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 937–960 of 1428 Some public source has been reviewed; inclusion is not a performance or safety endorsement

openpave-jev

cnrai

937

Evaluation & Observability E0 · catalogued

PAVE skill for non-autoregressive decision models (Jev / Laya / TypeSafe): typed Choice, Score and Noul answers with calibrated probabilities

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-fast-jev-compaction

KamilPostrozny

938

Context GC & Filter MIT E1 · source linked

Fast JEV compaction extension for pi

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.

context-compactionclassification-ranking

pi-jev-context

kevinpita

939

Context GC & Filter MIT E2 · source reviewed

A reversible Pi context filter using Jev to judge whether older messages remain useful.

JEV · Decision point

Scores historical fragments and hides low-scoring content from future requests while preserving session history.

Disabling restores full context; enabling sends selected history to TypeSafe.

context-compactioncoding-agentscontext-pruning

polymarket-btc-5m-agent

BrunooMoniz

940

Evaluation & Observability E0 · catalogued

Agente de trading para o mercado BTC Up/Down de 5 minutos da Polymarket: modelo em código, Jev (TypeSafe System One) como portão, ordens maker, calibração e shadows em paper

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.

Postmark

silky-x0

941

Demos & Playgrounds E0 · catalogued

A working Demo that acts as classifier to classify linkedin post which inside uses jev by 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.

pytest-jev

allebee

942

CLI & Pipelines MIT E1 · source linked

Extra state goes in `context`, such as a policy or the documents a RAG app retrieved. A claim can name it in backticks:

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-gatestyped-decisions

research_desk

0xnairb

943

Evaluation & Observability E0 · catalogued

TypeSafe Jev demonstration for new analyzation — experimenting with Jev for fast analysis of news and tickers

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.

robo-harness

grmkris

944

Domain & Vertical Tools E1 · source linked

SO-101 robot-arm workbench combining Bun/Effect and Python drivers, using Jev for joint action constraints.

JEV · Decision point

Assesses spatial coordinates and sensor states, using Jev to select safe step actions within bounded budgets.

Extends TypeSafe Jev low-latency discrete judgments to physical-world robotic arm motion control.

domain-workflowstyped-decisions

routeKit

rajdhakad9826

945

Agent Tooling E0 · catalogued

Agent-native LLM model router built with JEV by TypeSafe.ai. Dynamically selects the most suitable model based on task complexity, reasoning requirements, and tool usage.

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.

rover-claude-jev-demo

Devonance

946

Demos & Playgrounds E0 · catalogued

Just a weekend project with Claude as system two, and Jev as system One.

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.

ruby_llm-providers-typesafe

javiergradiche

947

Evaluation & Observability E0 · catalogued

TypeSafe System One models (Jev) for RubyLLM: typed judgments, evaluations and reranking.

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.

s1_ruby

innocentdiaz

948

SDK & Decision Frameworks MIT E2 · source reviewed

Makes System One measurement and result collapse a Ruby primitive, with a TypeSafe provider and its own test suite.

JEV · Decision point

Ruby applications submit bounded questions through one interface and collapse probability distributions into actionable results.

Provides the Ruby ecosystem with an idiomatic System One integration layer.

rubysdktyped-decisions

siftr

Bentlybro

949

Evaluation & Observability E0 · catalogued

Fast, cheap judgment for AI coding agents: semantic search, focused reads and list picking in ~2s. CLI + MCP server on TypeSafe Jev. Benchmarked on SWE-bench.

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.

skill-router

lomeshdutta

950

Agent Tooling E0 · catalogued

Tell Claude Code which installed skill a session needs, using Jev (TypeSafe AI) for the decision and skills.sh for discovery.

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.

skillfeed

iikareem

951

Agent Tooling E0 · catalogued

A tech reading feed ranked to your skills — 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.

Slither-Me-Jev

tanayvasishtha

952

Games & Simulation E0 · catalogued

8 AI snakes, 1 human, 1 arena. Every snake is driven live by TypeSafe's Jev, making all decisions in real time

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.

snake-jev

siroccomask

953

High-Frequency & Simulation MIT E1 · source linked

Real-time Snake game driven by parallel Jev assessments, deciding optimal turns in a single API call per tick.

JEV · Decision point

Scans obstacles and food locations per tick, querying Jev in parallel for survival and approach probabilities.

Demonstrates Jev high-frequency, deterministic low-latency performance in real-time game ticks.

games-simulationtyped-decisions

tempo-jev-demo

mychaelangelo

954

Domain & Vertical Tools MIT E1 · source linked

I created Tempo with OpenAI's Codex, using Astra and GPT-5.6 Sol, with my direction and guidance. Codex also came up with the name Tempo. I haven't personally reviewed all of the code. This is an experimental demo so don't use it for anything serious. It may contain bugs, unexpected behaviour, and issues I'm not aware of. More details on how to get started below. Have fun!

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.

domain-workflowstyped-decisions

toolgate

ndolinschi

955

Demos & Playgrounds E0 · catalogued

Agent tool/MCP call gate — allow / ask_human / deny via 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.

toolgate (RiskAverseTech)

RiskAverseTech

956

Evaluation & Observability E0 · catalogued

Open auto mode for AI agents — a calibrated tool-call firewall powered by TypeSafe Jev. Ships as a Claude Code hook

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.

tsai-civ2

phyous

957

High-Frequency & Simulation E1 · source linked

An experimental harness where TypeSafe Jev plays classic Civilization II in a browser, computing live action probability distributions.

JEV · Decision point

Evaluates city builds, tech research, diplomatic postures, and unit moves per turn from game state.

Demonstrates Jev real-time probability distributions applied to complex strategic planning and game loops.

games-simulationtyped-decisions

turbo

sightmap

958

Browser & OS Action E0 · catalogued

Jev-powered semantic browser use

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

markjaquith

959

CLI & Pipelines MIT E2 · source reviewed

Rust CLI experiments for health-information screening, comment review, tone analysis and business or occupation classification.

JEV · Decision point

Sends text to Jev for separate Noul probabilities, scores or category choices.

Offers a terminal interface for inspecting structured judgments.

cli-git-gatesclassification-rankingdomain-workflows

typesafe-ai-jev

kcb-swe-gh

960

SDK & Decision Frameworks E0 · catalogued

Java 21 client for Jev, TypeSafe AI's structured decision 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.