Grades are a hygiene check, not a security guarantee.

Claude Code, Skill

Hand Drawn Diagrams

Create hand-drawn Excalidraw diagrams, flows, explainers, wireframes, and page mockups.

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 c8ffd6c3febb, unchanged since the check below.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST OBFUSCATION_ENCODED_BLOB

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    installscripts/install.py, line 61 completed = subprocess.run(

  • NETWORK_NO_FIXED_HOST Low

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

    scripts/local_excalidraw_server.py, line 109 with urllib.request.urlopen(

  • OBFUSCATION_ENCODED_BLOB Low

    Contains a long base64 shaped string in a file that should be readable.

    assets/diagram.animated.svg, line 1 <svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1040 895" width="1040" height="895"><!-- svg-source:excalidraw --><metadata/><defs><style class="style-fonts">

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

    installscripts/install.py, line 61

    completed = subprocess.run(

    installscripts/install.py, line 83

    completed = subprocess.run([uv_cmd, "--version"], capture_output=True, text=True, check=False)

    installscripts/install.py, line 93

    result = subprocess.run(

    Show more

    installscripts/install.py, line 107

    result = subprocess.run(

    installscripts/install.py, line 188

    shutil.rmtree(destination)

    installscripts/uninstall.py, line 54

    shutil.rmtree(destination)

    scripts/open_diagram.py, line 117

    result = subprocess.run(

    scripts/open_diagram.py, line 131

    result = subprocess.run(

    scripts/open_diagram.py, line 155

    subprocess.run(["open", str(out)], check=False)

    scripts/open_diagram.py, line 157

    subprocess.run(["start", str(out)], shell=True, check=False)

  • 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

    scripts/local_excalidraw_server.py, line 109

    with urllib.request.urlopen(

  • Secrets

    Pass

    No read of a credential file or secret environment variable found.

  • Agent instructions

    Pass

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

  • Obfuscation

    Concern

    contains an encoded blob in a file that should be readable.

    OBFUSCATION_ENCODED_BLOB

    assets/diagram.animated.svg, line 1

    <svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1040 895" width="1040" height="895"><!-- svg-source:excalidraw --><metadata/><defs><style class="style-fonts">

    assets/thermal-physics-exam-revision.animated.svg, line 1

    <svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1270 832" width="1270" height="832"><!-- svg-source:excalidraw --><metadata/><defs><style class="style-fonts">

    assets/diagram.animated.svg, line 2

    @font-face { font-family: Virgil; src: url(data:font/woff2;base64,d09GMgABAAAAACK8AAsAAAAAN5AAACJuAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAABmAAgSQRCArkMMosC3YAATYCJAOBaAQgBYMcByAbVSmjoobRXi

    Show more

    assets/thermal-physics-exam-revision.animated.svg, line 2

    @font-face { font-family: Virgil; src: url(data:font/woff2;base64,d09GMgABAAAAACKIAAsAAAAANtwAACI6AAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAABmAAgRQRCArjDMkXC3YAATYCJAOBaAQgBYMcByAbsCgjA8HGAQ

  • 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 c8ffd6c3febb. can delete files. can reach a host that is not written as a fixed address. contains an encoded blob in a file that should be readable.

Date and source

Date checked:

View source

github.com

Commit graded: c8ffd6c3febbc0e745ab6691ea81c8703a9829c8

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