integrationscli-git-gates

jev-agent-toolkit

reiswaffel78

1021

MCP & Integrations MIT E1 · source linked

Jev-first portable Agent Skill and optional MCP bridge for Claude Code, Codex, Cursor and compatible agents.

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

mcp-integrationstyped-decisions

jev-benchmark (themsquared)

themsquared

1022

Evaluation & Observability E0 · catalogued

Reproducible benchmark for TypeSafe AI's Jev on agent tool-call risk classification: accuracy, latency, and whether the confidence score is worth routing on.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

jev-boe-demo

Tatuck

1023

Demos & Playgrounds E0 · catalogued

Daily demo applying TypeSafe's Jev model to Spain's official gazette (BOE).

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

jev-by-example

ReallyArtificial

1024

SDK & Decision Frameworks MIT E1 · source linked

Ten runnable Jev examples for agent decisions: memory conflicts, tool-result checks, recovery, context selection, and handoffs. JavaScript, zero dependencies.

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

multilanguage-sdktyped-decisionscoding-agents

jev-carryforward

Dharundp6

1025

Context GC & Filter MIT E1 · source linked

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.

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

context-compactiontyped-decisions

jev-chrome-extension

gavansmyth-arch

1026

Security & Guardrails E1 · source linked

1. Open any website. 2. Click the Jev icon. The side panel opens on **Drive**. 3. Type a goal, e.g. *Search Wikipedia for "espresso" and open the article*, and press **Run**.

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

security-guardrailstyped-decisions

jev-claim-vs-measured

Siim

1027

High-Frequency & Simulation E1 · source linked

A post with ~400k views says TypeSafe's **Jev** is the fastest AI model ever built for trading, makes calibrated buy/sell decisions in under 100 ms, and shows how to build an HFT system on it. The article behind it contains no backtest, no P&L and no hit rate. So I ran the tests: on the raw tape at one decision per second, and at 15–60 minute horizons. It cost **$0.97** of API credit. Everything needed to check me is in this repository.

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

games-simulationtyped-decisions

jev-clash-royale-test

JanDalhuysen

1028

High-Frequency & Simulation E2 · source reviewed

A Clash Royale-style sandbox whose Jev bot decides play-or-hold, card, lane, and depth in one System One call.

JEV · Decision point

One systemOne call with a should_play Noul plus card, lane, and depth Choices.

Makes play choices inspectable probabilities. package.json says ISC; there is no LICENSE file.

games-simulationtyped-decisions

jev-console

wenchenxi

1029

CLI & Pipelines MIT E1 · source linked

Jev does not generate text. You send it a **state** plus a set of **typed questions**, and it answers each one with a typed value and a calibrated probability:

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

cli-git-gatestyped-decisions

jev-context

zbush

1030

Context GC & Filter MIT E2 · source reviewed

A Codex search plugin that filters ripgrep passages through Jev before returning relevant code.

JEV · Decision point

Judges passage relevance and withholds No and Unknown results.

Records paired payloads for measuring returned text under a named tokenizer.

context-compactioncoding-agentssearch-retrieval

jev-demo

PenglongHuang

1031

Browser & OS Action MIT E1 · source linked

A zero-dependency local web demo for TypeSafe's **Jev (System One)** decision model: send a state plus typed questions, get choices, scores and calibrated probabilities back.

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

browser-automationtyped-decisions

jev-drive

Alpha-Harper-Franklin

1032

Domain & Vertical Tools MIT E1 · source linked

Jev + autonomous driving: structured decisions, multimodal baselines, recovery research, and measured API diagnostics.

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

domain-workflowstyped-decisions