Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Excalidraw Room Mcp

An MCP server that joins a live Excalidraw collaboration room as a participant.

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.

NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • NETWORK_NO_FIXED_HOST Low

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

    src/firebase.ts, line 63 const res = await fetch(docUrl(roomId));

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    src/firebase.ts, line 7 * `.env.production` of github.com/excalidraw/excalidraw (commit

  • SECRETS_ENV_READ Note

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

    src/firebase.test.ts, line 96 apiKey: process.env.EXCALIDRAW_FIREBASE_API_KEY,

  • OBFUSCATION_FILE_OVER_READ_CAP Note

    A file was over the read cap and was not fully read.

    package-lock.json, line 1 {

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.

    NETWORK_NO_FIXED_HOST

    src/firebase.ts, line 63

    const res = await fetch(docUrl(roomId));

    src/firebase.ts, line 98

    const res = await fetch(docUrl(roomId, precondition), {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    src/firebase.test.ts, line 96

    apiKey: process.env.EXCALIDRAW_FIREBASE_API_KEY,

    src/firebase.test.ts, line 101

    delete process.env.EXCALIDRAW_FIREBASE_API_KEY;

    src/firebase.ts, line 7

    * `.env.production` of github.com/excalidraw/excalidraw (commit

    Show more

    src/firebase.test.ts, line 107

    process.env.EXCALIDRAW_FIREBASE_API_KEY = "

    src/firebase.test.ts, line 115

    if (before.apiKey === undefined) delete process.env.EXCALIDRAW_FIREBASE_API_KEY;

    src/firebase.test.ts, line 116

    else process.env.EXCALIDRAW_FIREBASE_API_KEY = before.apiKey;

    src/firebase.ts, line 30

    const apiKey = process.env.EXCALIDRAW_FIREBASE_API_KEY ?? DEFAULT_API_KEY;

    .assess/assess-report.md, line 113

    | 8: AI Project Mgmt (capstone) | Do learnings feed back into the contracts, or evaporate? | meta | Missing | Tracked `.claude/settings.json` (20 allow, 2 deny on `.env` reads). No

    .claude/settings.json, line 26

    "Read(./.env)",

    .claude/settings.json, line 27

    "Read(./.env.*)"

    .gitignore, line 8

    *.log

    CLAUDE.md, line 41

    - **The Firebase project id and API key in `src/firebase.ts` are not a leaked secret.** They are excalidraw.com's public web client configuration, copied from upstream `.env.produc

    src/staged-stdio.test.ts, line 35

    env: { ...process.env, ...env } as Record<string, string>,

  • 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).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit a155cbea631f. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: a155cbea631f987a71d6a5425d2a288b80c37378

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