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 1081–1104 of 1428 Some public source has been reviewed; inclusion is not a performance or safety endorsement

jev-review-mcp

jiawei686

1081

MCP & Integrations MIT E1 · source linked

Single-purpose MCP server (one tool, one job): a code-review gate powered by TypeSafe Jev (System One decision model).

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.

mcp-integrationstyped-decisions

jev-routing

nekowasabi

1082

MCP & Integrations MIT E1 · source linked

Go Jev harness for Claude Code, Codex, and Grok Build. No npx. Not an MCP server.

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.

mcp-integrationstyped-decisions

jev-screen-mcp

jiawei686

1083

MCP & Integrations MIT E1 · source linked

Single-purpose MCP server (one tool, one job): a content-moderation gate powered by TypeSafe Jev (System One decision model).

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.

mcp-integrationssecurity-guardrails

jev-secret-detection

teyhouse

1084

Security & Guardrails E1 · source linked

Benchmark and tool evaluating how well TypeSafe Jev identifies real secret credentials in file snippets.

JEV · Decision point

Submits code snippets to Jev to evaluate hardcoded credential risk, returning boolean and confidence scores.

Evaluates the feasibility and precision of low-latency non-generative models in pre-commit security gates.

security-guardrailstyped-decisions

jev-should-i-apply

cardotrejos

1085

Demos & Playgrounds E0 · catalogued

Typesafe/Jev public X demo

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.

jev-skill-router

shimo4228

1086

Decision Tools MIT E1 · source linked

Claude Code plugin: asks TypeSafe Jev which installed skill fits each prompt and logs the answer (shadow-first). A working reference for the skill-suggestion cookbook on Claude Code — the README records why it is unlikely to help a strong model as a router.

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.

typed-decisionsmcp-integrations

jev-skills

WanLanglin

1087

CLI & Pipelines E1 · source linked

Claude Code & Codex skills powered by Jev, TypeSafe's System One model. 256 calibrated judgements for $0.0005 in 0.72s — 360x cheaper than Claude Opus 5. Includes the first published Jev calibration curve, measured on 4,995 real agent decisions.

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-gatesmcp-integrationsevaluation-benchmarks

jev-skills

laguagu

1088

SDK & Decision Frameworks MIT E1 · source linked

Practical agent skills and examples for building with Jev. API setup, routing, ranking, and evidence checks.

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.

multilanguage-sdkmcp-integrations

jev-snake

iammusham

1089

Games & Simulation E0 · catalogued

An experimental Snake environment where the game engine owns deterministic rules and TypeSafe AI's Jev makes the movement decision from structured state on every tick.

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.

jev-snake (lalitsonawane)

lalitsonawane

1090

Games & Simulation E0 · catalogued

Snake autoplay powered by TypeSafe Jev (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.

jev-subtitle-translator

GeekLinkDev

1091

Agent Tooling E0 · catalogued

Translate SRT subtitles with structured LLM output and check every translation with 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.

jev-synergy-screening

PistachioAIHQ

1092

Evaluation & Observability E2 · source reviewed

A Jev title-and-abstract screening experiment compared with Cohen Abstract Triage labels for an ADHD review.

JEV · Decision point

Asks Choice and Noul questions about eligibility, then combines them into include or exclude decisions.

Records metrics for specific dataset slices and question designs to examine screening errors.

domain-workflowssearch-retrievalevaluation-benchmarks

jev-synthetic-survey

jjd-lab

1093

High-Frequency & Simulation MIT E1 · source linked

New to synthetic survey respondents? [Start here](#new-to-this-start-here). For the raw runs, the scored reports and the code, see [where to go](#where-to-go).

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.

games-simulationevaluation-benchmarks

jev-t-rex-runner

joshlarsen

1094

Games & Simulation E0 · catalogued

Chrome dino game played by Typesafe AI 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.

jev-tab-order

proshunsuke

1095

SDK & Decision Frameworks MIT E1 · source linked

**Organize the entire window with a single Jev API request.** Grouping and ordering decisions are evaluated together, regardless of the number of tabs.

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.

multilanguage-sdkbrowser-automation

jev-table-tennis

LiuHao-1443

1096

High-Frequency & Simulation MIT E1 · source linked

Table tennis vs. TypeSafe's Jev (System One). Every paddle move on the right is a live model decision — no local prediction, just a lookup table and a servo.

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.

games-simulationtyped-decisions

jev-test

clduab11

1097

Domain & Vertical Tools MIT E1 · source linked

Pre-registered benchmark: can a 2B local model (Gemma 4 E2B) answer web questions without making things up when a decision model (TypeSafe Jev) makes every call? SearXNG for search, MemPalace for verbatim memory, seven arms including open local judges. Spec and thresholds fixed before any run.

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-workflowsevaluation-benchmarkssearch-retrieval

jev-tmmluplus-eval

lianghsun

1098

CLI & Pipelines MIT E1 · source linked

Jev is not a chat model. You hand it a `state` plus a map of typed questions, and it returns one typed answer each — with calibrated probabilities and **no generated text**.

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

jev-toolkit

jbt95

1099

MCP & Integrations MIT E1 · source linked

MCP-first toolkit for TypeSafe/Jev — the System One decision model. One stdio server (jev mcp) serves any MCP-capable harness, backed by one local event log and Prometheus impact metrics you can scrape into your own Grafana.

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.

mcp-integrationstyped-decisions

jev-toolspace

xuan7zhang

1100

Context GC & Filter E2 · source reviewed

A research repository evaluating Jev relevance judgments for task-level tool menus using controlled TGB and BFCL protocols.

JEV · Decision point

Independent Noul questions score each tool against shared task evidence; local aggregation and top-K rules produce menu masks for downstream evaluation.

Separates relevance scoring from downstream tool-use success and records model/state/question identities for cache reuse.

context-compactionclassification-ranking

jev-toto

maxlibin

1101

CLI & Pipelines MIT E1 · source linked

Counting and comparison happen in Rust, because Jev is documented as unreliable at arithmetic. Jev receives per-number facts plus plain-English labels and answers two questions per number in one request: a yes/no probability for "drawn in the next draw" and a five-level cold-to-hot score with confidence. Module layout and commands are in `CLAUDE.md`.

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

jev-trade

Waxmell114514

1102

Domain & Vertical Tools E2 · source reviewed

A simulated crypto trading loop that sends BTC and ETH market features to Jev and models execution costs and latency.

JEV · Decision point

Jev answers bounded direction and risk questions; local policy decides simulated positions.

Records judgments, delay and trading costs in the same experiment.

finance-quantgames-simulation

jev-triage

cephalization

1103

Agent Tooling E0 · catalogued

Uses typeful jev, zero sync to pull and sync large repositories for issue triage

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.

jev-triage

ccai40359-wq

1104

Decision Tools MIT E1 · source linked

Millisecond-class test-failure triage for coding agents: RETRY / FIX_CODE / FIX_ENV, powered by TypeSafe Jev.

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.

typed-decisionscoding-agents