jev

MCP server · PyPI · ★ 3 · graded 2026-10-23Source linked

Jev judgments for agents: injection scanning, shell risk gating, ranking

No outside reports on file

jev runs shell or system commands; restrict its folder reach, network access, and credentials before installing.

Based on public adoption and transparency signals as of Oct 23, 2026. Our opinion, not a code audit or security guarantee.

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What it can access

Local filesNo local folder access notedLOW
Command executionRuns shell or system commandsREVIEW
Network reachLocal or standard API callsLOW
CredentialsNo API token requiredLOW
Package sourcePyPI (jev-mcp)PUBLIC

Inferred from this listing’s public package details and description. Check the project’s source before installing.

Install

uvx jev-mcp

All setup options ↓

Check this skill Watch it in my stack Compare README badge View project

Everything known

We found nothing about this project in the sources we read (last checked 2026-10-30). That does not mean it has no problems.

0 incidents · 0 advisories · 0 news articles · 0 community threads · checked 2026-10-30

Popularity grade: D (from public signals such as stars and downloads, not a code review). Graded 2026-10-23.

Sources we read: OSV, GitHub Advisory Database, CISA Known Exploited Vulnerabilities, 44 security news feeds and our incident library. Last checked 2026-10-30.

Check a specific version →

About Jev

Jev is an MCP server focused on General: Jev judgments for agents: injection review, shell risk gating, ranking.

It is published on PyPI as jev-mcp and hosted on GitHub at Aitejiu/jev-harness-lab (3 GitHub stars, 36 PyPI downloads, last repository push on 2026-09-21). Based on its public metadata, its operational scope includes: runs shell or system commands.

Setup

These use the package this listing points to. Check the project’s own instructions before running anything.

PyPI command

uvx jev-mcp

PyPI (pip) command

pip install jev-mcp

MCP client config

For Claude Desktop (claude_desktop_config.json) or Cursor (.cursor/mcp.json).

json

{
  "mcpServers": {
    "jev-mcp": {
      "command": "uvx",
      "args": [
        "jev-mcp"
      ]
    }
  }
}

Why this grade

DD — High risk signals

Signal-based grade (1/7 points): public source code. This reflects adoption and transparency, not a code review.

Popularity and upkeep

20/100

GitHub stars: 3
PyPI downloads: 36
Listing last refreshed: 2026-10-28

These are public popularity signals, not a maintenance check. Look at the repository’s commit history and open issues.

Risks to watch for

Command execution reach: Public metadata indicates shell, terminal, or container command execution. Run inside an isolated container or VM and require human approval before executing commands.
Dependency & version pinning: Distributed via PyPI (jev-mcp). Pin an exact release version or commit SHA rather than floating tags so upstream updates are reviewed first.

How to lower the risk

Least-privilege permissions

Give it access only to the specific folders, accounts or projects it needs, never your whole drive or admin account.
Use a separate, limited API key or login just for this tool so you can switch it off without affecting anything else.

Network isolation

Run it on a work computer or sandbox account, not one holding personal or company-sensitive data.
If your IT team can, limit which websites and services it is allowed to contact.

Monitoring

Check its activity history or logs weekly at first, and look at what it changed or sent.
Turn on alerts for new logins or unusual usage on any account it connects to.

Red flags to watch for

It asks for more access than its job requires, or prompts you to paste passwords.
It suddenly updates with new owners, or starts contacting unfamiliar websites.

Questions

How do I install Jev?

Run uvx jev-mcp (or pip install jev-mcp) in your terminal, or add the server entry to your claude_desktop_config.json or .cursor/mcp.json as shown in the Setup section on this page. Full setup docs and environment variables are in github.com/Aitejiu/jev-harness-lab.

Are there security reports about Jev?

No reports found for this package in our research (last checked 2026-10-30). Jev currently holds Grade D (High risk signals) based on public adoption and transparency signals. Review the permissions and source repository before granting access to local files, shell commands, or API keys.

Is Jev actively maintained?

Jev has 3 GitHub stars and 36 PyPI downloads, with its latest repository commit pushed on 2026-09-21. Our directory data was last refreshed on 2026-10-28. Check recent commit activity, release tags, and open issues at github.com/Aitejiu/jev-harness-lab before pinning it in production.

What are alternatives to Jev?

Compare Jev side by side with similar MCP servers in the Related tools section on this page, or browse all MCP servers on AgentArmorHQ.

Maintain or use Jev? Show its live grade in your GitHub README, docs site, or run a check from the terminal before you install.

GitHub README Markdown:

markdown

[![AgentArmorHQ Risk Grade for Jev](https://agentarmorhq.com/api/badge/aitejiu-jev-harness-lab)](https://agentarmorhq.com/skills/aitejiu-jev-harness-lab)

HTML embed:

html

<a href="https://agentarmorhq.com/skills/aitejiu-jev-harness-lab"><img src="https://agentarmorhq.com/api/badge/aitejiu-jev-harness-lab" alt="AgentArmorHQ Risk Grade for Jev" height="20" /></a>

Terminal check:

terminal

curl -fsSL https://agentarmorhq.com/api/cli | node --input-type=module - check "aitejiu-jev-harness-lab"

Share with your security lead

Need sign-off to use jev? Copy this note for Slack, a ticket or a pull request.

### AgentArmorHQ Security Review Memo: jev
- **Listing URL:** https://agentarmorhq.com/skills/aitejiu-jev-harness-lab
- **Type:** App connector
- **Risk Grade:** Grade D (High risk signals)
- **Outside Security Advisories on File:** 0
- **Public Adoption:** 3 GitHub stars

#### Permission & Blast-Radius Signals
- **Local files:** No local folder access noted
- **Command execution:** Runs shell or system commands
- **Network reach:** Local or standard API calls
- **Credentials:** No API token required
- **Package source:** PyPI (jev-mcp)

#### Recommended Hardened Setup
- **Command:** `uvx jev-mcp`
- **Controls:** Pin an exact version in `.mcp.json`, scope access to a single workspace folder, and use a least-privilege read-only token where supported.

_Based on public adoption and transparency signals as of Oct 23, 2026. Our opinion, not a code audit or security guarantee._

Key facts

Type: App connector
Publisher: Aitejiu
Source code: github.com/Aitejiu/jev-harness-lab
Install command: pip install jev-mcp
Est. context load: ~850 tokens / turn (~5 tool schemas, 0.43% of 200k context)
Popularity: 3 GitHub stars, 36 PyPI downloads
Last updated: 2026-10-28
Last graded: 2026-10-23

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