Skip to content

Jev directory

Jev Tools & CLIs

770 curated Jev entries. Standalone Jev CLIs, desktop apps, playgrounds, and utilities you run directly, from shell history and semantic search to dashboards and meters.

By format

770
  • Docs10
  • Repos & sites722
  • Videos5
  • Posts8
  • Articles16
  • Playgrounds9

Updated

All 770 Jev Tools & CLIs

Search the full category, or filter by format and tag.

Showing 721–768 of 770 resources

20GitHub stars
A Hermes Agent plugin that replaces the auxiliary approval reviewer with TypeSafe's Jev decision model: one request asks six typed questions and deterministic code returns APPROVE, DENY, or ESCALATE.
Jev Tools & CLIs#community#python#agents
12GitHub stars
An omp plugin that does verbatim Jev-scored context reduction: stale tool calls and results are truncated to a short head plus a recoverable note, while sticky rewrites keep the provider's prompt cache intact.
Jev Tools & CLIs#community#typescript#compaction
13GitHub stars
Delegated browser execution for parent agents: Jev picks one bounded typed action from the current page snapshot, agent-browser performs it, and ambiguous or stuck flows escalate back to the parent.
Jev Tools & CLIs#community#javascript#browser
7GitHub stars
A Next.js app that fetches a public GitHub pull request's dossier and runs one Jev systemOne judgment, returning risk scores, noul probabilities, review depth, and an approve, request-changes, or block verdict.
Jev Tools & CLIs#community#typescript#classification
8GitHub stars
An experimental Codex CLI router where a local Responses proxy asks Jev one Choice per model call to select a host-available model and reasoning effort, while application-owned acceptance decides whether the task passed.
Jev Tools & CLIs#community#typescript#codex
5GitHub stars
A zero-dependency Node library and CLI that adds Jev natural-language predicates and decision tables to SQLite, with batching, caching, review queues, and saved decisions queryable as ordinary SQL tables.
Jev Tools & CLIs#community#javascript#sql
Cloudflare Workers AI's model page for typesafe/jev: run the structured evaluation model through an env.AI.run binding or the REST /ai/run endpoint, with typed Noul, Choice, and Score questions and worked examples.
Jev Tools & CLIsDocs#community#cloudflare#integration
Community
@ai-sdk/typesafe-ai adds an evaluation model to the Vercel AI SDK: one experimental_evaluate call sends a state with choice, score, and boolean questions and returns typed answers, probabilities, confidence, and usage.
Jev Tools & CLIsDocs#community#vercel#integration
Community
A test report that puts Jev in front of each agent action before it runs: most attacks were caught, with almost no false positives on legitimate tool calls.
Jev Tools & CLIsPost#community#x#agents
Community
A Neo4j integration where Jev picks the next relationship to follow at each node, turning graph navigation into a sequence of typed choices.
Jev Tools & CLIsPost#community#x#graph
Community
The official demo hub, currently home to the Smart Home Assistant, which uses speculative questions to pick a tool and falls back to a general model when nothing fits.
Jev Tools & CLIsDocs#official#demo#tool-calling
Official
TypeSafe's announcement that Jev is available on the Vercel AI Gateway, linking the model page with the Jev API, pricing, and playground.
Jev Tools & CLIsPost#official#x#vercel
Official
772GitHub stars
A Python asyncio runtime that puts Jev in a supervision loop above Codex or OpenCode workers: it judges completion, test sufficiency, and stuck loops, then steers, retries, or stops the job.
Jev Tools & CLIs#community#python#coding-agent
687GitHub stars
A staged code-review workflow that uses Jev for bounded judgments over Git diffs or whole codebases, with a local dashboard. Policy and thresholds stay in code while Jev screens five risk areas.
Jev Tools & CLIs#community#typescript#code-review
538GitHub stars
A web-search app where Jev picks sources, time ranges, and query terms, then ranks results from a dozen engines through Search1API, returning links and relevance scores instead of generated answers.
Jev Tools & CLIs#community#typescript#search
1.2kGitHub stars
A PostgreSQL extension that filters, ranks, and classifies table rows with plain-language conditions judged by Jev, batching 20 rows per request and caching answers per session.
Jev Tools & CLIs#community#postgres#sql
339GitHub stars
A browser-use agent where Jev picks one action per step from a page's interactive elements. Runs as an MCP server, CLI, or library and returns a step trace, screenshot, and console errors.
Jev Tools & CLIs#community#typescript#mcp
539GitHub stars
An MCP server exposing ten Jev judgment tools, including verify, screen, find, rerank, classify, review, and gate, each returning typed probabilities in roughly 150 to 500 ms.
Jev Tools & CLIs#community#typescript#mcp
411GitHub stars
Control a headed Chromium window by voice: one Jev request per partial transcript decides intent, target, and completeness in roughly 300 ms, while code applies thresholds and builds the action.
Jev Tools & CLIs#community#javascript#browser
353GitHub stars
A single-binary Go MCP server exposing one evaluate tool for noul, choice, and score questions, with one-command registration for Claude Code, Claude Desktop, and Codex.
Jev Tools & CLIs#community#go#mcp
164GitHub stars
A Claude Code plugin that trims long Bash output after a command runs but before the model sees it: irrelevant chunks are dropped with omission markers while errors, diffs, and code are preserved.
Jev Tools & CLIs#community#typescript#claude-code
150GitHub stars
Grep by meaning instead of regex: Jev scores every line, meanings combine with AND, OR, and NOT, and one query matches across Japanese, French, German, Spanish, and more.
Jev Tools & CLIs#community#javascript#cli
165GitHub stars
A Pi coding-agent extension with Jev as a decision layer: a gate judges bash, write, and edit calls before they run, and an output judge flags leaked secrets and classifies failures.
Jev Tools & CLIs#community#typescript#coding-agent
135GitHub stars
A Rust CLI that ranks agent skills for the next step with a two-stage Jev pass plus lexical prefiltering, with Claude Code hooks, a TUI, abstention, and --why-not explanations.
Jev Tools & CLIs#community#rust#cli
88GitHub stars
A pre-alpha PostgreSQL extension for categorical work in SQL: Noul, Choice, and Score functions plus batched variants that classified 38 strings in two requests.
Jev Tools & CLIs#community#postgres#sql
109GitHub stars
Render a live Jev meter over any video: Whisper transcribes, every sentence is scored, and ffmpeg exports a 16:9 edit with flags and a scoreboard. Presets cover debates, calls, and pitches.
Jev Tools & CLIs#community#python#video
119GitHub stars
Fish-style zsh autosuggestions ranked by Jev: each keystroke asks which of your last 100 distinct history entries you are completing and shows the best match for one-key acceptance.
Jev Tools & CLIs#community#typescript#zsh
77GitHub stars
A local decision ledger for Jev-class models: caches decisions keyed by redacted model, schema, and state, replays them deterministically in CI, and publishes bundles without raw state.
Jev Tools & CLIs#community#rust#caching
LangChain's langchain-typesafe integration exposes Jev as a TypeSafeClassifier plus experimental model-routing and auto-mode middleware that screens risky tool calls before execution.
Jev Tools & CLIsArticle#community#integration#python
Community
Tamara's demo of fast-jev-compaction for Claude Code: instead of summarizing context, Jev scores every tool call and drops the irrelevant ones, with a video of it running.
Jev Tools & CLIsVideo#community#x#video
Community
Alex Volkov reports that a Jev-powered Claude plugin reviewing unnecessary tool calls cut a session from nearly 1M to 86K tokens in about one second, with the install prompt in the post.
Jev Tools & CLIsPost#community#x#claude
Community
Guillermo Rauch says the fx auto-mode safety reviewer, currently on GPT Luna, is up to 18x faster at p95 and more accurate with Jev, and that Jev is coming to Vercel AI Gateway.
Jev Tools & CLIsPost#community#x#vercel
Community
OpenRouter's beta announcement for Jev: state plus typed questions returns typed decisions with probabilities, so there is no JSON prompting, parsing layer, or output validation.
Jev Tools & CLIsVideo#community#x#video
Community
Browser Use's Ultrafast agent puts Jev in charge of picking each browser action from a dynamic DOM action space. The author reports a flight search in 7 seconds for about $0.0039.
Jev Tools & CLIsVideo#community#x#video
Community
The pg-jev author demos jev(), a PostgreSQL extension that filters table rows with natural-language conditions and no index or embeddings, judging 129 rows in about a second.
Jev Tools & CLIsVideo#community#x#video
Community
A short demo of a model router built with Jev: each request is classified by Jev and forwarded to the model judged most suitable, shown as a screen recording.
Jev Tools & CLIsVideo#community#x#video
Community
A DuckDB extension that classifies rows in CSV, Parquet, or DuckDB tables with Jev, reported at about 10 seconds for 1,000 rows and framed as more ergonomic than a bespoke classifier.
Jev Tools & CLIsPost#community#x#duckdb
Community
Cloudflare's developer account announced that Jev is available on AI Gateway, callable from Workers with typed Noul, Choice, and Score questions returning structured answers.
Jev Tools & CLIsPost#community#x#cloudflare
Community
Use Jev as a Braintrust judge scorer, then inspect selected answers, confidence, and probabilities alongside the scorer answer. Includes tracing for your own calls.
Jev Tools & CLIsArticle#community#evaluation#observability
Community
2GitHub stars
An agent-first CLI for System One: ask, rank, extract, verify, screen, find, and decide from the shell, with an installable agent skill. Published on PyPI.
Jev Tools & CLIs#community#cli#agent
@jev.fn compiles a Python function definition (parameters, docstring, return annotation) into a state plus typed questions, then validates the answers back into Pydantic models.
Jev Tools & CLIsDocs#community#python#decorator
Community
A community playground with over a hundred use cases, games, and model challenges, with editable prompts and side-by-side comparisons.
Jev Tools & CLIsPlayground#community#playground#nextjs
Run a Pydantic AI agent on Jev: each field of the output type becomes one question, the prompt is the state, and confidence comes back per field.
Jev Tools & CLIsDocs#community#pydantic#python
Community
64GitHub stars
An MCP server that puts Jev in the coding loop for Cursor, Codex, and other MCP clients: coding-loop checks, ranking, verification, and review tools.
Jev Tools & CLIs#community#mcp#coding-agent
32GitHub stars
Jev-backed auto mode for the Pi coding agent: semantically approves bash, write, and edit tool calls, and fails closed whenever a decision cannot be made.
Jev Tools & CLIs#community#coding-agent#permissions
AI Gateway's evaluation modality: call Jev as `typesafe-ai/jev` through the AI SDK's experimental_evaluate API, with structured answers instead of free-form text.
Jev Tools & CLIsDocs#community#vercel#integration
Community
Model card for `typesafe-ai/jev`: evaluation type, $0.042 per 1M input tokens, zero output token charge, and a hosted playground.
Jev Tools & CLIs#community#vercel#pricing
Community
Access Jev through OpenRouter's decisions endpoint, an alternative route to early access that still uses TypeSafe's question and answer shapes.
Jev Tools & CLIs#community#openrouter#api
Community

Index of all 770 entries

Start here with the Jev AI model

Featured entries in tools & clis.

23.2kGitHub stars
Browser Use's ultrafast agent: Jev picks an operation and an element from an indexed action space in one request, and a small LLM writes text only when the action is TYPE_TEXT.
Jev Tools & CLIs#community#python#browser
7.7kGitHub stars
A Claude Code plugin and npm library that replaces transcript summarization with Jev keep-or-drop judgments, deleting stale tool calls and results while kept text stays verbatim.
Jev Tools & CLIs#community#typescript#claude-code
772GitHub stars
A Python asyncio runtime that puts Jev in a supervision loop above Codex or OpenCode workers: it judges completion, test sufficiency, and stuck loops, then steers, retries, or stops the job.
Jev Tools & CLIs#community#python#coding-agent

Jev AI model articles

Original guides that go deeper on Jev tools & clis.

How Home Assistant conversation agents, macOS voice pipelines, and an advisory sentinel put a fast typed decision in the loop — one call per utterance, thresholds in code, and a daily token budget.
Jev Tools & CLIs#home-assistant#voice#automation
Read article
Jev-based SEO tools split the crawl from the call: deterministic crawlers count and parse, while typed judgments rank fixes, place internal links, score search results, and track AI-answer mentions — with costs and caveats attached.
Jev Tools & CLIs#seo#search-visibility#audits
Read article
The request shape barely changes across surfaces; the surrounding contract does. When to call the API directly and when a gateway, a Worker binding, or a router entry earns its extra hop.
Jev Tools & CLIs#gateway#vercel#cloudflare
Read article

From the Jev community

Watch walkthroughs, read the threads, and see what builders are posting.

YouTube: AICodeKing tests support routing, refund detection, prompt-injection resistance, and browser automation.

YouTube: Retriever AI tests Jev on real browser tasks: where it worked, where it struggled, and what comes next.

YouTube: One terminal, three subscriptions, and Jev picking the model for Claude Code, Codex, and Cursor.

Hacker News: Software Bombe and live Enigma demo where Jev ranks cribs and judges plaintext.

ag_212 pointsShow HN: Jev as the Bletchley Park Analyst: A Software Bombe on EnigmaRead the thread on Hacker News

Hacker News: Show HN for the decide CLI: brew install, file context, and multi-question shell scripts.

vsekhar2 pointsShow HN: Decide – Jev decisions in the shell, scripts, and agent skillsRead the thread on Hacker News

Hacker News: Pipeable onesie CLI with shell-safety exit codes and a calibrate mode over labelled commands.

frodikarlsson3 pointsShow HN: onesie – An expressive Unix-pipeable CLI for System One models like JevRead the thread on Hacker News