Grades are a hygiene check, not a security guarantee.

Claude Code, Plugin

mapbox

Mapbox skills and MCP servers for building location-aware applications with AI.

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 f71cd72b8d89, 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 20 postinstall

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

    skills/mapbox-mcp-runtime-patterns/AGENTS.md, line 73

    mcp = subprocess.Popen(['npx', '@mapbox/mcp-server'],

    skills/mapbox-mcp-runtime-patterns/references/pydantic-ai.md, line 71

    self.mcp_process = subprocess.Popen(

  • Install and update

    Concern

    runs a script at install time.

    INSTALL_LIFECYCLE_HOOK

    package.json, line 20

    postinstall

  • Network

    Concern

    can reach a host that is not written as a fixed address. can reach api.example.com. The description does not name that host. can reach api.mapbox.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    skills/mapbox-data-visualization-patterns/AGENTS.md, line 326

    const data = await fetch('/api/live-data').then((r) => r.json());

    skills/mapbox-data-visualization-patterns/references/animation.md, line 87

    const response = await fetch('https://api.example.com/live-data');

    skills/mapbox-data-visualization-patterns/references/animation.md, line 95

    const ws = new WebSocket('wss://api.example.com/live');

    Show more

    skills/mapbox-google-maps-migration/AGENTS.md, line 158

    fetch(

    skills/mapbox-google-maps-migration/AGENTS.md, line 185

    fetch(

    skills/mapbox-google-maps-migration/references/directions-controls.md, line 33

    fetch(

    skills/mapbox-google-maps-migration/references/shapes-geocoding.md, line 178

    fetch(

    skills/mapbox-maplibre-migration/references/exclusive-features.md, line 18

    const response = await fetch(

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    scripts/eval.js, line 9

    // Load .env file if present

    scripts/eval.js, line 10

    if (existsSync('.env')) {

    scripts/eval.js, line 11

    for (const line of readFileSync('.env', 'utf-8').split('\n')) {

    Show more

    scripts/run-evals.js, line 82

    if (!process.env.ANTHROPIC_API_KEY) {

    skills/mapbox-google-maps-migration/AGENTS.md, line 318

    mapboxgl.accessToken = process.env.NEXT_PUBLIC_MAPBOX_TOKEN;

    skills/mapbox-maplibre-migration/AGENTS.md, line 68

    mapboxgl.accessToken = process.env.NEXT_PUBLIC_MAPBOX_TOKEN;

    skills/mapbox-maplibre-migration/AGENTS.md, line 209

    mapboxgl.accessToken = process.env.NEXT_PUBLIC_MAPBOX_TOKEN;

    skills/mapbox-maplibre-migration/AGENTS.md, line 215

    // Add .env to .gitignore

    skills/mapbox-maplibre-migration/SKILL.md, line 302

    mapboxgl.accessToken = process.env.VITE_MAPBOX_TOKEN;

    skills/mapbox-maplibre-migration/SKILL.md, line 304

    // Add to .env file (not committed to git)

    skills/mapbox-maplibre-migration/SKILL.md, line 307

    // Add .env to .gitignore

    skills/mapbox-maplibre-migration/SKILL.md, line 308

    echo ".env" >> .gitignore

    skills/mapbox-maplibre-migration/references/exclusive-features.md, line 60

    mapboxgl.accessToken = process.env.REACT_APP_MAPBOX_TOKEN;

    skills/mapbox-mcp-runtime-patterns/AGENTS.md, line 93

    env: { MAPBOX_ACCESS_TOKEN: process.env.MAPBOX_ACCESS_TOKEN }

    skills/mapbox-mcp-runtime-patterns/AGENTS.md, line 133

    env: { MAPBOX_ACCESS_TOKEN: process.env.MAPBOX_ACCESS_TOKEN }

    skills/mapbox-token-security/AGENTS.md, line 28

    // .env file committed to GitHub

  • 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

    evals/baseline.json, line 1

    {

  • Licence

    Pass

    A licence file is present (LICENSE.md).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit f71cd72b8d89. requests shell access. The manifest names this permission. runs a script at install time. can reach a host that is not written as a fixed address. can reach api.example.com. The description does not name that host. can reach api.mapbox.com. The description does not name that host. 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: f71cd72b8d8937b06db440538bd65559eb792c49

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Read how this letter is chosen