Jev directory
Jev Cookbooks
110 curated Jev entries. Official, runnable Jev recipes that show what decision models are good at, each with its own datasets, latencies, and numbers.
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110- Docs23
- Repos & sites53
- Videos8
- Posts10
- Playgrounds16
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All 110 Jev Cookbooks
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Showing 1–48 of 110 resources
A text dataset of typed decision examples in parquet format, sized 1M to 10M rows. Rows carry state, question, target distribution, and provenance fields drawn from sources like MedQA and procedural rule-firing tasks.
Jev Cookbooks#catalog-import#python#classification
Community
Spanish-language course repository on Jev and System One, with five Google Colab labs written in pure Python stdlib: fast router, hybrid escalation, realtime guardrails, tool dispatch, and a 1,000-request benchmark, plus an English technical book PDF.
Jev Cookbooks#python#github#routing
Community0utKast/Jev_AI
A hands-on lab that arranges thirty real uses of Jev into ten levels: levels 1–5 call Jev from plain code, and levels 6–10 run inside the pi coding agent, ending with an agent that writes its own Jev questions.
Jev Cookbooks#community#github#typescript
Community
disler/ten-levels-of-jevTypeScript
disler/ten-levels-of-jevTypeScriptA single paste-in prompt for a coding agent that investigates what Jev, TypeSafe's structured decision model, could make possible in an existing project, from replacing parse-the-text calls to using semantic judgments as routine operations.
Jev Cookbooks#community#github#prompt
Community
ryana/jevify
ryana/jevifyA minimal repository whose entire README is a two-step recipe for building your own Jev: download Qwen, then make Jev. It is a signpost for readers who want to assemble a System One-style decision model from an open base model.
Jev Cookbooks#community#github#python
Community
nishtahir/build-your-own-jevPython
nishtahir/build-your-own-jevPythonSix small Python files that build one coding agent step by step on DSPy's RLM sandbox, with Jev answering closed questions — command safety, tool choice, history relevance, delegation — and plain Python owning the thresholds.
Jev Cookbooks#community#github#python
Korean-language Fastcampus seminar repo that teaches attaching Jev to a DeepAgents (LangGraph) shopping-mall support agent across 13 notebooks and a React sample app: tool selection, guardrails, risk gates and grounded RAG.
Jev Cookbooks#community#github#korean
Fifteen open-source go-to-market recipes built on TypeSafe Jev by bcharleson: code does the work, Jev makes the judgment calls, and each recipe runs locally on data you already own. The README reports 16,711 connections scored for $0.73.
Jev Cookbooks#community#github#gtm
A community curriculum of Jupyter notebook recipes that teach typed decisions with Jev, TypeSafe's System One model. Each recipe takes one bounded Choice, Noul or Score decision over text or image state, spanning first classification through closed-loop control.
Jev Cookbooks#community#github#python
Runnable samples for Jev, TypeSafe AI's System One model: each sample sends state plus questions that carry their own answer options and then branches on the typed value returned, including a README checker and an AGENTS.md readiness scorer.
Jev Cookbooks#community#github#samples
Community
aarora79/jev-samples
aarora79/jev-samplesRunnable Python examples for Jev, TypeSafe's first System One model: the README explains the three typed question primitives — Choice, Score and Noul — gives a venv install for Python 3.10+ and is explicit that the model cannot chat or generate text.
Jev Cookbooks#community#github#python
Community
ignitewala/system-onePython
ignitewala/system-onePythonA Chinese-language share pack on Jev and decision models: two long-form documents, eleven runnable Python examples, a live-demo notebook and a slide deck, covering the three primitives, batch calls, a confidence gate with LLM fallback and Chinese evaluation.
Jev Cookbooks#community#github#python
Community
jpegbert/JevJupyter Notebook
jpegbert/JevJupyter NotebookA small Python support-ticket triage pipeline: Jev judges every incoming ticket in one typed call, plain if statements decide whether it is worth a second pass, and an LLM writes a reply only when Jev's scores cross a threshold.
Jev Cookbooks#community#catalog-import#logicrw
An OpenRouter cookbook recipe that replaces a blanket human-approval rule with a per-call Jev check: the proposed tool call, ticket, and policy go to Jev, whose probabilities route to approve, block, or review.
Jev CookbooksDocs#community#catalog-import#cobanov
Community
An OpenRouter cookbook recipe for a draft-verify-escalate cascade: a cheap model drafts an answer from retrieved context, Jev votes supported, unsupported, or declined, and a frontier model rewrites only when verification fails.
Jev CookbooksDocs#community#catalog-import#cobanov
Community
A walkthrough that pairs Unsiloed document extraction with Jev: extracted medication rows and their citations become Jev's state, one Noul question per row flags implausible or obscured doses, and the results decide which fields need review.
Jev CookbooksPost#community#catalog-import#yibie
Community
A support-ticket cookbook that lets Jev decide which requests are worth remembering, then wraps each call so saved tickets ride along in the state. Six later messages route correctly with memory against two without.
Jev CookbooksDocs#official#cookbook#memory
Official
A live chat filter that asks three questions per message — category, toxicity, and spoilers — then turns the answers into show, highlight, dim, hide, or blur in plain code. The 29-message example hides seven, blurs two, and highlights six.
Jev CookbooksDocs#official#cookbook#moderation
Official
Korean lecture-lab code for a three-part Jev course plus a CCTV extra: first calls, agent-specific routers for Claude Code, Codex, and OpenClaw, keyless replays, Colab notebooks, and OneJev video judgment.
Jev Cookbooks#community#korean#education
Community
jkf87/jev-handsonJupyter Notebook
jkf87/jev-handsonJupyter NotebookReproducible recruiting cookbook that screens one resume against a job description in a single parallel Jev request of five Noul evidence gates, four Score dimensions and one background-routing Choice, with criteria iterated v1 to v3 against positive, negative and trap resumes.
Jev Cookbooks#community#recruiting#resume-screening
Describe a startup idea and Jev returns KILL IT, FIX IT, or SHIP IT from one request of ten scored questions, with goal-weighted scoring and a SQLite archive.
Jev Cookbooks#community#typescript#demo
Community
monteduro/killmyideaTypeScript
monteduro/killmyideaTypeScriptAn intraday trading bot for the Nifty 50: Jev ranks names every 15 seconds through the Vercel AI Gateway, and code sizes positions, stops, and flatten times.
Jev Cookbooks#community#typescript#trading
Community
arimanyus/warrendufferTypeScript
arimanyus/warrendufferTypeScriptA Japanese demo that asks Jev 0.5 seconds after speech ends whether the turn is really over, then extends the hold time based on the returned score.
Jev CookbooksPost#community#x#video
Community
Two browser games against a live Jev opponent: a first-person quick-scope arena and a neon survival challenge, where Jev picks tactics and authored code handles movement and physics.
Jev CookbooksPlayground#community#playground#games
Community
Four board games against Jev where the model picks the move and code keeps the rules: tic-tac-toe, Connect Four, Battleship, and Wordle.
Jev CookbooksPlayground#community#playground#games
Community
An autonomous Pac-Man recreation steered by Jev: before each junction the game sends the maze, actors, and legal directions as structured data, and Jev returns one direction with a probability per option.
Jev CookbooksPlayground#community#playground#games
Community
A playable Tetris where you can drop pieces yourself or let the TypeSafe Choice primitive pick every move.
Jev CookbooksPlayground#community#playground#games
Community
A live 3D chess match where Jev plays both sides with different personas and exposes the probability split behind every move.
Jev CookbooksPlayground#community#playground#games
Community
A 3D robot that understands without generating text: one TypeSafe call per turn with nine typed questions, then code decides whether to act, ask, or shrug.
Jev CookbooksPlayground#community#playground#embodied-agent
Community
A natural-language smart-room demo: describe a mood and Jev decides lights, curtains, TV, music, volume, and desk lamp in one request.
Jev CookbooksPlayground#community#playground#smart-home
Community
A first-person village where NPCs remember what you do and Jev decides how they treat you, with a board of 21 outcomes to earn before nightfall.
Jev CookbooksPlayground#community#playground#games
Community
A chaptered walkthrough with a Python demo repo covering Noul, Choice, and Score, parallel multi-question calls, and an autonomous triage loop.
Jev CookbooksVideo#community#video#python
Community
A two-hour recorded run of 50 financial workflows with saved outputs, baselines, and failures, from ledger integrity to AML triage and sanctions matching.
Jev CookbooksVideo#community#video#finance
Community
A video demo of Jev working through years of hoarded Twitter bookmarks in one pass instead of reading them by hand.
Jev CookbooksPost#community#x#video
Community
Alan's team built an intern-review console on Jev after 4,000+ applications: it checked 3,518 applications in 4 minutes 54 seconds and surfaced 20 for humans.
Jev CookbooksPost#community#x#video
Community
A ViZDoom agent with two Jev decision channels, navigation at 5 decisions per second and combat at 12, finishing a test run with 18 kills.
Jev CookbooksPost#community#x#video
Community
A Grammarly-like Mac app built on Jev to test how fast structured decisions feel in a real writing tool.
Jev CookbooksPost#community#x#video
Community
A small Kalshi trading bot across 15-minute and 1-hour BTC, ETH, and SOL markets, built with Effect and Cursor and powered by Jev.
Jev CookbooksPost#community#x#video
Community
Near-real-time A/B testing of TikTok and Instagram hooks against 100 rich personas, replacing a $1 to $5 per-run panel with a few cents of Jev.
Jev CookbooksPost#community#x#video
Community
Browser playground in the TypeSafe console for trying System One: paste state, define typed questions, and inspect answers with probabilities, confidence, latency, and usage.
Jev CookbooksPlayground#official#playground#demos
Official
A writing checker that runs seven named Jev questions, covering hedging, filler phrases, passive voice, tone, and actionability, and shows each verdict with its own confidence.
Jev Cookbooks#community#typescript#writing
Community
TypeSafeAI/clarity-judgeTypeScript
TypeSafeAI/clarity-judgeTypeScriptA System One harness that plays the original StarCraft shareware mission Strongarm by reading structured game state and issuing mouse and keyboard commands from Jev choices.
Jev Cookbooks#community#python#games
Community
phyous/tsai-scPython
phyous/tsai-scPythonPokémon Red under PyBoy where ordinary Python owns the route and arithmetic and Jev is asked only at branches, with each battle turn's faint prediction scored by Brier.
Jev Cookbooks#community#python#games
Live Hyperliquid desk across five isolated wallets where each tick packages the book, tape, and position as state and Jev answers Choice questions for long/short, open/close/hold, and leverage; hold sends no order. A missing private key means a dry run.
Jev Cookbooks#community#typescript#trading
Community
aowang-ai/jev-tradeTypeScript
aowang-ai/jev-tradeTypeScriptLocal Instagram, TikTok, and LinkedIn research app where Jev makes confidence-gated typed choices over the platform and next socai operation, while deterministic Node code validates each decision and the socai CLI performs read-only browser capture.
Jev Cookbooks#community#javascript#agents
Community
socai-io/jev-socialJavaScript
socai-io/jev-socialJavaScriptA Manifest V3 Chrome extension that finds ad-shaped DOM elements and asks Jev, one noul question per candidate, whether each is a paid advertisement; hits above the threshold are removed.
Jev Cookbooks#community#javascript#chrome-extension
Community
realZachi/typesafe-adblockJavaScript
realZachi/typesafe-adblockJavaScriptA small demo app that fetches a URL, turns the page into clean Markdown, and asks Jev ten bounded Choice questions about what a first-time visitor is likely to understand.
Jev Cookbooks#community#typescript#demo
A browser Snake game where code computes the legal moves, food distance, and reachable space and Jev picks one move per tick with a single Choice question; a late answer leaves the snake going straight.
Jev Cookbooks#community#typescript#games
Community
sorrycc/typesafe-snakeTypeScript
sorrycc/typesafe-snakeTypeScriptIndex of all 110 entries
- Fr0zencr4nE Jev Data
- Jev AI Course (0utKast)
- 10 Levels of Jev
- Jevify (investigation prompt)
- DIY Jev
- DSPy System One agent patterns
- Jev tutorial (Fastcampus)
- Jev Gtm Cookbook
- Jev Cookbook — jev-engineering
- Jev Samples
- system-one (ignitewala)
- Jev decision-model share pack (Chinese)
- code_2 — Fast decisions with Jev
- Gate Agent Tool Calls with Jev
- Cut LLM Cost with a Jev-Verified Cascade
- Document Review With Unsiloed and TypeSafe Jev
- Simple Memory System Cookbook
- Twitch Chat Filter Cookbook
- Jev Handson
- Jev Resume Screening
- Killmyidea
- Warrenduffer
- Voice turn-end detection with Jev
- JEV ARCADE
- Jev Plays — jevboardgames.everpaper.app
- Jev plays Pac-Man
- Tetris × TypeSafe
- Jev Chess — chess-jev.loomens.com
- Companion
- Room
- Hollow Creek
- Understand Jev (the only video you need)
- TypeSafe AI Jev: 50 Financial Jobs, Verifiable Demos & Honest Limits
- Jev runs through years of bookmarks
- 3,518 Intern Applications Checked In 4:54
- Jev plays ViZDoom with two decision channels
- A Grammarly-like Mac app built on Jev
- A Jev bot trading Kalshi markets
- A/B testing hooks against 100 personas
- Playground
- Clarity Judge — TypeSafeAI
- Jev plays StarCraft shareware
- Jev Plays Pokemon Red
- Jev Trade — aowang-ai
- Jev Social
- TypeSafe Fun AdBlocker
- Jev Web Analyzer
- Jev Plays Snake
- Jev Cookbook — nexibeo
- Neo4jev
- Askable arm
- PROMPT FPS
- Soupbase
- Jev Canvas
- Jev × Civilization II
- Jevtown — gaborishka
- Snake Jev
- Jev Bfs
- QuantDinger
- EmbodiedJev
- 2048 × Jev
- Human Compiler
- PocketJev
- RoboJEV
- Robo Harness
- Jevmail — fazlerocks
- Jev Leftpad
- Laya vs Jev — virajbhartiya
- Jev workflow builder
- Jev Chat — w3cj
- Jev × LIBERO
- RefGarden
- TypeSafe Experiments
- HEIST//ONE
- OpenRouter Labs: Prompt to questions
- JEV CHESS — jevchess.com
- Jev Wrapped — wrapped.ivanhabor.com
- Yes / No — Free Jev Demo
- Jev Fit
- TypeSafe Typewriter
- SemanticSpace
- A million judged questions
- Cookbook: Line-by-Line Search
- Cookbook: SDE Cascade
- Cookbook: Function Calling
- Cookbook: Knowledge Graph Entity Alignment
- Cookbook: Double-Checking Citations
- Cookbook: Self-Consistency for Choices
- Cookbook: Self-Consistency for Nouls
- Cookbook: Date Extraction
- Cookbook: Classifying RAG Passages
- Cookbook: Skill Suggestion
- Cookbook: Structure Recovery
- Cookbook: Autoresearch Feature Discovery
- Cookbook: Pre-Parsed Value Extraction
- TypeSafe Mario
- Jev Drone
- Jev Trading Bot Demo
- Classifying 1,500 Real Emails
- Browser Use with Jev + Stagehand
- Jev-Powered Browser Use Preview
- 700 Leads Scored for $0.09
- When a Designer Gets Jev
- A Live BS Meter on a Debate
- Cookbook: Parallel Questions
- Cookbook: Re-ranking
- Cookbook: Guardrails for LLMs
- Cookbook: Hierarchical Classification
- Cookbook: Classification Using Confidence
- Demo: Smart Home Assistant
Start here with the Jev AI model
Featured entries in cookbooks.
One question per query-candidate pair raises top-1 accuracy from 5% to 18% and top-10 accuracy from 38% to 62% on 40 CLERC legal queries.
Jev CookbooksDocs#official#cookbook#reranking
Official
Jev AI model articles
Original guides that go deeper on Jev cookbooks.
Retrieval is a sequence of bounded judgments. How a decision model slots into passage filtering, semantic find, reranking, and citation checks, and what stays in deterministic code.
Jev Cookbooks#retrieval#reranking#rag
Read article
Jev bills input tokens and gives output away, and questions in one request run in parallel. The design consequence is simple: ask more per call, then decide in code.
Jev Cookbooks#batching#patterns#search
Read article
From the Jev community
Watch walkthroughs, read the threads, and see what builders are posting.
YouTube: Retriever AI tests Jev on real browser tasks: where it worked, where it struggled, and what comes next.
YouTube: One terminal, three subscriptions, and Jev picking the model for Claude Code, Codex, and Cursor.
YouTube: A podcast segment on TypeSafe AI, its $40M raise, and the Jevons paradox behind the name.
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 NewsHacker 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 NewsHacker News: Pipeable onesie CLI with shell-safety exit codes and a calibrate mode over labelled commands.
frodikarlsson3 pointsShow HN: onesie – An expressive Unix-pipeable CLI for System One models like JevRead the thread on Hacker NewsHacker News: Spoken-language learning with video scenes branching on TypeSafe Jev.
j_rcht1 pointShow HN: Worklaude – learn by speaking; video scenes branch on TypeSafe JEVRead the thread on Hacker News