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JevLang

jevlang.shInfrastructure

PulseGate's liveness check found it on 22 Sep 2026; it is registered on GitHub and has been in the index since 22 Sep 2026. How this is checked

JevLang is a TypeScript policy engine that uses LLMs to answer small structured questions while application code evaluates the resulting rules. It supports typed policies, routing, triage, approvals, tool guarding, and explanations for developers building agentic applications.

Inferred · not functionally tested

MITWebCLIAPICloud-managed
JevLang preview
Visit jevlang.sh
1star
8features
2026since

Overview

6 features

Purpose: Making reliable, explainable policy decisions without letting an LLM choose application branches directly.

Inferred · not functionally tested

Audience: developers building LLM-powered agents and applications

Inferred · not functionally tested

Functions: agents, workflow_automation

Inferred · not functionally tested

Interfaces: API: indicated (inferred, not tested) · MCP: unknown · CLI: indicated (inferred, not tested) · Self-hosting: unknown

Recorded constraints: pricing: unknown · license: MIT · platforms: WEB · deployment: browser, cli, api_only, cloud_managed

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: jevlang.sh · github.com. These links do not verify the individual claims.

JevLang is an AI security & guardrails project. Inferred · not functionally tested: It focuses on making reliable, explainable policy decisions without letting an LLM choose application branches directly. Inferred · not functionally tested: It is built as an open-source project for developers building LLM-powered agents and applications. Basis unknown · not verified: It runs on the web, the command line, and API.

JevLang first shipped in 2026. The project is developed in the open on GitHub with 39 commits in the last 90 days. Inferred · not functionally tested: Among its 6 catalogued features are typed policies, LLM evaluation, and rule-based routing.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • Typed policies
  • LLM evaluation
  • Rule-based routing
  • Decision explanations
  • Approval workflows
  • Agent tool guarding

Topics: Inferred · not functionally tested

Tags
llm-policy-enginetypescript-rulesexplainable-decisionsagent-guardrails
AI capabilities
TextStructured
Inference: Cloud API

JSON profile · Text profile · Access guide

Built with & integrations

Hosting
Vercel
Written with
Claude Code
Runs on
BrowserCLIAPI-onlyCloud-managed
Written with — evidence
Claude Code
commit fbd10831c9e2 · since Sep 2026
Detected from
Vercel
x-vercel-id header · x-vercel-cache header

Trust & compliance

License
MIT
Public signals
HTTPSGitHub · ★ 1Active maintenance

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed22 Sep · 14:02 UTC
    Jevlang: Policy Engine for LLM Decisions seen via Hacker News firehose (Algolia)
    Source: Hacker News firehose (Algolia) · Open

Frequently asked questions about JevLang

What does JevLang do?
Inferred · not functionally tested: JevLang focuses on making reliable, explainable policy decisions without letting an LLM choose application branches directly. It is catalogued under AI security & guardrails on PulseGate.
Who is JevLang for?
Inferred · not functionally tested: JevLang is an open-source project built for developers building LLM-powered agents and applications.
What platforms does JevLang run on?
Basis unknown · not verified: JevLang runs on the web, the command line, and API.
Is JevLang still maintained?
PulseGate's liveness check found it on 22 Sep 2026. Its GitHub repository shows 39 commits in the last 90 days.
What projects are similar to JevLang?
Similar projects tracked by PulseGate include Jevlish, jev, and Jev API Playground.JevlishjevJev API Playground
How long has JevLang been around?
JevLang first shipped in 2026.
Is JevLang open source?
Basis unknown · not verified: JevLang has a public GitHub repository.

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