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 361–384 of 853 Some public source has been reviewed; inclusion is not a performance or safety endorsement

jev-go

Gaurav-Gosain

361

SDK & Decision Frameworks MIT source reviewed

A Go TypeSafe System One client with typed questions, answers and batching helpers.

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

Stumble

362

SDK & Decision Frameworks MIT source reviewed

A community Go SDK and CLI supporting TypeSafe directly and Vercel AI Gateway.

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-sdkcli-git-gates

jev-java

Olti1947

363

SDK & Decision Frameworks

Idiomatic Java SDK for TypeSafe AI Jev System One decision engine

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-java

gudcks0305

364

SDK & Decision Frameworks MIT

Unofficial Java SDK for TypeSafe Jev and Vercel AI Gateway, with Spring Boot and WebClient support

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-judgment

HyunjunJeon

365

Security & Guardrails MIT source reviewed

Adds judgment checks for authorization, operation risk, and failure causes to coding Agents.

JEV · Decision point

Uses conversation and command results to assess whether to ask the user, whether an action exceeds scope, and whether to retry.

Makes checkpoints that may require user confirmation explicit.

security-guardrailscoding-agents

jev-mail

muhammedilyasy

366

Browser & OS Action

Chrome extension that triages Gmail with TypeSafe's Jev model: category, priority, spam % and reply % on every email.

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-oas-sentinel

ShuhanSun

367

CLI & Pipelines Apache-2.0

JEV never writes a review or changes a specification. It returns typed decisions and probabilities; deterministic Python code decides whether to pass, request review, or block.

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-ood-calibration

scienthoon

368

SDK & Decision Frameworks MIT

Independent calibration test of TypeSafe's Jev on a task it cannot have seen: 900 rule-generated support tickets (choice / score / boolean) plus 3 public benchmarks via Vercel AI Gateway. Raw responses, ECE with noise floor, temperature refit, per-type sign of miscalibration. Reproducible for ~$0.06.

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-router

prismhq

369

Routing & Cost Optimization MIT

An open-source LLM router built on LiteLLM and Jev: dynamically routes requests based on task complexity and context.

JEV · Decision point

Evaluates reasoning requirements of input prompts via single forward pass, delegating dispatch to LiteLLM.

Achieves high-throughput prompt triage and cost optimization without brittle heuristic regexes.

llm-routing-costtyped-decisions

jev-skip

valentynkit

370

Decision Tools MIT

A browser extension that classifies YouTube caption segments with Jev, splitting requests when the segment or token budget is exceeded, paints five categories on the seek bar, and auto-skips those painted slices over the threshold.

JEV · Decision point

One Choice per caption segment among content, sponsor, intro, outro, self_promo, recap, and other. Painted categories sponsor, self_promo, intro, outro, and recap skip when probability is at or above the threshold; content and other never skip.

Works on videos nobody has labeled yet; with no captions it does nothing.

typed-decisionsclassification-ranking

jev-system-one

haseeb-heaven

371

Voice & Conversation MIT source reviewed

A terminal Q&A app where OpenAI writes answers and Jev sets response policy and reviews drafts.

JEV · Decision point

Judges response mode, depth, uncertainty and draft quality inside a LangGraph workflow.

Displays the answer alongside a structured decision report.

voice-conversationevaluation-benchmarkstyped-decisions

jev-windows-voice

mstf-svndk

372

Browser & OS Action

Türkçe ve İngilizce doğal konuşmayla Windows 10/11 bilgisayar kontrolü: OpenAI Realtime, local Whisper, Jev, UI Automation ve Playwright.

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.nvim

valentynkit

373

Decision Tools MIT

A Neovim plugin that asks a plain-language question of every function in the buffer and lists every Jev hit in quickfix, ranked by probability.

JEV · Decision point

Scores each Treesitter function against the user question, splitting across requests if the buffer does not fit. Every hit is listed in quickfix; only hits at or above the threshold get buffer marks.

Finds cross-language shapes that grep misses, and lands the ranked hits in the existing quickfix loop.

typed-decisionsclassification-ranking

jevball

atarikcaliskan

374

Games & Simulation

22 Jev models, one ball: a 3D football match where every player is its own Jev (TypeSafe AI System One) decision. Watch, or take over the number 9.

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.

jevex

jvsteiner

375

SDK & Decision Frameworks MIT source reviewed

An Agent experiment where Jev directs a tool loop, a chat model fills arguments and prose, and MCP tools execute.

JEV · Decision point

Jev selects the next action and approves the concrete call; tool results feed the next state.

Separates decisions, content generation and execution, with author-run comparisons.

mcp-integrationstyped-decisions

jevify (Mintzs)

Mintzs

376

Domain & Vertical Tools

An optimized inference engine to turn LLMs into Jev-like machines: optimized for quick, lightweight, and accurate decision-making, classification, and scoring

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.

jevmetrics

ishantanu

377

CLI & Pipelines Apache-2.0

Use it to assess unfamiliar instrumentation, review candidates for reduced retention, and selectively filter metrics before they reach a primary backend. Inference runs asynchronously, and cached assessments let subsequent batches use the same decision without another API 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.

cli-git-gatestyped-decisions

jevsql

EugeneBoondock

378

Data & Search MIT source reviewed

Adds Jev semantic judgments to SQLite for filtering, ranking, matching and tracking decision evidence.

JEV · Decision point

Sends row data and typed questions to Jev and maps answers into queryable SQL results.

Provides batching, caching, budgets and decision history.

database-vectorsearch-retrievalclassification-ranking

jevtest

joshhu

379

Domain & Vertical Tools

It provides a web and CLI demo that sends user text to Jev through OpenRouter for Choice, Score, and Noul probability judgments and compares the results side-by-side with a general LLM.

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

jevtest

realZachi

380

Evaluation & Observability

Semantic test matchers for Vitest and Jest, powered by TypeSafe's Jev model. Write expectations in plain English, get calibrated probabilities back.

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.

jod

mateonunez

381

SDK & Decision Frameworks

Semantic schemas over TypeSafe's Jev — validate the state locally, then project typed answers.

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.

jselect

keltokhy

382

Data & Search MIT

Selects source-linked evidence within a token budget using Jev Noul relevance judgments and local diversity-aware selection.

JEV · Decision point

Jev judges whether each passage is useful evidence for the supplied task; local code selects verbatim passages and citations within the token budget.

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

search-retrievalcontext-compactiontyped-decisions

leanest

baronunread

383

Codebase & Graph Pathfinding MIT source reviewed

Adds Jev-based selection before an existing test runner using diffs and test source.

JEV · Decision point

Jev judges relevance; local policy runs tests on uncertainty, API failure or changes to the test file itself.

Supports shadow-mode comparison, but selected subsets cannot guarantee complete regression coverage.

coding-agentsast-code-graphevaluation-benchmarks

llama-index-jev

WiktorB2004

384

Data & Search MIT source reviewed

Provides Jev rerankers and routers for LlamaIndex to score retrieved passages or select query tools.

JEV · Decision point

Uses Score for passage relevance and Choice for selecting query engines or tools.

Adds Jev judgments to existing retrieval and query workflows.

search-retrievalclassification-rankingllm-routing-cost