Best AI Agent Skills for TypeSafe Jev in 2026

Open-source projects built on TypeSafe's Jev decision model, security-graded: the jev-ultrafast browser agent, openjev, fast-jev-compaction, Jev code review tools and MCP servers. Vet before you install.

🔍 Browse 68 typesafe jev tools ⭐ 43.0k total stars 🔄 Refreshed every 8h
Quick Pick — If you only pick one, go with jev-ultrafast ★ 10.6k — i. am. speed.

The Complete Guide to TypeSafe Jev Tools (2026)

What Are TypeSafe Jev Tools?

TypeSafe Jev tools are AI-powered software designed to help developers and teams tackle typesafe jev-related tasks more efficiently. These tools are typically published as open-source projects on GitHub and can be integrated into existing workflows via MCP (Model Context Protocol), Claude Skills, or standalone agent frameworks. On Agent Skills Hub, we index 68 quality-scored typesafe jev tools across languages including Python, TypeScript, JavaScript.

Why Use TypeSafe Jev Tools?

In 2026, the AI agent ecosystem is maturing rapidly. TypeSafe Jev tools can significantly boost development efficiency by automating repetitive tasks, reducing human error, and providing intelligent suggestions. The top 3 tools — jev-ultrafast, openjev, fast-jev-compaction — have earned an average of 632 GitHub stars, reflecting strong community validation. 50 of the listed tools come with clear open-source licenses, ensuring freedom to use and modify.

How to Choose the Best TypeSafe Jev Tool?

When choosing a typesafe jev tool, consider these factors: 1) Community activity — GitHub stars and recent commit frequency indicate reliability; 2) Integration method — check if it supports MCP, Claude, or your preferred agent framework; 3) Language compatibility — the most common language in this list is Python; 4) Quality score — Agent Skills Hub's composite score evaluates code quality, documentation completeness, and maintenance activity. Our recommendation: start with jev-ultrafast — it ranks highest in both star count and quality score.

Top 68 TypeSafe Jev Tools

1 jev-ultrafastNEW by browser-use
★ 10.6k Python AI Tool

i. am. speed.

View Details → GitHub →
2 openjevNEW by TheoLeeCJ
★ 1.4k Python AI Tool

Can we run something like Jev on a 3090 at home?

View Details → GitHub →
3 fast-jev-compactionNEW by tamaratran
★ 4.7k TypeScript Agent Tool

Claude Code plugin that replaces the compaction summary with Jev decisions: every tool call and result is scored in one fast request, stale ones are dropped or truncated, everything kept stays verbatim.

View Details → GitHub →
4 typesafe-computer-useNEW by awlevin
★ 573 Python Agent Tool

Computer use for about $0.0002 a step: OCR the screen, classify the next action with TypeSafe, click. macOS.

View Details → GitHub →
5 QuantDinger by OpenByteInc
★ 11.8k Python MCP Server

Open-source AI Trading OS, agent trading, and vibe trading, with Jev System One integration. Research, build Python strategies, backtest, and paper/live trade across crypto, stocks, and forex. Launch your own multi-tenant trading SaaS with built-in user management, billing, payments, and settlement.

View Details → GitHub →
6 SemIfNEW by TheoLeeCJ
★ 2.2k Python AI Tool

Semantic ifs from open models, on a 3090 at home. Independent; not affiliated with Jev or TypeSafe.

View Details → GitHub →
7 jevlikeNEW by vinnylarouge
★ 1.0k Python AI Tool

View Details → GitHub →
8 kevNEW by jaredpalmer
★ 743 Python AI Tool

tiny Jev-like model built on top of Qwen2.5-0.5B you can train and run on your MacBook

View Details → GitHub →
9 reticle by reticlehq
★ 730 TypeScript MCP Server

AI agents can generate code, but still struggle to understand what they build. Reticle brings Jev-style machine-native runtime perception to web & desktop applications.

View Details → GitHub →
10 Jev-cuNEW by Sac-Y
★ 426 JavaScript AI Tool

View Details → GitHub →
11 vexjoy-agent by notque
★ 421 Python Claude Skill

VexJoy AI Agent with Jev Intelligent Routing - /do routes plain-English requests to the right specialist agent and gates the work with reviews, tests, and a learning loop.

View Details → GitHub →
12 foremanNEW by thruwire
★ 417 Python AI Tool

Software factory foreman based on TypeSafe's Jev model

View Details → GitHub →
13 jev-reviewNEW by devagrawal09
★ 388 TypeScript AI Tool

A staged code-review workflow and local dashboard built with TypeSafe Jev.

View Details → GitHub →
14 simple-jevNEW by featherless-ai
★ 348 Python AI Tool

Turn any open model into a classifier/jev endpoint

View Details → GitHub →
15 jev-experimentsNEW by dabit3
★ 324 TypeScript AI Tool

View Details → GitHub →
16 typesafe-marioNEW by fhshaik
★ 293 Python AI Tool

A TypeSafe/Jev agent that plays Super Mario Bros. from structured emulator state.

Quick Start: Inspect the exact JSON and text that will be sent to TypeSafe without launching the game or calling the API: powershell .venv\Scripts\typesafe-mario s...
```powershell
py -3.13 -m venv .venv
.venv\Scripts\python -m pip install -e ".[mario,dev]"
$env:TYPESAFE_API_KEY = "your-key"
```
View Details → GitHub →
17 tax-doc-classifierNEW by kyotofin
★ 288 TypeScript AI Tool

Tax document page classifier built on Jev decisions. 100% strict accuracy across 261 IRS forms, ~$0.001 per page.

View Details → GitHub →
18 jev-searchNEW by superagents-lab
★ 270 TypeScript AI Tool

Search the web with TypeSafe's Jev: source selection, query understanding and relevance ranking. Built with Search1API.

View Details → GitHub →
19 mobile-jevNEW by droidrun
★ 260 JavaScript AI Tool

View Details → GitHub →
20 jev-routerNEW by gargpratyush
★ 235 JavaScript AI Tool

Route to the cheapest model in claude code for your task using jev-router

View Details → GitHub →
21 pg-jevNEW by realZachi
★ 233 Shell Agent Tool

Ask your Postgres tables questions in plain language. A PostgreSQL extension powered by TypeSafe's Jev.

View Details → GitHub →
22 jev-browser-useNEW by wy-coliney
★ 228 JavaScript Codex Skill

5–10x faster browser operations: Jev clicks, Codex thinks and verifies. Built at EZCollegeApp.

View Details → GitHub →
23 quackd by rokbenko
★ 212 Python MCP Server

One CLI for all your robots. Connect them, command them, and let them work together, each with an LLM for a brain, Jev for cheaper steps. Microduck, Open Duck Mini, LeRobot, XLeRobot, AlohaMini, ToddlerBot or any ROS base. Claude, OpenAI, Gemini, Grok, or local via Ollama or vLLM. Simulator, .duck safety contracts, MCP, memory between runs, flocks.

View Details → GitHub →
24 openjev-sglangNEW by ekzhang
★ 209 Python LLM Plugin

Jev-compatible API endpoint based on open models (prefill-only)

View Details → GitHub →
25 skillboxNEW by kitze
★ 208 TypeScript MCP Server

Self-hosted, versioned skills library for AI agents. MCP, scoped clients, and optional Jev recommendations.

View Details → GitHub →
26 jev-alignNEW by sutro-sh
★ 205 Python AI Tool

Build calibrated AI classifiers from human feedback using Jev and GEPA.

Quick Start: Requires Python 3.11 or newer. Start the CLI with either or . Use if you do not use uv. The guided setup discovers local CSV, Parquet, and JSONL files...
```shell
uv tool install jev-align
export TYPESAFE_API_KEY="..." # Or use Vercel or Cloudflare below
export OPENAI_API_KEY="..." # or ANTHROPIC_API_KEY / GEMINI_API_KEY
jeva
```
View Details → GitHub →
27 jev-reviewNEW by NiazMorshed2007
★ 177 TypeScript MCP Server

Local-first MCP plugin for continuous software-quality review by AI coding agents, powered by Jev.

View Details → GitHub →
28 jev-browserNEW by jkudish
★ 168 TypeScript AI Tool

Browser use using Typesafe's Jev model

View Details → GitHub →
29 openjevNEW by razorback16
★ 168 Python AI Tool

Open, Jev-compatible System One decision server on DiffusionGemma

View Details → GitHub →
30 jev-visualNEW by hr98w
★ 163 Python Agent Tool

An educational Jev-like visual inference experiment on Apple Silicon: shared context, direct candidate scoring, and local visual demos.

View Details → GitHub →
31 perchNEW by lakeday-org
★ 162 JavaScript AI Tool

Semantic code linting with Jev

View Details → GitHub →
32 hermes-jev-skillsNEW by kerpopule
★ 158 Python Codex Skill

Jev-powered model routing, memory, compaction, skill selection, computer and browser use for Hermes agents (also Claude Code and Codex)

View Details → GitHub →
33 jeffNEW by logan-markewich
★ 148 Python AI Tool

A self-hosted drop-in replacement for TypeSafe's jev, powered by GliFormer.

View Details → GitHub →
34 unclutterNEW by kitze
★ 141 TypeScript AI Tool

WXT browser extension: Jev-powered page clutter removal with reusable template rules.

View Details → GitHub →
35 jev-voice-browserNEW by moritzkremb
★ 141 JavaScript AI Tool

Control a real browser by voice. Jev (TypeSafe System One) decides intent + target in ~300 ms per spoken word; Playwright acts — often before you finish the sentence.

View Details → GitHub →
36 jev-mcpNEW by jkudish
★ 140 TypeScript MCP Server

Fast, cheap, typed judgments from TypeSafe's Jev model, as MCP tools.

View Details → GitHub →
37 openJev-verdict-2.0NEW by Heman10x-NGU
★ 133 Python Agent Tool

Calibrated 151M Non-Autoregressive Decision Engine beating TypeSafe Jev & Laya on LocalLLaMA/typed-decisions (77.10% acc, 0.0636 Brier, 0.0144 ECE)

View Details → GitHub →
38 typesafe-mcpNEW by itsmostafa
★ 127 Go MCP Server

mcp connector to give your AI agent direct access to typesafe ai's jev model

View Details → GitHub →
39 minecraft-agentNEW by rmalde
★ 127 JavaScript AI Tool

Astra planner and JEV controller for Minecraft, with native recording, tested routes, and run verification.

View Details → GitHub →
40 building-with-jev-skillNEW by dbreunig
★ 123 AI Tool

A skill for writing and improving programs that call Jev, TypeSafe's System One model

Quick Start: Claude Code plugin Run these two commands inside Claude Code: Skills CLI The skills CLI installs the skill into Claude Code, Codex, Cursor, and other ...
```
/plugin marketplace add dbreunig/building-with-jev-skill
/plugin install jev@building-with-jev
```
View Details → GitHub →
41 jev-prunerNEW by tamaratran
★ 121 TypeScript AI Tool

Claude Code plugin: trim long Bash output with TypeSafe Jev before the model sees it

View Details → GitHub →
42 jev-semgrepNEW by uehaj
★ 107 JavaScript AI Tool

grep by meaning, across languages. TypeSafe Jev scores every line against a meaning; combine meanings with AND/OR/NOT. 意味で探す grep。日本語で英語を、英語で日本語を検索できる

View Details → GitHub →
43 pi-jevNEW by y0usaf
★ 106 TypeScript Agent Tool

TypeSafe Jev as a decision layer for the Pi coding agent: a measured tool-call gate plus jev_ask for typed, calibrated answers

Quick Start: The extension needs an API key. Without one it loads, says so once, and stays out of the way.
```bash
pi install npm:@y0usaf/pi-jev
```
View Details → GitHub →
44 jevpilotNEW by standardagents
★ 106 JavaScript AI Tool

A playable Three.js driving simulator with Jev-powered autopilot

View Details → GitHub →
45 JevRouterNEW by BillionsBobby
★ 102 TypeScript Agent Tool

A lightweight Jev-powered router for models, tools, and subagents

View Details → GitHub →
46 pi-wardenNEW by DevMortimer
★ 100 TypeScript Agent Tool

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

View Details → GitHub →
47 Jev-X-Sentiment-AnalysisNEW by brainstormity
★ 100 Python AI Tool

View Details → GitHub →
48 jev-eval-agentNEW by vinilana
★ 96 HTML AI Tool

View Details → GitHub →
49 stanley-codeNEW by devagrawal09
★ 87 TypeScript Agent Tool

Bounded TypeSafe Jev workflows for coding agents.

View Details → GitHub →
50 advocaatNEW by pithings
★ 85 TypeScript Agent Tool

A small, type-safe client for asking AI questions about your data, powered by TypeSafe Jev.

Quick Start: Install the package: Set your TypeSafe API key: Using Vercel instead? See Vercel AI Gateway. Ask several questions about the same data in one request:
```sh
npx nypm i advocaat
```
View Details → GitHub →
51 skillrankerNEW by Dicklesworthstone
★ 83 Rust Claude Skill

Rust CLI powered by Jev from TypeSafe.ai that ranks agent skills for the next step using live session context. Includes Claude Code hooks, structured JSON, abstention, and local feedback. Requires a TypeSafe API key.

View Details → GitHub →
52 jev-droneNEW by RomanSlack
★ 83 Python AI Tool

Camera-only autonomous drone in MuJoCo with a small judgment model (TypeSafe Jev) in the loop at 2.5Hz

View Details → GitHub →
53 reflexNEW by kshetrajna12
★ 82 Python AI Tool

A small open decision model: state + typed questions -> calibrated probabilities. A Jev / System One re-creation on Qwen3.5.

View Details → GitHub →
54 jev-codex-routerNEW by 0xNatoshi
★ 80 Python Codex Skill

Per-turn model & reasoning routing for Codex, driven by Jev (TypeSafe System One): picks the model, thinking depth and speed mode for every turn.

View Details → GitHub →
55 vonNEW by wfzyx
★ 78 Python AI Tool

The open-source System One decision model. Sub-15ms, non-autoregressive, local drop-in alternative to TypeSafe Jev.

View Details → GitHub →
56 youtube-sponsor-detectionNEW by trungdq88
★ 75 JavaScript AI Tool

Detect youtube sponsor segment with live audio and transcript powered by Jev

View Details → GitHub →
57 jevmeterNEW by ChetasLua
★ 72 Python AI Tool

Put a live Jev (TypeSafe) meter on any video: every sentence scored, rendered as a 16:9 edit

View Details → GitHub →
58 jev-shell-historyNEW by mrnugget
★ 68 TypeScript AI Tool

Fish-style zsh history autosuggestions ranked by Jev (TypeSafe)

Quick Start: Requirements: zsh 5.9+, Node 22+ (runs the TypeScript directly), a TypeSafe API key. In : Suggestions are accepted by , , and when the cursor is at th...
```sh
git clone <this repo> ~/.zsh/jev-shell-history
cd ~/.zsh/jev-shell-history && npm install
```
View Details → GitHub →
59 embodied-jevNEW by FBddcz
★ 67 Python AI Tool

EmbodiedJev: MuJoCo robot decision workbench with MiniCPM5-2B, Jev and compatible model APIs

View Details → GitHub →
60 jev-skillNEW by wuyoscar
★ 64 Python Agent Tool

An awesome collection of Jev use cases, workflows, and agent skills.

View Details → GitHub →
61 open-jevNEW by daseinlabs
★ 63 Python AI Tool

Open Jev implementation with custom finetuning

View Details → GitHub →
62 jev-gatewayNEW by vinilana
★ 62 TypeScript AI Tool

Quick Start: You need Node.js 22.15 or newer, a TypeSafe API key, and Codex and/or Claude Code already installed and logged in. 1. Install 2. Save your TypeSafe ke...
```bash
npm install -g jev-gateway
```
View Details → GitHub →
63 typesafe-adblockNEW by realZachi
★ 58 JavaScript Agent Tool

🧹 Fun project: a Chrome extension that asks a tiny AI decision model (TypeSafe Jev) "is this DOM element an ad?" and pops it off the page. BYOK, no backend, not a real ad blocker.

View Details → GitHub →
64 jev-browserNEW by vlad-terin
★ 56 JavaScript Agent Tool

Jev-powered element selection for your agent’s existing computer-use tools

Quick Start: Excalidraw drawing: https://github.com/user-attachments/assets/2e456743-96d5-4ad9-8ca3-97f7b6ed11f2
View Details → GitHub →
65 save-token-jev-cleanNEW by IAmUnbounded
★ 56 TypeScript AI Tool

View Details → GitHub →
66 jev-chatNEW by w3cj
★ 56 TypeScript Agent Tool

A tool calling chat bot built with Jev and no LLM.

View Details → GitHub →
67 agent-routerNEW by nidhi-singh02
★ 52 TypeScript Codex Skill

CLI that picks Cursor, Claude Code, Codex, or OpenCode + model/effort for a task, then launches it. Powered by Jev and Herdr

View Details → GitHub →
68 jev-useNEW by savka777
★ 51 Swift Agent Tool

Say it, and your Mac does it. A computer-use harness on Jev that reads the screen through Accessibility. Fast, no vision model

Quick Start: Requires macOS 14.2+ and Xcode. No dependencies. In setup: save your TypeSafe API key (stored in the Keychain), then allow Accessibility, microphone a...
```sh
bash build.sh
open "$HOME/Applications/Desktop Voice.app"
```
View Details → GitHub →

Comparison

Tool Stars Language License Score
jev-ultrafast ★ 10.6k Python MIT 78
openjev ★ 1.4k Python MIT 70
fast-jev-compaction ★ 4.7k TypeScript MIT 84
typesafe-computer-use ★ 573 Python MIT 71
QuantDinger ★ 11.8k Python Apache-2.0 74
SemIf ★ 2.2k Python MIT 69
jevlike ★ 1.0k Python MIT 63
kev ★ 743 Python Apache-2.0 72
reticle ★ 730 TypeScript 66
Jev-cu ★ 426 JavaScript 64
vexjoy-agent ★ 421 Python MIT 73
foreman ★ 417 Python MIT 66
jev-review ★ 388 TypeScript MIT 70
simple-jev ★ 348 Python 61
jev-experiments ★ 324 TypeScript 45
typesafe-mario ★ 293 Python 66
tax-doc-classifier ★ 288 TypeScript Apache-2.0 73
jev-search ★ 270 TypeScript MIT 71
mobile-jev ★ 260 JavaScript MIT 60
jev-router ★ 235 JavaScript MIT 66
pg-jev ★ 233 Shell 69
jev-browser-use ★ 228 JavaScript MIT 65
quackd ★ 212 Python Apache-2.0 61
openjev-sglang ★ 209 Python 69
skillbox ★ 208 TypeScript MIT 68
jev-align ★ 205 Python Apache-2.0 65
jev-review ★ 177 TypeScript MIT 68
jev-browser ★ 168 TypeScript MIT 61
openjev ★ 168 Python Apache-2.0 64
jev-visual ★ 163 Python MIT 70
perch ★ 162 JavaScript MIT 60
hermes-jev-skills ★ 158 Python MIT 66
jeff ★ 148 Python MIT 74
unclutter ★ 141 TypeScript MIT 65
jev-voice-browser ★ 141 JavaScript MIT 64
jev-mcp ★ 140 TypeScript MIT 72
openJev-verdict-2.0 ★ 133 Python 69
typesafe-mcp ★ 127 Go MIT 75
minecraft-agent ★ 127 JavaScript 59
building-with-jev-skill ★ 123 70
jev-pruner ★ 121 TypeScript MIT 62
jev-semgrep ★ 107 JavaScript 70
pi-jev ★ 106 TypeScript MIT 70
jevpilot ★ 106 JavaScript 64
JevRouter ★ 102 TypeScript MIT 64
pi-warden ★ 100 TypeScript MIT 71
Jev-X-Sentiment-Analysis ★ 100 Python 62
jev-eval-agent ★ 96 HTML 60
stanley-code ★ 87 TypeScript MIT 64
advocaat ★ 85 TypeScript MIT 70
skillranker ★ 83 Rust 66
jev-drone ★ 83 Python MIT 60
reflex ★ 82 Python MIT 61
jev-codex-router ★ 80 Python MIT 73
von ★ 78 Python Apache-2.0 59
youtube-sponsor-detection ★ 75 JavaScript 69
jevmeter ★ 72 Python MIT 55
jev-shell-history ★ 68 TypeScript 59
embodied-jev ★ 67 Python MIT 54
jev-skill ★ 64 Python MIT 67
open-jev ★ 63 Python 56
jev-gateway ★ 62 TypeScript MIT 62
typesafe-adblock ★ 58 JavaScript MIT 64
jev-browser ★ 56 JavaScript MIT 72
save-token-jev-clean ★ 56 TypeScript MIT 65
jev-chat ★ 56 TypeScript MIT 74
agent-router ★ 52 TypeScript MIT 68
jev-use ★ 51 Swift MIT 72

Related Categories

Frequently Asked Questions

What are the best typesafe jev tools in 2026?

The top typesafe jev tools in 2026 are jev-ultrafast, openjev, fast-jev-compaction. Agent Skills Hub ranks 68 options by GitHub stars, quality score (6 dimensions including completeness, examples, and agent readiness), and recent activity. The list is rebuilt every 8 hours from live GitHub data.

How do I choose between jev-ultrafast and openjev?

jev-ultrafast (10.6k stars) is the most adopted choice for general typesafe jev workflows, written in Python. openjev (1.4k stars) is a strong alternative. Pick by your existing stack: match the language and runtime your team already uses to minimize integration cost. If unsure, start with jev-ultrafast — it has the deepest community and the most examples online.

When should I NOT use a typesafe jev tool?

Avoid pre-built typesafe jev tools when (1) your use case requires deep customization that the tool's plugin system doesn't support, (2) you have strict compliance requirements that ban third-party dependencies, (3) the tool's maintenance is inactive (last commit >6 months ago), or (4) your data volume is small enough that a 50-line custom script is cheaper than learning the tool. For most production workflows above 100 requests/day, the time savings from a maintained tool outweigh the customization loss.

What's the difference between typesafe jev and browser-use, playwright mcp & ai browser agents?

TypeSafe Jev focuses specifically on open-source projects built on typesafe's jev decision model, security-graded: the jev-ultrafast browser agent, openjev, fast-jev-compaction, jev code review tools and mcp servers. vet before you install. browser-use, Playwright MCP & AI Browser Agents is a related but distinct category — see https://agentskillshub.top/best/browser-automation/ for those tools. The two often appear in the same agent pipeline but solve different problems: choose typesafe jev when your primary goal is the specific task, and browser-use, playwright mcp & ai browser agents when the workflow is broader.

Is jev-ultrafast better than building it yourself?

For most teams, yes. jev-ultrafast has 10.6k stars worth of community testing, handles edge cases you haven't thought of, and ships with documentation. Build your own only when (1) your requirements are deeply non-standard, (2) you have a security/compliance reason to avoid OSS dependencies, or (3) the maintenance burden is small enough (<200 lines of code) that you'll save time long-term. The break-even point is usually around 2-3 weeks of dev time saved.

Are these typesafe jev tools free to use?

Most typesafe jev tools listed are open source under permissive licenses (MIT, Apache 2.0). A handful offer paid managed/cloud versions on top of free self-hosted core. Always check the LICENSE file on each tool's GitHub repository before commercial use — some use AGPL or non-commercial restrictions that may not fit your deployment model.

How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy, covering 11 red-flag categories including credential harvesting, data exfiltration, and curl | sh installers. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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