Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Vibe Check Mcp Server

Vibe Check is a tool that provides mentor-like feedback to AI Agents, preventing tunnel-vision, over-engineering and reasoning lock-in for complex and long-horizon agent workflows.

Compatibility: Not stated.

Grade C

One Medium finding. Read the findings before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit ed8452f2d626, unchanged since the check below.

INSTALL_LIFECYCLE_HOOK

Why this grade

  • INSTALL_LIFECYCLE_HOOK Medium

    A package install hook (preinstall, install, postinstall or prepare) runs a script.

    package.json, line 17 prepare

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Pass

    No shell or command execution found, and no extra permission was declared.

  • Install and update

    Concern

    runs a script at install time.

    INSTALL_LIFECYCLE_HOOK

    package.json, line 17

    prepare

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    src/utils/llm.ts, line 111

    const response = await axios.post(`${openrouterBaseUrl}/chat/completions`, {

    src/utils/llm.ts, line 215

    const response = await fetch(url, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    scripts/docker-setup.sh, line 70

    # Create .env file

    scripts/docker-setup.sh, line 74

    cat > .env << EOL

    scripts/docker-setup.sh, line 78

    chmod 600 .env # Secure the API key file

    Show more

    scripts/install-vibe-check.sh, line 59

    # Create .env file in user's home directory

    scripts/install-vibe-check.sh, line 60

    echo "Creating .env file for Gemini API key..."

    src/cli/doctor.ts, line 50

    const cwdEnvPath = resolve(process.cwd(), '.env');

    src/cli/doctor.ts, line 51

    const homeEnvPath = resolve(homeConfigDir(), '.env');

    src/cli/env.ts, line 58

    const cwdEnvPath = resolve(process.cwd(), '.env');

    src/utils/anthropic.ts, line 17

    const apiKey = process.env.ANTHROPIC_API_KEY;

    src/utils/anthropic.ts, line 18

    const authToken = process.env.ANTHROPIC_AUTH_TOKEN;

    src/utils/llm.ts, line 20

    if (!genAI && process.env.GEMINI_API_KEY) {

    src/utils/llm.ts, line 23

    genAI = new GoogleGenAI({ apiKey: process.env.GEMINI_API_KEY });

    src/utils/llm.ts, line 29

    if (!openaiClient && process.env.OPENAI_API_KEY) {

    src/utils/llm.ts, line 31

    openaiClient = new OpenAI({ apiKey: process.env.OPENAI_API_KEY });

    src/utils/llm.ts, line 107

    if (!process.env.OPENROUTER_API_KEY) throw new Error('OpenRouter API key missing.');

    src/utils/llm.ts, line 114

    }, { headers: { Authorization: `Bearer ${process.env.OPENROUTER_API_KEY}`, 'HTTP-Referer': 'http://localhost', 'X-Title': 'Vibe Check MCP Server' } });

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

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Note

Hygiene check of commit ed8452f2d626. runs a script at install time. can reach a host that is not written as a fixed address. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: ed8452f2d626011526b0c62f7be7d0a6f67794c1

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen