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 1033–1056 of 1428 Some public source has been reviewed; inclusion is not a performance or safety endorsement

jev-eval

4esv

1033

Evaluation & Observability E2 · source reviewed

Compares Jev and OpenRouter models on labeled tasks for accuracy, calibration, latency and cost.

JEV · Decision point

Collects judgments on matched tasks and computes confidence intervals and repeat-input stability.

Publishes data processing, runner and statistics code with model-specific results.

evaluation-benchmarksclassification-ranking

jev-eyes

LeddoEngano

1034

MCP & Integrations MIT E1 · source linked

Also in the state: `image` (size, source), `blocks` (`[x, y, w, h]` boxes with OCR confidence) and, if installed, `labels`. `see(img, compact=True)` keeps only `image`, `text` and top label names when tokens matter more than positions.

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-factorio-agent

CompleteDotTech

1035

High-Frequency & Simulation MIT E1 · source linked

Jev picks what, code owns how - a System One Factorio agent driven by TypeSafe's Jev on FLE

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-fill-pdf

takumi-golf

1036

Browser & OS Action E0 · catalogued

Fill Japanese PDF forms (申請書・届出書) in one click with Jev by TypeSafe AI. Labels go to Jev, your values never leave the browser. OCR for image-only forms, works with 国税庁 forms. Built on pdf-lib / pdf.js / tesseract.js via Vercel AI Gateway.

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-filter

apixly-ai

1037

Evaluation & Observability E0 · catalogued

Semantic filtering for AI tool results. Native npm CLI, caller-controlled context, batching, and reproducible benchmarks.

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-firewall

Koushik890

1038

Agent Tooling E0 · catalogued

Real-time firewall for AI coding agents: a PreToolUse hook checks every Claude Code / Codex tool call with deterministic shell-aware rules, and unmatched actions go to Jev for a calibrated allow/ask/block that fails closed.

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-flash-review

TheBous

1039

Evaluation & Observability E2 · source reviewed

An MCP review engine that evaluates Agent-supplied diffs against explicit rules.

JEV · Decision point

Jev checks the diff, selects evidence from actual hunks and adjudicates candidate findings.

The caller supplies diffs and task boundaries; the engine does not scan the repository itself.

coding-agentsmcp-integrationsevaluation-benchmarks

jev-frontier-100

softpudding

1040

CLI & Pipelines MIT E1 · source linked

**Jev scores 77.0%; Qwen3.5 2B with a 2,048-token thinking budget scores 82.0%; Qwen3.5 4B with the same budget scores 96.7%.** This small benchmark makes Jev's observed reasoning limits tangible through nine local-model settings.

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-go

guillemus

1041

SDK & Decision Frameworks E2 · source reviewed

A small unofficial Go SDK for Jev calls and model listing.

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-decisions

jev-go (kyledickey)

kyledickey

1042

SDK & Decision Frameworks E0 · catalogued

TypeSafe.ai Jev Go SDK

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-go-sdk

ajayk

1043

SDK & Decision Frameworks Apache-2.0 E1 · source linked

Dependency-free Go client for TypeSafe AI's System One API and the Jev 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.

multilanguage-sdktyped-decisions

jev-graphrag

neo4j-field

1044

Codebase & Graph Pathfinding E1 · source linked

Small demos + use-case backlog: TypeSafe AI's Jev as a calibrated decision layer for GraphRAG pipelines on Neo4j.

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.

ast-code-graphsearch-retrieval

jev-harness-router

JoacoMarc

1045

SDK & Decision Frameworks E0 · catalogued

Per-turn router for agent harnesses: one 350ms Jev call picks the model tier, effort, tools and skill, behind a hard deadline with a regex fallback. Claude Agent SDK adapter included.

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-hooks

microchipgnu

1046

Demos & Playgrounds E0 · catalogued

Compose typed Jev judgments as reactive semantic state in React and backend programs

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-in-mcp

chy4pro

1047

MCP & Integrations MIT E1 · source linked

MCP relay that adds use_jev to every server: Jev picks the tool calls, the calling model writes the values Jev cannot choose, the relay executes. Built on jev-dev-kit.

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-inbox-queue

tusharck

1048

Context GC & Filter MIT E1 · source linked

Turn an inbox into a short action queue with Jev (TypeSafe System One)

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-compactiontyped-decisions

jev-is-not-odd

ItzSupra13

1049

SDK & Decision Frameworks E1 · source linked

A probabilistic, AI-powered utility to determine if a number is not odd (or not even) using TypeSafe's Jev model and the Vercel AI SDK.

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-sdktyped-decisions

jev-issue-radar

Patrick-SCH03

1050

Domain & Vertical Tools MIT E2 · source reviewed

Jev Issue Radar is a read-only dashboard for GitHub duplicate-issue triage. It retrieves likely candidates, asks Jev whether each pair is duplicate, related, distinct, or insufficiently documented, and shows selected passages from both original reports for a maintainer to review.

JEV · Decision point

The app never closes issues, posts comments, or changes labels. Retrieval is currently lexical and bounded to a recent-item scan; this limitation is explicit in the UI and README.

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

domain-workflowssearch-retrievalclassification-ranking

jev-lab

Pasblinn

1051

Routing & Cost Optimization MIT E1 · source linked

Open lab: Jev (TypeSafe System One) routing in front of Claude Code - measured bugs, patch, and a hard fallback with alerts

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.

llm-routing-costtyped-decisions

jev-lab

q93304989-bit

1052

SDK & Decision Frameworks MIT E1 · source linked

This repository provides a single-page classifier demo that sends text with choice questions to Jev and displays the request JSON, probability distribution, confidence, latency, and token usage.

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-sdktyped-decisions

jev-lab

llt22

1053

SDK & Decision Frameworks E1 · source linked

Hands-on research lab for TypeSafe's Jev (System One model): reproducible benchmarks of Noul/Choice/Score primitives, confidence gating, fan-out latency, agent control — plus a living audit of the Jev ecosystem.

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-sdktyped-decisions

jev-labs

copyleftdev

1054

SDK & Decision Frameworks MIT E1 · source linked

Never confidently wrong: a TLA+-verified consensus kernel around TypeSafe's Jev, run through 1,680 chaos-tested pharmacy decisions with zero wrong verdicts. Film, code, and every captured call.

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-sdktyped-decisions

JEV-language

Nolane-x

1055

Demos & Playgrounds E0 · catalogued

Give your Jev language

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-lens.nvim

rashedInt32

1056

MCP & Integrations E0 · catalogued

Neovim popup for jev-lens verdicts: do I need to look, which files, and strip the debris.

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.