PROJECTS & RESOURCES DIRECTORY

Jev projects and resources

Find a Jev implementation for agent routing, browser actions, coding tools or context compaction. See which decision Jev handles, how it is integrated and whether the source evidence has been reviewed.

Community directory snapshot 2026-09-28 Review method 2026 ecosystem report

1428catalogued records

346source-reviewed entries

74project analysis pages

651Kknown deduplicated stars

The catalog includes 1,334 repository or integration records, 61 article or discussion records and 33 other resources. Repository links resolve to 1,332 unique GitHub repositories; a public link alone does not establish an open-source license.

HOT / 10

Popular Jev projects

Ten widely followed projects spanning browser automation, context compaction, trading, official skills, computer use, review, orchestration, and data.

01 jev-ultrafast ★ 19K 02 fast-jev-compaction ★ 6,653 03 jev-trader ★ 2,240 04 TypeSafe agent skills ★ 2,060 05 agent-desktop ★ 1,604 06 typesafe-computer-use ★ 937 07 Jev Review ★ 586 08 foreman ★ 540 09 hermes-jev-skills ★ 726 10 pg-jev ★ 329

01 / DIRECTORY

Browse Jev projects and resources

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 745–768 of 1428 Some public source has been reviewed; inclusion is not a performance or safety endorsement

read-with-jev

carlaiau

745

Demos & Playgrounds E0 · catalogued

A Demo of using JEV to classify various attributes of a book, and present that to the reader to augment the reading experience

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.

reflex

kaustav1996

746

Security & Guardrails MIT E2 · source reviewed

A coding agent and personal assistant built on the Pi coding agent. Jev checks every tool call, turn and voice transcript, and code decides what happens next: allow, ask or block an action, which model tier to use, and whether a "done" was actually verified.

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-guardrailscoding-agentsllm-routing-cost

rh-guard

24601

747

Evaluation & Observability E0 · catalogued

Reward-hack radar for coding agents: structural denies + TypeSafe Jev System One sidecar for Claude Code & Cursor hooks

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.

rpg-jev

lmvdz

748

Games & Simulation E0 · catalogued

A living-world RPG whose NPCs are decided by TypeSafe's Jev judge model; code owns rules, numbers and state.

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.

RSI-Jev-Slay-the-Spire-2

yzxoi

749

Domain & Vertical Tools E0 · catalogued

https://v.douyin.com/iJtUdfsywHU/

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.

Should AI Kill Us All?

hellogumbo

750

Demos & Playgrounds E0 · catalogued

Live verdict page: feeds Jev the day’s Florida Man, odd-news, politics and world headlines and asks all three primitives whether AI should kill us all, refreshed every ten minutes.

BASIC LISTING

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

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smart-switch

reycn

751

Domain & Vertical Tools E0 · catalogued

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.

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sqlite3-jev

mattn

752

Domain & Vertical Tools MIT E1 · source linked

SQLite C extension enabling TypeSafe Jev judgments as native SQL functions for semantic scoring and choices.

JEV · Decision point

Registers custom functions like jev_choice and jev_score directly inside the SQLite query pipeline.

Enables row-level semantic classification directly inside relational SQL queries without glue code.

domain-workflowstyped-decisions

system-one-chess

dperezcabrera

753

Games & Simulation E0 · catalogued

Chess against Jev, TypeSafe AI's System One model, through OpenRouter. Built with the pico framework.

BASIC LISTING

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

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systemone-lite

fritzprix

754

Domain & Vertical Tools E0 · catalogued

Toy local System One–style decision API (Jev-shaped). Not affiliated with TypeSafe.

BASIC LISTING

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

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SystemOneDotNet

JabbaKadabra

755

SDK & Decision Frameworks E0 · catalogued

.NET client for TypeSafe System One (Jev) — typed questions in, typed answers with probabilities and confidence out. No prompt engineering, no output parsing.

BASIC LISTING

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

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tenbin

simota

756

MCP & Integrations MIT E2 · source reviewed

Documentation, an MCP server and a Skill for designing Jev judgments with question linting, batch evaluation and calibration.

JEV · Decision point

Runs Choice, Score and Noul over samples and uses measured results to design local thresholds.

Connects question design, sample evaluation and runtime rules.

mcp-integrationsevaluation-benchmarkstyped-decisions

tiershift

iamvatsalpatel

757

Routing & Cost Optimization MIT E2 · source reviewed

Policy-driven model routing framework routing every LLM call to the cheapest capable tier in ~180 ms via TypeSafe Jev.

JEV · Decision point

Uses declarative YAML policies evaluated by Jev discrete classification without requiring pre-collected training data.

Provides unified TypeScript and Python interfaces to minimize inference spend with minimal routing overhead.

llm-routing-costtyped-decisionsagents

tinyjev

ankit-aglawe

758

Evaluation & Observability E0 · catalogued

A tiny jev-like model that answers Choice, Score and Noul questions in one forward pass and returns calibrated probabilities. MLX or PyTorch, fully offline, System One compatible.

BASIC LISTING

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

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todo-jev

maker-KK

759

Routing & Cost Optimization MIT E2 · source reviewed

A task-routing experiment combining skill conditions and environment checks to suggest rules, skills or a large model.

JEV · Decision point

Jev classifies requests and matches skills, with heuristic fallback when unavailable.

Classification and recommendations are implemented; execution handlers still return examples and need real integrations.

llm-routing-costtyped-decisions

tweet-911

elliothux

760

Browser & OS Action E0 · catalogued

Real-time AI / solicitation / parrot-bot scores for X posts and replies. Chrome extension + Workers API on open-compute, judged 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.

typesafe-ai-playground

nickthompson480

761

Demos & Playgrounds E0 · catalogued

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.

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typesafe-ai-rails

GenieRobot

762

SDK & Decision Frameworks MIT E2 · source reviewed

Ruby on Rails integration gem for TypeSafe AI and Jev, providing model-level classification and decision policy patterns.

JEV · Decision point

Dispatches state and criteria from ActiveRecord models or services to Jev System One endpoints, logging structured outcomes.

Simplifies adding Jev discrete judgments to Rails web apps with standard Railtie configuration and policy wrappers.

multilanguage-sdkdomain-workflowstyped-decisions

typesafe-assist

JanOstrowka

763

MCP & Integrations E0 · catalogued

Home Assistant Assist conversation agent powered by TypeSafe's Jev (System One) model

BASIC LISTING

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

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typesafe-cli (geilt)

geilt

764

Agent Tooling E0 · catalogued

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.

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typesafe-go

sd109

765

Domain & Vertical Tools E0 · catalogued

A collection of typesafe.ai API utilities

BASIC LISTING

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

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typesafe-jev-bridge

RevocGG

766

SDK & Decision Frameworks E0 · catalogued

Use the TypeSafe Jev decision model (System One) anywhere: zero-dependency OpenAI-compatible bridge for 9Router, Claude Code, Cursor, Cline & any OpenAI SDK. Typed yes/no, choice & score judgments via CLI or HTTP.

BASIC LISTING

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

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typesafe-jev-calibrate-for-code-review

Selmar

767

CLI & Pipelines E1 · source linked

About calibrating Jev for code reviews

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.

cli-git-gatesevaluation-benchmarks

typesafe-mod

BeLazy167

768

Agent Tooling E0 · catalogued

Claude Code mod that routes decisions to TypeSafe's Jev model: ranks installed skills per prompt, and answers the agent's own this-or-that questions when confident.

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.