Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Obsidian Mcp Brain

Agent skills and agents for working with an Obsidian vault through the obsidian-mcp-brain MCP server: reading PDFs and other binary files, and uploading local files.

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.

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.

    obsidian-mcp-brain/obsidian-mcp-brain.mjs, line 1353 await fs.unlink(dest).catch(() => {});

  • NETWORK_NO_FIXED_HOST Low

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

    docker/healthcheck.mjs, line 33 const res = await fetch(url, { signal: AbortSignal.timeout(4000) });

  • NETWORK_UNNAMED_HOST Low

    Calls a fixed host that the description does not name.

    docker/healthcheck.mjs, line 33 const res = await fetch(url, { signal: AbortSignal.timeout(4000) });

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    docs/install/install-docker.md, line 92 put both in a `.env` file next to the compose file:

  • SECRETS_ENV_READ Note

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

    mcp-shim/mcp-shim.mjs, line 31 const TOKEN = process.env.MCP_TOKEN ?? null;

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

    obsidian-mcp-brain/obsidian-mcp-brain.mjs, line 1353

    await fs.unlink(dest).catch(() => {});

    obsidian-mcp-brain/obsidian-mcp-brain.mjs, line 1359

    await fs.unlink(tmp).catch(() => {});

    obsidian-mcp-brain/obsidian-mcp-brain.mjs, line 1429

    await fs.unlink(candidate).catch(() => {});

    Show more

    obsidian-mcp-brain/obsidian-mcp-brain.mjs, line 1436

    await fs.unlink(trash).catch(() => {});

    obsidian-mcp-brain/obsidian-mcp-brain.mjs, line 1443

    await fs.unlink(trash).catch(() => {});

    obsidian-mcp-brain/obsidian-mcp-brain.mjs, line 1449

    await fs.unlink(trash).catch(() => {});

    obsidian-mcp-brain/obsidian-mcp-brain.mjs, line 1457

    await fs.unlink(tmp).catch(() => {});

    obsidian-mcp-brain/obsidian-mcp-brain.mjs, line 1506

    const discard = () => fs.unlink(stagePath).catch(() => {});

  • 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 api.github.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    docker/healthcheck.mjs, line 33

    const res = await fetch(url, { signal: AbortSignal.timeout(4000) });

    docker/smoke-test.mjs, line 57

    const res = await fetch(`http://127.0.0.1:${PORT}/mcp`, {

    docker/smoke-test.mjs, line 118

    const discovery = await fetch(`http://127.0.0.1:${PORT}/.well-known/oauth-protected-resource`);

    Show more

    mcp-shim/mcp-shim.mjs, line 103

    const req = https.request(

    mcp-shim/mcp-shim.mjs, line 115

    const n = https.request({ hostname, port: port || 443, path: pathname, method: "POST",

    mcp-shim/mcp-shim.mjs, line 143

    const req = https.request(

    mcp-shim/mcp-shim.mjs, line 200

    const req = https.request({

    mcp-shim/mcp-shim.mjs, line 224

    const req = https.request(

    obsidian-mcp-brain/obsidian-mcp-brain.mjs, line 709

    + 'The result is a URL and a ready-to-run command: `curl --fail-with-body -sS -T <file> <url>`. '

    obsidian-mcp-brain/obsidian-mcp-brain.mjs, line 714

    + 'If the upload-file skill is installed, use its upload-file.sh script, which does the hashing and the curl call for you; get-setup-status says how to install it. '

    docs/install/install-cloudflare-oauth.md, line 274

    const tokenResponse = await fetch('https://github.com/login/oauth/access_token', {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    mcp-shim/mcp-shim.mjs, line 31

    const TOKEN = process.env.MCP_TOKEN ?? null;

    docs/install/install-docker.md, line 92

    put both in a `.env` file next to the compose file:

    docs/install/install-docker.md, line 95

    printf 'UID=%s\nGID=%s\n' "$(id -u)" "$(id -g)" > .env

  • 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.

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Note

Hygiene check of commit 031669a1a7e3. can delete files. can reach a host that is not written as a fixed address. can reach api.github.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: 031669a1a7e3ab2f7910ef2a1f52a5c517b8c96c

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