Home / All projects

All projects

Search and filter every project on the list. Local search finds candidates; Jev reorders the top 30.

/ to search
reranked by Jev356 of 356

reranked by Jev

Local search finds candidates; one Jev call reorders the top 30 by how well each one-liner answers your query.

About

typesafe-sdk-js

TypeScript and JavaScript client with answer types inferred from your questions.

★ 284TypeScriptLibrary or SDK
SDK or client libraryClassification and extraction

typesafe-sdk-python

Python client, sync and async.

★ 308PythonLibrary or SDK
SDK or client libraryClassification and extraction

system-one-adapter-python

Same `TypeSafeClient` interface backed by an LLM API, so you can compare Jev against a chat model on identical questions.

★ 407PythonLibrary or SDK
Benchmarks and evalsSDK or client library

skills

Agent skills for designing questions, building workflows, and evaluating them.

★ 2,875Hook or plugin
Output verificationClassification and extraction

Agent skill

How to install the official skill in Claude Code, Cursor, and friends.

Hook or plugin

Vercel AI SDK provider

`@ai-sdk/typesafe-ai` exposes Jev through `experimental_evaluate`.

Library or SDK
Output verificationBenchmarks and evals

eve

Vercel's agent framework; Jev is the typed judge in its evaluate step.

★ 5,789TypeScriptLibrary or SDK
Output verificationPlaygrounds and demos

ai-cli

The Vercel AI SDK in your terminal, with an evaluate path that runs on Jev.

★ 892TypeScriptCLI
Output verificationBenchmarks and evals

fast-jev-compaction

Replaces the compaction summary with Jev decisions: every tool call and result scored in one request, stale ones dropped, everything kept stays verbatim.

★ 7,839TypeScriptHook or plugin
Context compactionSDK or client library

jev-router

Routes each task to the cheapest Claude model that can handle it.

★ 652JavaScriptCLI
Model routingPlaygrounds and demos

winnow

Judges every tool result before it enters context, so the window fills slower instead of being cleaned later.

★ 114PythonHook or plugin
Context compactionPlaygrounds and demos

yoshi

Context-pruning proxy for Claude Code and Codex, with the savings measured rather than claimed.

★ 31TypeScriptProxy or service
Context compactionPlaygrounds and demos

skillranker

Rust CLI and hooks that rank installed skills for the next step using live session context, with abstention.

★ 138RustCLI
Playgrounds and demosTool gating and guardrails

jcm-router

Local proxy that picks model and effort per message and leaves the cached main chat alone.

★ 8TypeScriptProxy or service
Model routingPlaygrounds and demos

jev-skillful

Per-prompt router over skills, MCP servers, agents, and commands, and it measures whether the injection helped.

★ 8TypeScriptHook or plugin
Context compactionMCP and agent integration

limpet

A Stop hook that keeps the agent from stopping too early, judged against plain-language rules.

★ 7PythonHook or plugin
Tool gating and guardrails

jevwire

MCP server, embeddable decision model, and an escalate-only plugin that can make the harness stricter but never looser.

★ 25TypeScriptMCP server
Tool gating and guardrailsMCP and agent integration

jev-code

Command-line toolkit that coding agents hand judgment-heavy work to, one typed Jev workflow per request.

★ 119TypeScriptCLI
Output verificationCode review

vexjoy-agent

Agent toolkit whose `/d` command picks the specialist agent, skill, and pipeline with one Jev call, plus an optional Jev auto-compact plugin.

★ 445PythonHook or plugin
Tool gating and guardrailsOutput verification

save-token-jev

Compaction that asks Jev which tool calls still matter and keeps the rest verbatim, with adapters for Claude Code, Codex, OpenCode, and raw API transcripts.

★ 82TypeScriptHook or plugin
Context compactionSDK or client library

jev-pruner

Trims long Bash output with Jev after the command runs and before the model sees it; short output, errors, and structured formats pass untouched.

★ 167TypeScriptHook or plugin
Context compaction

jev-rules

Scores your standing rules against each prompt and delivers only the ones that apply, once per session.

★ 65JavaScriptHook or plugin
Context compactionPlaygrounds and demos

jev-belay

Stop hook that blocks an unverified "done": reads the transcript for evidence and, only when files changed with no passing check since, spends one four-question Jev call; fails open on every error path.

★ 45JavaScriptHook or plugin
Output verificationTool gating and guardrails

jev-use

Hands the Claude Code, Codex and pi steps that need no text output to Jev, with a typed escalation contract for everything it should not decide.

★ 67JavaScriptHook or plugin
Tool gating and guardrailsContext compaction

jev-skill-router

Hook that asks Jev which installed skill fits each prompt and logs the answer; in the author's week of shadow mode, 28 of 539 suggestions were followed by a call of that skill, and the author then removed it.

★ 20PythonHook or plugin
Benchmarks and evalsPlaygrounds and demos

jev-codex-router

Picks model, thinking depth, and speed mode for every Codex turn.

★ 273JavaScriptHook or pluginarchived
Model routingPlaygrounds and demos

codex-jev-router

Uses Jev to select the model and reasoning effort for Codex subagents, with confidence gates and a Sol fallback.

★ 10JavaScriptMCP server
Model routingMCP and agent integration

Astra-Ares

Has Jev pick the reasoning effort and how long to hold it for a running Codex task, on a patched Codex CLI built from upstream source.

★ 315JavaScriptCLI
Playgrounds and demos

pi-jev by y0usaf

A measured tool-call gate plus a `jev_ask` tool for typed answers inside Pi.

★ 169TypeScriptHook or plugin
Tool gating and guardrailsOutput verification

pi-warden

Guardrails that steer instead of interrupt: irreversible calls, off-task calls, stuck loops, unverified done claims, about 250 ms each.

★ 178TypeScriptHook or plugin
Tool gating and guardrailsOutput verification

pi-jev-auto-mode

Auto-approves bash, write, and edit calls semantically and fails closed when it cannot decide.

★ 33TypeScriptHook or plugin
Tool gating and guardrailsPlaygrounds and demos

pi-jev by TheoOliveira

Semantic tool routing and typed decisions as Pi tools.

★ 72TypeScriptHook or plugin
Output verificationContext compaction

pi-jev-router

Automatic model routing for Pi through the Vercel AI Gateway.

★ 17JavaScriptHook or plugin
Playgrounds and demosModel routing

pi-fast-jev-compaction

The verbatim compaction idea, ported to Pi.

★ 12TypeScriptHook or plugin
Context compactionPlaygrounds and demos

bicameral

Hybrid harness for Pi: an LLM writes the code, Jev reflexes gate every call as allow, confirm, block, warn, or steer.

★ 8TypeScriptHook or plugin
Tool gating and guardrailsOutput verification

pi-quiet-ask

Jev as the Pi coding agent's quiet decision layer.

★ 12TypeScriptHook or plugin
Tool gating and guardrailsOutput verification

pi-typesafe-jev

Pi extension exposing Jev judgments as five Pi tools.

★ 3TypeScriptHook or plugin
Output verificationTool gating and guardrails

pi-typesafe

Batched evaluation tool, terminal playground, and a typed API for Pi extension authors.

★ 48TypeScriptHook or plugin
Playgrounds and demosOutput verification

pi-heed

Checks every side-effecting tool call against what you said earlier in the session, so "review only" still holds after compaction.

★ 14TypeScriptHook or plugin
Tool gating and guardrailsContext compaction

pi-jev-sentinel

Checks Pi tool calls, tool outputs, and replies for risky actions and prompt injection, with user approvals, context re-checks, secret scrubbing, and optional task pinning.

★ 15TypeScriptHook or plugin
Tool gating and guardrailsOutput verification

pi-mcp-adapter

Opt-in typed evaluation and semantic search over MCP tool results, behind a per-server data-egress allowlist.

★ 1,640TypeScriptHook or plugin
Context compactionOutput verification

mu

Coding agent and desktop app built on Pi that hands 38 routine decisions to Jev, from which tool output enters the context to prompt-injection screening and checking a "done", each one switchable between active, shadow and off with every verdict in a local ledger; pre-release.

★ 573TypeScriptCLI
Tool gating and guardrailsOutput verification

typesafe-skill-router

Names the one skill worth loading before the model call; stdlib only, about a tenth of a cent per turn.

★ 15PythonHook or plugin
Context compactionPlaygrounds and demos

jev-agent-skill-router

Confidence-aware skill routing with an abstain path.

★ 32PythonLibrary or SDK
Model routingTool gating and guardrails

hermes-jev

Typed decisions, ranking, verification, and an opt-in tool gate.

★ 52PythonHook or plugin
Tool gating and guardrailsOutput verification

ask-jev-skill

Lets Hermes and similar agents ask Jev directly.

★ 40PythonHook or plugin
Output verificationTool gating and guardrails

hermes-jev-plugin

Four Hermes tools for atomic checks, routing, and rubric scoring; listed in the Hermes plugin catalog.

★ 12PythonHook or plugin
Output verificationTool gating and guardrails

hermes-jev-approvals

Approves, denies, or escalates flagged shell commands before they run; vendor-reported speedups.

★ 23PythonHook or plugin
Tool gating and guardrailsCommand line tooling

a0-typesafe-ai

Typed tools and probability cards for Agent Zero.

★ 5PythonHook or plugin
Output verificationPlaygrounds and demos

skillbox

Self-hosted, versioned skills library served over MCP, with Jev recommending which skill to load.

★ 277TypeScriptMCP server
MCP and agent integrationPlaygrounds and demos

jev-mcp by jkudish

The first MCP server for Jev, and still the most linked.

★ 569JavaScriptMCP server
Output verificationMCP and agent integration

typesafe-mcp

Go MCP connector.

★ 357GoMCP server
MCP and agent integrationPlaygrounds and demos

jev-mcp by blakestone-x

Classify, score, check, match, and screen, with confidence on every answer.

★ 25PythonMCP server
MCP and agent integrationOutput verification

Jevbridge

ACP and MCP adapter that pairs Jev with any LLM for computer use and typed decisions.

★ 48TypeScriptMCP server
MCP and agent integrationTool gating and guardrails

jev-eval-mcp

Eval-first MCP server: prototype a question, map it over many items, then measure variants against labeled examples with a threshold sweep.

★ 3TypeScriptMCP server
Benchmarks and evalsOutput verification

azdaja

Recursive language model layer for Claude Code, Codex, Gemini, and OpenCode that keeps full sources in a local evaluator; Jev is an optional leaf for reranking, verification, classification, and semantic joins, with budgeted, checkpointed batches.

★ 14PythonCLI
Output verificationClassification and extraction

building-with-jev-skill

Skill for writing and improving programs that call Jev.

★ 166Hook or plugin
SDK or client libraryOutput verification

jev-system-architect

Finds the fuzzy judgment in a system and turns it into small Choice, Score, and Noul primitives.

★ 3Hook or plugin
Classification and extractionOutput verification

jev-judgment

Sends a coding agent's closed judgments to Jev instead of the chat model.

★ 6PythonHook or plugin
Output verificationTool gating and guardrails

skills by fabricioctelles

Agent-skill directory that can score subjective evaluation criteria with Jev.

★ 129TypeScriptHook or plugin
Output verificationPlaygrounds and demos

Augustus

Skill for deciding where a typed judgment belongs at all and what stays in code; a companion to the official skill, not a replacement.

★ 13PythonLibrary or SDK
Benchmarks and evalsTool gating and guardrails

hermes-jev-skills

Hands an agent's small decisions to Jev: which model answers the turn, which skills to load, which passages matter, which turns survive compaction.

★ 1,293PythonLibrary or SDK
Context compactionModel routing

Stanley

Coding CLI where Jev routes a plain-language request to one deterministic workflow, and that workflow asks Jev fixed-choice questions about the evidence it gathered.

★ 119TypeScriptCLI
Code reviewOutput verification

JevHarness

Has an LLM write a task-specific harness that turns observations into Jev questions, then freezes it and improves it from rewards and full execution traces.

★ 552PythonLibrary or SDK
Playgrounds and demosBenchmarks and evals

building-with-typesafe-jev

Skill that packs the Choice, Score, and Noul API shapes, confidence thresholds, and 150+ community projects with a code sketch each, so an agent can design without fetching the docs.

★ 148PythonHook or plugin
Classification and extractionPlaygrounds and demos

jev-ultrafast

One request picks both the operation and the target element from an indexed DOM table; a small LLM only writes typed text. Zürich to London booked in 7.1 seconds.

★ 24,161PythonLibrary or SDK
Playgrounds and demosBrowser and computer use

typesafe-computer-use

OCR the screen, classify the next action, click; about $0.0002 a step on macOS.

★ 1,284PythonCLI
Browser and computer usePlaygrounds and demos

mobile-jev

The same loop on a real Android phone; nine Uber actions in 21 seconds in the demo.

★ 460JavaScriptCLI
Playgrounds and demosMobile automation

jev-browser by jkudish

The first community browser agent on Jev, with a demo GIF.

★ 367JavaScriptLibrary or SDK
Playgrounds and demosMCP and agent integration

jev-voice-browser

Intent and target decided per spoken word in about 300 ms, often before the sentence ends.

★ 425JavaScriptCLI
Voice and realtimePlaygrounds and demos

jev-browser by Ying-Kai-Liao

An LLM plans, Jev decides; library, CLI, and MCP server.

★ 128JavaScriptMCP server
MCP and agent integrationPlaygrounds and demos

jev-browser by tontoko

One grounded Jev and Playwright core behind a typed SDK, a persistent CLI, and an MCP server.

★ 13JavaScriptMCP server
MCP and agent integrationSDK or client library

jev-mobile

Android sub-agent over USB running observe, normalize, decide, mutate, verify, with Jev deciding.

★ 14PythonCLI
Mobile automationTool gating and guardrails

jev-ego

Browser agent that spends one Jev request per step to pick the action.

★ 17TypeScriptCLI
Playgrounds and demosBrowser and computer use

jev-browser-use

Codex skill and plugin where Jev handles navigation, clicks, and scrolling and Codex keeps typing and verification; reports browser steps 5 to 10 times faster.

★ 1,207JavaScriptHook or plugin
Playgrounds and demosBrowser and computer use

Jev-cu

Codex computer use where Jev picks the element, action, completion, and risk from on-screen text, no screenshots sent; Chinese readme.

★ 631JavaScriptHook or plugin
Tool gating and guardrailsBrowser and computer use

JevScout

Job-hunting skill that drives Chrome over CDP and has Jev score every link and listing.

★ 38PythonCLI
Playgrounds and demosBrowser and computer use

Jev Social

Lets Jev choose each read-only social research step while socai runs it in a real Chrome session and streams inspectable Instagram, TikTok, or LinkedIn evidence into a report.

★ 196JavaScriptCLI
Playgrounds and demosOutput verification

jev-use by savka777

Voice and typed computer use for macOS: Jev picks the next on-screen action from the Accessibility tree, with no screenshots.

★ 128SwiftOther
Browser and computer usePlaygrounds and demos

jev-mobile by xinwang-nwpu

Android automation where one Jev request picks both the action and the target element from the accessibility tree, executed over ADB.

★ 10PythonCLI
Mobile automationPlaygrounds and demos

jev-browser-use by imanshu03

Runs browser tasks from a plain-language instruction over CDP or Vercel's agent-browser, with Jev selecting operations and targets and code checking confidence before it acts.

★ 1TypeScriptCLI
Playgrounds and demosTool gating and guardrails

jev-gui-delegate

Runs a delegated GUI task for Codex through the real Chrome session or Windows UI Automation, with Jev picking the control at each step.

★ 165PythonCLI
Browser and computer useTool gating and guardrails

SemIf

Semantic ifs from open models on a single 3090; the most starred independent replica, formerly openjev.

★ 4,924PythonWeb app
Tool gating and guardrailsClassification and extraction

jevlike

Open option scorer that reads candidate logits instead of generating JSON.

★ 1,366PythonLibrary or SDK
Classification and extractionPlaygrounds and demos

NanoJev

0.6B replica with parallel decisions, dynamic candidates, and an end-to-end training pipeline.

★ 2,578PythonLibrary or SDK
Playgrounds and demosBenchmarks and evals

openjev-sglang

Jev-compatible API endpoint on SGLang, prefill only.

★ 333PythonProxy or servicearchived

jev-visual

Educational visual-inference variant on Apple Silicon: shared context, direct candidate scoring.

★ 327PythonCLI
SDK or client libraryCommand line tooling

reflex

Small open decision model on Qwen3.5: state plus typed questions to calibrated probabilities.

★ 172PythonProxy or service
Open-model replicasSDK or client library

decider

One-pass typed decisions fine-tuned from Qwen3.5-2B.

★ 1,170PythonLibrary or SDK
Open-model replicasSDK or client library

jevmlx

Parallel constrained decisions for any MLX model on Apple Silicon, one forward pass.

★ 77PythonLibrary or SDK
Classification and extractionPlaygrounds and demos

mini-jev

Preregistered experiment on a frozen Qwen3-4B: read the option letter's logits, skip the JSON.

★ 61PythonDataset or benchmark
Benchmarks and evalsClassification and extraction

system-one-open

Typed calibrated decisions in one forward pass on Gemma 4 E2B and Gemma 3 270M.

★ 41PythonProxy or service
Classification and extractionPlaygrounds and demos

Verdict-open-jev

Non-autoregressive decision engine on ModernBERT with calibrated uncertainty and an in-browser WebGPU playground.

★ 115PythonLibrary or SDK
Benchmarks and evalsPlaygrounds and demos

jevfire

Parallel decisions for CUDA LLMs through a vLLM API, with game-agent examples and benchmarks.

★ 76JavaScriptLibrary or SDK
Playgrounds and demosGames and simulation

jevbetter

A stronger one-pass scorer with a head-to-head benchmark against the jevlike starter design.

★ 15PythonLibrary or SDK
Model routingBenchmarks and evals

open-alternative-jev

Typed, calibrated decisions from any open-weights model in one forward pass, on Hugging Face and vLLM.

★ 76PythonLibrary or SDK
Open-model replicasClassification and extraction

openjev by zhihz

Bilingual local decisions from context, questions, and candidate answers.

★ 37PythonCLI
Output verificationBenchmarks and evals

jev-on-a-laptop

Study of Jev-style decisions on stock 1.5B to 8B models on a laptop, with a Hugging Face demo.

★ 25PythonCLI
Benchmarks and evalsPlaygrounds and demos

typesafe-ai-benchmark

LLM gateway that mimics the TypeSafe response shape, useful as a stand-in while you wait for a key.

★ 38TypeScriptProxy or service
Benchmarks and evalsOutput verification

openvons

Open decision layer answering a finite option set with probabilities split into execute, confirm, and reject. Independent replica, not TypeSafe weights.

★ 14PythonLibrary or SDK
Tool gating and guardrailsOutput verification

von

Non-autoregressive open decision model reporting under 15 ms locally, as a drop-in alternative to Jev.

★ 922PythonLibrary or SDKarchived
Model routingBenchmarks and evals

litjev

Turns any off-the-shelf LLM into a Jev-style decision layer.

★ 47PythonLibrary or SDK
Playgrounds and demosSDK or client library

open-jev

Typed JSON inference with DiffusionGemma, benchmarked against Jev.

★ 43PythonLibrary or SDK
Output verificationBenchmarks and evals

kev

LoRA adapter and readout head on Qwen2.5-0.5B that answers many typed questions in one prefill; trains in under two hours on a MacBook, held-out ECE 0.065, speaks the TypeSafe wire format.

★ 9,815PythonProxy or service
SDK or client libraryOpen-model replicas

simple-jev

Reads next-token logits from any Hugging Face model for choice, rubric, and support questions; public demo API with no key.

★ 642PythonProxy or service
Playgrounds and demosClassification and extraction

OpenJev by razorback16

Jev-compatible decision server on DiffusionGemma 26B through vLLM, images included, hosted free on [Codiv](https://codiv.ai).

★ 774PythonProxy or service
Open-model replicasSDK or client library

openjev by daseinlabs

Prefills once and scores every option in one padded pass on Gemma 3 4B with MLX; plays Doom from the terminal in the demo.

★ 135PythonLibrary or SDK
Playgrounds and demosBenchmarks and evals

jeff by logan-markewich

Self-hosted System One API on the 400M GLiFormer, with benchmarks that say where it trails Jev.

★ 313PythonProxy or service
SDK or client libraryOpen-model replicas

JevForge

End-to-end stack for auditable data construction, Qwen3.5-0.8B training, fixed Mind2Web and OOD evaluation, local serving, and a preliminary RLCD baseline.

★ 164PythonLibrary or SDK
Benchmarks and evalsPlaygrounds and demos

PlayJev

Plays ten browser games from the frame alone on a fine-tuned Qwen3.5-0.8B, one forward pass per move, open weights and a browser demo.

★ 63JavaScriptWeb app
Playgrounds and demosBenchmarks and evals

openJev-verdict-2.0

Non-autoregressive 151M decision engine with a WebGPU browser runtime, reporting 77.1 percent top-1 and 1.44 percent calibration error on its own benchmark.

★ 305PythonLibrary or SDK
Output verificationBenchmarks and evals

LLM2Jev

Adapts local language models to runtime-defined Choice, Score, and Noul questions and returns typed answers with probabilities.

★ 481PythonLibrary or SDK
Classification and extractionSDK or client library

local-jev

Offline server wire-compatible with the System One endpoint, checked against the official SDK; reports 80.5 percent on JevBench's public items against 86.6 percent published for the hosted API.

★ 24PythonProxy or service
Open-model replicasModeration and safety

Jev-Compatible

Gateway that turns an existing SGLang or vLLM deployment into a Jev-compatible decision service by scoring candidate tokens, with no training and no model changes.

★ 6PythonProxy or service
SDK or client libraryClassification and extraction

Rizzo Flow

Local-first take on the System One idea: unstructured state in, typed probabilistic decisions out, without generating a token.

★ 956PythonProxy or service
Open-model replicasSDK or client library

metask-jev

Open-weight typed-decision models on Qwen3.5 with calibrated per-option probabilities in one forward pass; reports 80.1 percent on JevBench against 75.3 for Jev 1.13.

★ 1PythonLibrary or SDK
Benchmarks and evalsClassification and extraction

AnyJev

Turns an open Hugging Face model into a calibrated decision endpoint served through vLLM, with no fine-tuning at the first two levels.

★ 1,584PythonLibrary or SDK
Classification and extractionBenchmarks and evals

ollaya

Pulls and serves open decision models such as Laya, kev, and JevK5 behind a TypeSafe-compatible local endpoint, the way Ollama serves LLMs.

★ 1,437RustProxy or service
Tool gating and guardrailsSDK or client library

AgentJev

Decision model on Qwen3-0.6B that answers without decoding tokens, reports 79.25 percent top-1 on the public Typed Decisions benchmark.

★ 398PythonLibrary or SDK
SDK or client libraryTool gating and guardrails

Valen

Multimodal decision model on Qwen3.5 that scores candidates against images and video as well as text, with training code and open weights.

★ 901PythonLibrary or SDK
Open-model replicasSDK or client library

tev1

Data recipe and training code that fine-tune Qwen3.5-4B into an open-weight decision model on Together AI.

★ 262PythonDataset or benchmark
Model routingClassification and extraction

JevK5

Qwen3.5 replica with distilled LoRA weights, ranked second of 76 systems and first among open ones on JevBench v1.4.

★ 160PythonProxy or service
Open-model replicasBenchmarks and evals

djev

Serves `/v1/systemone` on DiffusionGemma by reading typed answers and text spans off a seeded, pinned canvas, with no generation.

★ 116PythonProxy or service
Playgrounds and demosBenchmarks and evals

OneJev

Open multimodal System One model, 0.8B to 27B, for screenshots, photos, video and text.

★ 225PythonLibrary or SDK
Open-model replicasPlaygrounds and demos

WaterSheep

Open-weight ModernBERT-base fine-tune that answers Noul, Choice, Score, and multi-label questions with a probability per option, serves `/v1/systemone` for the official Python SDK, and runs in the browser through ONNX; independent replica, not TypeSafe weights.

★ 14PythonProxy or service
Open-model replicasSDK or client library

software-factory

Runs several coding agents locally with Jev as judge and orchestrator.

★ 11PythonCLI
Output verificationPlaygrounds and demos

jev-review by devagrawal09

Staged code-review workflow with a local dashboard.

★ 696TypeScriptCLI
Code reviewPlaygrounds and demos

jev-review by NiazMorshed2007

Local-first MCP plugin for continuous quality review by coding agents.

★ 248TypeScriptMCP server
MCP and agent integrationOutput verification

foreman

Supervises a software factory of agents, with Jev making the go and no-go calls.

★ 808PythonLibrary or SDK
Output verificationTool gating and guardrails

supercov

Code quality and coverage signals for coding agents.

★ 159RustCLI
Output verificationCode review

diffjury

PR risk router and review coach.

★ 8TypeScriptWeb app
Code reviewPlaygrounds and demos

clean-code-review

Every file in a PR judged against Clean Code rules, then reviewed by an LLM.

★ 11TypeScriptWeb app
Code reviewPlaygrounds and demos

JevLint

Configurable semantic linting with file-level Noul judgments.

★ 14TypeScriptCLI
Output verificationCode review

commit-miner

Classifies commit diffs and messages: bug fixes, security fixes with CWEs, change types.

★ 38RustCLI
Classification and extractionCommand line tooling

jev-review-action

GitHub Action for submission review and PR classification with Jev, no text-generation model in the loop.

★ 3JavaScriptHook or plugin
Code reviewPlaygrounds and demos

jev-triage

Pulls large repositories and triages their issues with typed Jev questions.

★ 4TypeScriptWeb app
Code reviewOutput verification

perch

Semantic linting: rules in plain language, each file judged by Jev, run locally or in CI.

★ 360JavaScriptCLI
Code reviewOutput verification

jeff by Alurith

Read-only Go CLI that checks files against coded rules such as hidden side effects and weak error handling.

★ 38GoCLI
Code reviewPlaygrounds and demos

jev-pref

Turns the preferences in your AGENTS.md into a linter that runs on code changes and reports back to the agent.

★ 13JavaScriptCLI
Code reviewOutput verification

jev-commit

Pre-commit hook: one Jev call judges whether the commit message matches the staged diff, plus debug leftovers, unmentioned work, and a credential belt; warns except on a secret, which it blocks.

★ 17PythonHook or plugin
Output verificationPlaygrounds and demos

slop-grader

Grades text and markdown files for AI slop, grammar, and technical documentation quality, and guides an AI agent to auto-fix violations.

★ 37TypeScriptCLI
Output verificationPlaygrounds and demos

JevPR

GitHub App that asks Jev whether a pull request is safe to approve or needs a specialist, then maps the verdict to a check run.

★ 10PythonHook or plugin
Code reviewPlaygrounds and demos

jevopt

C/C++ compiler driver that asks Jev whether to inline each discretionary call site, from the LLVM IR and the original source.

★ 6PythonCLI
Playgrounds and demosBenchmarks and evals

jev-spec

Checks the code against the requirements in a Markdown spec on every commit and fails the build when the two drift apart.

★ 12TypeScriptCLI
Code reviewPlaygrounds and demos

pytest-jev

Pytest plugin that asks Jev whether plain-English claims about a test's text hold, all in one request, and fails the test with each claim's probability unless Jev is at least 80 percent sure.

★ 8PythonHook or plugin
Output verificationPlaygrounds and demos

jgrep by kyu1204

`--diff` gates a PR in CI on a rule written in English, `--tests` lists the test files a diff can affect, and plain `jgrep` greps code by what it does; one Noul per chunk, 16 chunks per request.

★ 62TypeScriptCLI
Code reviewPlaygrounds and demos

tiershift

Shifts every LLM call to the cheapest model that can handle it, policy in YAML, decision in about 180 ms.

★ 3TypeScriptProxy or service
Model routingSDK or client library

jev-router by prismhq

LLM router on top of LiteLLM.

★ 15PythonProxy or service
Model routingSDK or client library

agent-router

Picks Cursor, Claude Code, Codex, or OpenCode plus model and effort for a task, then launches it.

★ 122TypeScriptCLI
Model routingCommand line tooling

Janus

Measures on your data when Jev beats other models, then routes accordingly.

★ 2PythonCLI
Benchmarks and evalsModel routing

hono-jev-router

Route HTTP requests by meaning in Hono.

★ 52TypeScriptLibrary or SDK
Playgrounds and demos

JevRouter

Models, subagents, skills, MCP tools, and CLIs as one candidate set; Jev picks, the router enforces permissions and risk; reports 44 percent first-five tool-call hits against 24 for DeepSeek on Toolathlon.

★ 466TypeScriptLibrary or SDK
Tool gating and guardrailsModel routing

jev-gateway

Local gateway for Codex and Claude Code that sends the "which tool next" decision to Jev and everything else to your usual model.

★ 325TypeScriptProxy or service
Playgrounds and demosTool gating and guardrails

jev-router by daviddl9

Jev picks the worker tier for each step in OMP and Pi, keeping planning and review on a strong model and bounded work on cheaper ones.

★ 0TypeScriptHook or plugin
Model routingOutput verification

Jevonian

Local OpenAI, Anthropic, and Responses-compatible proxy that serves one Jev call per turn to answer both the model route and the thinking level for its virtual model jevonian/auto, with code filtering candidates by protocol, context window, effort floor, and spent quota windows first, and pinned models or explicit routes skipping Jev entirely.

★ 28GoProxy or service
Model routingSDK or client library

neurolink

TypeScript AI SDK where decide, via Jev, is a peer of generate and stream: one typed-judgment call routes model choice, prunes context, and picks MCP tools.

★ 157TypeScriptLibrary or SDK
Model routingOutput verification

jev-search

Source selection, query understanding, and relevance ranking for web search.

★ 553TypeScriptWeb app
Search rerankingPlaygrounds and demos

blink

Codebase search where Jev scores the candidates.

★ 101TypeScriptCLI
Playgrounds and demosCommand line tooling

reranker

Jev as a calibrated reranker: one call, up to 30 documents, a probability per document.

★ 19PythonLibrary or SDK
Search rerankingSDK or client library

llama-index-jev

LlamaIndex reranker and router, cheaper than an LLM judge.

★ 8PythonLibrary or SDK
Search rerankingModel routing

jev-tree

Recursive choice over a taxonomy, past the 255-option cap.

★ 10TypeScriptLibrary or SDK
SDK or client libraryLearning resources

jev-folio-recursive-classifier

Classifies OCR'd legal agreements through the FOLIO Document Types ontology with recursive Jev Choices, beam search, confidence-gated leaf stopping, and context-length benchmarking.

★ 2PythonCLI
Classification and extractionBenchmarks and evals

neo4jev

Walks a Neo4j graph by classifying neighbouring relationships.

★ 183Jupyter NotebookOther
Playgrounds and demos

jev-sift

MCP tool that scores a batch of files, URLs, or snippets for relevance so the agent opens only what matters.

★ 50JavaScriptMCP server
Search rerankingMCP and agent integration

jev-scout

Rust CLI and MCP server that finds real, maintained repos and crates for a plain-language request, with Jev scoring the candidates.

CLI
Command line toolingMCP and agent integration

jev-semgrep

Greps by meaning instead of by regex: every line gets a probability from Jev, and meanings combine with AND, OR, and NOT.

★ 150JavaScriptCLI
Playgrounds and demosCode review

jev-search by kylemclaren

A shadcn/ui registry block: keyword hits on the first keystroke, re-ranked by Jev a moment later, and keyword order stands if the call fails.

★ 10TypeScriptHook or plugin
Search rerankingPlaygrounds and demos

Senseek

Browser extension that searches the page you are reading by meaning, in a Ctrl+F style box, with your own key and no backend.

★ 0JavaScriptBrowser extension
Playgrounds and demos

Milvus Search with Jev

Nine runnable notebooks combining Gemini embeddings and Milvus retrieval with Jev decisions for reranking, filtering, search stopping, routing, cache reuse, curation, guardrails, and evaluation.

Other
Search rerankingPlaygrounds and demos

JevPDF

Searches a PDF by meaning in the browser: pdf.js extracts the lines locally, Jev answers one Noul per line in batches of 16, and matching lines light up page by page, ranked by probability.

★ 9TypeScriptWeb app
Search rerankingPlaygrounds and demos

Jev RAG

Searches local documents with BM25 or hybrid retrieval, reranks candidate passages with batched Jev Noul judgments, and measures seven retrieval pipelines on BEIR NFCorpus.

★ 17PythonCLI
Search rerankingPlaygrounds and demos

pg-jev

PostgreSQL extension that answers plain-language questions about your tables.

★ 1,256ShellHook or plugin
Data pipelines and SQLPlaygrounds and demos

vgi-typesafe

DuckDB worker that exposes choice, noul, and score as lateral-joinable table functions in SQL.

★ 5PythonHook or plugin
Data pipelines and SQLClassification and extraction

jevsql

SQL with natural-language predicates over SQLite: filter, rank, and classify rows by meaning, batched and cost-guarded.

★ 5JavaScriptLibrary or SDK
Output verificationSearch reranking

sqlite-jev

Adds Jev Noul, Choice, and Score judgments to SQLite through a loadable C extension and Python wrapper, with scalar functions and batched virtual-table queries.

★ 4CHook or plugin
Data pipelines and SQLClassification and extraction

jevlogs

Scores OpenTelemetry log signal before paying for LLM analysis.

★ 20JavaScriptLibrary or SDK
SDK or client libraryModel routing

jev-curate

Sifts Parquet and JSONL training data at more than 1,500 rows a second.

CLI
Output verificationSDK or client library

HA-Jev

Home Assistant integration: ask a question about your house, get a probability, choice, or score as an entity.

★ 84PythonHook or plugin
Playgrounds and demosVoice and realtime

typesafe-migration-guard

Reviews database migrations for safety before they run.

★ 2TypeScriptProxy or service
Output verification

jev-for-engineers

Eight small examples from mechanical and electrical engineering: CAD routing, FEM triage, DFM screening, BOM alignment.

★ 7PythonOther
Classification and extractionPlaygrounds and demos

jlink

Links records across two datasets from a match rule written in plain English, from Python, the shell, Stata, or R, and reports F1 0.73 against 0.69 for tuned string matching on NBER patent assignees to Compustat.

★ 8PythonLibrary or SDK
Output verificationCommand line tooling

pg_typesafe

Pre-alpha PostgreSQL extension for categorical classification with Jev.

★ 84CHook or plugin
Playgrounds and demosData pipelines and SQL

jev-mode

Ticket triage and file tagging on a typed-judgment model; reports 78 percent fewer tokens and 96.1 percent accuracy against a 93.7 percent baseline.

★ 4PythonCLI
Context compactionClassification and extraction

jev-reviewer

Asks a clinical trial report for systematic-review data by voice, text, or a questions file; every answer is a verbatim quote with its file and place.

Browser extension
Classification and extractionOutput verification

tax-doc-classifier

One request per page picks among 261 IRS forms and seven page kinds; reports 100 percent on its corpus at $0.001 a page, 34 times cheaper than the LLM pipeline it replaced.

★ 516TypeScriptLibrary or SDK
Playgrounds and demosClassification and extraction

jevql

Semantic SQL for PostgreSQL, with Jev answering the predicates.

★ 14GoCLI
Playgrounds and demosMCP and agent integration

duckdb-jev

DuckDB extension that asks a question of every row and returns a real SQL type.

★ 33C++Hook or plugin
Data pipelines and SQLClassification and extraction

invalidate

Gives every stored agent memory a lease and asks Jev whether new evidence ends it; [live demo](https://invalidate-playground.vercel.app).

★ 23PythonWeb app
Playgrounds and demosOutput verification

jevgraph

Parses PDF, DOCX, PPTX, or text locally, then asks Jev one closed-set relation question per candidate entity pair and exports a graph with per-edge probabilities and page evidence to JSON, CSV, or Neo4j.

★ 47PythonCLI
Output verificationClassification and extraction

jev-ultralightspeed

Packs 32 items into one request for bulk classification and calibrates the confidence cut that sends the least-sure rows to a person, reporting 533 items a second at 89.2 percent agreement with human labels.

★ 12PythonLibrary or SDK
Classification and extractionBenchmarks and evals

jev-seo by AgriciDaniel

Crawls a site, checks it against 52 SEO rules, has Jev judge every page, and writes PDF, spreadsheet, and Markdown reports.

★ 755PythonCLI
Command line toolingPlaygrounds and demos

JevSpan

Zero-shot named entity recognition for Chinese and English: code proposes candidate spans at punctuation and Jev choice questions nominate, verify, and fix the boundary of each entity; reports 73.7 average strict F1 on 12 NER benchmarks against 72.1 for Qwen3.8-27B.

★ 12PythonLibrary or SDK
Classification and extractionOutput verification

jev-shield

Semantic MCP firewall that screens every tool call, result, and description; reports 94 percent block recall at about $0.00002 a check.

★ 3JavaScriptProxy or service
Tool gating and guardrailsModeration and safety

jev-guard

Auto mode for Claude Code, Codex, Cursor, Gemini CLI, Pi, and OpenCode: risk-scores each tool call as deny, ask, or allow and flags prompt injection in results.

★ 144JavaScriptHook or plugin
Tool gating and guardrailsModeration and safety

Jev-Moderation-Bot

Chat moderation with editable rules.

★ 50PythonOther
Moderation and safetyClassification and extraction

citation-verifier

Does the cited paper support the sentence citing it? Claude finds the quote, Jev scores it, a human decides.

★ 12JavaScriptWeb app
Output verificationPlaygrounds and demos

human-compiler

Paste text, get diagnostics, like a compiler for prose.

★ 1TypeScriptWeb app
Playgrounds and demosModeration and safety

snifftest

Prose linter for AI writing tells: countable rules plus one judgment model.

★ 36TypeScriptHook or plugin
Output verification

riff

Ruff-style rule codes for writing.

★ 7PythonCLI
Playgrounds and demos

jev-secret-detection

Measures how well Jev spots real credentials in file snippets, with the hard config-shaped cases scored separately.

★ 2PythonDataset or benchmark
Benchmarks and evalsOutput verification

jev-audio-beeper

Low-latency audio censorship proof of concept: Jev typed decisions drive ffmpeg.

★ 2TypeScriptCLI
Playgrounds and demosModeration and safety

is-malicious

Scans a codebase for hidden or data-stealing behavior before you run it; a clean report is not proof, and it says so.

★ 39TypeScriptCLI
Command line toolingCode review

tripwire

AI SDK middleware and proxy that runs seven Jev checks on every LLM response before the user sees it; no accuracy numbers yet, and it says so.

★ 3TypeScriptProxy or service
Output verificationModeration and safety

SkillCheck

Sends an agent skill's text to Jev before installation and returns a verdict with category scores, without loading the skill into the agent's context; the submitted text is not redacted for secrets.

★ 0JavaScriptCLI
Moderation and safetyOutput verification

StopSpam

Telegram bot that removes spam and scam messages from group chats on calibrated-confidence classification.

★ 0JavaScriptOther
Moderation and safety

Fake / Real

Checks claims against cited excerpts with Jev in an English and Romanian fact-checking site, with a public integration example and a closed-source full application.

★ 1JavaScriptWeb app
Playgrounds and demosModeration and safety

unclutter

Browser extension that removes page clutter with reusable template rules.

★ 389TypeScriptBrowser extension
Playgrounds and demos

typesafe-adblock

Chrome extension that asks "is this element an ad?" per DOM node; a toy, and it says so.

★ 94JavaScriptBrowser extension
Playgrounds and demos

vibecheck

Vibe-check your X post before you hit publish.

★ 50JavaScriptBrowser extension
Playgrounds and demosOutput verification

xtags

Labels every post in your X timeline with what it wants you to do.

★ 11HTMLBrowser extension
Playgrounds and demos

jevibe-check

Live tone labels for Bluesky posts and drafts.

★ 2JavaScriptBrowser extension
Playgrounds and demosModeration and safety

jevmeter

Puts a live meter on any video: every sentence scored on five questions, rendered as a 16:9 edit, a whole debate for about two cents.

★ 112PythonCLI
Playgrounds and demosLearning resources

killmyidea

Describe your startup idea; Jev says kill it, fix it, or ship it.

★ 275TypeScriptWeb app
Playgrounds and demosMCP and agent integration

notra

Turns work into content, with Jev deciding what is worth posting.

Web app
Output verification

slidepilot

Voice-driven auto-advance for Slidev on Cloudflare Agents.

★ 8TypeScriptHook or plugin
Voice and realtimePlaygrounds and demos

should-ai-kill-us-all

Asks Jev the question every ten minutes, using the actual headlines.

★ 3JavaScriptWeb app
Playgrounds and demos

Privacy Facts

Turns privacy policies into nutrition-style labels with plain-language answers, Jev confidence scores, and suggested source clauses.

★ 2JavaScriptWeb app
Playgrounds and demosClassification and extraction

jev-voice-control

Menu-bar Swift app turning spoken commands into Jev typed decisions and macOS actions.

★ 7SwiftOther
Browser and computer usePlaygrounds and demos

jev-got

Game of Thrones roleplay where a story model writes each scene and Jev answers five typed questions that drive the header, soundtrack, art, and next prompt.

★ 2TypeScriptWeb app
Playgrounds and demosOutput verification

typesafe-jev

Jev experiments starting with a local CV-screening workbench, each with its own measured results.

★ 10TypeScriptCLI
Playgrounds and demosOutput verification

super-jev

Small harness connecting evidence, Jev judgments, permitted actions, and verified outcomes.

★ 14PythonLibrary or SDK
Tool gating and guardrailsOutput verification

safer-with-jev

Neon Function proxy for the Neon AI Gateway with Jev routing in front.

★ 6TypeScriptProxy or service
Moderation and safetyPlaygrounds and demos

Sponsor Skip

Chrome extension that finds sponsor reads from the transcript or live audio and jumps past them; code owns every timestamp, under a cent an hour in transcript mode.

★ 116JavaScriptBrowser extension
Playgrounds and demosVoice and realtime

jev-seo by AkashPriyadarshii

Rust CLI and MCP server for SEO and GEO checks over DuckDuckGo results, scored by Jev.

CLI
MCP and agent integrationPlaygrounds and demos

jev.nvim

Neovim plugin: ask the buffer a plain-language question, Treesitter splits it into functions, Jev scores each one, and the answers land in quickfix ranked by probability.

★ 8LuaHook or plugin
Playgrounds and demosCode review

jev-skip

Browser extension that reads the caption track and paints a per-segment sponsor probability on the seek bar before the intro ends, no crowd database; reports 77 percent of SponsorBlock's sponsor seconds caught over 23 videos at $0.0008 a video.

★ 9TypeScriptBrowser extension
Playgrounds and demos

openpoke-meets-jev

OpenPoke fork that moves email screening, a tool-call guardrail, and search reranking onto Jev, with an A/B against the Sonnet call it replaced and an adversarial run on the injection gate.

★ 1PythonHook or plugin
Tool gating and guardrailsSearch reranking

Jevmail

Read-only Gmail triage: three Jev questions per message sort it into one of five trays with an urgency score.

★ 105TypeScriptWeb app
Classification and extractionPlaygrounds and demos

jev-mail-classifier

Config-driven inbox classification that tags, moves, flags, and notifies, through TypeSafe directly or OpenRouter.

★ 23PythonCLI
Playgrounds and demosClassification and extraction

crush-monitor

Reads a chat log locally and labels every message with the three likeliest of twelve emotions and thirty-five intents.

★ 334TypeScriptWeb app
Classification and extractionPlaygrounds and demos

Jev Voice

Talk to macOS: local whisper.cpp transcribes, one fan-out Jev call picks the action and its typed arguments, and code runs it.

★ 132PythonCLI
Browser and computer usePlaygrounds and demos

dasheng

Read English aloud and see it scored: streaming ASR listens, Jev judges word by word, and the total is arithmetic in code.

★ 144JavaScriptWeb app
Output verificationModel routing

Jev Chat

Chat-shaped command bar where Jev picks the tool, the arguments, and the reply shape, and code builds the answer from the tools' own data, so no model writes the text.

★ 122TypeScriptWeb app
Playgrounds and demosMCP and agent integration

jev-riffs

Mines repeating motifs from a MIDI melody, scores every candidate in one batched Jev call, and highlights and plays the winner on a piano roll; on an orchestral Swan Lake the top motif is the swan theme.

★ 4TypeScriptWeb app
Playgrounds and demosSDK or client library

shapeshift

Turns one text box into the matching card as you type, judged by a single parallel Jev call, with a keyword fallback when no key is set.

★ 1,055TypeScriptWeb app
Classification and extractionPlaygrounds and demos

typesafe-mario

Plays Super Mario Bros. from structured emulator state; Jev picks the NES controller input directly.

★ 457PythonCLI
Benchmarks and evalsPlaygrounds and demos

jev-drone

Camera-only drone in MuJoCo with Jev in the loop at 2.5 Hz.

★ 300PythonOther
Games and simulationPlaygrounds and demos

tsai-sc

Plays the original StarCraft shareware through keyboard and mouse, action probabilities recorded.

★ 28PythonCLI
Benchmarks and evalsOutput verification

tsai-civ2

Civilization II in a browser, full-game harness, live action probabilities.

★ 2PythonWeb app
Playgrounds and demosBenchmarks and evals

heist-one

Stealth game where Jev makes the guards' judgments and deterministic code owns the world.

★ 9TypeScriptWeb app
Playgrounds and demosLearning resources

typesafe-snake

One Choice per tick; legal moves and facts generated in code.

★ 24TypeScriptWeb app
Playgrounds and demosGames and simulation

jev-doom-agent

Browser-native Doom agent with structured spatial state and live decision telemetry.

★ 35TypeScriptWeb app
Benchmarks and evalsPlaygrounds and demos

OneVOneJev

1v1 quickscope arena in Three.js.

★ 44TypeScriptWeb app
Playgrounds and demosGames and simulation

JevPlaysPokemon

Generation 3 Pokémon through Showdown and a real FireRed ROM.

★ 11HTMLWeb app
Playgrounds and demosBenchmarks and evals

jev-askable-arm

Zero-shot English goals on a simulated Franka arm; Jev chains hardcoded primitives.

★ 14PythonLibrary or SDK
Playgrounds and demosGames and simulation

quackd

Command line for LLM-piloted robots across seven bodies, with an optional Jev stepper that picks among calls without ever writing a joint angle.

★ 289PythonCLI
Tool gating and guardrailsPlaygrounds and demos

snake-jev

Snake controlled by parallel Jev assessments, one API call per tick.

★ 2PythonCLI
Playgrounds and demosBenchmarks and evals

JevPilot

Three.js driving simulator where Jev picks steering and speed from sampled paths up to four times a second; [drive it](https://jevpilot.standardagents.ai).

★ 233JavaScriptWeb app
Playgrounds and demosGames and simulation

live-jev

Top-down car in the browser sending four typed questions every 200 ms, with confidence-gated overrides in code.

★ 21JavaScriptWeb app
Playgrounds and demosGames and simulation

jev-plays-pokemon-red

Pokemon Red on PyBoy: code owns the route and the arithmetic, Jev picks only at branches, and every battle turn logs a faint prediction scored by Brier against what the RAM says.

★ 9PythonCLI
Benchmarks and evalsOutput verification

clashroyale-jev

Plays Clash Royale with Jev choosing cards and placements from Qwen battlefield vision and local OpenCV hand and elixir recognition.

★ 5PythonCLI
Playgrounds and demosMobile automation

Astra and JEV Minecraft agent

Kills the dragon on a vanilla server with a frontier model planning and Jev selecting every player action; the logged run took 131 Jev decisions and 35 planner calls.

★ 602JavaScriptCLI
Benchmarks and evalsOutput verification

EmbodiedJev

Browser workbench for embodied experiments in MuJoCo where every robot step is a visible Jev decision, backed by a local model or a cloud API.

★ 332PythonWeb app
Playgrounds and demosBenchmarks and evals

jev-connect4

Connect Four with nine swappable query strategies for the same model, every answer graded against engine ground truth in a live inspector, and a match runner that plays 100 games a minute: representation changes alone moved the win rate 52 points.

★ 1TypeScriptWeb app
Output verificationPlaygrounds and demos

jev-trader

One trade decision every Monad block, on Kuru MON-USDC, about 300 ms each.

★ 3,120TypeScriptProxy or service
Playgrounds and demosFinance and trading

trade-jev

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

★ 13PythonCLI
Benchmarks and evalsFinance and trading

Jev-Trades

Crypto trading bot with backtesting.

★ 59PythonWeb app
Playgrounds and demosFinance and trading

jev-trade

Live Jev trader on Hyperliquid.

★ 225TypeScriptCLI
Playgrounds and demosFinance and trading

beebots

Runs three Jev-driven trading bots against OKX perpetuals with a live dashboard, paper trading by default and real money behind explicit flags.

★ 335TypeScriptWeb app
Playgrounds and demos

jev-benchmarks

Probability-aware evaluation for typed decision models: calibration, selective risk, latency, reproducible.

★ 27PythonDataset or benchmark
Benchmarks and evalsOutput verification

jevcal

Stop guessing thresholds: calibrate, threshold, and drift-check against an LLM teacher.

★ 10PythonCLI
Benchmarks and evalsOutput verification

jev-harness

Confidence gates, shadow mode, recipes, and evals; reports Claude CLI at 48.9 s against Jev at 1.3 s on the same row-filter job.

★ 15TypeScriptLibrary or SDK
Output verificationBenchmarks and evals

jev-rerank-bench

Jev against Cohere Rerank, ZeroEntropy, and a chat baseline on 14 datasets, raw responses included.

★ 11PythonDataset or benchmark
Benchmarks and evalsOutput verification

jev-search-rerank-eval

Does a Jev rerank beat embedding search? 9,831 graded pairs, with the judge-circularity bias measured.

★ 11PythonDataset or benchmark
Benchmarks and evalsSearch reranking

jev-sec-bench

Blind benchmarks for prompt injection and vulnerable-code detection.

★ 3GoDataset or benchmark
Benchmarks and evalsOutput verification

jev-phishing-bench

Jev against Claude Haiku on 2,000 phishing emails: accuracy, calibration, latency, cost.

★ 10PythonDataset or benchmark
Benchmarks and evalsOutput verification

jev-spam-eval

Zero-shot spam filtering with Noul questions against TF-IDF baselines.

★ 3Jupyter NotebookDataset or benchmark
Benchmarks and evalsPlaygrounds and demos

jev-agent-failure-benchmark

Jev against a strong LLM on the Who and When agent-failure-attribution benchmark.

★ 4PythonDataset or benchmark
Benchmarks and evalsOutput verification

jev-korean-benchmark

Korean understanding and medical text, with runtime and cost evidence.

★ 6PythonDataset or benchmark
Benchmarks and evalsOutput verification

jev-behavior-study

Controlled prompt experiments on jev-1.13.0, raw results and offline verification.

★ 3PythonDataset or benchmark
Playgrounds and demosBenchmarks and evals

jev-report

Independent Chinese research report: 52 pages, 50 reproducible tests, 143 traceable data rows.

★ 1PythonDataset or benchmark
Benchmarks and evalsOutput verification

jev-benchmark

Two benchmarks, chess and predator identification, one inside Jev's lane and one outside, both with results.

★ 8PythonDataset or benchmark
Benchmarks and evalsPlaygrounds and demos

jev-dspy-lab

Reproducible calibration and selective-risk benchmarks for Jev decisions in DSPy.

★ 16PythonDataset or benchmark
Benchmarks and evalsOutput verification

jev-eval-agent

Personal-assistant agent with 100 mocked tools, measuring how many steps a Jev-gated agent needs.

★ 109HTMLDataset or benchmark
Benchmarks and evalsTool gating and guardrails

jev-synergy-screening

Choice and Noul questions scored against ASReview SYNERGY gold labels for abstract screening.

★ 2PythonDataset or benchmark
Benchmarks and evalsOutput verification

jev-orderby-bench

Measures whether ORDER BY over a Jev probability is defensible: pairwise inversion, Score ordinality against a human grade, calibration, and wording invariants under a pre-registered gate; passes on 20 Newsgroups topics, fails four of six conditions on Amazon ESCI product relevance, and shows that a 40-row batched state through a DuckDB extension fails the ranking gate one row per request passes.

★ 0PythonDataset or benchmark
Benchmarks and evalsOutput verification

cultivar

Pinecone's skill-testing CLI, with a Jev grading backend it reports at about 30 times cheaper than the LLM grader.

★ 42PythonCLI
Benchmarks and evalsOutput verification

jev-eval by 4esv

Jev against GPT-5.6 Terra on three labeled tasks: equal on the easy ones, 6.7 points lower on 77-way routing, 5 times faster, 41 to 50 times cheaper.

★ 1PythonDataset or benchmark
Benchmarks and evalsOutput verification

jev-benchmark by themsquared

Tool-call risk classification with the run-to-run variance reported; every wrong answer came with hedged confidence.

★ 1PythonDataset or benchmark
Benchmarks and evalsOutput verification

jev-research-eval

Reproducible harness over a pinned jev-ultrafast commit, with baseline and stress suites.

★ 3HTMLDataset or benchmark
Benchmarks and evalsOutput verification

jev-playground by hegargarcia

Jev against other models in games with explicit states, legal actions, and a measurable outcome.

★ 2TypeScriptDataset or benchmark
Benchmarks and evalsOutput verification

JevArena

Hosted arena that puts Jev against an opponent judge you connect and takes your vote before revealing which was which, with latency, cost provenance, and self-reported confidence; a vote records preference, not verified correctness.

★ 5TypeScriptWeb app
Benchmarks and evalsPlaygrounds and demos

JevBench

Benchmark for Jev-class decision models: bounded rubric in, typed answer with a probability per option out, with cascade and committee experiments reported separately.

★ 330PythonDataset or benchmark
Benchmarks and evalsOutput verification

jev-align

Finds the examples a Jev function is least sure about, asks you to label them, and improves the function with GEPA.

★ 315PythonCLI
Benchmarks and evalsClassification and extraction

jev-fanout-bench

Measures what a Jev request is billed and how its answers hold up under batching, translation, and rewording, from 3,455 billed requests with public raw logs.

★ 0PythonDataset or benchmark
Benchmarks and evalsOutput verification

jevals

Runs a trace's agent, quality, and security evals as one batch of typed Jev questions instead of separate LLM-judge calls.

★ 111PythonLibrary or SDK
Output verificationBenchmarks and evals

typesafe-playground by TypeSafeAI

110 use cases, games, and model challenges with editable prompts and A/B comparisons; a community org, not the vendor, formerly under BunsDev.

★ 27TypeScriptWeb app
Playgrounds and demosClassification and extraction

typesafe-playground by kavehmz

From support routing to a 3D driving simulation with visible sensor inputs.

★ 15JavaScriptWeb app
Playgrounds and demosOutput verification

jev-experiments

Nader Dabit's grab bag of small Jev experiments.

★ 413TypeScriptWeb app
Playgrounds and demosLearning resources

Yes / No

Ask a question, get yes, no, or maybe, with web search when needed; no signup.

Web app
Voice and realtime

Jev Pac-Man

The maze as JSON; Jev picks the turn at every junction.

Web app
Playgrounds and demos

Jev Tetris

Rotation and column chosen from holes, stack height, and bumpiness.

Web app
Games and simulationBenchmarks and evals

Hollow Creek

Village NPCs that judge you each tick instead of chatting.

Other
Games and simulation

Crowdcheck

Test a post against 10,000 synthetic personas before you publish it.

Web app
Output verificationModeration and safety

Magic-8-Jev

Ask a question, one choice over twenty answers picks the reply and shows the click-to-answer latency; [live demo](https://willprout.github.io/magic-8-ball/).

★ 1TypeScriptWeb app
Playgrounds and demos

jev-playground by wustep

Can a System One model steer a music composition through typed classify, score, and pick decisions alone.

★ 2TypeScriptWeb app
Playgrounds and demosBenchmarks and evals

typesafe-jev-workflow

LangGraph demo that sends a mocked email to Jev and routes on the typed Choice it returns.

★ 11PythonCLI
Playgrounds and demosOutput verification

jev-little-airways

Show-and-tell capability study for Jev.

★ 6HTMLWeb app
Playgrounds and demosLearning resources

jev-demos

Demos built to test what Jev is good at.

★ 0DartOther
Playgrounds and demosBenchmarks and evals

Jev Classifier

Hosted demo filing posts by type, quality, sentiment, and tone.

Web app
Playgrounds and demosClassification and extraction

Jev Guard demo

Hosted comment-moderation playground.

Web app
Playgrounds and demosModeration and safety

Companion

Hosted robot interface answering nine typed questions per turn to decide act, ask, or shrug, no generated text.

Web app
Playgrounds and demosGames and simulation

Jev System One

Terminal interface where OpenAI answers and Jev separately scores relevance, reliability, and quality.

★ 5PythonCLI
Output verificationPlaygrounds and demos

jev-web-analyzer

Turns a SaaS landing page into Markdown and asks Jev ten bounded Choice questions about what a first-time visitor understands, shown as a founder teardown.

★ 9TypeScriptWeb app
Playgrounds and demosBenchmarks and evals

hn-thread-judge

Reads the most-discussed Hacker News threads comment by comment with Jev and reduces each one to a single verdict, served live from Postgres.

★ 0TypeScriptWeb app
Playgrounds and demosClassification and extraction

1 Million Emojis

Shared 1000 × 1000 emoji canvas where Jev joins each stroke with one Choice over named emoji and square pairs, its pick sampled from the probabilities; [paint on it](https://chriswijnia.com/lab/emoji).

★ 1TypeScriptWeb app
Playgrounds and demos

jev-axi

Shell verbs for agents and humans: pick, rate, check, rank, triage, guard.

★ 47TypeScriptCLI
Tool gating and guardrailsOutput verification

semdecide

Typed semantic decisions for Unix pipelines and CI.

★ 84PythonCLI
Classification and extractionOutput verification

every

Ask a yes/no question of every function in a codebase; grep whose pattern is a question.

★ 9PythonCLI
Playgrounds and demosTool gating and guardrails

typesafe-cli

Noul, choice, and score answers as numbers from the shell.

★ 4TypeScriptCLI
Benchmarks and evalsOutput verification

jev-shell-history

Fish-style zsh history suggestions, ranked by Jev.

★ 119TypeScriptHook or plugin
Playgrounds and demos

jgrep

Prints the lines that fit a plain-English description, streaming from `tail -f` under a spend cap, and reports F1 0.91 on SMS spam against 0.72 for a keyword grep.

★ 140PythonCLI
Moderation and safetyPlaygrounds and demos

jev-cli by jtsang4

Typed questions in, structured JSON answers out.

★ 3TypeScriptCLI
Output verificationPlaygrounds and demos

jev-cli by tumf

Dependency-free Python CLI wrapping Choice, Score, and Noul.

★ 19PythonCLI
MCP and agent integrationCommand line tooling

jevctl

npm CLI with the key in the OS keychain; typed judgments from the shell.

★ 23TypeScriptCLI
Output verificationPlaygrounds and demos

watfile

Sorts PDFs and text files into category folders, one Jev Choice per document, with a local Laya backend as the alternative.

★ 2PythonCLI
Playgrounds and demosClassification and extraction

jeq

Pipes and composes Jev judgments over JSON and NDJSON with map, reduce, rank, and rate, then applies policy through an explicit offline gate.

★ 9GoCLI
Output verificationPlaygrounds and demos

jevgrep by allebee

Filters log lines and other text streams by meaning, one Noul per line in micro-batches, streaming from `tail -f` with grep's flags and exit codes.

★ 2PythonCLI
Playgrounds and demosContext compaction

jevgrep by dzhng

Finds the files, declarations, and verbatim excerpts a coding agent needs by asking Jev which declarations answer a plain-language question about the repo.

★ 3,172TypeScriptCLI
Playgrounds and demosCode review

webctl

Searches the web for an agent and has Jev score and dedupe results and page chunks, so only the relevant text reaches the model.

★ 164GoCLI
Context compactionSearch reranking

jev-go

Go client that returns typed judgments and probabilities.

★ 5GoLibrary or SDK
SDK or client libraryPlaygrounds and demos

Milvus Model

Reranker package whose Jev adapter sends every candidate document as a Noul question in one request, sorts by the returned probabilities, and keeps original indices; shipped in the v0.3.4 release.

★ 62PythonLibrary or SDK
Search rerankingSDK or client library

typesafe-go

Idiomatic Go SDK for the TypeSafe API.

★ 4GoLibrary or SDK
SDK or client libraryClassification and extraction

typesafe-ai

Rust client with async and blocking backends and observable retries.

★ 15RustLibrary or SDK
SDK or client libraryClassification and extraction

typesafe-ai-rs

Independent async and blocking Rust SDK.

★ 7RustLibrary or SDK
SDK or client libraryModel routing

jev

Elixir client built for OTP: reply to Jev from a GenServer and pattern match on the answer.

★ 37ElixirLibrary or SDK
SDK or client libraryPlaygrounds and demos

typesafe-sdk

Ruby client.

★ 7RubyLibrary or SDK
SDK or client libraryClassification and extraction

ruby_llm-typesafe

TypeSafe as a structured-output provider for RubyLLM 2.

★ 19RubyLibrary or SDK
Output verificationSDK or client library

laravel-typesafe-jev

Laravel integration with typed responses, async requests, and testing fakes.

★ 3PHPLibrary or SDK
SDK or client libraryBenchmarks and evals

typesafe-sdk-java

Java client.

★ 12JavaLibrary or SDK
SDK or client libraryPlaygrounds and demos

typesafe-sdk-swift

Swift client.

★ 5SwiftLibrary or SDK
SDK or client libraryMobile automation

TypeSafeAI.Net

.NET SDK.

★ 6C#Library or SDK
SDK or client libraryClassification and extraction

zio-typesafe-ai

Scala client on ZIO.

★ 5ScalaLibrary or SDK
Output verificationTool gating and guardrails

jev-dsl

Haskell DSL with typed packets and inferred answer types.

★ 8HaskellLibrary or SDK
Output verificationSDK or client library

advocaat

Small TypeScript client for asking questions about your own data.

★ 101TypeScriptLibrary or SDK
SDK or client libraryClassification and extraction

jod

Zod-style schemas over Jev: validate the state locally, then project typed answers.

★ 3TypeScriptLibrary or SDK
SDK or client libraryTool gating and guardrails

n8n-nodes-typesafe-ai

n8n community node for yes/no, choice, and score questions.

★ 0TypeScriptHook or plugin
Tool gating and guardrailsPlaygrounds and demos

jevclient

Async Python client, probabilities and choices out, no prose to parse.

★ 2PythonLibrary or SDK
SDK or client libraryPlaygrounds and demos

s1-rs

Turns Rust enums and structs into Choice, Score, and Noul questions with compile-time-checked, confidence-gated answers.

★ 1RustLibrary or SDK
Output verificationTool gating and guardrails

typesafe-rs

Latency-first Rust client, on crates.io.

★ 1RustLibrary or SDK
SDK or client libraryOutput verification

kunobi-jev

Rust client for the System One API.

★ 1RustLibrary or SDK
SDK or client libraryTool gating and guardrails

jev-go by Stumble

Go client for Jev.

★ 6GoLibrary or SDK
SDK or client libraryPlaygrounds and demos

typesafe-ai-rails

Rails integration built on the community Ruby gem.

★ 3RubyLibrary or SDK
Output verificationClassification and extraction

typesafe_sdk by nshkrdotcom

Elixir port of the TypeScript AI SDK with a TypeSafe provider.

★ 5ElixirLibrary or SDK
Classification and extractionSDK or client library

ruby_decision_model

Ruby client for decision models with OpenRouter and TypeSafe providers behind one interface, stdlib only.

★ 58RubyLibrary or SDK
SDK or client libraryOpen-model replicas

zod-jev

Zod 4 schemas with semantic rules: shape checks stay in Zod, meaning checks go to Jev in one request and come back as Zod issues.

★ 8TypeScriptLibrary or SDK
Moderation and safetySDK or client library

typesafeai-dotnet-sdk

Community .NET SDK with typed Noul, Choice, and Score questions.

★ 12C#Library or SDK
SDK or client libraryClassification and extraction

swift-typesafe

Swift 6.4 SDK following the Python SDK's API, on Apple platforms and Linux.

★ 17SwiftLibrary or SDK
SDK or client libraryOutput verification

typesafe-sdk-php

PHP client with sync calls, Guzzle promises, and PSR-3 logging.

★ 2PHPLibrary or SDK
Classification and extractionSDK or client library

jev4k

Kotlin DSL and client.

★ 12KotlinLibrary or SDK
SDK or client libraryPlaygrounds and demos

JevSharp

.NET 10 SDK for Jev decisions through TypeSafe, OpenRouter, Vercel AI Gateway, and compatible endpoints.

★ 0C#Library or SDK
SDK or client libraryPlaygrounds and demos

hunch

Turns Choice, Score, and Noul questions into Python functions over lists and DataFrames, with deduplication, caching, escalation of unsure rows to an LLM held to the same labels, and a TypeScript port on npm as hunch-jev.

★ 7PythonLibrary or SDK
Classification and extractionSDK or client library