Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Kubernetes Mcp

FastMCP 3.4.4+ server for Kubernetes cluster orchestration and local Minikube cluster management.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

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

NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    src/kubernetes_mcp/server.py, line 143 tail_lines: Number of tail log lines to fetch (default: 100).

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .gitignore, line 19 .env

  • PERMISSION_SHELL_DECLARED Note

    Runs shell commands, and the manifest or description says so.

    src/kubernetes_mcp/client.py, line 342 res = subprocess.run(["minikube", "status", "-o", "json"], capture_output=True, text=True, timeout=5)

  • OBFUSCATION_FILE_OVER_READ_CAP Note

    A file was over the read cap and was not fully read.

    uv.lock, line 1 version = 1

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

    Note

    requests shell access. The manifest names this permission.

    PERMISSION_SHELL_DECLARED

    src/kubernetes_mcp/client.py, line 342

    res = subprocess.run(["minikube", "status", "-o", "json"], capture_output=True, text=True, timeout=5)

    src/kubernetes_mcp/client.py, line 368

    res = subprocess.run(["minikube", "start"], capture_output=True, text=True, timeout=120)

    src/kubernetes_mcp/client.py, line 370

    res = subprocess.run(["minikube", "stop"], capture_output=True, text=True, timeout=60)

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    src/kubernetes_mcp/server.py, line 143

    tail_lines: Number of tail log lines to fetch (default: 100).

    web/src/store.js, line 65

    const res = await fetch('/health');

    web/src/store.js, line 80

    const res = await fetch('/api/nodes');

    Show more

    web/src/store.js, line 96

    const res = await fetch(`/api/pods?namespace=${ns}`);

    web/src/store.js, line 118

    const detailRes = await fetch(`/api/pod/describe?namespace=${ns}&name=${podName}`);

    web/src/store.js, line 127

    const logsRes = await fetch(`/api/pod/logs?namespace=${ns}&name=${podName}&tail_lines=150`);

    web/src/store.js, line 142

    const res = await fetch('/api/deployment/scale', {

    web/src/store.js, line 161

    const res = await fetch('/api/deployment/restart', {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    .gitignore, line 18

    # Local configuration and credentials

    .gitignore, line 19

    .env

    .gitignore, line 21

    !.env.example

  • Agent instructions

    Pass

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

  • Obfuscation

    Note

    a file was over the read cap and was not fully read.

    OBFUSCATION_FILE_OVER_READ_CAP

    uv.lock, line 1

    version = 1

  • 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 24c7fb2c2f32. requests shell access. The manifest names this permission. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: 24c7fb2c2f327b9c2dac5e6e24fbe9da6aa97c69

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