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MrJev

Projects built with Jev

619 open-source projects, each checked to actually call Jev (or reproduce it), and 279 of them installed and tested — look for the Reviewed badge. The list is maintained in MrJev/awesome-jev on GitHub; suggest a project there. GitHub stats updated Nov 2, 2026.

Not sure where to start? See the best Jev tools, tested hands-on →

Rising this week

  1. 1. agent-desktop▲ 6.6k
  2. 2. Laya▲ 521
  3. 3. OpenMuse▲ 479
  4. 4. jev-ultrafast▲ 400
  5. 5. jevgrep (dzhng)▲ 239
  6. 6. kev▲ 215

New this week

All projects

619 projects

New projects need 10+ stars to be added. Entries from before that bar stay until they go quiet, so a few small ones are still here — often the only client for their language.

Laya

★ 35k▲ 521

NandhaKishorM/laya

Non-autoregressive decision engine over 100+ languages: three checkpoints and a router that detects the script and dispatches per request. Its benchmarks end with a limits section naming the datasets it does not generalise to and the headline figure that came from a training split.

jev-ultrafast

★ 24k▲ 400

browser-use/jev-ultrafast

Fast browser agent from Browser Use. Jev decides each step and which element to act on; a small model is called only when text needs to be typed. The authors report a full Google Flights search in about 7.1 seconds.

kev

★ 9.8k▲ 215

jaredpalmer/kev

Jev-style decision models from 0.5B to 8B, built as LoRA adapters on Qwen and served behind a Jev-compatible /v1/systemone API.

agent-desktop

★ 8.5k▲ 6.6k

vercel-labs/agent-desktop

macOS desktop automation over accessibility trees. Since v0.9.2, its jev-desktop scripts let Jev choose which control to operate and which action to take.

Jev Chat Assistant

★ 8.2k▲ 105

jev-chat/jev-chat-jarvis

Android chat assistant that reads the conversation on screen through the accessibility service, has Jev judge the other person's intent and the risk, and fills in a drafted reply that you send yourself. Chinese and English editions.

fast-jev-compaction

★ 7.8k▲ 59

tamaratran/fast-jev-compaction

Claude Code plugin that replaces the compaction summary with Jev decisions. Every tool call and result is scored; stale ones are dropped or truncated, and everything kept stays verbatim.

OpenMuse

★ 6.1k▲ 479

CopilotKit/openmuse

CopilotKit's self-hosted personal agent with its own browser, terminal and files; Jev decides whether a reply becomes a clarification panel, a comparison of options or plain prose, and overrides the agent only when confident. Alpha.

Apps & Browser ExtensionsTypeScriptReviewed

SemIf

★ 4.9k▲ 35

TheoLeeCJ/SemIf-OpenJev

Jev-style decisions from a frozen 4B model on a single RTX 3090, with a browser demo. Formerly OpenJev.

jevgrep (dzhng)

★ 3.1k▲ 239

dzhng/jevgrep

Finds code by what it does rather than what it matches: a CLI for coding agents that asks which files and which regions are relevant to a description. Unrelated to the JevGrep above, which has the same name.

Command-Line ToolsTypeScriptReviewed

jev-trader

★ 3.1k▲ 31

jarrodwatts/jev-trader

Asks Jev buy or sell on every Monad block and places real post-only limit orders on the Kuru MON-USDC book. Not financial advice.

FinanceTypeScriptReviewed

Bespoke Nimble

★ 2.3k▲ 19

bespokelabsai/nimble

Open data, training recipe, and a 9B model for Jev-style choice and true/false decisions on Apple Silicon or NVIDIA GPUs.

jeff (Firelex)

★ 1.6k▲ 20

firelex/jeff

Qwen3.5 and Gemma 4 fine-tunes for zero-shot classification that take Jev's request shape. The author reports about 22 ms per decision on an RTX PRO 6000 and 28 ms on an M4 Max under MLX.

AnyJev

★ 1.6k▲ 75

nokia-applied-research/AnyJev

Turns any open-weights LLM into a typed decider by averaging the option logits over permutations and subtracting a label-free prior, so the answer barely moves when you reorder the options.

typesafe-computer-use

★ 1.3k▲ 16

awlevin/typesafe-computer-use

macOS computer use without sending screenshots to a large model. The screen is read deterministically and Jev picks the next action.

Hermes Jev Skills

★ 1.3k▲ 98

kerpopule/hermes-jev-skills

Bundle of skills that hand an agent's small decisions to Jev: model routing, skill selection, retrieval filtering, compaction, and computer use, with a routing dashboard. Works with Hermes, Claude Code, and Codex.

pg-jev

★ 1.2k▲ 24

realZachi/pg-jev

PostgreSQL extension to filter, rank, and classify rows with plain-language conditions.

Jev Browser Use

★ 1.2k▲ 10

wy-coliney/jev-browser-use

Browser skill that splits the work: Jev handles navigation, clicks, toggles and scrolling while the coding agent thinks and verifies. Uses your existing browser connection, with no extra driver.

Browser & Computer UseJavaScriptReviewed

decider

★ 1.2k▲ 15

Mapika/decider

A family of System One-style models that never generate text: one forward pass over a state and typed questions returns a probability distribution per question. Ships ten text games and a Super Mario Bros agent where each move is one typed decision over the legal actions.

Shapeshift

★ 1.1k▲ 16

anishfn/shapeshift

One text box that turns what you type into the right small interface, an event card or a checklist or a bill split, with Jev choosing which; falls back to rules when no key is set.

Apps & Browser ExtensionsTypeScriptReviewed

Rizzo Flow

★ 953▲ 19

Rizzo-AI-Academy/rizzo-flow

Local typed decisions from Spark-X2.5-4B over llama.cpp, serving both its own schema and Jev's /v1/systemone. Its /v1/models alias says in its description that it is not answered by Jev, and every published result names its dataset by hash.

jevos

★ 948▲ 31

feder-cr/jev

Serves /v1/systemone and /v1/models for yes/no questions only — other types are refused — from a GGUF model through llama.cpp on CPU, offline once the file is downloaded.

Von

★ 923▲ 4

wfzyx/von

Non-autoregressive System One model with Python and TypeScript clients, published on Hugging Face under Apache 2.0. The author reports sub-25ms inference.

Open Models & ReproductionsPythonReviewedArchived

vllm-jev

★ 923▲ 163

mode-io/vllm-jev

Serves decision models natively on vLLM, answering candidate probabilities over the System One endpoint.

Varina

★ 910▲ 133

deillusion/Varina

Multi-seat exploration engine for game mechanics and rule systems that diverges, fact-checks and repeats; Jev decides whether an answer deserves deeper exploration and whether a new idea is already on the board. Business Source License, in Chinese.

Apps & Browser ExtensionsJavaScriptReviewed

Valen

★ 899▲ 17

Valen-Team/Valen

Multimodal System One model, text and images and video in and decision probabilities out, with training and evaluation code and weights on Hugging Face.

JevChat-Windows

★ 869▲ 14

jev-chat/jev-chat-windows

Windows companion that reads chat windows, WeChat among them, by screenshot and offline OCR, has Jev judge intent and offers three replies to fill in. Sending stays manual. Chinese.

LocalJev

★ 838▲ 7

githubnext/localjev

Local Jev-compatible /v1/systemone server for Bun that asks DiffusionGemma for probabilities, from GitHub Next.

Open Models & ReproductionsTypeScriptReviewed

Foreman

★ 804▲ 17

thruwire/foreman

Puts Jev as a fast supervisor above slower coding agents such as Codex, starting from a ticket, spec, or bug report.

OpenJev

★ 771▲ 22

razorback16/openjev

Jev-compatible decision server on DiffusionGemma 26B-A4B through vLLM, including questions about images. TypeSafe's SDKs work against it unchanged.

jevbox

★ 754▲ 9

extend-hq/jevbox

Permission-aware document library: browse document trees and parsed output, search the hierarchy with Jev, and ask source-grounded questions.

Apps & Browser ExtensionsTypeScriptReviewed

Jev Review

★ 695▲ 4

devagrawal09/jev-review

Staged code-review workflow for JavaScript and TypeScript with a local dashboard. Jev screens correctness, security, reliability, compatibility, and test risk, then scores severity and suggests a reviewer, with no generative model involved.

jev-router

★ 650▲ 24

gargpratyush/jev-router

Per-turn model routing for Claude Code and Codex. Simple work goes to the fast tier and difficult work to the strong tier.

Model RoutingJavaScriptReviewed

Simple Jev

★ 638▲ 22

featherless-ai/simple-jev

Turns open Hugging Face models into a Jev-style classifier endpoint by reading next-token logits, with a public demo API.

Jev-cu

★ 631▲ 4

Sac-Y/Jev-cu

Codex computer-use skill where Jev picks the next element and action from on-screen text, with a local policy gate for sensitive steps. README in Chinese.

Browser & Computer UseJavaScriptReviewed

Abide

★ 619▲ 9

coldteadotai/abide

Hooks into Claude Code, Codex, and OpenCode, and asks Jev one question per rule whether each edit breaks your AGENTS.md or CLAUDE.md rules.

Guardrails & SafetyTypeScriptReviewed

mu

★ 572▲ 20

qybaihe/mu

Coding agent built on pi with a judgement kernel deciding the routine calls. Five languages.

jev-mcp

★ 566▲ 18

jkudish/jev-mcp

Proof-of-concept MCP server with ready-made tools for fact checking, prompt-injection detection, and semantic ranking.

JevHarness

★ 554▲ 13

TianyuCodings/JevHarness

Claude Code and Codex skill in which an LLM writes a task-specific harness that turns observations into typed Jev questions, then revises it from rewards and full traces. No licence yet.

Jev Search

★ 552▲ 6

superagents-lab/jev-search

Search the web in plain language: Jev answers typed questions about your request, and the app uses those judgments to pick the query, the sources and the time range before ranking what comes back. Installable from the browser as an app.

Search & Knowledge GraphsTypeScriptReviewed

DocJev

★ 546▲ 7

jerryjliu/docjev

Classifies and splits PDF, DOCX and PPTX with Jev and local OCR, asking one typed question per page and per boundary in a single request. Ships the manifest, per-call records and error analysis behind its benchmark.

Data & ObservabilityPythonReviewed

jev-chat/jev-chat-jarvis-mac

Read-only floating panel for chat apps on Apple Silicon Macs: reads the window through accessibility or OCR, judges intent and risk with Jev in the cloud or the open decider-2b model offline, and drafts replies in several styles. Chinese.

tax-doc-classifier

★ 515▲ 1

kyotofin/tax-doc-classifier

Classifies tax-document pages into IRS forms and page kinds with one Jev request per page, driven by a JSON file of form descriptions.

Data & ObservabilityTypeScriptReviewed

LLM2Jev

★ 478▲ 16

Yinsongxu/LLM2Jev

Adapts a local language model into a Jev-style decision engine, answering runtime-defined Choice, Score and Noul questions through SGLang.

JevRouter

★ 466

BillionsBobby/JevRouter

Routes each agent step to a model, subagent, Skill, MCP tool, or CLI with one Jev Choice, requiring confirmation for risky capabilities and keeping decision receipts.

Model RoutingTypeScriptReviewed

Mobile Jev

★ 459▲ 6

droidrun/mobile-jev

Android phone automation from DroidRun on its Mobilerun device cloud, with Jev choosing every operation and target. The author reports reaching Uber's payment selection in about 21 seconds.

Browser & Computer UseJavaScriptReviewed

Open-Jev

★ 440▲ 7

Zefan-Cai/Open-Jev

Open typed-decision models that return probabilities over candidates directly, without generating or parsing an answer, with a project site and reports.

Jeeves

★ 432▲ 1

PostHog/jeeves

A Jev-style classifier that reasons before it decides: Qwen3.5-9B with a LoRA and a pointer head, trained with SFT and CISPO, plus a diffusion drafter. From PostHog.

BridgeClip

★ 428▲ 49

bridge-mind/bridgeclip

Desktop app that cuts long videos into short clips, asking which moments are strongest and whether a cut still makes sense on its own.

Apps & Browser ExtensionsTypeScriptReviewed

agentrun

★ 423▲ 13

Parcha-ai/agentrun

A workflow DSL for agents with a Jev package for the steps that are decisions rather than generation.

voice-browser

★ 423▲ 2

moritzkremb/jev-voice-browser

Voice-controlled Chromium: on each partial transcript, one Jev request judges intent, target element, and whether the command is complete or destructive.

Browser & Computer UseJavaScriptReviewed

switch

★ 420▲ 170

osolmaz/switch

TypeScript framework for decision-model harnesses: your program offers a short list of next steps and the model picks one at a time until it can answer, with chess, wikirace and rubric-judge examples run on Jev.

imajev

★ 418▲ 9

mohit67890/imajev

Small open models at 2B, 4B and 9B that read the photos, records and text a business already has and answer in the options you set, with a probability on each and an explicit "can't tell" that sends the rest to a person.

Jev experiments

★ 412▲ 3

dabit3/jev-experiments

Latency-focused demos from Nader Dabit, each app in its own directory with its own README. No licence file at the time of writing.

Games & Real-Time DemosTypeScriptReviewed

AgentJev

★ 397

malevrigns/agent-jev

A 0.6B decision model on a Qwen3 backbone with weights on Hugging Face: state in, a distribution over your options out, nothing decoded.

HiRoute

★ 371▲ 20

higress-group/HiRoute

Local-first routing and coordination engine for long-running agent work, with a jev-decider extension that routes on typed decisions.

Jev Browser

★ 366▲ 22

jkudish/jev-browser

Headless browser automation through an MCP server, CLI, or library. Jev picks one action per step.

Browser & Computer UseJavaScriptReviewed

perch

★ 358▲ 6

lakeday-org/perch

Semantic linter that reads each method together with its callers and callees before asking about it. Rules are sentences in a YAML file.

Keel

★ 355▲ 18

codejunkie99/keel

Local-first macOS workspace around the coding agents you already run: a local Laya selector, or an optional hosted one, proposes the route and the host checks it before Keel applies it.

Bops

★ 347▲ 9

OrgoAI/bops

A team of AI bots that run business operations on their own computers, each with email and a phone number; Jev handles the small yes/no calls, such as whether a request is risky and which bot should take it. Functional Source License.

Crush Monitor

★ 334▲ 7

FerryCorleone/crush-monitor

Reads a WeChat conversation and labels each message with emotion and intent, rating how your own replies landed. Local, with your own key.

Apps & Browser ExtensionsTypeScriptReviewed

beebots

★ 334▲ 6

imikerussell/beebots

Three trading bots race on OKX perpetual futures with every decision typed and a risk layer in plain code; paper trading is the default. Not financial advice.

FinanceTypeScript

EmbodiedJev

★ 331▲ 8

FBddcz/embodied-jev

MuJoCo robot decision workbench in the browser: three simulation tasks, a local small model or a hosted API, and every observe-decide-act step shown.

Robotics & EmbodiedPythonReviewed

JevBench

★ 327▲ 16

fstandhartinger/jevbench

Benchmark for typed decision models across several suites, with confidence cascades and committees reported separately.

Jev Visual

★ 326▲ 4

hr98w/jev-visual

Multiple typed questions about one image in a single pass, on Qwen3.5-0.8B with MLX on Apple Silicon. States plainly that it explores the pattern and does not claim to reproduce Jev's architecture or training. Chinese and English.

arc-cua

★ 324

shhivv/arc-cua

Lets a planner hand bounded desktop subtasks to a decision model that runs the UI loop, with a lean macOS driver usable on its own.

jev-gateway

★ 323▲ 1

vinilana/jev-gateway

Local gateway for Codex and Claude Code that asks Jev which tool to call next and passes everything else to your usual model.

Model RoutingTypeScriptReviewed

Astra-Ares

★ 314▲ 4

miuuyy/Astra-Ares

Adjusts a Codex task's reasoning effort mid-run by asking Jev how hard the next step looks. Runs a patched Codex CLI and says it is a reference implementation rather than an app.

Model RoutingJavaScriptReviewed

jev-align

★ 313▲ 2

sutro-sh/jev-align

CLI from Sutro that finds the examples a Jev function is least sure about, asks you to label them, and uses GEPA to improve the question.

jeff

★ 313▲ 2

logan-markewich/jeff

Self-hosted implementation of Jev's System One API on the 400M-parameter GLiFormer model. The official SDK works after changing the base URL.

effortless

★ 311▲ 39

HeyCubit/effortless

Claude Code mod that picks the reasoning effort for every prompt, shows prompt-cache and context state, and hands off or compacts in one click; Haiku by default, Jev with a TypeSafe key.

Heman10x-NGU/openJev-verdict-2.0

A 151M non-autoregressive decision model on ModernBERT with calibrated uncertainty and an in-browser WebGPU playground. Its LICENSE is not recognised as the Apache 2.0 its badge claims.

jiwo

★ 302▲ 75

jiwidi/jiwo

Small open decision models fine-tuned from Qwen3.5 (0.8B and 4B, Apache-2.0) with a server that speaks Jev's POST /v1/systemone format: one forward pass, a probability per option.

Chrome Relay

★ 285▲ 3

aindeev/agent-chrome-relay

Lets coding agents use your signed-in Chrome on macOS in background tabs, carrying out a whole goal per command with Jev (or Claude Haiku through Claude Code) choosing only the steps it cannot fill or replay. With Jev on, page text of agent tabs goes to TypeSafe.

VideoJev

★ 285▲ 32

MCG-NJU/VideoJev

Open 4B and 35B-A3B System One models for video, which answer temporal-grounding and multiple-choice questions by scoring candidates instead of generating text. With training code and a paper; needs an NVIDIA GPU.

0xNatoshi/jev-codex-router

Picks the model, reasoning depth, and speed mode for every Codex turn based on how hard Jev judges it to be. The author reports about 60% lower cost when replaying 237 real turns.

Coding Agents & Developer ToolsJavaScriptReviewedArchived

Devin-AXIS/jev-dsh-decision

Decision plugin for agent harnesses: Jev picks the tool, skill or owner and scores the output, while the agent keeps planning and execution. Ships for DeepSeek Harness and iPolloWork.

Ten Levels of Jev

★ 264▲ 10

disler/ten-levels-of-jev

Thirty worked uses arranged in ten levels, from one if statement to an agent that reaches for Jev itself, with a video walkthrough.

Libraries & IntegrationsTypeScriptReviewed

jev4pg

★ 260▲ 2

Sheltercosmo/jev4pg

A self-developing SQL database with semantic operators and natural-language queries backed by Jev.

Jev-Mem

★ 254▲ 13

libingzheren/Jev-Mem

Memory layer for long-running agents that routes the frequent memory-management decisions to Jev and leaves the deeper reasoning to the LLM. Comes with a paper.

LLM Wiki v2

★ 252▲ 5

crow-hq/llm-wiki-v2

An LLM-maintained wiki on Google's Open Knowledge Format with librarian and researcher agents, where a System One classifier (Jev via OpenRouter or TypeSafe, or a local server) routes each question to the right note. AGPL-3.0.

compact-adviser

★ 228▲ 4

kunchenguid/compact-adviser

Agent plugin that asks Jev whether the session is at a safe point to /compact, and can run it automatically on Pi and Claude Code.

brainstormity/Jev-X-Sentiment-Analysis

Crypto terminal that reads up to 1,000 posts about a ticker alongside market and funding data and turns them into a buy, sell, hold, or take-profit call. No license file at the time of writing. Not financial advice.

FinancePythonReviewed

Jev Trade

★ 225▲ 2

aowang-ai/jev-trade

Hyperliquid trading bot based on jev-trader, where Jev decides buy, sell, or hold on every tick for five coins. Dry-runs without a private key.

FinanceTypeScriptReviewed

Jeva

★ 224▲ 35

LiQiiiii/Jeva

Open 4B System One model with Jev's Choice, Noul and Score question types, plus evaluation and fine-tuning code and a paper. Needs an NVIDIA GPU.

OneJev

★ 219▲ 25

OmniJev/OneJev

Multimodal decision model answering typed questions about screenshots, photos, video and text in one forward pass. English, Chinese and Japanese.

ESF

★ 217▲ 17

mitkox/esf

Self-hosted software factory: coding agents in microVMs, changes verified, and the patch and execution evidence kept, with Temporal coordinating the workflow.

OmniStudio

★ 214▲ 4

kunpengtalk/OmniStudio

Local-first desktop workbench for llama.cpp, vLLM and SGLang that also serves /v1/systemone through its own gateway, with the contract written down field by field. Chinese.

System One Harness

★ 207▲ 4

HarnessRouter/SystemOneHarness

Turns a decision model into an agent loop: it compiles the environment's finite action space into typed questions, gates each step by confidence, and records the trace.

dsh-jev-plugin

★ 202▲ 4

luobosibing2/dsh-jev-plugin

Eleven DeepSeek Harness judgments - skill and file selection, supervision, tool-output filtering, approval help - each configurable and all off by default. The main model still plans and answers.

Jev Social

★ 195▲ 15

socai-io/jev-social

Instagram, TikTok and LinkedIn research where Jev chooses each next operation and a real Chrome session executes it, with the evidence kept.

Mobile Agent

★ 189▲ 12

KYRIE66nb/mobile-agent

On-device Android agent that reads and taps any app through accessibility and vision; its allow / confirm / block safety gate can be handed to Jev or a self-hosted Laya over /v1/systemone, off by default. In Chinese.

Jevmind

★ 186

dealerdefi/Jevmind

Nine skills over one brain: a shell-command gate, a diff triage, a router and more, each decision appended to a hash-chained ledger that names any record edited afterwards. Runs offline on local reflexes or against Jev.

Guardrails & SafetyPythonReviewed

SiliconLabAI/OpenJev

Approximates the System One contract on top of any logprob-capable model: a fixed answer space, each option scored independently, all questions in parallel.

Open Models & ReproductionsTypeScriptReviewed

neo4jev

★ 182▲ 1

jexp/neo4jev

Navigates a Neo4j graph by having Jev score neighbouring relationships, then beam-searching for the most probable path.

Search & Knowledge GraphsJupyter NotebookReviewed

system1-agents

★ 178▲ 1

ThinkFlowLab/system1-agents

Prebuilt agents whose decisions come from a System One model, Jev or an open one, covering browser use, computer use, robotics and games, with a scaffold for building your own.

pi-warden

★ 177▲ 2

DevMortimer/pi-warden

Guardrails for the Pi coding agent. Jev judges every write and edit against the rules in pi-warden.md.

Guardrails & SafetyTypeScriptReviewed

bgts-ai-org/bgts-context-engine

Deterministic code-graph context for coding agents on PostgreSQL, Apache AGE and pgvector, over MCP and REST; Jev or a local decider model can optionally re-select the ranked symbols, failing open to the plain ranking.

reflex

★ 173

kshetrajna12/reflex

A small open decision model for your own GPU: fixed answer options in, per-option percentages out, with no free text so it cannot answer off the list.

OmniJev

★ 173▲ 5

tinnel123666888/OmniJev

Omni-modal decision model from Beijing Zhongguancun Academy and CASIA: typed questions about images, video, screens and robot scenes, with weights on Hugging Face.

fastbrowse

★ 172▲ 53

agent-labs-dev/fastbrowse

Browser agent that indexes the page into candidates for Jev to pick from, leaves planning and reading to an LLM, and cites a quote from the page for every claim.

jev-pruner

★ 166▲ 1

tamaratran/jev-pruner

Claude Code plugin that uses Jev to trim long Bash output before it reaches the model, leaving errors, source code, and structured output untouched.

Jev GUI Delegate

★ 166▲ 28

YUTA-fywoo/jev-gui-delegate

Windows and Chrome GUI delegation for Codex: the model hands over a task contract, a local controller runs deterministic steps, and low confidence stops for a person. Chinese.

pi-jev

★ 165▲ 2

y0usaf/pi-jev

Jev as a decision layer for the Pi coding agent in three places: a gate that judges bash, write and edit calls before they run, an output judge that reads what a bash call printed, and a tool the model can call directly.

JevForge

★ 164

zwliJay/jev-forge

End-to-end toolkit for the other direction: synthesise decision data, train a calibrated candidate scorer on it, evaluate it, and serve it behind a Jev-compatible endpoint.

webctl

★ 163▲ 1

dorkitude/webctl

Search CLI for agents: results from up to three backends are scored by Jev against your query and an explicit --goal, and only the relevant ones reach the agent's context. Its benchmark excludes an arm it could not observe.

RikkaHub Plus

★ 163▲ 26

MiaoWuNYA/rikkahub-sillytavern-android

Android chat client with a built-in Jev client: it scores stored memories for relevance in batches before retrieval, and exposes Jev to the model as a callable judgment tool. Endpoint and key are set in its settings. Chinese documentation.

macbrow

★ 160

timpratim/macbrow

Say a command and it runs as AppleScript, or say a web task and it drives Chrome. Its README opens with a warning about an early version tidying a Desktop rather thoroughly.

Supercov

★ 159▲ 2

supercorp-ai/supercov

Coverage, security and code quality for coding agents. Jev answers twelve quality and twelve security questions about each source file, and the CLI ranks the files so the agent knows what to fix first.

JevK5

★ 158

allebee/jevk5

Open-weight decision model that serves the /v1/systemone request shape from your own GPU, with weights on Hugging Face.

PZ_Optimization

★ 157▲ 18

xD3I/PZ_Optimization

Performance work on a game, notable here for the harness: the arithmetic and the noise floors are computed in code, and Jev is asked only for the verdict on what the numbers mean. No licence file.

sys1grep

★ 150

uehaj/sys1grep

Greps by meaning rather than pattern, scoring every line against a description and combining meanings with AND, OR and NOT; a single dependency-free Node file. Japanese and English. Formerly jev-semgrep.

Command-Line ToolsJavaScriptReviewed

Jev Code Reviewer

★ 149▲ 1

egma-ai/jev-code-reviewer

Reviews your own agent's pull requests on your machine and posts nothing to GitHub, prioritising where a human should look rather than restating the diff.

jev-guard

★ 144▲ 17

leepokai/jev-guard

Risk-scores every tool call against session context into deny, ask, or allow, and flags prompt injection in tool results.

Guardrails & SafetyJavaScriptReviewed

dasheng

★ 144

wquguru/dasheng

Read English aloud and see which words were wrong: streaming speech recognition transcribes, Jev judges word by word, and both models can run on your own GPU.

Apps & Browser ExtensionsJavaScriptReviewed

quicksilver

★ 142▲ 12

UditAkhourii/quicksilver

Claude Code skill for the bulk judgement calls — which of these files, which of these log lines, which of these tickets — that otherwise get read one by one.

jgrep

★ 140▲ 1

keltokhy/jgrep

Like grep, but the pattern is a description: it filters piped output as well as files and prints a probability per line.

Command-Line ToolsPythonReviewed

cobusgreyling/Jev

Offline-first FastAPI lab for learning Jev: operator cards, a cost lab, a primitives playground and pattern pages, with an optional live judge against TypeSafe.

jevmem

★ 137▲ 4

Avinash-jetwani/jevmem

Automatic project memory for Claude Code, Cursor and Codex, with typed decisions choosing what is worth remembering.

Jev × WebMCP

★ 133▲ 1

sdras/jev-webmcp-extension

Chrome extension that discovers the WebMCP tools a page exposes and has Jev choose which one a sentence means, then fills in its arguments.

Canny

★ 132▲ 7

qkal/Canny

Stop hook for Claude Code and Codex CLI that refuses a "done" while no check has passed since the last edit. Jev can only relax that refusal and never cause one, and it still blocks with no API key at all.

Guardrails & SafetyTypeScriptReviewed

Prism

★ 132▲ 1

irfndi/prism-liquidity-agent

Liquidity-provision agent for Meteora DLMM. Jev judges toxic flow, market stress, and mean-reversion likelihood in shadow/advisory mode only, without driving trades. Not financial advice.

FinanceTypeScriptReviewed

Jev Voice

★ 131▲ 5

kevinbadi/jev-voice

Local whisper.cpp for the transcript, then one Jev request picks the action and its typed arguments; code owns execution.

first-pass

★ 129▲ 8

joetawil7/first-pass

Claude Code plugin with rules and checks that make the agent look around a change before calling it done; an optional Jev judge decides whether a review finding is real harm and what proof a small fix needs.

JevAny

★ 129▲ 11

SimpleJev/JevAny

Infrastructure for training, evaluating and deploying decision models across language and multimodal backbones, with calibrated LoRA checkpoints on a 27B backbone. English and Chinese.

jev-use

★ 128▲ 2

savka777/jev-use

macOS computer use by voice or typing that reads the screen through the Accessibility tree rather than screenshots. Key stored in the Keychain.

RSI-Jev

★ 128▲ 4

Shanghua-Gao/RSI-Jev

Typed-decision checkpoints produced by a self-improving loop of agents that register predictions before spending GPU time, published with the code that produced them.

codegirl-007/jevlint

Extracts code units with Tree-sitter and asks whether each passes a rule written in plain language; prebuilt binaries. Unrelated to the JevLint above.

Grok Bot Jev Router

★ 126▲ 11

Bodila51/grok-bot-jev

Classifies a Grok Bot request before expensive research, browser, retry, or subagent work, so it can reuse a fresh artifact or stop a failing retry.

Model RoutingPythonReviewed

jev-lint (mizchi)

★ 125▲ 1

mizchi/jev-lint

Checks whether a function does what its name says, whether a comment is still true, and whether a test verifies what it claims, with a cutoff per rule.

lurk

★ 124▲ 1

getanyapi-com/lurk

Self-hostable Reddit buyer-intent finder that uses Jev to judge every post and comment a scan reads.

Apps & Browser ExtensionsTypeScriptReviewed

QuantStudio

★ 124▲ 9

quantskills/QuantStudio

Local research and trading workbench with a Jev module that watches positions and grades trade plans. Chinese. GPL-3.0.

Jev Chat

★ 122▲ 3

w3cj/jev-chat

Chat-style command bar where Jev picks the tool, arguments, and reply type, and code builds every reply from tool data.

Apps & Browser ExtensionsTypeScriptReviewed

jegrep

★ 121▲ 4

can1357/jegrep

Semantic grep with no embeddings, index, or daemon: it searches the live tree on every run and matches concepts rather than strings.

Command-Line ToolsRustReviewed

hey-jev

★ 121▲ 4

henryklunaris/hey-jev

Mac voice assistant that maps what you said onto an action - apps, windows, volume, Spotify, dark mode - and handles two instructions in one sentence.

Jevry

★ 118▲ 1

michaelswissa/jevry

Desktop browser agent where a language model plans, a decision model picks the action, and Chromium carries it out.

Winnow

★ 115

GhalebDweikat/winnow

Context sieve for Claude Code. Jev judges each tool result (Read, Bash, Grep output) for relevance before it enters the context window.

OpenDecision

★ 115▲ 7

deepanwadhwa/OpenDecision

Open-source semantic decision engine: state, a question in natural language, and answer criteria in; a structured decision out.

jev-as-a-judge

★ 113▲ 3

danielgshea/jev-as-a-judge

Uses Jev through langchain-typesafe as the judge in an eval suite, asking typed quality questions instead of asking a larger model to grade. No licence file.

Multi-UAV-JEV

★ 113▲ 2

YongLD/Multi-UAV-JEV

Camera-observed drone pursuit in MuJoCo where each decision is a /v1/systemone call, by default to a local NeoHorse-Jev-4B server (BF16 CUDA GPU), with an RGB/depth HUD, replays and episode collection. Apache-2.0.

sieve

★ 111▲ 6

Sev7eEn7/dsh-sieve

DeepSeek Harness plugin that filters tool output, prunes old context and discloses skills progressively, with Jev or Laya as the judge of what can go; it never uses the session's own model for that. English and Chinese.

laya-php

★ 110

marcreichel/laya-php

Laravel-ready PHP client for Laya, the open System One model, so a typed decision is a PHP enum rather than a parsed sentence. Self-hosted, no Jev key.

Community SDKsPHPReviewed

jevals

★ 110▲ 3

openlayer-ai/jevals

Agent evals and guardrails as typed questions instead of an LLM judge, packing every eval for a trace into one request. From Openlayer, with a mock backend so the whole library runs without a key.

JevGrep (Arifette)

★ 108▲ 3

nassim-arifette/jevgrep

Semantic code search for agents, as a CLI or MCP server: ask what the code does and get source excerpts with paths and line numbers.

Command-Line ToolsTypeScriptReviewed

BudEcosystem/Bud-Decision-Studio

Desktop app and local server for open Jev-style decision models on macOS, Windows and Linux: pick a model, ask typed questions, read every answer as a chart, or call it over a /v1/systemone-compatible API. No licence file yet.

Jevmail

★ 105▲ 2

fazlerocks/jevmail

Read-only Gmail triage that sorts an inbox into five trays with an urgency score, running locally through a gateway key.

Warren Duffer

★ 103▲ 2

arimanyus/warrenduffer

Intraday bot for two Indian brokers where Jev ranks Nifty-50 names in two stages; it places real MIS orders and has no paper-trading mode. Not financial advice.

FinanceTypeScript

Advocaat

★ 101▲ 1

pithings/advocaat

Small type-safe TypeScript client for asking Jev about your data, with an agent skill for designing questions.

Libraries & IntegrationsTypeScriptReviewed

Blink

★ 101▲ 1

ellipsis-dev/blink

Semantic codebase search. At each directory level Jev ranks which files and folders are most likely relevant and sends more walkers there.

Search & Knowledge GraphsTypeScriptReviewed

jevchat

★ 100▲ 1

kyle-pena-nlp/jevchat

Turns a decision model into a chat model by asking which symbol comes next, then sampling from the returned distribution.

wobsoriano/oxlint-plugin-jev

Oxlint rules written as plain-English questions about a function, call, JSX element or file, reported when the yes-probability clears your cutoff.

lyuyiqi/open-jev-fast

Faster inference backend for Open-Jev-27B: fused CUDA kernels, a prefix tree and CUDA graphs. Needs an Open-Jev install and its weights.

jev-libero

★ 88▲ 5

Dimweaker/jev-libero

Fine-grained robot control on LIBERO tasks with physics previews and configurable task definitions.

Robotics & EmbodiedPythonReviewed

claude-x-jev

★ 85▲ 11

charlesdove977/claude-x-jev

Claude Code skill and commands that hand sorting, checking, scoring and gating to Jev over OpenRouter, with presets for jobs such as email triage, plus an optional hook that, once switched on from shadow mode, lets Jev approve tool calls it is confident about.

Touxian

★ 85

sssssjw11/touxian

Desktop and Android attention workbench: reads your notifications, checks what they rest on, and tracks the deadline rather than the fact that you saw them. Chinese.

f/jev-leftpad

Left-pads a string by asking Jev to choose how many spaces are needed, from zero to ten. A joke package, and a short look at a single Choice call through the official SDK.

giuliosmall/pg_typesafe

Pre-alpha PostgreSQL extension that calls Jev from SQL for Choice, Noul, and Score, with EXECUTE revoked from PUBLIC by default.

Decision Index

★ 84▲ 4

apolinario/decision-index

Reproduction kit for a public leaderboard of typed decision engines: runs the public text suite against any /v1/systemone endpoint, locally or as one Hugging Face Job. Not affiliated with TypeSafe.

SemDecide

★ 83▲ 2

sharziki/semdecide

Unix-style CLI for typed semantic decisions: classify, score, filter, and guard inside shell scripts, CI, and data pipelines.

Command-Line ToolsPythonReviewed

jevcrawl

★ 82

RayenMlayeh/jevcrawl

MCP server and CLI that crawls a site for an agent's question, with Jev scoring pages and links to decide what to follow and which passages to return verbatim with sources.

AustinAWay/Working-Memory-Jev

Localhost tool for educators that flags where instructional text may ask a reader to hold too many ideas at once. Its evaluation opens by naming the two tests its own model fails. Custom licence, not open source.

Mica

★ 82▲ 34

akivet/Mica

HTTP server for Mica, a 4B open decision model (Apache-2.0, now v0.5 Preview) run as GGUF through llama.cpp: yes/no, a choice among 2 to 255 options, or a score, in TypeSafe's /v1/systemone shape. The Docker image needs a CUDA GPU.

omp-optchat

★ 81▲ 3

ericjuta/omp-optchat

OMP plugin for one endless chat kept in a binary tree of summaries, with five Jev gates through OMP's judge role: standing rules, history prefetch, compression hints, tool-call screening and recall. The gates send judged text to the judge's provider. No licence file.

neatroots

★ 81

neatlogs/neatroots

Local-first viewer that records, checks and replays an agent's runs; its yes/no checks go to a Jev-compatible decision model, local Laya by default or Jev when you opt in.

Jev Desktop

★ 79▲ 3

yikangy873-gif/jev-desktop

Adds a bounded decision loop to Codex Computer Use for browser tabs and native macOS apps.

Browser & Computer UseJavaScriptReviewed

jevcache

★ 78

hyperspaceai/jevcache

Local decision cache keyed on (model, schema, state), with redaction and canonicalisation before hashing, for cheaper repeats and deterministic replay in CI. No license file at the time of writing.

decision-cascade

★ 78▲ 1

slavabars/decision-cascade

Local decision engine with trainable Noul, Choice and Score heads over a text encoder, ECE and Brier calibration, a cheap-to-strong cascade and a POST /v1/systemone server. Documentation in Russian.

brainstormity/System-One-Computer-Use

Prototype screenshot loop that asks Jev for the next click, keystroke, scroll or site to open and carries it out with pyautogui or on an Android phone over adb, with a local dashboard that records each run. It controls the real mouse and keyboard.

system-one

★ 75▲ 1

iamaamir/system-one

Provider-neutral TypeScript runtime for typed decisions: the same call runs against Jev, a local implementation, or any /v1/systemone endpoint. No licence file.

Libraries & IntegrationsTypeScriptReviewed

stuntd

★ 74▲ 1

bladedevoff/stuntd

Local proxy that speaks the System One protocol, records the typed decisions an app already makes, and learns to answer them itself.

Model RoutingPythonReviewed

JevEmbed

★ 73▲ 1

HITsz-TMG/JevEmbed

Choice, score and noul decisions read out of an embedding model of your choosing, with a Python API, a CLI and an optional HTTP server.

pi-jev

★ 72▲ 3

TheoOliveira/pi-jev

Semantic tool routing and skill discovery for the Pi coding agent: Jev picks which inactive tools to activate for the prompt at hand.

tomerglick57/Jevstiller

Sits in front of a repeated classification call, trains a local model on Jev's own answers and their distributions, checks the two agree within a budget you set, and then answers most requests itself.

JevIntent

★ 70

Nisaka520/JevIntent

WeChat plugin that reads intent, tone and reply posture from a long-pressed message and shows the verdict locally. Sends nothing and changes no chat history. Chinese.

OpenJev

★ 70▲ 4

alanhuangyoo/OpenJev

Open decision models (1.7B to 8B) trained by distillation for general decisions and browser-agent steps, served behind the POST /v1/systemone shape, with training code and results. Apache-2.0.

iapp-technology/openthai-systemone

Thai and English decision model with a slot-softmax head whose request and response shape mirrors the official API, so existing SDK code can point at it.

nace-ai/drex-decision-models

Nace.AI's open decision models, Drex v1.5 on a 9B Qwen-based backbone and Drex DLM on NVIDIA's Efficient-DLM-8B diffusion backbone, each answering POST /v1/systemone from a Python server or forks of llama.cpp and Ollama. Formerly drex-dlm; Drex DLM weights under CC-BY-NC-4.0.

chigwell/typesafe.pro

The full server behind api.typesafe.pro, a free anonymous front door that speaks Jev's request shape and forwards to TypeSafe on the operator's own key. AGPL-3.0, so you can run it yourself.

jev-rules

★ 66

EliaAlberti/jev-rules

Scores your standing Claude Code instructions against each prompt and delivers only the ones Jev picks, once per session rather than per message. Ships a pane that shows which rules were chosen.

Jeview

★ 66▲ 1

andududu/jeview

Local gateway and live map of every Jev call your code makes, in one dependency-free file. It holds the key itself: a caller's own bearer token is dropped rather than forwarded, and with no key set it will not proxy at all.

Data & ObservabilityJavaScriptReviewed

JEV DataOps

★ 66▲ 1

RenaGao/jev-dataops

Traceable pipeline for training data: upload, screen with Jev, evaluate, fine-tune your own model, then evaluate the result, through a browser workbench or a CLI.

feelings

★ 65

obie/feelings

Probabilistic conditionals for Ruby, Feelings(message).like?("genuinely urgent"), answered by a decision model through ruby_decision_model, with descriptions and label sets in YAML.

jev-use

★ 65

shitianfang/jev-use

Claude Code, Codex and pi plugin that hands the agent steps needing no written output to Jev and leaves the prose to the LLM.

Reflex

★ 65▲ 1

lateos-ai/reflex

GGUF-native Rust and CUDA engine built for cold-start latency, with a system1 command that scores your candidates from a local model.

mars-tw/jev-trading-command-center

Paper-trading research app where Jev answers several decision questions in one call and code keeps the final say, shown in an animated 3D command center with an offline demo. Simulated broker only.

FinancePython

jev-ui-test

★ 64▲ 3

buer2233/jev-ui-test

UI test framework where cases are written as sentences and each step is scored against the page's candidate elements rather than generated, run by pytest with Allure reports. Chinese.

RoboJEV

★ 64▲ 1

lykycy123/RoboJEV

Two-stage control of a Franka Panda in MuJoCo from structured simulator state, with physical success checks the model cannot declare for itself.

Robotics & EmbodiedPythonReviewed

PlayJev

★ 63▲ 5

OmniJev/PlayJev

Multimodal decision model that plays browser games from raw pixels, with weights and a hosted demo.

Open Models & ReproductionsJavaScriptReviewed

spring-ai-community/spring-ai-typesafe

Java client for the System One API on Spring RestClient, plus Spring AI integrations that use it as a judge, a guardrail, a RAG post-processor and a tool index.

Community SDKsJavaReviewed

kyu1204/jgrep

Semantic grep that packs sixteen chunks and sixteen questions per request, with grep's exit codes and a --diff mode for linting a change against a rule written in English.

Command-Line ToolsTypeScriptReviewed

grev

★ 61▲ 2

aurorainfra/grev

Unix filters that ask a question instead of matching a pattern, so a pipe can select its lines by meaning.

jev-chat jarvis

★ 60▲ 3

jev-chat/jev-chat-jarvis-ios

iOS custom keyboard that shows a message's intent, its risk and candidate replies inside whichever chat app you are already in. Chinese.

SelfJev

★ 60▲ 1

jwuthri-cloud/SelfJev

Self-hosted 4B decision model on Qwen3.5 with weights on Hugging Face, a server that answers Jev's request format, a Python SDK and fine-tuning tools; its tests run TypeSafe's own SDK against the server.

obie/ruby_decision_model

Ruby gem with one client for decision models behind several providers: TypeSafe's Jev, OpenRouter (the default), OpenAI, Cloudflare Clef, Perplexity and any /v1/systemone server.

dotpals

★ 59▲ 3

Rikinshah787/dotpals

A desktop pal that watches Claude Code, Codex or any agent and says in plain words which files changed, which commands ran and what failed. Runs locally.

Yanwai

★ 59▲ 3

YIRC99/yanwai

Android accessibility app that reads the visible WeChat conversation and shows emotion probabilities, possible subtext and a suggested reply beside a message. Chinese.

Lichen

★ 59

Mushroom-Systems/lichen

Drop-in replacement serving /v1/systemone from open weights on your own hardware, returning the same choice, noul and score shapes.

Feed Gardener

★ 58▲ 6

GradibelPitt/feed-gardener

Combines results from public sources into one feed with explicit topic and source controls, plus optional Jev title-relevance scores with a minimum score and confidence before an item appears.

lev

★ 58

Abhinavexists/lev

A LoRA adapter on Qwen3.5-4B that answers typed questions from logits it has already computed, served over /v1/systemone so existing clients work against it, with the harness that measures it.

dsh-engram

★ 56▲ 18

kenz1117/dsh-engram

DeepSeek Harness memory plugin built on the memory-palace layout - fixed locations as the index, routes that only grow - with cue-only spaced recall. Chinese.

jevify

★ 56▲ 1

fidecastro/jevify

Makes a model you already serve answer typed questions in one pass the way Jev does, and measures how well it manages it.

jev-code

★ 55

FrancoisChastel/jev-code

MCP server giving Claude Code, Codex, Pi and OpenCode five typed tools - classify, check, score, rank, ask - with one request per tool call and the hosts it talks to written down in SECURITY.md.

GhostHand

★ 55▲ 1

dushyantzz/Ghosthand

Windows desktop assistant: focus an app, press Ctrl+Win and describe the task; it reads UI Automation controls and has Jev choose each action through Vercel's AI Gateway, with human-in-the-loop checks.

JEV-Star

★ 55▲ 2

sc2musa/Jev_Star

Real-time StarCraft II macro control in five configurations plus unit micromanagement, with a paper and recorded games.

Call Coach

★ 53▲ 1

ZeroGold/call-coach-ai

Listens to a live sales call and, after each sentence, tells the rep what to do next with a confidence score.

Truffler

★ 52

kieranklaassen/truffler

Intent search for Rails: the typed questions you declare about a record are asked when it is saved and the answers stored, so the query at read time is ordinary SQL.

Jev Town

★ 52▲ 2

NevaMind-AI/JevTown

AI town simulation where Jev picks each agent's next move from the engine's legal options and an LLM handles dialogue and memory. MVP; the Jev demo is on the feat/jev-demo-solarium branch until it merges.

jevreel

★ 51▲ 5

DeepAleph/jevreel

MCP tools and a skill for searching video without embeddings: frames are tiled into labelled contact sheets, and Noul, Choice and Box questions on Jev 1.14 find, check and locate moments.

jevfetch

★ 51▲ 10

a2sys-ai/jevfetch

Web-page reader for coding agents, as a skill and CLI in place of WebFetch: it splits a page into blocks, asks Jev which ones answer the question, and returns those blocks verbatim with their heading paths.

Nerve

★ 51▲ 5

keeltrace/hermes-nerve

Supervisory layer for Hermes agents that adds typed decisions, ranking and verification asynchronously, with Jev authoritative and an open model shadowing it.

optim-jev

★ 51▲ 2

Oqura-ai/optim-jev

Claude Code plugin that uses Jev to drop stale tool output during compaction, route file edits to cheaper models and pick a short list of relevant skills per prompt.

Jev Sift

★ 50▲ 1

kbhuw/jev-sift

MCP plugin that asks Jev which files, web pages, or text snippets are relevant to a query, so the agent reads selectively.

RafalWilinski/vibecheck

Chrome and Firefox extension that scores a draft X post on a dozen dimensions and gives a send-or-don't verdict before you publish.

Apps & Browser ExtensionsJavaScriptReviewed

DuplexJev

★ 50▲ 15

adventists-ai/duplexjev

Open 4B and 32B speech decision models that answer typed questions about raw audio (end of turn, intent, emotion) in one pass, served with vLLM, with Pipecat and LiveKit plugins.

Jevbridge

★ 48

tacticocc/Jevbridge

ACP and MCP adapter that pairs Jev with any LLM agent, including Codex, Claude, Grok, and OpenCode, for typed decisions and computer use.

JevGuide

★ 48▲ 1

Nisaka520/JevGuide

Android accessibility app from the JevIntent author that reads a WeChat chat, has Jev judge it and score how the relationship is going, and has a chat model draft three replies. Sends no messages and modifies nothing. In Chinese.

Jevinik

★ 48▲ 1

unicodeveloper/jevocks

Stock decision terminal that gathers live market evidence and returns a typed view on the next thirty days, with the sources it used.

FinanceTypeScript

Jevify

★ 47▲ 2

altryne/jevify

Agent skill for finding where Jev fits in an existing codebase, designing the typed questions, and measuring whether it helped.

bitra

★ 47▲ 2

BijectiveLabs/bitra

Trading agents with deterministic execution in which Jev is the judge: it turns dated headlines into typed events, screens text for injected instructions and checks the deciding agents' reasons before a trade. Places real orders through ccxt.

FinancePython

go-jev

★ 46

mattn/go-jev

Go SDK with a jev-cli built on it, shaped for UNIX pipelines.

AnyDecisionModel

★ 46▲ 22

mattt/AnyDecisionModel

Swift package with one typed-decision protocol over two backends: Jev's /v1/systemone, or a small model running locally on Apple silicon through MLX.

TriRouter

★ 46▲ 13

hajdu-patrik/trirouter

Routes each request across Claude, Codex and other agents, and queues a prompt sent while an earlier one is still running instead of overwriting it.

Jev for Chrome

★ 46▲ 4

chy4pro/jev-for-chrome

Manifest V3 port of jev-ultrafast that drives the tab you are already looking at, keeping the same observation format and execution rules.

Browser & Computer UseTypeScriptReviewed

JevGraph

★ 46

chenmingtang830/jevgraph

Builds candidate knowledge graphs from PDF, DOCX, PPTX or text: entity pairs are found locally, Jev picks each relation from a fixed schema, and every edge keeps its source text span. Exports to CSV and Neo4j; calls Jev through Vercel AI Gateway.

Live Jev

★ 46

okinaaudio/live-jev

Control Ableton Live with one sentence, in Japanese or English, from a bar that appears over the session and gets out of the way.

jev-belay

★ 45▲ 4

valentynkit/jev-belay

Claude Code Stop hook that checks the transcript for evidence before letting a "done" through, and spends one four-question Jev call only when files changed with no passing check since. Fails open on every error path.

Guardrails & SafetyJavaScriptReviewed

Jevline

★ 45▲ 1

tsale/jevline

Starts from one confirmed-malicious process, account or host in a telemetry export and asks Jev, round by round, which linked activity belongs to the same incident; returns a timeline and evidence table for analyst review. Experimental.

hunkim/solar-mini4-jev

Puts Upstage's Solar Mini4 behind Jev's /v1/systemone shape, bring your own Upstage key. Its benchmark grades against a third-party judge rather than a peer model's answers, and every published figure recomputes from the artifacts committed with it.

Dev-0.4B

★ 44

mpnikhil/dev-0.4b

A 399M bidirectional encoder with one universal choice head, answering Choice, Noul and Score in a single forward pass. Every README figure reconciles to an evaluation JSON shipped in the repository.

zhangcy122/OpenJev

Asks an Ollama or OpenAI-compatible model to write a likelihood score per candidate, then softmaxes them with a fixed temperature. PolyForm Noncommercial, not an open-source licence.

1v1 Jev

★ 44▲ 1

emrickgarrett/OneVOneJev

Three.js quickscope arena where Jev decides movement, aiming, ADS, firing, and jumping at roughly 9 Hz.

Games & Real-Time DemosTypeScriptReviewed

vibecheck

★ 43

jlowin/vibecheck

Drops a decision model into ordinary Python code, so a judgement call is a function call rather than a prompt.

cmpnd-ai/dspy-system-one-agent-patterns

Six files, one coding agent, one pattern each, on a single rule: the signature states the question, Jev returns the probability, and plain Python owns the policy.

shaharia-lab/jev-cli

Rust CLI whose exit codes separate a false gate from an answer inside your abstain band, so a script can take a third branch and ask a person. Lints the request before it spends anything.

Command-Line ToolsRustReviewed

BkashJEE/hermes-agent-archive

Static, source-attributed archive of Hermes Agent workflows and skills whose harvest job uses Jev to route new entries to shelves and rank them by usefulness, labelled as automated judgements.

frankda/jev-poly-crypto-demo

Research tool for Polymarket's BTC 5-minute markets: Jev scores the direction, separate code decides the entry, and any TRADING_MODE other than paper throws at startup. No licence file.

FinanceTypeScriptReviewed

hqman/jev-browser-skill

Agent skill that drives an isolated Playwright Chromium: the agent sets a narrow goal and Jev chooses the in-page actions. Vercel AI Gateway by default, TypeSafe optional.

IamBusy/OpenJev-Vision

Encodes an image once and answers several typed questions from the shared distribution. Ships synthetic scenes, trained readouts, a dataset and reproducible evaluations.

Bekko System One

★ 41▲ 4

hotchpotch/bekko-system-one

Small decision models from 17M to 400M for yes/no, choice, score and reranking, with a training toolkit, Python inference and a browser app.

Deeds

★ 40

danielmiessler/Deeds

CLI and Claude Code plugin that reads each commit's diff and counts capabilities gained, fixes and upkeep, ignoring commit messages. Needs only a Jev key; only diffs and file paths are sent.

Shed

★ 40▲ 8

IAmUnbounded/shed

Message the coding agents on your Mac from your phone, with a local Laya model choosing which installed harness and model handles each new task. No TypeSafe account or key.

Jev Voice

★ 40

ronadin2002/jev-cua

Floating bar for macOS that takes a voice or text command and picks the next action from the Mac's live accessibility controls, looping until the goal is met.

jevclip

★ 40

cclank/jevclip

Judges a video's transcript segment by segment and cuts two versions, a short highlight reel and a full one with the filler removed, writing down why each cut was dropped. Chinese.

jev-cookbook

★ 39▲ 1

nexibeo/jev-cookbook

Fifteen runnable recipes calling Jev through OpenRouter - support triage, dedupe, PII column scanning, reranking, moderation and more - each shipping the output it produced beside it.

Libraries & IntegrationsJavaScriptReviewed

luantak/is-malicious

Sends source, configuration, build, and CI files to Jev and points at the files and lines that look deceptive or data-stealing. Its README says a clean report is not proof a project is safe.

Guardrails & SafetyTypeScriptReviewed

Jev Local

★ 39

Argos1111/jev_local

A local /v1/systemone server with two backends: an LFM model zero-shot, and a fine-tuned ModernBERT-Ja cross-encoder. Japanese documentation.

jev-harness

★ 38▲ 4

TypeSafeAI/jev-harness

Research-stage proposal-review contract: an LLM proposes one action, four narrow questions are answered, and code produces evidence for a host to judge — it applies nothing itself. From the independent TypeSafeAI community organisation, which its README distinguishes from the official team.

agent-stack

★ 38▲ 2

korallis/agent-stack

Turns one Linux machine into a team of coding agents that plans, writes tests first, builds, uses the result and has a second model family review it, with Jev making the routing decisions.

alexei-led/claude-router

Claude Code mod that sets the model and effort for each main-conversation turn from a prompt classifier: Jev by default, or Cloudflare Clef, OpenAI or a local Ollama model. It does not proxy Anthropic traffic.

Model RoutingJavaScript

devanshbatham/commit-miner

Classifies Git commits into bug fixes, security fixes with CWEs, and change types.

Command-Line ToolsRustReviewed

Alurith/jeff

Read-only Go CLI that checks files against rules such as unclear responsibility or weak error handling with Jev, locally or in CI.

JevScout

★ 38

hqman/JevScout

Coding-agent skill that drives Chrome over CDP to look for jobs on company sites, with Jev scoring pages and links.

BrowserPaw

★ 38▲ 1

GoldenLoaf24h/browserpaw

Drives your everyday Chrome from an agent across fifty MCP tools, with each step decided by Jev or by a decider model it downloads and runs on your own machine.

Dohnuts

★ 38▲ 1

PsiACE/dohnuts

Small multimodal models for direct decisions on text, documents and images. Its model card publishes the benchmark it loses and states that its confidence field is not a measured probability of correctness. Weights are CC BY-NC-SA.

safzanpirani/pi-jev-skill-picker

Takes Pi's generated skill catalogue out of the system prompt and puts a ranking tool in its place, so skills are pulled in on demand instead of carried in every request.

mizchi/jev-test-filter

Reads a Git diff, scores every test for whether the change can alter its outcome, and prints the arguments your runner already understands. Every failure path runs the whole suite instead, including a diff that did not fit the state budget.

slop-grader

★ 37▲ 1

lukstei/slop-grader

Grades prose against twenty-one named writing tics, asking every rule about every line, and writes its findings as a brief for a coding agent to act on.

Command-Line ToolsTypeScriptReviewed

RefGarden

★ 37▲ 1

AlbionaHoti/refgarden

A three-dimensional reference gallery over The Met, NASA, Cosmos, and the Prelinger Archives, with Jev choosing the search phrases.

Paper Radar

★ 37▲ 2

Eliot5566/JEV-Paper-Radar

Reads the morning's new arXiv papers against interests you write in plain English and surfaces the few worth opening.

opendecider

★ 37▲ 1

manjunathshiva/opendecider

Calibrated decision models from 400M to 80B on CPU or NVIDIA, with weights on Hugging Face and a Colab notebook.

Sniff Test

★ 36▲ 1

DanRWilloughby/snifftest

Prose linter for AI writing tells: countable regex rules run locally, and one judgment question covers the rest.

Command-Line ToolsTypeScriptReviewed

Quyet

★ 36

ncchinh/quyet

A family of open decision models that pick one option per question with calibrated probabilities and answer in TypeSafe's /v1/systemone shape. Apache-2.0.

jev-from-scratch

★ 36▲ 23

I-You-Dream/jev-from-scratch

Fine-tunes Qwen3.5-4B with QLoRA to answer Choice, Noul and Score questions from candidate likelihoods, with scripts for data, training, calibration and comparison. Chinese; no licence.

adhere

★ 35

darkmatter/adhere

Linter for repository rules ordinary linters cannot express: each rule becomes System One questions about the files it covers, run from the CLI or in CI, with Jev as the default provider.

Reflex

★ 35

datadog-labs/reflex

Rust library for control loops over observability data: metrics and forecasts become typed state, a model recommends an action, and it is committed only if the guards and invariants you declared hold. Not the same project as the open model of the same name.

Jeved

★ 35▲ 1

mossyfield/ST-jeved

SillyTavern extension that asks your own questions about each reply and, when a rule matches, adds a line to the prompt, rerolls, or runs a script.

Apps & Browser ExtensionsJavaScriptReviewed

JevBERT

★ 35

hawkymisc/typed-decision-bert

A local server that speaks Jev's /v1/systemone shape from a BERT encoder, with a numbered account of every request it refuses that Jev might accept.

cygnet-recipe

★ 35▲ 1

blockbrain-ai/cygnet-recipe

Typed decisions from a frozen Gemma-4-12B-it by reading one option-letter token over stock vLLM, packaged for JevBench.

EdgeJev

★ 35

yzfly/edgejev

Converts open Jev reproductions such as Laya, Kev and PlayJev to ONNX with INT8 quantisation and serves them offline on a CPU behind a local /v1/systemone endpoint, with no torch at runtime. Chinese.

clash-jev

★ 35

bytelabs-oss/clash-jev

Clash Royale bot with no trained policy: it reads the game from an Android phone's screen over adb, and Jev picks each card and placement. Needs a real device.

ReelQL

★ 34

tomascupr/reelql

Claude skill and API that turns a video link into one typed JSON document: chapters, scenes, key moments, on-screen text and transcript.

NucleiSniper

★ 34▲ 1

MorDavid/NucleiSniper

Runs every Nuclei template in order of relevance to a fingerprinted target, with Jev scoring which findings are likely to matter.

is-jeven

★ 34

wobsoriano/is-jeven

Answers whether a number is even by asking a decision model. The joke is the point, and it is a three-line look at the request shape.

Games & Real-Time DemosJavaScriptReviewed

madisonrickert/jev-permission-gate

Claude Code mod that answers auto mode's tool-call question with eight yes/no questions in one request, behind a shell-aware blocklist whose flags Jev can deny but never wave through.

smkrv/jev-calibrate

Checks a Jev question against your own labelled examples and grades it: act on it, only sort by it, or rewrite it. Refuses to grade a question whose classes have too few examples, however good the numbers look.

Evaluation & BenchmarksTypeScriptReviewed

pijev

★ 32

TypeLLM/pijev

Drop-in wrapper for the official Python SDK that asks each question in several option orders and averages the answers, so a decision does not move when the options are shuffled.

zero-use-computer

★ 32▲ 12

mhrsdev/zero-use-computer

Computer use over MCP that reads what a screen reader reads and acts on real controls, with an optional decision model - Jev or any compatible server - for the small choices.

misbahsy/doc-router

Rust tool that asks Jev which PDF pages actually need OCR, extracting text pages locally and sending only the rest to your OCR provider.

dsh-paper-reader

★ 32▲ 3

GGboya/dsh-paper-reader

DeepSeek Harness plugin that turns the workspace into a paper-reading bench: PDF transcription and search, with keyword candidates reranked by Jev and a fallback to keyword order without a key. Chinese and English; no licence file.

Sharp

★ 32

tshmieldev/sharp

Browser extension that filters your X timeline by plain-language rules, with Jev as the default classifier.

Apps & Browser ExtensionsTypeScriptReviewed

deepdave98/jev-playground

Weekly go-to-market workflows built on Jev, such as lead triage and deal risk, each tested against Claude with its harness published. No licence file.

Glance

★ 31

yoheinakajima/glance

Asks a frozen open vision-language model typed questions about an image and reads the answer out of one forward pass, with a calibration harness around the readout.

Jevspresso

★ 31▲ 2

statelyai/jevspresso

A simulated espresso bar where Jev makes every barista decision inside an XState machine; break the equipment and watch it cope.

J++

★ 30

Towow-ai/jpp

Experimental language in which a question is a value and methods compose them, with a Python foundation and a Rust runtime, both speaking /v1/systemone. Every demo replays a recorded run and says what is unsettled. Chinese and English.

Jev-Engineering/cookbook

Planned set of sixty notebook recipes for Choice, Noul and Score patterns, 33 published so far, each runnable offline on fixtures and labelled with the mode it ran in.

Libraries & IntegrationsJupyter Notebook

Jev IDS

★ 30▲ 5

jev-sec/jev-ids

Intrusion detection that shows Jev one network flow and five labelled examples, benchmarked against LLM and classical baselines.

jiangkoumo/ego-decision-layer

Replaces the per-step LLM turn in the ego lite browser with one Jev call that picks both the action and the target element, while code observes, executes and fails closed. The installer takes over the official ego-browser skill entry unless you pass --no-wire.

Browser & Computer UseJavaScriptReviewed

PromptEngineer48/laya-vs-jev-arena

A local open model and the hosted one play a snake race and a fighting game against each other, every move a real decision rather than a script.

toolgate

★ 29▲ 1

RiskAverseTech/toolgate

A calibrated tool-call firewall for agents, as a Claude Code mod or PreToolUse hook or as an MCP proxy in front of any MCP server: Jev checks each call for being off-task, breaking an explicit constraint or making a choice reserved for you.

jsort

★ 29▲ 1

keltokhy/jsort

Sorts lines along a plain-English dimension by judging them in pairs, so the sort key is a description rather than a field.

Command-Line ToolsPythonReviewed

Lev

★ 29

jlt-commons/lev

System One decision engine in Clojure on Jolt, answering typed questions over a state with calibrated probabilities.

tinyjev

★ 29▲ 2

ankit-aglawe/tinyjev

A small decision model for a laptop that answers the three primitives and is built around knowing when to ask a person.

jevvy

★ 28▲ 2

PanAchy/jevvy

Plugins for coding agents, starting with one that auto-approves shell permission requests it judges harmless and passes everything uncertain to the normal flow.

Jevonian

★ 28

xinyao27/jevonian

Sits between a coding agent and its providers, picks a model for each turn against quota and cache economics, and records the decision locally.

Zaious/jev-capability-atlas

A bilingual map of where Jev holds up and where it breaks, built from recorded API calls rather than a leaderboard. Its LICENSE is not a recognised open-source license.

TypeSafeAI/typesafe-playground

Community playground with 110 use cases, A/B input comparison, editable prompts, and games built on typed answers. From the independent TypeSafeAI community organisation, not the official team.

omo-jev-plugin

★ 27▲ 1

brianhong-dev/omo-jev-plugin

Rates how well the next skill or tool fits the work an OmO or senpi agent is doing and passes back a short suggestion. It runs no tool itself and replaces no permission check. Korean.

claude-jev

★ 27▲ 2

0x7067/claude-jev

Claude Code plugin that sends the small judgements — what kind of prompt is this, does it need tools, does this edit break a rule — to a decision model instead of a frontier one.

devtooligan/jevscan-evm

Produces a heat map of likely bugs in EVM code. The author's own warning: a proof of concept whose code they did not read.

Guardrails & SafetyPythonReviewed

dark-hxx/jev-safety-gateway

Go reverse proxy that sits between nginx and a model backend, judges each request's user input, blocks the harmful ones and passes the rest through untouched. Chinese.

evoke

★ 27

evoke-build/evoke

Turns a sentence into a call of a small program you installed from Git, run only when the confidence gate allows. A CLI, a package manager for those recipes, and a TypeScript SDK over the same core; your overlay may tighten a reflex's effect but never loosen it.

Command-Line ToolsRustReviewed

Flick

★ 27

bgivenb/flick-computer-use

Local stdio MCP server that executes a whole browser or macOS goal from the agent's goal, values and completion condition.

d8349565/MultiTool-Office-Next

Windows file manager and office workbench with local search, OCR, translation and to-dos; Jev helps pick extracted contract fields, with amounts and long numbers filtered out first. Optional, in Chinese.

CallSitter

★ 27▲ 1

szerintedmi/callsitter

Answers your phone with a voice agent while Jev classifies the growing transcript as scam, sales or a genuine caller, and a fixed call flow decides whether to stall, decline or take a message. Needs Telnyx and OpenAI realtime accounts.

wc3env

★ 27

offpolicyinc/wc3env

Gym-style environment for real Warcraft III: deterministic stepping, fog-filtered observations and native commands, for driving decision models against a game.

FastJev

★ 26▲ 4

chengyongru/fastjev

An independently maintained SemIf fork packaged SDK-first, for deploying an open decision model on your own infrastructure.

Vev

★ 26▲ 5

Xiaooolong/vev

Jev-style decision models that also take images, with open weights on Qwen3.5 for your own GPU.

MetaCog

★ 25

ItIsCuthNotCup/MetaCog

Wraps a language model in a metacognition loop where a System One judge, Jev or the open Reflex model, picks which branch of reasoning continues.

jcpsimmons/jev-macos-loop

Native macOS GUI automation on Apple silicon: OmniParser CoreML and Apple Vision OCR identify controls locally, Jev selects the action. AGPL-3.0.

Browser & Computer UseJavaScriptReviewed

ChenneyZhuang/laya-browser-agent

Browser agent whose next action is decided by Laya on your own machine, with no cloud and no API key. Japanese.

wuxie888/jev-yaba-wechat

macOS helper beside the WeChat window: an LLM drafts several possible replies and Jev scores them, leaving you to press send. Chinese.

x-scanner

★ 25▲ 1

oso95/x-scanner

Chrome extension that labels every post you scroll past on X with six typed questions per post, and counts what it costs in the corner.

Apps & Browser ExtensionsTypeScriptReviewed

Laya MPS

★ 25▲ 3

afshinm/laya-mps

Runs Laya's typed-decision checkpoints on Apple Silicon through Metal Performance Shaders, with a lower-memory mode.

edgelesssys/privatemode-decisions

Gets a choice and a probability per option out of any OpenAI-compatible model in one forward pass, for Edgeless Systems' confidential-computing API or any endpoint you set.

Qev

★ 25

QiqianFu/Qev

Qwen fine-tuned into decision models at 2B, 4B and 9B, with the training data and evaluation code. English and Chinese.

feelings

★ 24

BoundaryML/feelings

BAML language support for an AI if-statement: .feels() as a real, typed method backed by a decision model.

agencyenterprise/jev-recipes

Two hundred small decisions as installable TypeScript, each a typed question with its options, for routing, grading, gating, comparing and labelling.

JevLoop

★ 24

zjunlp/JevLoop

An agent loop whose seven forks are typed decisions rather than LLM calls, keeping the model for writing. Zero runtime dependencies, and the demo runs offline with no key and no install.

dsh-jev

★ 24

buberlo/dsh-jev

Decision layer for DeepSeek Harness whose failure policy rejects the value allow at configuration time, from plain JavaScript as well as TypeScript. Its verify script installs the built tarballs into a fresh consumer before testing them.

Guardrails & SafetyTypeScriptReviewedArchived

Eval Genius

★ 24▲ 4

alexgreensh/eval-genius

Skill that tells a coding agent when a question needs an eval rather than a vibe, with an opt-in lane that routes the closed-label residue to a decision model and scripts for the cost and confidence arithmetic.

jeval

★ 24

rlaope/jeval

Measures how well a classifier's confidence matches reality and turns the cost of a mistake into the threshold where a human should take over.

NotJev

★ 24

9pings/notjev

Serves the Jev request shape from any OpenAI-compatible endpoint by presenting options as single letters and reading the letter mass out of logprobs.

Open Models & ReproductionsJavaScriptReviewed

abhishek085/open-spark-jev

A local decision model for NVIDIA DGX Spark, labelled from policy engines and solvers rather than an LLM judge. Its evaluation protocol records the time its own corpus leaked most of the test set into training.

choosekit

★ 24

NotXf1le/choosekit

Scores a finite set of choices against a model you already run and returns a typed decision with a probability distribution, from text or images. Backends for llama.cpp, Ollama and OpenRouter, and a choosekit-mcp package exposing the same choice as one read-only MCP tool.

Open Models & ReproductionsJavaScriptReviewed

Jev-Style

★ 24▲ 1

lawrence3699/jev-style

Small Qwen3.5 decision models at 0.5 and 1.3 GB in 4-bit, with a systemone-compatible local server, agent skills and a Claude Code guard.

khordoo/jev-reflex-autonomy-lab

Multi-drone simulation where typed reflexes fly the fleet and an optional slower planner may advise but never takes control.

Robotics & EmbodiedTypeScriptReviewed

chopratejas/invalidate

Gives every remembered fact a lease and asks Jev whether new evidence ends it, so an agent's memory can be made to go stale on purpose.

Gatekeeper

★ 23▲ 1

AgriciDaniel/gatekeeper

Decides which agent or skill should take a request before the agent picks for itself; tool-neutral rulebooks, installed today as a Claude Code hook.

jev-cli

★ 23▲ 1

Nasrallah-AL/jev-cli

Typed judgments from the command line, published to npm as jevctl.

Command-Line ToolsTypeScriptReviewed

csskrtao/jev-to-answer

An LLM lays out the options for an everyday dilemma and Jev picks one, with a page for keeping and re-reading past answers. Chinese.

Chinese-Jev

★ 23▲ 2

gulucaptain/Chinese-Jev

Tools to train, calibrate and evaluate Chinese decision models on a Laya base, with released datasets, a held-out benchmark and open medical-domain weights.

agent-chaperone

★ 22▲ 1

agent-chaperone/agent-chaperone

MCP proxy that screens a tool call before it runs and the tool result before the agent reads it, combining rules in code with typed judgments. Starts in a shadow mode that blocks nothing.

thusinh1969/BrighTO_Router

Self-hosted Rust gateway that fronts OpenAI-, Anthropic- and /v1/systemone-shaped backends behind one endpoint, with weighted model groups and usage recorded in PostgreSQL.

stas4000/jev-linkmap

Rebuilds a site's internal links: code crawls pages and shortlists targets and anchor phrases already in the copy, and Jev decides which links to place. An optional deep model rewrites the rubric.

YueBit/robodiag-harness

Command-line diagnostics for ROS 2 robots: an evidence-gathering agent whose tool calls are gated by typed decisions before anything touches the robot.

ALGAL

★ 21

hraness/algal

A language and VM for agent programs that wait for approval, resume after a crash and replay what they did, with typed decisions at the branch points.

jev-feels

★ 21

Qew7/jev-feels

Ruby and Rails: email.feels?(:urgent) as a named question on a field, with decide and score beside it and validations that use them.

code-quality

★ 21▲ 1

smixs/code-quality

Deterministic quality gate for Claude Code, Codex and pi: Git hooks that block test tampering and secrets, with an optional Jev review that adds findings to the report.

zszz3/Pi-Jev-Guide

Pi coding-agent plugin with rules configured by timing, plus risk checks, output redaction, and reminders on repeated failures. Chinese documentation.

Guardrails & SafetyTypeScriptReviewed

jevframe

★ 21

ktaletsk/jevframe

A .jev accessor for pandas and Polars: the request is built from the columns you name and nothing else in the row, and a failed row raises naming the row instead of becoming a null.

Data & ObservabilityPythonReviewed

jev_antispam_bot

★ 21▲ 4

backmeupplz/jev_antispam_bot

Telegram bot that asks whether each group message is spam and deletes only high-confidence matches. Administrators are exempt, and a channel identity only when a fresh lookup proves it is the group's own linked channel.

jev-rs

★ 21▲ 3

yijunyu/jev-rs

Rust engine that answers the three primitives from any language model in one prefill, reading probabilities rather than generating.

trungdq88/jev-tetris

Two models play Tetris on a shared seeded piece sequence under the same clock; a piece that lands before the answer arrives locks where it fell. No licence file.

Games & Real-Time DemosJavaScriptReviewed

vinilana/live-jev

A 2D top-down car in the browser that turns its sensors into a JSON state every 200 ms and executes four typed answers. No license file at the time of writing.

Games & Real-Time DemosJavaScriptReviewed

Hunch

★ 20

carldaws/hunch

Probabilistic control flow for Ruby and Rails, with predicates that read like ordinary conditionals.

jev-skill-router

★ 20▲ 1

shimo4228/jev-skill-router

Claude Code hook that asks Jev which skill fits each prompt, in shadow or inject mode, published with the log of the week its author ran it and why they removed it. English and Japanese.

Jot

★ 20

runta-dev/jot

A general-purpose agent loop where Jev picks the next move and Jot runs it. No license file at the time of writing.

Jev Logs

★ 20

reachjalil/jevlogs

Scores OpenTelemetry logs for diagnostic value, priority, and routing before expensive LLM analysis.

Data & ObservabilityJavaScriptReviewed

Jevflake

★ 20▲ 1

KranzL/Jevflake

A dbt package and Terraform module that let Snowflake ask a typed question about a row, so the answer comes back as a column you can filter, join and test.

Jev demos

★ 20

mayank953/Jev

Seven side-by-side demos that run with no keys and label themselves simulated. Each visitor's key gets its own budget by fingerprint, and any key is redacted out of upstream errors.

Apps & Browser ExtensionsJavaScriptReviewed

yushen100/wechat-jev-assistant

Windows desktop tool that reads the local WeChat transcript, redacts it, and returns the stage of the conversation and what it needs. Chinese.

emotion-system

★ 20▲ 1

bvsden/emotion-system

Reads an AI companion's emotion out of what it wrote itself rather than assigning one, through OpenRouter. Chinese.

Tomarigi

★ 20

mohhh-ok/tomarigi-desktop

macOS app that shows each Claude Code or Codex session as a bird in an always-on-top window; with a TypeSafe key, Jev flags messages you send that are abusive toward the agent. In Japanese.

erendikmenn/jev-rag-benchmark

Reproducible experiments on whether reranking with Jev improves a small RAG system, on a locked Turkish dataset, with quality, latency and cost reported together.

Jevpact

★ 19▲ 2

transcendr/jevpact

Codex desktop plugin and local service that asks Jev whether the current step has reached a usable conclusion, requests Codex's native compaction at that point, and resumes only the work that is still actionable. macOS development preview.

tumf/jev-cli

CLI and stdio MCP server for the three Jev primitives, with --value for shell scripts and structured stderr errors. auth set refuses a key as an argument, keeping it out of shell history.

Command-Line ToolsPythonReviewed

jiawei686/jev-ultrafast-mcp

MCP server that takes a whole browser task in one call and drives the page itself, so the agent never opens a browser.

Cheshi

★ 19

CheshiAI/Cheshi

macOS workspace for Codex where Jev finds past sessions and the decisions made in them. Apple silicon only.

Kibu

★ 19

madhurjyadc/kibu

A desktop pet for the Mac that takes an instruction, does the work across files, apps and websites, and shows its evidence.

spinlens

★ 19

Aolibibi/spinlens

Scans a Bilibili video's comments for rhetorical moves rather than arguments - false balance, labelling, muddying - and quotes the evidence for each of eight labels. Chinese.

jevper

★ 19

zhulinchng/jevper

Independent implementation of the documented System One wire format over an OpenAI-compatible chat model.

train-jev

★ 19▲ 5

shibing624/train-jev

Training and serving code for Jev-style models on Qwen: LoRA and a decision head distilled from Jev 1.13's output distributions, served on a /v1/systemone-compatible endpoint. Needs a GPU.

Singularity-Compute/super-decider

Open-weights decision model fine-tuned from DiffusionGemma 26B-A4B that writes a short thought only when unsure, with a Docker runtime serving POST /v1/systemone. Self-hosting needs a 48 GB GPU; the vendor also sells a hosted API.

Gut

★ 18

vinibrsl/gut

Elixir DSL that picks an Elixir value for a subject and a question, with a Jev backend among the LLM ones. On Hex.

jev-remix-cutter

★ 18▲ 1

gnipbao/jev-remix-cutter

Codex skill and Python CLI for local video remixes: shot and beat detection, Jev judgements on clips pinned to jev-1.13.0, and an originality and footage-licence report. Text goes to TypeSafe only after an explicit --allow-text-upload. Chinese docs.

jev-lint

★ 18▲ 5

ckorhonen/jev-lint

Fuzzy linter for coding agents: a hook checks each file the agent writes against your team's rules in .jev-lint/ with Jev and reports violations while the agent is still working.

jint

★ 18▲ 1

sedulustech/jint

Semantic linter: rules written in TypeScript build state from Treesitter and ask Jev to classify it, and a callback per rule turns the answers into findings.

masonlee39/orchvia

Orchestration engine for multi-agent work with durable mailboxes and warm sessions, routing each task with a typed decision instead of a manager LLM.

Model RoutingTypeScript

ruban-24/switchboard

Model and reasoning-effort routing for Claude Code and Codex, model-agnostic and self-hosted.

Model RoutingTypeScriptArchived

playjev

★ 18

filedcom/playjev

Natural-language browser automation for Playwright, in the shape of Stagehand. Not the same project as the PlayJev decision model below.

linboxin/Boson-Video

Summarises a video with every line tied to the second it came from; Jev checks each summary sentence against what was said, with numbers compared in code.

patrol-jev

★ 18▲ 1

patrol-jev/patrol-jev

Turns patrol photos into Korean patrol-log entries: an LLM reads each photo, Jev sorts it into one of four categories and checks whether consecutive shots show the same spot, and code writes the text and a .hwpx file. Korean.

QuicqDev/Jev-vs-ML

Compares a typed decision model with classical classification pipelines across eight datasets, with a published protocol and an interactive report.

Evaluation & BenchmarksJupyter NotebookReviewed

JEV-CPU

★ 18

leesk212/JEV-CPU

A CPU port of SemIf that swaps only the model loader and reuses the scoring code unchanged, so you can read a decision out of a small model's option logits on a laptop with no GPU.

Ollajev

★ 18▲ 2

nvkudva/ollajev

Pulls System One decision models from Hugging Face and serves them, Ollama style, behind TypeSafe's routes and shapes, so the stock SDK works by changing TYPESAFE_BASE_URL.

jev-bot

★ 18

bl888m/jev-bot

Market decision bot for stocks, crypto and memes: state in, buy, sell, hold or avoid out, paper trading by default.

FinancePython

ainame/swift-typesafe

Unofficial Swift SDK following the Python SDK's API, for Apple platforms and Linux.

Community SDKsSwiftReviewed

Discern

★ 17

doeixd/discern

Semantic control flow for Effect: patterns, policies and routable procedures built on typed decisions, where an uncertain answer is a branch you must handle.

Libraries & IntegrationsTypeScriptReviewed

lorenzini

★ 17

Nanako0129/lorenzini

Claude Code skills that wait for CodeRabbit, Copilot or Codex to finish reviewing a pull request, then judge whether the verdict actually permits a merge.

matchcn

★ 17

francesco0242/matchcn

Semantic index across shadcn-format registries: components are tagged once across six dimensions and committed, and your brief is classified at query time to match against them. Ships as an MCP server.

jes

★ 17▲ 2

everafterlabs/jes

Open-source guardrails for AI agents that check prompts, skills, retrieved content, tool calls and responses for prompt injection with a decision model such as Jev or Laya, with thresholds you set; LangChain integration and lessons. Apache-2.0.

Helm

★ 17

Jimuelle07/Helm

Picks which of the coding agents on your machine should take a task, from an answer set a probe builds, so an agent you have not installed cannot be recommended. Installs as a Claude Code plugin, a Gemini CLI extension, or an Agent Skill.

Model RoutingPythonReviewed

dirien/jev-router

Local pass-through proxy for Claude Code and the Codex CLI that asks Jev which model tier each human turn needs and only moves up within a session, so prompt caches survive. No runtime dependencies.

Model RoutingJavaScript

jev-opus

★ 17▲ 2

WXK-AI/jev-opus

Runs Claude Opus 5.5 with the effort level re-decided by Jev at every step, without breaking the prompt cache; CLI plus Claude Code integration.

Model RoutingTypeScript

dominicrico/jev-router

Claude Code plugin that asks Jev before each prompt, step and subagent which Claude model and reasoning effort to use, with an effort cap and a live status line. A self-hosted System One router can stand in for Jev.

Model RoutingTypeScript

jev-commit

★ 17▲ 1

valentynkit/jev-commit

Pre-commit hook where one Jev call checks whether the commit message matches the staged diff, flags debug leftovers and unmentioned work, and blocks only when it finds a credential.

Command-Line ToolsPythonReviewed

OpenComputerUse

★ 17▲ 2

IAmJSD/OpenComputerUse

Background computer use for agents as an MCP server, written in Rust: sessions drive an app behind your other windows, and plain-English recipe steps are placed by one Jev (or Clef) choice over the window's interactive elements, stopping when it is not confident.

Jevaro

★ 17

columnar-tech/jevaro

Python batching proxy that asks the same Jev questions about many states and streams the answers back as Apache Arrow, one row per state and one column per question, with Python and JavaScript readers.

JEVDB

★ 17▲ 1

PDAIS/JEVDB

DuckDB extension for semantic queries that batches row-level decisions on Jev in one stage, with an OpenAI-compatible LLM backend as the alternative and a Colab notebook.

Jev RAG

★ 17▲ 4

aifabrice/jev-rag

Local knowledge search with seven selectable pipelines, BM25 plus Jev reranking by default, streaming cited answers over your own document folder.

netizen

★ 17

Seheta/netizen

Simulates how Indonesian netizen personas would react to a post before it goes out, with Jev judging who stops scrolling, what they do and their stance, checked against real comments from past cases. Indonesian.

Typed Evals

★ 17▲ 1

TrustifAI/typed_evals

Python toolkit that puts evaluation of LLM, RAG and agent output as typed questions, with optional calibration against human labels.

laya-rust

★ 17

aovestdipaperino/laya-rust

Pure-Rust inference for Laya on candle: ModernBERT-large with its RL decision head, no Python at serving time.

pydantic-ai-go

★ 16▲ 1

Kludex/pydantic-ai-go

Go port of PydanticAI's agent loop, tools and structured output, with a TypeSafe Jev model provider and a generic System One provider alongside the LLM ones.

emirbartu/jev-for-all

Connects Jev to the harnesses agents already code in, from OpenCode to Hermes, so they can ask which skill to load, which tools a step needs, and where to go next in a browser.

patdown

★ 16▲ 1

tyler-dot-earth/patdown

Lints a tree against fuzzy rules kept in one markdown file, behind a provider-neutral interface so the judge can be swapped. Its LICENSE is not a recognised open-source license.

jevlint

★ 16

Ice-Hazymoon/jevlint

Semantic lint rules for review questions syntax can't answer, such as a logged secret or an unbounded retry loop, asked of Jev alongside ESLint.

jev-edge

★ 16

kiwi0719/jev-edge

Admission control at the traffic edge: an OpenResty module, with Lua and JavaScript packages, that screens requests for prompt injection before they reach the app.

syumai/jevyoumean

Semantic "did you mean?" for any command: wraps a CLI and proposes the correction a typo was reaching for. Experimental, by its author's own note.

SihanLv/AudioJev-Inference

Python library and HTTP service for AudioJev: give it an audio clip and several typed questions in one request, and get option probabilities, yes/no judgments or ordinal scores back. Needs an NVIDIA GPU with BF16.

jev_stock

★ 16

sosopop/jev_stock

Experiment in forecasting Hong Kong stock direction: it builds a past-only state from market data, asks for an up, flat or down call, and renders a standalone report.

FinancePythonReviewed

Jeeva

★ 16

SaratAngajalaoffl/jeeva

Mid-frequency trading framework for Hyperliquid perpetuals whose decision makers are typed questions, in a TypeScript API and a Rust engine.

FinanceTypeScript

stefafafan/jev

Provider-neutral Unix client: a question in, a typed answer out, for shells and scripts. go install.

AntonioCoppe/jev-harness

TypeScript library that wraps Jev answers in policies, confidence gates, shadow mode, and reusable recipes.

Libraries & IntegrationsTypeScriptReviewed

DuoMind

★ 15

j1s4nn/duomind

OpenAI-compatible local server that pairs a small llama.cpp model for generation with a decision model for the closed questions, so generation stays on your machine.

fstandhartinger/auto-model-router

Picks a model per turn across any number of OpenAI-compatible providers against cost, cache and quota, with a Claude Code shim.

forvela/jev-agent-browser

Bounded browser tasks for a parent agent: Jev picks the next typed action, agent-browser runs it, and ambiguity or a stuck state comes back as a structured handoff.

sunil-sadasivan/jevernetes

Reads Kubernetes logs, decides which lines matter and what to investigate next, and hands off to an agent. Rust, with an offline mode.

Nisaka520/JevBystander

Android accessibility reader for WeChat that judges the other person's message and shows three short prompts: it writes no replies and modifies nothing. Chinese.

JEV_sees

★ 14▲ 1

CharlesFeng0314/JEV_sees

Gives Jev eyes: turns an image, a video stream or an RGB-D camera into the structured state a typed question can be asked about, for risk and triage judgments over what a camera sees.

DECRUX9812/typesafe-skill-router

Hermes Agent plugin that names the one skill worth loading before the model call. Off by default, injects nothing when nothing fits, and does not spend its second request when the first gate is not cleared.

pi-heed

★ 14▲ 1

Nyarlathoteppppp/pi-heed

Checks every side-effecting tool call the pi agent is about to make against what you actually asked for, before it runs.

HorusJiang/dsh-jev-tools

DeepSeek Harness plugin that judges tool output before it enters the context, screens fetched pages for injected instructions, and gates completion claims. Chinese.

JevLint

★ 14▲ 1

iamtoomas/JevLint

Checks code against conventions written in plain English, in a write-check-fix loop with your coding agent.

hraness/gobstopper

A local proxy that compacts long Claude Code and Codex sessions as they run, with Jev as one of the scorers that decide what stays; nothing is sent until you choose one.

Sedum

★ 14

sedum-dev/sedum

Plain-English browser end-to-end tests on Playwright, cheap enough to run on every pull request: Jev resolves what each sentence refers to and whether a claim holds on the page. TypeSafe, a compatible endpoint, or Cloudflare Clef.

mergeone

★ 14▲ 2

haalp/mergeone

Merge gateway for agent-written pull requests: a decision model, Jev by default, answers typed questions about each PR, and a policy file you own turns the probabilities into pass, hold or block.

Super Jev

★ 14

Kevthetech143/super-jev

Puts one judge between an agent and your data: it finds the file, checks the claim, and permits or refuses the action.

teo-nex/jew-codex-harness

Installer and local router that adds a jev/auto model to Codex, with Jev picking the model and reasoning effort for each task. Public alpha, for fresh Codex profiles.

Model RoutingJavaScript

tisco

★ 14

ailiahq/tisco

Terminal tool that transcribes a folder of video clips, has Jev judge the transcripts against a plain-language request, and previews every move or rename for approval before anything changes, with undo.

jevwright

★ 14

Ice-Hazymoon/jevwright

Browser tests for business flows written as the steps a user takes: the model finds each control once, and the recording replays without it.

IronBee Express

★ 14▲ 1

ironbee-ai/ironbee-express

Browser agent for checking that a web app really did what the page says: each step is one Jev choice over the page's controls, a text model is optional, and a recorded run replays with no step decisions. Elastic-2.0.

jevql

★ 14

kylemclaren/jevql

A psql-shaped CLI and Go/TypeScript/Python SDKs that add jev(), jev_prob, jev_choice, and jev_score to queries against a vanilla Postgres with no extension. The SQL runs on the server and Jev judges the surviving rows in batches.

prasanthj/duckdb-jev

Native C++ DuckDB extension that runs Noul predicates, Choice classification and Score rubrics on Jev from SQL, batching and streaming requests across rows with retries, caching and per-query budgets.

Oko

★ 14

bartlomein/oko

Local code search for coding agents over MCP: candidates from keywords, symbols and file structure, then Jev picks the excerpts that answer the question. Selected snippets are sent to TypeSafe; --no-jev keeps keyword ranking only.

JevGPT

★ 14▲ 2

sunyasheng/JevGPT

Research code for a paper in which Jev inspects sources in parallel while a language model plans the research, with frozen configs, per-item records and a script that rebuilds the paper's tables.

SamratDuttaOfficial/WaterSheep

An open-weight model that answers Choice, Score and Noul questions, plus multi-label ones, with a probability for every option. Serves a local POST /v1/systemone endpoint; its README says TypeSafe's Python SDK works against it by changing the base URL. Also runs in the browser through ONNX.

Groot 1

★ 14▲ 2

leofmarciano/groot

Open typed-decision model on mmBERT encoders with a long-state memory, served behind POST /v1/systemone, plus a pure Bend implementation of the forward pass.

paseo-slp-plugin

★ 13▲ 2

duongvm57/paseo-slp-plugin

Supervisor, Lead and Peer roles for a team of Paseo coding agents, with opt-in Jev routing that records a verifiable receipt in shadow mode and binds it when armed. English and Vietnamese.

Yardsort

★ 13

joaoh82/yardsort

Desktop app for running coding agents in parallel, each in its own git worktree, with optional Jev judgements on each change. GPL-3.0.

jerryfane/omp-jev-compaction

The fast-jev-compaction approach as a plugin for the omp coding agent: Jev scores every tool call and result, stale ones shrink to a recoverable note, and the rest passes through verbatim.

jev-engineering

★ 13▲ 2

eugeniughelbur/jev-engineering

Two coding-agent tools on Jev with benchmarks you can rerun: jev-gate judges each shell command an agent is about to run, and review-router, a GitHub Action, decides from a diff whether an AI reviewer must read the whole pull request.

philippdubach/pi-jev-router

Ranks the OpenRouter catalogue per task, takes the Pareto frontier over quality, cost and latency, and routes pi to the knee point.

Model RoutingTypeScriptReviewed

jev-pilot

★ 13▲ 1

Akramovic1/jev-pilot

Claude Code plugin that asks Jev before each turn for the reasoning effort, subagent model and skill to use, with a decision log, tuning suggestions and an animated pet that says what Jev decided.

Model RoutingTypeScript

tontoko/jev-browser

One core behind a typed SDK, a persistent CLI and an MCP server: native Playwright operations and assertions need no key, and only the natural-language paths call Jev. Japanese.

KiritoKing/midscene-jev-runner

Community runner for Midscene Test that adds jevAct, jevAssert and jevWaitFor nodes over a Playwright page, with a bounded non-text action space: click, select, scroll, wait, dismiss.

SOLO

★ 13

0814wdwd/solo_jev

Reorders rows and fields so a prefix-caching backend reuses more work when a decision model judges every record in a large table; ships a vLLM backend for the open AutoTrust JEV-9B model and works with your own.

Data & ObservabilityPythonReviewed

jevotron

★ 13

ai4curation/jevotron

CLI for field-level anomaly detection in tabular, structured and text files, SQLite and DuckDB, flagging the fields worth a second look with Jev. BSD-3-Clause.

sift

★ 13▲ 1

bohutang/sift

Chrome extension that labels every post on X - substance, humor, chit-chat, promo, junk - flags the AI-written and off-topic ones, and hides whichever categories you turn off. The author reports about $0.00003 per post.

JevBench/jevbench

Tests whether a decision model's probabilities fit together, using 50 laws of probability and choice and no gold labels. Unrelated to the JevBench above.

what-the-jev

★ 13▲ 2

keta1930/what-the-jev

Reproducible experiments and reports on what Jev can and cannot do, run through OpenRouter: knowledge benchmarks, bias, skill routing and price prediction.

usejev

★ 13

ali-master/usejev

Runs Laya under Bun with native ONNX inference behind a TypeSafe-compatible API, so the official SDK reaches it with a baseURL. Ships an English and Persian playground.

ruling

★ 13

bradAGI/ruling

Turns any open chat model into a local decision engine: a state and typed questions in, a probability for every option out, no text generated. Not affiliated with TypeSafe.

laya-rs

★ 13

redwolf2019/laya-rs

Pure-Rust runtime and HTTP server for Laya on ONNX Runtime, CPU-first, defaulting to the multilingual model, with portable builds for Linux, Windows and macOS. Chinese and English docs.

verdict

★ 13

sgyaqing/verdict

Rust serving engine for open System One models (decider-2b, Von, Laya) behind a Jev-compatible /v1/systemone API, on GPU or CPU. The author reports large throughput gains over the models' own servers.

jevcraft

★ 13

mrubens/jevcraft

Mineflayer Minecraft bot in which code lists the options available at each moment and Jev picks one, with a write-up of what went wrong and how the menu was fixed.

jev4k

★ 12

pambrose/jev4k

Kotlin Multiplatform DSL and client, published to Maven Central.

Premo-Cloud/typesafe-sdk-java

Java 17+ client with typed Ask declarations that read answers back as enums and records, plus a Spring Boot starter; Jackson is its only dependency.

kushals256/jevcache

OpenAI-compatible proxy that asks a System One model whether a new question is the same one it has already answered, and replays the cached reply when it is. Not the same project as the jevcache above.

jevelry

★ 12▲ 1

backant-io/jevelry

Puts Jev behind ordinary decisions across a codebase and keeps a record of each one it makes.

ismaelsoilet/jev-harness

Five semantic gates in front of a frontier agent, for trivial errors and doom loops, with a dependency-free local deterministic mode. English and Portuguese. One of three projects on this list called jev-harness.

cyberofficial/dsh-plugin-jev

Gives the agent in DeepSeek Harness's web GUI a jev_ask tool, so the model calls Jev itself when a decision needs a calibrated answer, with a per-chat usage chip. No licence file.

integrate-your-mind/jev-codex-plugin

Codex and Claude Code plugin whose MCP tools and hooks ask Jev to choose tools or strategies, diagnose failed commands and check completion claims against evidence; automatic consultation is off until enabled.

JevFlow

★ 12

Parth1811/JevFlow

Claude Code plugin that has Claude plan work as phases with shell checks; when the agent tries to stop, it runs the checks and asks Jev whether the work is really done. A live viewer follows several agents on one plan.

guardrails-md

★ 12▲ 1

berget-ai/guardrails-md

Gate for opencode, pi and Claude Code that scores every bash command for destruction, secret leaks and breaches of your GUARDRAILS.md, and blocks it above a threshold with a reason the agent can act on.

da-vinci-noob/pi-jev-model-router

Reads each pi prompt with four typed questions before the turn starts and picks a model tier, with a budget and an automatic fallback.

Model RoutingTypeScript

collapseindex/jev-ultralightspeed

Packs many items into one Jev request for bulk classification. If any item in a pack comes back unanswered it raises and names the item rather than returning a partial result.

Data & ObservabilityPythonReviewed

quietly

★ 12

joeydash/quietly

Chrome extension that drafts replies on WhatsApp Web and Gmail and quiets the YouTube feed; the YouTube sorting is a yes/no question per video, on Jev by default.

MarissaFamularo/citation-verifier

Checks whether each cited paper supports the sentence citing it: Claude finds the quote, Jev judges support with a probability you can read as a reliability mark. Hosted version available.

Foq

★ 12

yohanargentina-oss/Foq

Local ternary 8B decision model that answers Choice, Noul and Score questions through its own API and marks low-confidence answers needs_review. Loading the weights needs a llama.cpp fork.

Cerno

★ 12

apertixsk/cerno-inference

Inference code for 4B, 9B and 27B Jev-style decision models with FP8 weights on Hugging Face, taking the /v1/systemone request shape through vLLM or llama.cpp. Needs a 24 GB GPU.

trade-jev

★ 12

justinhe16/trade-jev

Backtests Jev as a buy, sell or hold trader on NQ level-10 order-book data.

FinancePython

x402check

★ 12

caiovicentino/jev-risk-check-provider

Pre-payment risk-check provider for x402 agents and wallets: sanctions lists, phishing feeds and transaction simulation, plus Jev questions over what the agent acted on to catch injected instructions. Signed verdicts.

FinanceTypeScript

ticofab/scala-jev-sdk

Scala 3 client for /v1/systemone on sttp, with typed requests and answers and no effect system bundled. Apache-2.0.

jev-tree

★ 11

reachjalil/jev-tree

Recursive Choice over a taxonomy, for picking among more options than a single Choice question allows.

Libraries & IntegrationsTypeScriptReviewed

frostney/clean-code-review

Reviews every code file in a pull request against a question set drawn from *Clean Code*: Jev answers, Luna writes the review. Runs on eve with Jev through Vercel's AI Gateway; a hosted version is live.

jevmory

★ 11

romiluz13/jevmory

Memory for coding agents where every fact is a verbatim quote, graded by Jev into keep, stale, wrong or unsupported, with local SQLite receipts and jevmory audit for existing memory files.

mblode/taste-lint

Design review on every commit: 28 blocking checks and more advisory ones, with the fuzzy ones — vague errors, bare confirm labels, empty states — sent to Jev through Vercel's AI Gateway as review notes.

pi-jev-context

★ 11▲ 1

Nyarlathoteppppp/pi-jev-context

Pi extension that collapses repeated file reads and, opt-in, has Jev mark the passing-test noise in long logs while code keeps every failure; a recall tool returns anything shortened verbatim.

SoyJorgePilo/jev-demo

Three teaching demos where Jev answers and code acts on the probabilities: Jira ticket triage, flagging functions for Claude to review, and routing pull requests to rules, Haiku or Sonnet. Spanish.

judgelint

★ 11

jpcamara/judgelint

Linter for conventions written as plain-English bullets in a README: it asks a decision model, Jev by default in its guide, whether each file breaks each bullet and reports violations with line numbers and an exit code.

sensored

★ 11

atomicpages/sensored

Streaming PII redaction for TypeScript with regex and NER detectors, and an opt-in step where Jev confirms a detection before it is redacted.

dejevu

★ 11

idovmamane/dejevu

Browser agents that act on one look at the page; the default backend is any open model, and --backend typesafe makes Jev the chooser instead.

jacks3tr/Jev-Desktop

Lets an agent hand off a Windows desktop task through MCP or the command line: Jev observes windows, chooses controls and types supplied text, and the agent gets the result or a request for help. Alpha.

LuliYanng/LiquidType

Liquid Glass style voice typing for macOS 26 with an optional Jev fast path that types clean short sentences immediately instead of waiting for LLM cleanup.

kunko-ai-labs/judge-audit

Pre-registered calibration audits of AI judges, comparing Jev's native probabilities with LLMs' verbalised confidence and vote shares, caveats stated beside every result.

ishida-lab/ProbabilityBench

Synthetic text worlds with exact ground-truth probabilities, for scoring how well decision models such as Jev are calibrated, through OpenRouter. With a paper.

akitaonrails/jev-docs-benchmarks

Research notes and a benchmark comparing hosted Jev with other hosted and local decision models on following supplied rules, probability behaviour and operating cost, with frozen inputs and raw response archives. No licence.

JuneYaooo/jev-healthcare-lab

Compares Jev with DeepSeek on healthcare judgement tasks, from triage urgency to contraindications and trial referral, with the task sets, scoring and raw results published. Exam cases, not clinical validation. Chinese and English.

Carve-Jev

★ 11

FuturixAI-and-Quantum-Works/carve-jev

Open Jev-like model family that reads one-token decisions from Qwen3.8 under vLLM and serves a TypeSafe-shaped API, with one-command setup.

Decis

★ 11

chaitin/Decis

Self-hosted server that answers Jev's /v1/systemone route from open weights (Laya, kev, jeff), one Docker image per engine, behind its own API key.

wonseokjung/connect-tycoon

Gymnasium company simulator for training a decision model with imitation and then PPO, asking a person when unsure; every decision uses Jev's Choice request and answer shape, so Jev itself can be tested in it too. Korean.

BrendanH18/jev_fsd

Driving simulator on real Canadian streets built from OpenStreetMap, where Jev or another decision model drives and every choice can be rewound to see what it considered; a rule-based driver works without a key.

SwiftJev

★ 10

SoundBlaster/SwiftJev

Jev backend for the author's SwiftDecision framework: validates Noul, Choice and Score requests and responses on Apple platforms, with a configurable API root for compatible proxies.

kojev

★ 10

ItisNoMatter/kojev

Kotlin Multiplatform client that takes questions defined as your own enums and sealed types and returns Jev's answers in those types rather than string keys.

ismaildasci/claude-referee

Unofficial Claude Code plugin and GitHub Action that sends checkable questions, such as whether a task is really done or which option fits your rules, to Jev and keeps a local log of every check.

Jevia

★ 10

assistant-ui/jevia

Local-first, outcome-based router for coding harnesses: it picks a capability tier per task, applies your safety policy, and learns from recorded execution history.

xinwang-nwpu/jev-mobile

Operates an Android phone from one sentence: Jev picks one action per step from the accessibility tree, executed over ADB, with a local or vision model available to take over. Chinese and English.

danielnc/jev-browse

Helpers for browser-harness that let Claude Code or Codex hand off a whole website sub-task in one call, with Jev deciding each step and returning the outcome or a typed reason it stopped. A port of jev-ultrafast.

GeekLinkDev/jev-subtitle-translator

Translates SRT subtitles with an LLM of your choice through OpenRouter, keeping every cue and timestamp, then has Jev check each source and translation pair and flag lines for human review; it can also check an existing translation on its own.

jevcal

★ 10

abhixhek/jevcal

Picks the confidence threshold that meets your accuracy target on your own data, and fails CI when a model update breaks it.

anisselbd/jev-phishing-bench

Reproducible benchmark that runs Jev and Claude Haiku 4.5 over the same 2,000 phishing emails and compares accuracy, calibration, stability across repeated passes, latency and cost, with every step scripted.

Algorythm-Canada/OpenJevSwift

Native Swift implementation of the OpenJev typed-decision server: yes/no, choice and score answers on Apple platforms, with a triage demo app.

Jebadiah

★ 10

getainode/jebadiah

Open System One decision model on Qwen backbones, publishing the trainer, data builders, evaluations and the record of every run, with weights on Hugging Face and a server that answers Jev's /v1/systemone shape.

basal-rs

★ 10

itsoltech/basal-rs

Rust inference engine and server, on CUDA, Metal and Intel Arc, for Remek Kinas's Bielik-based Basal decision models, serving the System One contract at /v1/systemone alongside Basal's own endpoint. Polish.

Decisio

★ 10

aminry/decisio

Self-hosted server that answers typed questions with a probability for every option from one forward pass of a frozen Qwen or Gemma base, and can fit a correction to labelled examples of your own question.

SergeyBazhmin/krasivo-jev

Training data and models for a one-pass decision model: 100 Hugging Face datasets converted to one state, question, options and label format, Qwen3.5-2B LoRA models with a pointer head, held-out benchmarks, and a vLLM plugin with a client that returns SDK-shaped answers. No licence yet.

Fovea

★ 10

Sivasuthan9/fovea

Open 4B decision model for images, with an SDK and a local server that answers TypeSafe's System One API, so typed questions can be asked about a picture.

bskkimm/DriveSceneMiner

Turns nuPlan or Autoware driving logs into evidence scripts, asks Jev lateral and longitudinal manoeuvre questions, and merges the answers into timestamped scenes to review.

JevLight

★ 10

usail-hkust/JevLight

Traffic-signal control in the SUMO simulator where Jev picks each intersection's next phase, with a harness for comparing local Jev-style models. No licence yet.

jeq

★ 9

cristianoliveira/jeq

Typed questions in a shell pipeline, for scripts and agents that want an answer without the boilerplate.

valentynkit/jev-skip

Browser extension that reads the caption track and paints a sponsor-probability overlay on the YouTube seek bar before the intro ends, with no crowd database. The author reports catching 77% of SponsorBlock's sponsor seconds across 23 videos at $0.0008 per video.

Apps & Browser ExtensionsTypeScriptReviewed

valentynkit/jev-plays-pokemon-red

Pokemon Red on PyBoy where code owns the route and the arithmetic and Jev only picks at branches, logging a Brier-scored faint prediction against RAM state on every battle turn.

zod-jev

★ 8

jomatsu/zod-jev

Adds Jev semantic checks to Zod 4 schemas. Zod validates the shape; Jev validates the meaning.

Libraries & IntegrationsTypeScriptReviewed

openqa-cn/jev-browser

Browser automation that indexes the controls inside the page and has Jev choose one, instead of sending a screenshot to a vision model on every step.

Browser & Computer UseTypeScriptReviewed

valentynkit/jev.nvim

Neovim plugin that splits the buffer into functions with Treesitter, has Jev score each one against a plain-language question, and lists the answers in the quickfix window ranked by probability.

SNAP

★ 8

emnlmn/snap

Local, deterministic typed decisions from one forward pass of an open model, serving the Jev request shape.

andrelandgraf/safer-with-jev

Neon Function proxy for the Neon AI Gateway. Jev classifies each request and routes it to the right downstream model.

Model RoutingTypeScriptReviewed

FeiLiuEM/open-medical-jev

Two frozen off-the-shelf models answer a yes/no judgment per option, and their agreement becomes a confidence, an auto-release gate and a guaranteed candidate set. Nothing is trained. Its figures are measured against Jev 1.13.0 on national medical exams and are author-reported. Chinese and English.

robertn702/reasoning-router

Asks a classifier, Jev by default, how much reasoning each step of a coding session needs, so one model handles quick edits and hard debugging; an OpenCode plugin, a Pi extension and a local proxy for Codex CLI. Successor to opencode-jev-router.

Model RoutingTypeScript

markjaquith/typesafe-ai-playground

Rust CLI of Jev experiments, including PHI detection, code-comment review, live tone analysis, and occupation and industry classification.

Command-Line ToolsRustReviewed

noelzappy/tripwire

Runs seven checks on every LLM response in one Jev call, as AI SDK middleware or an OpenAI-compatible proxy.

Guardrails & SafetyTypeScriptReviewed

iamvatsalpatel/tiershift

Sends each LLM request to the cheapest model tier that can handle it and escalates on evidence.

Model RoutingTypeScriptReviewed

klauswg/jev-guard

Risk-triage gateway for exchange deposits and withdrawals: hard rules run first, Jev answers risk and pattern questions, and Java code makes the final call. Mock mode needs no key.

aoprisan/jev-ts-repl

Terminal REPL for shaping System One requests before writing code. Simulates answers when no API key is set.

Command-Line ToolsTypeScriptReviewed

klauswg/jev-suite

Four decision-quality apps on one kernel, each asking Jev a structured question about whether something was delivered as required, with deterministic code keeping the final say.

Janus

★ 2

FirasSX914/Janus

Measures Jev's calibration and confidence-based routing on Banking77 and Web of Science.

m0rphtail/triagedy

Security alert triage as a Unix filter: JSONL alerts in, typed decisions out.

Command-Line ToolsRustReviewed

ably-labs/jev-pong

Pong where the ball moves one step per model decision, pitting Jev against chat LLMs.

Games & Real-Time DemosTypeScriptReviewed

rashedInt32/jev-gates

Seven calibrated gates for Claude Code (rules, scope, intent, done, claims, proof, and commit honesty) that escalate but never approve.

Guardrails & SafetyJavaScriptReviewed

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