Grades are a hygiene check, not a security guarantee.

MCP, MCP server

koralpaper

Draw your thinking. A free, offline sketch studio where Claude draws with you: hand-drawn diagrams, sticky-note boards, LinkedIn carousels, charts from pasted data, and stop-motion time-lapse animations.

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.

OBFUSCATION_MINIFIED_PAYLOAD

Why this grade

  • OBFUSCATION_MINIFIED_PAYLOAD Medium

    Contains a very long line with almost no spaces in a script or style file.

    docs/shots/08-present.webm, line 1 Eߣ�B��B��B�B�B��webmB��B��S�g

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

    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 fonts.gstatic.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    sw.js, line 38

    fetch(e.request).then(res => {

    mcp/server.js, line 177

    const req = http.request({

    js/app.js, line 3580

    return fetch(`https://fonts.gstatic.com/s/i/short-term/release/materialsymbolsoutlined/${name}/default/24px.svg`)

    Show more

    js/app.js, line 8945

    const s = await fetch(CLAUDE_BRIDGE + '/status');

    js/app.js, line 8948

    const r = await fetch(CLAUDE_BRIDGE + '/poll', { headers: { 'X-Koralpaper': '1' } });

    js/app.js, line 8955

    await fetch(CLAUDE_BRIDGE + '/result', {

  • 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 a minified payload.

    OBFUSCATION_MINIFIED_PAYLOAD

    docs/shots/08-present.webm, line 1

    Eߣ�B��B��B�B�B��webmB��B��S�g

    js/app.js, line 1

    /* KoralPaper - app layer: input, selection, snapping, history, UI. */

    js/material-icons.js, line 2

    const MATERIAL_ICONS = "search|browse,circle,discover,discover icon,explore,explore icon,filter,find,find icon,glass,handle,inspect\nhome|abode,address,app,application--house,archi

  • 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 53799d3b652e. can reach a host that is not written as a fixed address. can reach fonts.gstatic.com. The description does not name that host. contains a minified payload.

Date and source

Date checked:

View source

github.com

Commit graded: 53799d3b652e07ba3e6f477987f97cfa0ff6900e

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