OPEN-SOURCE PROJECT DIRECTORY

Jev project radar

Browse community-built Jev projects, see what they solve and where Jev makes a decision, then open the repository and reviewed source links.

Data imported from AgentBuff Awesome Jev snapshot 2026-09-21 Review method

853open projects

23project categories

587Kcombined GitHub stars

295fixed-source reviews

01 / DIRECTORY

Browse Jev projects

Search by project, author, use, or tag, then filter by category or activity. Open project details to see how it uses Jev and review its source links.

Showing 385–408 of 853 Some public source has been reviewed; inclusion is not a performance or safety endorsement

mcts-agent

lhemerly

385

Evaluation & Observability

Discriminative Monte Carlo Tree Search using TypeSafe Jev System One Primitives and Gemini

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

oc-plugins

OpeOginni

386

Security & Guardrails source reviewed

The oc-auto-perms plugin in an OpenCode plugin collection uses Jev to check tool intent against natural-language rules.

JEV · Decision point

Sends proposed actions and permission rules to Jev, then uses local logic to allow, deny, or ask the user.

Connects permission policies to judgments about individual tool actions.

security-guardrailscoding-agents

open-jev-approvals

alexj11324

387

Security & Guardrails MIT

Binary approval gate for Codex and Claude Code — every intercepted tool call is reviewed by TypeSafe JEV and composed through a versioned local policy, with scoped authorization.

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

security-guardrailstyped-decisions

OpenJev: an independent Jev-inspired System One decision API based on TypeSafe.ai concepts. Choice, score and noul primitives, local mock server, Python and TypeScript SDKs. Real inference planned; not affiliated with TypeSafe AI.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

pi-heed

Nyarlathoteppppp

389

Agent Tooling

Runtime constraints for the pi coding agent: checks every side-effecting tool call against what you said, before it runs. Powered by TypeSafe Jev.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

pi-jev (iefnaf)

iefnaf

390

Agent Tooling

Pi extension suite powered by Jev: selective context compaction and model routing

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

PiJ

tonyzdev

391

Codebase & Graph Pathfinding MIT source reviewed

A Pi-based terminal coding Agent whose main model handles reasoning, edits and tools while Jev provides advice.

JEV · Decision point

Jev suggests skills, reranks actual source candidates and triages failures without automatic retries or permission approval.

Preserves paths, line numbers, source and errors; the author’s bounded experiments do not establish universal gains.

coding-agentstyped-decisionsai-agent

smart-switch

reycn

392

Domain & Vertical Tools

Reimagined window switcher for macOS using frontier artificial intelligence. Predicted by TypeSafe's Jev model

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

typesafe-ai-playground

nickthompson480

393

Demos & Playgrounds

Community TypeSafe AI playground: 110 use cases, games, dilemmas and model challenges, with editable prompts, A/B comparisons and a mobile-friendly UI.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

typesafe-ai-rs

gilljon

394

SDK & Decision Frameworks MIT source reviewed

An independently maintained Rust SDK with async and blocking clients, retries and response metadata.

JEV · Decision point

Sends application state and questions to Jev and parses Choice, Score or Noul answers.

Packages requests and response parsing for typed decisions in applications.

multilanguage-sdktyped-decisionsai

typesafe-cli (geilt)

geilt

395

Agent Tooling

CLI and agent skill for TypeSafe System One (Jev): typed Choice, Score, and Noul judgments.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

typesafe-sdk-java

Premo-Cloud

396

SDK & Decision Frameworks MIT source reviewed

A community Java TypeSafe client with a Spring Boot Starter for configuring Jev calls.

JEV · Decision point

Sends Java state and Noul, Choice, and Score questions to System One and parses typed results.

Reuses request, configuration, and error-handling code in Java and Spring Boot projects.

multilanguage-sdktyped-decisionsjava

typesafe-sdk-swift

InsaneArts

397

SDK & Decision Frameworks

Swift SDK for TypeSafe AI

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

zio-typesafe-ai

jamesward

398

SDK & Decision Frameworks Apache-2.0 source reviewed

A Scala 3 / ZIO client that asks typed Noul, Choice, and Score questions in one round-trip and returns a NamedTuple of answers.

JEV · Decision point

Encodes state and typed questions as a System One request and decodes Probability, Choice distributions, and Score values.

Keeps Jev questions and answers as compile-time field names in ZIO, without raw JSON key lookups.

multilanguage-sdktyped-decisions

actiongate-jev

omkarghugarkar007

399

Security & Guardrails Apache-2.0

Open-source Jev tool-calling authorization gateway for AI agents: deterministic policy, exact-action single-use permits, MCP and HTTP enforcement.

JEV · Decision point

Jev returns a structured decision for the local program; consult the source for the exact decision policy.

Adds structured choices or scores to the workflow; performance and cost benefits have not been independently verified.

security-guardrailstyped-decisions

ailerix

tylerjharden

400

Agent Tooling

Type-safe model router. Jev (System One) banks each request to a typed catalog route.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

antivirus

newuser7171

401

Security & Guardrails

A file scanner that sends extracted features to Jev for a verdict, a 0–4 severity score, and Noul indicators, then applies local quarantine or review rules.

JEV · Decision point

Choice clean / suspicious_pua / malicious, Score 0–4, and Noul questions for packing, C2, persistence, and injection; local policy maps the answers.

Turns heuristic file features into thresholded structured answers rather than a prose verdict; this site has not run or validated protection.

security-guardrailsclassification-ranking

btc-jev-signal

WebGrga

402

Domain & Vertical Tools

Experimental multi-horizon BTC signal generator using TypeSafe Jev probabilities and Binance market data.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

citation-verifier

MarissaFamularo

403

Domain & Vertical Tools

Check whether each cited paper supports the sentence citing it. Claude proves the quote, TypeSafe's Jev scores it, a human decides.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

clarity-judge

TypeSafeAI

404

Demos & Playgrounds

Multi-axis writing quality checker powered by TypeSafe AI's Jev model. Separate named checks, each with its own verdict and confidence.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

clear-head

VladyslavHontar

405

Agent Tooling

Claude Code Stop hook that checks an AI assistant's claims against what it actually read this session, using TypeSafe's Jev as the judge

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

construct-auto-classifier

godspede

406

Agent Tooling

Effect-based safety gate for AI coding agents' shell commands (OpenCode, Antigravity): fast structural rules, then TypeSafe's Jev or a chat model judges what a command does. Certified with Jev at zero dangerous commands allowed.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.

doom-jev

AmoghCreator

407

High-Frequency & Simulation source reviewed

A ViZDoom Agent that uses Jev to choose movement, targets and firing from structured game state.

JEV · Decision point

Jev selects tactical goals and actions while local geometry handles fine aiming.

Separates game ticks from network inference so the engine need not wait on every frame.

games-simulationtyped-decisions

gg-friggin-ez

ItisShikhar

408

Games & Simulation

Fast, drop-in profanity and toxicity screener for Node.js, powered by TypeSafe AI Jev. Catches leetspeak, character spacing, and romanized profanity across languages including Kannada, Telugu, Tamil, Hindi, and Bengali. ~50-500ms latency.

BASIC LISTING

This listing includes an overview and project link; a reviewed Jev decision point is not yet available.

Open the project link to review its source material and implementation.