Grades are a hygiene check, not a security guarantee.

Claude Code, Skill

Maplibre Agent Skills

Curated guidance for AI assistants building MapLibre applications — covering ecosystem and open-source best practices.

Compatibility: Not stated.

Grade C

One Medium finding. Read the report before installing.

Graded by PlugVetRubric v2

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

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 24 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

    Pass

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

  • Install and update

    Concern

    runs a script at install time. The docs document an installer that pipes a download into a shell.

    INSTALL_LIFECYCLE_HOOK INSTALL_DOCUMENTED_INSTALLER

    package.json, line 24

    postinstall

    evals/results/latest/maplibre-fonts-glyphs-baseline-tests-3-4-5_2026-10-26.csv, line 1178

    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

    evals/results/latest/maplibre-fonts-glyphs-baseline-tests-3-4-5_2026-10-26.csv, line 1354

    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

  • Network

    Concern

    can reach a host that is not written as a fixed address. can reach api.github.com. The description does not name that host. can reach api.groq.com. The description does not name that host. can reach api.mapbox.com. The description does not name that host. can reach photon.komoot.io. The description does not name that host. can reach nominatim.openstreetmap.org. The description does not name that host. can reach api.geocode.e. The description does not name that host. can reach username.github.io.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST NETWORK_NAMED_HOST

    scripts/merged-pr.js, line 44

    const res = await fetch(

    scripts/release-watch.js, line 82

    const res = await fetch(`https://api.github.com${path}`, {

    scripts/run-evals.js, line 398

    return await fetch(GROQ_CHAT, {

    Show more

    scripts/run-evals.js, line 519

    const response = await fetch(`${GEMINI}/${model}:generateContent`, {

    skills/maplibre-pmtiles-patterns/SKILL.md, line 101

    fetch(params.url)

    skills/maplibre-pmtiles-patterns/SKILL.md, line 110

    const response = await fetch(params.url, { signal: abortController.signal });

    skills/maplibre-running-evals/SKILL.md, line 24

    curl -s -X POST https://api.groq.com/openai/v1/chat/completions \

    evals/results/2026-09-06-maplibre-mapbox-migration.csv, line 850

    fetch(url)

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    scripts/release-watch.js, line 71

    const fromEnv = process.env.GH_TOKEN || process.env.GITHUB_TOKEN;

    scripts/run-evals.js, line 324

    ...env,

    scripts/run-evals.js, line 1014

    ...env,

    Show more

    scripts/run-evals.js, line 1488

    : await measureLimits({ pin, apiKey: process.env.GROQ_API_KEY });

    scripts/run-evals.js, line 1499

    process.env.EVAL_TOKENS_PER_DAY || TOKENS_PER_DAY_DEFAULT

    scripts/run-evals.js, line 1540

    ? await daySpent({ pin, apiKey: process.env.GROQ_API_KEY })

    evals/results/latest/maplibre-v6-migration-setworkerurl-baseline_2026-08-25.csv, line 129

    | `import.meta.env.VITE_MAP_STYLE` | Vite’s way to read environment variables at **build time**. You can set it in a `.env` file (see below). |

    evals/results/latest/maplibre-v6-migration-setworkerurl-baseline_2026-08-25.csv, line 138

    Create a file called **`.env`** in the project root:

    evals/results/latest/maplibre-v6-migration-setworkerurl-baseline_2026-08-25.csv, line 141

    # .env

    evals/results/latest/maplibre-v6-migration-setworkerurl-baseline_2026-08-25.csv, line 150

    You can also create `.env.production` and `.env.development` to have different styles per environment.

    evals/results/latest/maplibre-v6-migration-setworkerurl-baseline_2026-08-25.csv, line 215

    **`.env`**

  • 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

    package-lock.json, line 1

    {

  • Licence

    Pass

    A licence file is present (LICENSE.md).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Note

Hygiene check of commit 6acfea707c8d. runs a script at install time. The docs document an installer that pipes a download into a shell. can reach a host that is not written as a fixed address. can reach api.github.com. The description does not name that host. can reach api.groq.com. The description does not name that host. can reach api.mapbox.com. The description does not name that host. can reach photon.komoot.io. The description does not name that host. can reach nominatim.openstreetmap.org. The description does not name that host. can reach api.geocode.e. The description does not name that host. can reach username.github.io. reads a credential or environment file. a file wa

Date and source

Date checked:

View source

github.com

Commit graded: 6acfea707c8d6a1f6028656db24dd959c2959563

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