Jev for JavaScript

188 curated Jev resources. JavaScript clients, SDKs, and tools.

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All 188 Jev resources for JavaScript

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Showing 145–188 of 188 resources

A DeepSeek Harness plugin that exposes System One decisions as agent tools and adds an opt-in auto-guard, with a labeled benchmark it re-runs against the live API.

Jev Agents & MCP#community#jevbest#catalog-import

Community

xienda/dsh-jev-verifyJavaScript

jev-browser-skill

Three dependency-free files that put Jev in a browser agent's hot path: code builds the choices from a table of visible controls, Jev picks an operation and target in one forward pass, and the code executes the pick.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

zurfyx/jev-browser-skillJavaScript

jev-organize

A Node CLI that reads a folder of Word, Excel, PowerPoint, PDF, email, CSV, HTML, code and text files, classifies each with Jev on OpenRouter, and writes a catalog, an INDEX.md and an offline report. Originals are never moved.

Jev Agents & MCP#community#awesomejev#catalog-import

Community

nexibeo/jev-organizeJavaScript

jev-practice-speed

WebGL demo of the card game Speed against a Jev-driven CPU, built to make decision latency and accuracy visible: every candidate move checked as a noul in one parallel request, a mechanical rule validator as referee, and p50/p95 latency panels.

Jev Demos & Experiments#community#awesomejev#catalog-import

Community

tubone24/jev-practice-speedJavaScript

jev-demo

A zero-build Node server and static page for trying Jev: send a state plus choice, score and noul questions and read back options, scores and calibrated probabilities, with a beta browser agent that drives a real browser through Playwright.

Jev Demos & Experiments#community#awesomejev#catalog-import

Community

PenglongHuang/jev-demoJavaScript

Jev-Research-Index

Bilingual static catalogue of work touching TypeSafe's Jev decision model, split into papers, projects and online materials. Every record carries its relationship to Jev, an evidence level and a verification date in plain JSON, readable without a database or an account.

Jev Practices & Patterns#community#awesomejev#catalog-import

Community

AgenticAPP-Web/Jev-Research-IndexJavaScript

tweet-radar

Free Chrome extension that scores tweets already loaded on your X page against criteria you write yourself, showing the probability as a badge. The substance is the prompts library of goals, judgment subjects and counter-examples; the extension is a no-build sideload with no store listing.

Jev Demos & Experiments#community#awesomejev#catalog-import

Community

kelaocai/tweet-radarJavaScript

LetJevDecide

Yes/no decision site that asks Jev and a fair in-browser coin and shows whether they agree. One relay call returns a verdict, the probability behind it and how significant a decision Jev thinks it is, behind crisis and not-yes-or-no gates. Plain HTML, no build step, no sign-up.

Jev Practices & Patterns#community#awesomejev#catalog-import

Community

choxos/LetJevDecideJavaScript

last-exit

Last Exit is a short cyberpunk checkpoint game where you type a cover story, present a manifest and offer a bribe to an inspector who decides whether to let you through. Each reply makes two Jev calls: one turns your statements into typed observations, the other picks his next action.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

0x963D/last-exitJavaScript

jev-rps

Jev RPS is rock-paper-scissors against TypeSafe's Jev with a commit-then-reveal protocol: the server seals Jev's move with a salted SHA-256 commitment and AES-256-GCM encryption before your buttons unlock, and the browser recomputes the hash after the reveal.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

0xlau/jev-rpsJavaScript

jev-shadcn-lint-eval

An eval that puts Jev two questions about shadcn-ui/lint: whether each finding is a real rule violation, and whether the linter's message tells you what to change. It runs the real linter over 131 rule test cases and scores both the detections and the messages.

Jev Practices & Patterns#community#jevbest#catalog-import

Community

blas0/jev-shadcn-lint-evalJavaScript

AskJev-MCP

MCP server built on TypeSafe's official JavaScript SDK. One `ask` call batches choice, noul and score questions over a single state and returns per-option probabilities plus a separate confidence value.

Jev Agents & MCP#community#jevbest#catalog-import

Community

cbruyndoncx/AskJev-MCPJavaScript

typesafe-minecraft-demo

Experimental Minecraft Java bot driven by direct TypeSafe choices, one movement pulse, turn, aim, mine or place per decision, with the real API request and response shown beside a live third-person world view.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

ellistev/typesafe-minecraft-demoJavaScript

pkg-gate

A pre-install gate for npm lifecycle scripts: pkgGate() pulls the preinstall, install and postinstall hooks from a package name, a path or a raw command, judges them with System One, and returns allow, warn or block.

Jev Tools & CLIs#community#jevbest#catalog-import

Community

hemanth/pkg-gateJavaScript

jev-play-ping-pong

Jev plays the hosted RALLY browser game live: structured telemetry in, typed Choice decisions out, executed through ordinary Chrome input by a dependency-free Node controller that records every decision it made.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

Icohen007/jev-play-ping-pongJavaScript

jev-t-rex-runner

The Chromium offline T-Rex Runner extracted into a standalone ES6 Runner class with no circular dependencies, plus an optional Jev controller that picks a maneuver and jump profile per obstacle.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

joshlarsen/jev-t-rex-runnerJavaScript

jevlens

A Manifest V3 Chrome extension that annotates X, Threads and articles with typed Jev decisions, analysing up to three post images locally and sending only sanitized structured evidence to the API.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

knowlet/jevlensJavaScript

beatjev

A Cloudflare Worker that races you against Jev over 25 spam-classification rounds: a countdown reveals a message, your tap and Jev's Noul question fire on the same tick, and the results screen compares speed and accuracy.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

lambertsj/beatjevJavaScript

discoprint

Classifies an artist's discography by theme, mood and lyrical complexity with Jev, then renders it as an Ink terminal dashboard. MusicBrainz supplies the discography, lrclib.net the lyrics, one batched call per track.

Jev Tools & CLIs#community#jevbest#catalog-import

Community

lirantal/discoprintJavaScript

jev-browser

A browser MCP server where Jev picks the next page action from locally ranked candidates in roughly 300 ms without LLM tokens, deterministic state diffs verify the step, and the driving agent steps in only on escalation.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

MahmoudAdelbghany/jev-browserJavaScript

JEVRACE is a public archive of a racing experiment: ten driver prompts, thirty recorded races and six circuits, watchable in the browser with no API key and no further inference calls.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

MartinPuli/f1JavaScript

naimono-lab

A Japanese word game for two to four players where you take turns inventing words nobody has said before. Jev judges whether each word exists across seven angles, and only boundary cases go to a second model.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

mocchalera/naimono-labJavaScript

misereru-slide-jev

A Japanese-language repository that continuously researches TypeSafe's Jev and System One models and organises the findings as Markdown slides, a presentation script and a standalone article.

Jev Practices & Patterns#community#jevbest#catalog-import

Community

myokoym/misereru-slide-jevJavaScript

sloppy-jevs-extension

Sloppy Jev's is a Manifest V3 Chrome extension that blurs AI-generated prose and ads, classifying extracted page text through jev-latest on the TypeSafe API. Plain JavaScript and CSS, no build step, MIT licensed, loaded unpacked.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

neddes/sloppy-jevs-extensionJavaScript

jev-compaction

Compacts Hermes transcripts by scoring every tool call with Jev: stale calls are dropped, stale results truncated, and protected tools such as write_file and patch are always kept. Nothing is ever summarised.

Jev Agents & MCP#community#jevbest#catalog-import

Community

picaye/jev-compactionJavaScript

cyber-breach-jev

A Three.js infinite-grid Tron arena shooter where Jev drives three systems: enemy combat choices and threat scores, a director picking encounters and pacing, and a P-key autopilot running 5-10 decisions per second. Ships with a local engine.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

rchovatiya88/cyber-breach-jevJavaScript

Search-Function-Test

Four commits on a vercel-deploy branch holding four HTR-questions JSON shards and an htr-hero directory — a test of asking a blog's articles as chat, with no build manifest at the root and no README.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

Shifros/Search-Function-TestJavaScript

terrarium

Sandbox where a small creature's controls are chosen by Jev while the code runs the world: one request per step, a Choice over eleven controls plus a per-object fan-out, and a decision log with every probability and every overruled judgment.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

TheGali/terrariumJavaScript

typesafe-chess

Two Jev players playing chess with no engine: code owns the rules and the tactical facts, and the model returns one Choice per legal move with a probability for each, plus a Score for the position and a Noul for sharpness.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

TholeG/typesafe-chessJavaScript

jev-agent-kit

jevkit is a single dependency-free Node binary exposing eleven Jev-backed decisions as both shell commands and MCP tools, including guard for gating an action, plus route, triage and semantic grep over log files.

Jev Agents & MCP#community#jevbest#catalog-import

Community

walidboulanouar/jev-agent-kitJavaScript

jev-board-lab

Browser-first workbench that turns selected CSV rows into Jev judgments: up to 20 Noul, Choice and Score questions per row, with the file parsed in memory and requests proxied through a Cloudflare Worker.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

WebGrga/jev-board-labJavaScript

jev-page-verdict

Manifest V3 Chrome extension that asks nine parallel Jev questions about the page you are on to separate advertising from first-hand account, across genre, stance, publisher, product and four Noul checks.

Jev Demos & Experiments#community#awesomejev#catalog-import

Community

torumitsutake/jev-page-verdictJavaScript

jev-gates

Claude Code plugin with nine Jev-judged gates over edits, prompts, shell commands, stops and commits. Each one escalates to a permission prompt, and none of them can approve an action.

Jev Agents & MCP#community#awesomejev#catalog-import

Community

rashedInt32/jev-gatesJavaScript

Astra-Ares

304

A source-only preview that builds a separate patched Codex CLI so Jev can raise or lower GPT-6 reasoning effort mid-task and decide how many generations the choice holds. Needs Rust, Node 22 and a native toolchain.

Jev Agents & MCP#community#jevbest

Community

miuuyy/Astra-AresJavaScript

djev-spark

221

A Docker Compose image that serves DiffusionGemma 26B-A4B on a DGX Spark behind Jev's systemone endpoint, adding seven not-yet-upstream vLLM perf branches and dependency-keyed multi-stage question reads.

Jev Models & Reimplementations#community#jevbest

Community

mmastrac/djev-sparkHTML

ai-backends

146

A self-hostable API server that fronts text, vision and data endpoints across Ollama, LM Studio, LlamaCpp and a long list of hosted providers, and also runs tool-using agents with sessions. Jev appears separately as a decision provider for typed choice, score and noul questions.

Jev Integrations & Adapters#community#jevbest

Community

donvito/ai-backendsHTML

changelog.earth

165

An unofficial changelog for Earth that renders recent reporting as game patch notes. A scheduled GitHub Actions job collects stories, Groq picks headlines for worldwide relevance and writes the patch titles, and the result is committed as saved editions the site, API and RSS read.

Jev Tools & CLIs#community#jevbest

Community

byalex33/changelog.earthJavaScript

quicksilver

118

A Claude Code skill that moves bulk judgment off Claude and onto Jev. You filter files, classify items, rank candidates or locate lines, and it returns typed verdicts, a shortlist with borderline markers, and a receipt of the tokens Claude did not read.

Jev Agents & MCP#community#jevbest

Community

UditAkhourii/quicksilverJavaScript

QuantStudio

Open-source workbench for quant research, office work and futures execution, where a JEV workspace watches markets through TypeSafe Jev against simulation accounts.

Jev Tools & CLIs#community#jevbest

Community

quantskills/QuantStudioJavaScript

awesome-jev (BeatAPI)

Curated index of decision-model projects grouped into ten types, with a fixed-commit source link per listing, task-shaped scenario guides, and an agent skill for searching it.

Jev Guides & Articles#community#awesomejev

Community

BeatAPI/awesome-jevJavaScript

jev-paint

Local MIT-licensed experiment that turns pixel probability distributions from a decision model into paintings, with question building, batching and rendering done in the browser.

Jev Tools & CLIs#community#jevbest

Community

achimala/jev-paintJavaScript

Jeview

A local gateway that forwards /v1/systemone to TypeSafe, stores each call in SQLite, and draws the calls on a live map.

Jev Tools & CLIs#community#javascript#local

Community

andududu/jeviewJavaScript

Astra and JEV Minecraft agent

584

A Mineflayer agent for Minecraft Java 1.16.5 where a planner sets the objective and Jev picks the next bounded action from game observations.

Jev Demos & Experiments#community#javascript#gaming

Community

rmalde/minecraft-agentJavaScript

Jev Plays Pokémon Red

127

A completed Pokémon Red run: Jev picked menus, catches, and moves from RAM, and the harness handled pathfinding. The public page records the Hall of Fame stats.

Jev Demos & Experiments#community#games#javascript

Community

christianmat/jev-pokemonTypeScript

Related languages

Languages that overlap with JavaScript.

Jev articles

Original guides that go deeper on Jev javascript.

All Jev articles

Per-Tick Decisions in Games

Sep 28, 2026

A game tick is a state plus a legal action list. How Clash Royale, Minecraft, and the earlier Mario, Pokémon, StarCraft, and drone loops ask Jev one step at a time.

Jev Demos & Experiments#gaming#agents#control

Read article

Watch: Jev in action

Video walkthroughs and demos from the community.

YouTube: Ryan Vogel runs Jev on 100 and then 1,000 emails: category, priority, spam, and reply predictions.

YouTube: AICodeKing tests support routing, refund detection, prompt-injection resistance, and browser automation.

YouTube: Retriever AI tests Jev on real browser tasks: where it worked, where it struggled, and what comes next.

Discussions about Jev

Threads from Reddit and Hacker News about building with Jev.

Hacker News: Pick Verify: a single decision at the warehouse pick station catches confusable picks.

Show HN: Verifying robot picks with a decision modelRead the thread on Hacker News

Hacker News: Decision Index 0.2.1 scores open reproductions of Jev on a frozen suite.

jackbravo4 pointsDecision Index 0.2.1 – 70 open reproductions of TypeSafe Jev's Decision ModelRead the thread on Hacker News

Hacker News: Software Bombe and live Enigma demo where Jev ranks cribs and judges plaintext.

ag_212 pointsShow HN: Jev as the Bletchley Park Analyst: A Software Bombe on EnigmaRead the thread on Hacker News

Hacker News: Show HN for the decide CLI: brew install, file context, and multi-question shell scripts.

vsekhar2 pointsShow HN: Decide – Jev decisions in the shell, scripts, and agent skillsRead the thread on Hacker News

From the Jev community

Posts from builders shipping with Jev right now.

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