Grades are a hygiene check, not a security guarantee.

Claude Code, Skill

Mckinsey Style Visualization Skill

Use when turning any content into clear, professional visualizations - board slides, reports, proposals, research summaries, training materials, technical diagrams, infographics, process flows, timelines, benchmarks, waterfall charts, or data-backed visual specs for any audience.

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 2e7981a62223.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST OBFUSCATION_ENCODED_BLOB

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    scripts/_interactive_audit_output.py, line 483 shutil.rmtree(backup)

  • NETWORK_NO_FIXED_HOST Low

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

    docs/site/js/chat-demo.js, line 152 const res = await fetch(new URL("decks-manifest.json", ARTIFACT).href);

  • OBFUSCATION_ENCODED_BLOB Low

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

    docs/site/artifacts/project-relay.interactive.html, line 1496 <div id="idrt-deck-data" hidden data-encoding="base64url-json-v1">eyJraW5kIjoiaW50ZXJhY3RpdmUtZGVjayIsImxhbmciOiJlbiIsImxvY2FsZSI6ImVuLVVTIiwic2xpZGVzIjpbeyJkaXNwbGF5IjpudWxsLCJzY2

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/_interactive_audit_output.py, line 483

    shutil.rmtree(backup)

    scripts/audit_interactive_deck.py, line 520

    shutil.rmtree(staging)

    scripts/audit_interactive_deck.py, line 524

    shutil.rmtree(staging)

    Show more

    scripts/scaffold_deck.py, line 128

    shutil.rmtree(dest_specs)

    scripts/validate_skill.py, line 393

    result = subprocess.run(

    scripts/validate_skill.py, line 471

    result = subprocess.run(

  • 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

    docs/site/js/chat-demo.js, line 152

    const res = await fetch(new URL("decks-manifest.json", ARTIFACT).href);

    docs/site/js/gallery.js, line 62

    const response = await fetch(MANIFEST_URL);

    docs/site/js/lightbox.js, line 41

    const response = await fetch(`${SPECS_BASE}${stem}.json`);

    Show more

    docs/site/js/try/llm.js, line 54

    const response = await fetch(ANTHROPIC_URL, {

    docs/site/js/try/py-render.js, line 23

    const res = await fetch(new URL(path, ARTIFACTS));

    docs/site/js/try/refs.js, line 13

    const res = await fetch(new URL(path, ARTIFACTS));

    docs/site/js/try/try.js, line 178

    const response = await fetch(new URL('../../artifacts/demo-deck.html', import.meta.url));

    docs/superpowers/plans/2026-08-06-landing-site.md, line 265

    - [ ] **Step 1: gallery.js** — `fetch("./site/artifacts/gallery-manifest.json")`, render responsive grid (`repeat(auto-fill, minmax(260px, 1fr))`) of `<img loading="lazy" src="./si

  • 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

    docs/site/artifacts/project-relay.interactive.html, line 1496

    <div id="idrt-deck-data" hidden data-encoding="base64url-json-v1">eyJraW5kIjoiaW50ZXJhY3RpdmUtZGVjayIsImxhbmciOiJlbiIsImxvY2FsZSI6ImVuLVVTIiwic2xpZGVzIjpbeyJkaXNwbGF5IjpudWxsLCJzY2

    examples/interactive-deck/deck.interactive.html, line 1496

    <div id="idrt-deck-data" hidden data-encoding="base64url-json-v1">eyJraW5kIjoiaW50ZXJhY3RpdmUtZGVjayIsImxhbmciOiJlbiIsImxvY2FsZSI6ImVuLVVTIiwic2xpZGVzIjpbeyJkaXNwbGF5IjpudWxsLCJzY2

  • 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 2e7981a62223. 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: 2e7981a622232006c100e088ded89c72709895da

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