Grades are a hygiene check, not a security guarantee.

Claude Code, Skill

MatStudyLab

Structured MATLAB workspace for optical lab technicians — optometrists and imaging specialists who need reliable scripts and want to learn programming along the way.

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.

Rescanned at commit 0c2e6915a2a9, unchanged since the check below.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    scripts/lib/accept_bundle.py, line 241 shutil.rmtree(destination)

  • NETWORK_NO_FIXED_HOST Low

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

    .agents/skills/tdd/mocking.md, line 44 getUser: (id) => fetch(`/users/${id}`),

  • NETWORK_UNNAMED_HOST Low

    Calls a fixed host that the description does not name.

    .agents/skills/tdd/mocking.md, line 44 getUser: (id) => fetch(`/users/${id}`),

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .agents/skills/wizard/template.sh, line 98 # ask KEY "Prompt" - read a value into $KEY. Offers the existing .env value as

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    .agents/skills/tdd/mocking.md, line 32 const client = new StripeClient(process.env.STRIPE_KEY);

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

    Concern

    can delete files.

    PERMISSION_DELETE_FILES

    scripts/lib/accept_bundle.py, line 241

    shutil.rmtree(destination)

    scripts/lib/accept_bundle.py, line 247

    shutil.rmtree(source)

    scripts/lib/e2e_pipeline.py, line 51

    shutil.rmtree(destination)

    Show more

    scripts/lib/modify_bundle.py, line 47

    shutil.rmtree(destination)

  • 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. can reach raw.githubusercontent.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    .agents/skills/tdd/mocking.md, line 44

    getUser: (id) => fetch(`/users/${id}`),

    .agents/skills/tdd/mocking.md, line 45

    getOrders: (userId) => fetch(`/users/${userId}/orders`),

    .agents/skills/tdd/mocking.md, line 46

    createOrder: (data) => fetch('/orders', { method: 'POST', body: data }),

    Show more

    .agents/skills/tdd/mocking.md, line 51

    fetch: (endpoint, options) => fetch(endpoint, options),

    docs/agents/skills-node-os-checklist.md, line 25

    /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    .agents/skills/tdd/mocking.md, line 32

    const client = new StripeClient(process.env.STRIPE_KEY);

    .agents/skills/wizard/template.sh, line 26

    ENV_FILE="${ENV_FILE:-.env}"

    .agents/skills/wizard/template.sh, line 98

    # ask KEY "Prompt" - read a value into $KEY. Offers the existing .env value as

    Show more

    .agents/skills/ask-matt/SKILL.md, line 83

    - **`/wizard`** - for the steps only a **human** can take: provisioning infrastructure, setting up credentials or CI secrets, clicking through an unfamiliar third-party dashboard,

    .agents/skills/wizard/SKILL.md, line 8

    A **wizard** is a bash script that walks a human, step by step, through a manual procedure that's tedious to do by hand and tedious to re-explain to an AI every time. It opens each

    .agents/skills/wizard/SKILL.md, line 10

    The delightful UX is already solved by [template.sh](template.sh) - stage-by-stage progress, confirmation gates, cross-platform URL opening (including WSL), hidden secret entry, id

    .agents/skills/wizard/SKILL.md, line 20

    - For setup: `.env`, `.env.example`, `.env.*`, `README`, `docker-compose*`, framework config, and `.github/workflows/*` (every `secrets.*` / `vars.*` reference is a value the wizar

    .agents/skills/wizard/SKILL.md, line 25

    **Done when:** every stage is named in order, and for each captured value you know (a) where the human gets it, (b) where it's written (`.env`, a GitHub secret, both, or nowhere -

  • 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.

Note

Hygiene check of commit 0c2e6915a2a9. can delete files. can reach a host that is not written as a fixed address. can reach raw.githubusercontent.com. The description does not name that host. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 0c2e6915a2a921ab70df10daaec5bdf3813ee37c

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