JevLoop

The agent loop where decisions don't cost a large language model call. Zero deps, runs offline, no API key needed.

Acta: A Decision-Centric Runtime for Agents

How it uses Jev

JevLoop routes them to a decision model (Jev / Laya) and keeps the LLM for the one thing only it can do: writing .

Getting started

Needs Node ≥ 22.6 — it runs TypeScript directly, with no build step.

Source: community catalog. Details and metrics reflect the published community snapshot and are not a performance endorsement. Documentation details extracted from GitHub · the README.

Keep exploring

Similar to JevLoop

Browse all
jev-triage project preview
Agent tooling
Uses typeful jev, zero sync to pull and sync large repositories for issue triage
pijev project preview
Agent tooling
PiJev: a terminal coding agent with Jev in the loop — Jev ranks the repository's files before the first call, picks skills and triages failures; your coding model writes the code. Built on Pi.
JevPromptCoach project preview
Agent tooling
Claude Code plugin that scores how well you prompt a coding agent, and shows whether your habits are improving. Runs on TypeSafe's Jev model. Zero added latency.
typesafe-ai-jev-example project preview
Demos & playgrounds
Hands-on demos for TypeSafe's Jev (System One) model: six runnable examples and four field notes. Runs offline with no API key; samples/ holds real measured output from jev-1.13.0.
poorjev project preview
Benchmarks & research
Open-source, local Jev alternative: a System One decision layer with provably calibrated confidence (ECE 0.170→0.071). Typed decisions, runs offline, no API key, no waitlist.
Jev-Register-Tool project preview
Applications
TypeSafe(Jev / System One)申请 → 确认邮件 → 获批 → 注册 → 建 API Key 全链路工具,纯 HTTP 无浏览器
JEV-language project preview
Demos & playgrounds
Give your Jev language
Browser & computer use
A browser agent that turns a single goal into a sequence of lightning-fast actions.
jev-agent-authorization project preview
Benchmarks & research
Jev agent authorization for MCP tool calls: Kinde identity and permissions plus Jev's typed, calibrated decisions, checked server-side before every call runs