Jev for Tool calling

408 curated Jev resources. Turn natural language into typed function calls and agent actions.

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Docs5
Repos & sites386
Videos3
Posts7
Articles5
Playgrounds2

All 408 Jev resources for Tool calling

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Showing 49–96 of 408 resources

Beginner-friendly harness guide showing Jev as the fast classifier inside agent loops, with ModelRouter and AutoMode middleware examples.

Jev Agents & MCP#community#github

Community

bpmforbusiness/jev-agent-harness

langgraph-jev-router

LangGraph conditional edge that uses Jev parallel Choice routing between specialized agents instead of a generative model.

Jev Agents & MCP#community#github

Community

JTankariya/langgraph-jev-routerPython

jev-agent-tools

Two dependency-free single-file browser tools: an agent loop detector and a skill router powered by Jev decisions.

Jev Agents & MCP#community#github

Community

codaaiteam/jev-agent-toolsHTML

jev-playground

Zero-dependency local playground showing six Jev workflows from triage to eval judging with shippable snippets.

Jev Demos & Experiments#community#github

Community

AviroopPaul/jev-playgroundJavaScript

system-one

Provider-neutral TypeScript runtime for System One decisions: write choice, noul, and score code once, then run it on TypeSafe Jev, local Reflex, any compatible /v1/systemone endpoint, or a custom provider.

Jev Integrations & Adapters#community#jevbest#catalog-import

Community

iamaamir/system-oneTypeScript

jev-recruiter

Local LinkedIn recruiting workspace on Browser Use's Jev Ultrafast: Jev screens titles, drives navigation, and assesses profile excerpts against your brief while a live browser stays visible; matches and evidence export as JSON.

Jev Agents & MCP#community#jevbest#catalog-import

Community

skeptrunedev/jev-recruiterPython

jev-sift

MCP server that screens files, public webpages, or inline text against a query and returns compact relevance probabilities, so the main agent opens only promising items.

Jev Agents & MCP#community#jevbest#catalog-import

Community

kbhuw/jev-siftJavaScript

duet-agent

Agent harness for work that outlives one chat, with resumable turns, routed state machines, and observational memory across sessions and processes.

Jev Agents & MCP#community#jevbest#catalog-import

Community

dzhng/duet-agentTypeScript

skilled-agent-harness_spec-driven-loops

Assistant framework that stores specs, memory, and specialist agents as plain markdown files in your repo for Claude Code, Codex, Opencode, and similar runtimes.

Jev Agents & MCP#community#jevbest#catalog-import

Community

MichelKerkmeester/skilled-agent-harness_spec-driven-loopsTypeScript

jev-cookbook

335

Chinese-language Jev cookbook with runnable Jupyter notebooks covering the three primitives, 18 official recipes, evaluation method, voice smart-home demo, and local Laya fine-tuning.

Jev Guides & Articles#community#jevbest#catalog-import

Community

datawhalechina/jev-cookbookPython

jev-browser-skill

Standalone CLI skill that drives isolated Playwright Chromium with Jev choosing scoped in-page actions, defaulting to Vercel AI Gateway with TypeSafe as an option.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

hqman/jev-browser-skillTypeScript

Jev_Star

StarCraft II research repo combining Jev action selection with optional Astra plans across full-game macro control and SMAC-Hard micromanagement, with videos, replays, and a paper.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

sc2musa/Jev_StarPython

Astra

Self-hosted agent runtime that adds an optional Jev judgment layer to memory filtering, lesson dismissal, request classification, and skill selection, with inspectable context and execution.

Jev Integrations & Adapters#community#jevbest#catalog-import

Community

matrixorigin/AstraRust

jev-skill-suggester

Codex Skill plus stdlib-only Python CLI that recommends which installed skill to read next for a task, allowing no-skill or uncertain answers and never executing candidates.

Jev Agents & MCP#community#jevbest#catalog-import

Community

win4r/jev-skill-suggesterPython

pi-jev-skill-picker

Pi extension that strips the full Agent Skills catalog from every request and loads only the skills a Jev ranking call judges relevant.

Jev Agents & MCP#community#jevbest#catalog-import

Community

safzanpirani/pi-jev-skill-pickerTypeScript

jevgrep

102

Behavioral code search that asks Jev to score repository fragments for a plain-language question and returns exact excerpts with paths and lines.

Jev Agents & MCP#community#jevbest#catalog-import

Community

nassim-arifette/jevgrepTypeScript

ai-news-aggregator

Daily AI news pipeline that gathers RSS, arXiv, and social sources with staged agents and publishes a searchable web frontend.

Jev Agents & MCP#community#jevbest#catalog-import

Community

flyryan/ai-news-aggregatorPython

SmartMoney-Cub

Local-first trading journal and review harness that is read-only over markets, captures runs into frozen envelopes and evidence packs, and requires explicit human promotion before any rule returns.

Jev Tools & CLIs#community#jevbest#catalog-import

Community

myc0576/SmartMoney-CubPython

loki

Agent runtime with a terminal UI and a messaging gateway that keeps memory, self-built skills, session search, scheduling, and subagents across Telegram, Discord, Slack, WhatsApp, Signal, and CLI.

Jev Integrations & Adapters#community#jevbest#catalog-import

Community

wundercorp/lokiPython

Jevbridge

Zero-dependency Node 22 adapter that puts typed Jev decisions beside any LLM, with swappable backends, confidence gates, MCP tools, an ACP sidecar, and offline-ready recipes.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

gamesonrblx/JevbridgeTypeScript

jev-kit

Claude Code kit that guards PreToolUse calls with a free pre-filter plus one Jev question for ambiguous cases, and adds sub-agent sizing, rechecks, search, daemon speedups, and monitoring.

Jev Demos & Experiments#community#awesomejev#catalog-import

Community

jonathanavis96/jev-kitPython

jev-judge-mcp

MCP server over stdio that gives coding agents fourteen Jev judgment tools, turning evidence plus an enumerable question into auto, review, or escalate actions from calibrated probabilities.

Jev Agents & MCP#community#jevbest#catalog-import

Community

PyModel/jev-judge-mcpPython

ulka

Local browser-agent extension where FX plans tasks and Jev picks constrained actions from observed elements, with model calls routed through Vercel AI Gateway.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

razaanstha/ulkaTypeScript

laya-jev-GraphRAG

GraphRAG layer that runs a 4-phase ingest-to-answer pipeline over Neo4j, Memgraph, AGE or Kuzu using Laya or Jev decisions instead of per-hop LLM calls.

Jev Integrations & Adapters#community#jevbest#catalog-import

Community

bodepudimuneendra-netizen/laya-jev-GraphRAGPython

robodiag-harness

Terminal harness that checks ROS 2 robots with deterministic health tests, capability descriptions, SQLite history, and optional Jev evidence routing.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

YueBit/robodiag-harnessPython

arbiter

Local server for typed-decision models that answers many Jev questions in one forward pass with checkpoint routing and micro-batching.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

0xBakeer/arbiterHTML

jev-agent-design-with-topk-logits-choices

Research runtime that pages a large logical tool and context space through a small bounded Jev decision surface with explicit approvals.

Jev Agents & MCP#community#jevbest#catalog-import

Community

6Mikao9/jev-agent-design-with-topk-logits-choicesPython

Pi-Jev-Guide

Pi guard plugin that checks inputs and tool calls with local rules plus Jev semantic judgements, with redaction and verification reminders.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

zszz3/Pi-Jev-GuideTypeScript

Multi-Agent

Local engine with TypeScript and Python SDKs that runs Claude Code and Codex sessions as a warm team with a durable mailbox.

Jev Agents & MCP#community#jevbest#catalog-import

Community

masonlee39/Multi-AgentTypeScript

jot

General-purpose System One agent where Jev chooses tools and arguments while Jot executes them and loops until it can reply.

Jev Demos & Experiments#community#awesomejev#catalog-import

Community

runta-dev/jotTypeScript

Cheshi

Desktop workspace for AI-assisted development that pairs Codex conversations with local CodeGraph indexes, plus editing, Ghostty terminal panes, and Git in one app.

Jev Tools & CLIs#community#jevbest#catalog-import

Community

CheshiAI/CheshiC

pi-dcp

Pi extension that trims wasted context before each model call by deduplicating repeated tool results, stripping failed payload args, and letting the model summarize closed spans.

Jev Tools & CLIs#community#jevbest#catalog-import

Community

Davidcreador/pi-dcpTypeScript

hermes-nerve

Async supervisory layer for Hermes Agent that locks Definitions of Done, proves mechanical criteria locally, and calls Jev only for unresolved semantic checks under a token budget.

Jev Tools & CLIs#community#jevbest#catalog-import

Community

keeltrace/hermes-nervePython

oh-my-harness

Single-command harness that turns a plain-language stack description into synced docs plus blocking hooks for Claude Code, Codex, and Pi, with deterministic presets or one Jev chooser call.

Jev Agents & MCP#community#jevbest#catalog-import

Community

kyu1204/oh-my-harnessTypeScript

zero-api-key-web-search

Python CLI and MCP server for keyless web search over DuckDuckGo or self-hosted SearXNG, with an optional local Laya sieve that filters, reranks and stance-checks evidence before it reaches an agent.

Jev Agents & MCP#community#jevbest#catalog-import

Community

wd041216-bit/zero-api-key-web-searchPython

jev-cli

Rust terminal tool that asks Jev noul, choice and score questions about piped text or files and returns calibrated probabilities with stable exit codes for shell scripts, CI jobs and agents.

Jev Agents & MCP#community#jevbest#catalog-import

Community

shaharia-lab/jev-cliRust

JevLoop

Runnable agent harness that moves pick, score and yes-no loop choices to Jev or Laya in milliseconds while reserving the language model for writing, compiling DECISION.md into executable questions.

Jev Agents & MCP#community#jevbest#catalog-import

Community

zjunlp/JevLoopTypeScript

muse-jev-playbook

Agent-oriented playbook for using Jev as a cheap, fast decision layer that triages, classifies, scores, and gates work before expensive browser, research, retry, or subagent steps.

Jev Agents & MCP#community#awesomejev#catalog-import

Community

Bodila51/muse-jev-playbookPython

jevvy

Permissions plugin for coding agents that reviews unresolved shell approval requests with Jev and auto-approves only harmless ones, leaving everything else in the normal permission flow.

Jev Agents & MCP#community#jevbest#catalog-import

Community

PanAchy/jevvyTypeScript

patdown

Node CLI that lints a file tree against fuzzy natural-language rules in one Markdown file, judging each matched file with a swappable TypeSafe-backed judge.

Jev Agents & MCP#community#jevbest#catalog-import

Community

tyler-dot-earth/patdownTypeScript

Tiermem

Tiered agent memory keeping compact summaries with source links over searchable raw history, where a router decides per query whether notes suffice or raw pages must be recovered.

Jev Agents & MCP#community#jevbest#catalog-import

Community

FreedomIntelligence/TiermemPython

jev-ultrafast-mcp

MCP server where one browser_goal call hands a URL, a goal, and code-checked assertions to a server-side loop driven by a decision model over live page elements.

Jev Demos & Experiments#community#jevbest#catalog-import

Community

jiawei686/jev-ultrafast-mcpPython

awesome-jev-live

275

Self-rebuilding Jev index organized by evidence grade, with one ranked pick per category, multilingual guides, and links through to full cards and sources.

Jev Guides & Articles#community#jevbest#catalog-import

Community

wh000wh000/awesome-jev-livePython

cmd-mod-jev-nudge

Command Code mod that asks Jev at every agent stop whether a nudge would help, continuing unfinished work while leaving waits for the user alone.

Jev Agents & MCP#community#jevbest#catalog-import

Community

CommandCodeAI/cmd-mod-jev-nudgeTypeScript

eutrya

Standalone terminal agent that puts Jev inside its planning loop, proposing text-model steps and scoring candidates against independent rubrics before a deterministic policy executes one.

Jev Agents & MCP#community#jevbest#catalog-import

Community

hellozenstrategist-lab/eutryaJavaScript

jev-cli

Command-line toolkit that wraps Jev judgments into scriptable verify, screen, classify, extract, find, rerank, match, route, ask, compact, and batch commands.

Jev Agents & MCP#community#jevbest#catalog-import

Community

Nasrallah-AL/jev-cliTypeScript

zevals

TypeScript evaluation utilities that test full AI agent conversations as end-to-end scenarios with binary assertions, without imposing a test runner.

Jev Agents & MCP#community#jevbest#catalog-import

Community

opencx-labs/zevalsTypeScript

pi-jev-router

Pi Coding Agent extension that routes only at task boundaries, using Jev judgments plus declared capabilities, availability, price estimates, and failure state.

Jev Agents & MCP#community#jevbest#catalog-import

Community

win4r/pi-jev-routerTypeScript

Start here with Jev

Featured entries for tool calling.

Fast Jev Compaction

7.6k

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

Community

tamaratran/fast-jev-compactionTypeScript

jevQL

psql-shaped CLI and Go, TypeScript, and Python SDKs that let you write jev(), jev_prob, jev_choice, and jev_score in queries against vanilla PostgreSQL, judging the surviving rows with Jev in batches. No CREATE EXTENSION or superuser required.

Jev Tools & CLIs#community#go#postgres

Community

kylemclaren/jevqlGo

Related use cases

Use cases that overlap with Tool calling.

Jev articles

Original guides that go deeper on Jev tool calling.

All Jev articles

The Cost of a Decision: Token Pricing and the Break-Even Point

Oct 12, 2026

Jev bills input tokens and gives output away, and questions in one call run in parallel. Why the state is where the money is, and how to size a request before you ship it.

Jev Practices & Patterns#pricing#cost#api

Read article

Retrieval with Decisions: Filter, Rerank, and Verify

Oct 12, 2026

Retrieval is a sequence of bounded judgments. How a decision model slots into passage filtering, semantic find, reranking, and citation checks, and what stays in deterministic code.

Jev Cookbooks#retrieval#reranking#rag

Read article

Jev in Customer Support: Triage, Routing, and Escalation

Oct 12, 2026

Support is a long chain of small judgments over text. Triage category and urgency separately, route with a confidence gate, decompose hard tickets, and decide the action in code.

Jev Practices & Patterns#customer-support#routing#triage

Read article

Watch: Jev in action

Video walkthroughs and demos from the community.

YouTube: Sam Witteveen on System 1 thinking, then Choice, Score, and Noul demos, and chained actions.

YouTube: Nate Herk compares speed and cost against ordinary models, then builds an X feed classifier and a paper-trading prototype.

YouTube: Ray Amjad puts Jev inside an agentic coding loop and looks at what it costs to run.

Discussions about Jev

Threads from Reddit and Hacker News about building with Jev.

Hacker News: OpenAI's Luna Decisions API framed as a fast follow to TypeSafe's Jev wave.

matt_d6 pointsOpenAI Answers TypeSafe's Jev with a Decision API Built on LunaRead the thread on Hacker News

Hacker News: Nikola Balić on what made the Jev launch easy to try and easy to share.

nkko2 pointsWhat TypeSafe Got Right with the Jev LaunchRead the thread on Hacker News

Hacker News: Pointer to a DiffusionGemma plus vLLM tutorial for a Jev-shaped classifier.

1 pointHow to build a Jev-style classifier with DiffusionGemma and vLLMRead the thread on Hacker News

Hacker News: SafeDep Gryph plus Jev checks for compromised coding-agent behavior.

2 pointsDetecting Compromised AI Coding Agents with Jev and GryphRead the thread on Hacker News

From the Jev community

Posts from builders shipping with Jev right now.

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