Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Google Workspace Mcp

Give your AI agent real access to Google Workspace — Gmail, Calendar, Drive, Docs, Sheets, Tasks, Meet and Contacts — from one MCP server, across as many accounts as you have.

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 9c9f8033a65c, unchanged since the check below.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    src/accounts/credentials.ts, line 74 await fs.unlink(credentialPath(email));

  • NETWORK_NO_FIXED_HOST Low

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

    docs/design-notes/adr-103-discovery-dispatcher-spike.mjs, line 14 const res = await fetch(`https://www.googleapis.com/discovery/v1/apis/${service}/${version}/rest`);

  • NETWORK_UNNAMED_HOST Low

    Calls a fixed host that the description does not name.

    docs/design-notes/adr-103-discovery-dispatcher-spike.mjs, line 14 const res = await fetch(`https://www.googleapis.com/discovery/v1/apis/${service}/${version}/rest`);

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .gitignore, line 13 .env

  • SECRETS_ENV_READ Note

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

    src/server/handlers/accounts.ts, line 160 const clientSecret = process.env.GOOGLE_CLIENT_SECRET;

  • OBFUSCATION_FILE_OVER_READ_CAP Note

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

    docs/api-surface.md, line 1 # The Google API surface

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

    src/accounts/credentials.ts, line 74

    await fs.unlink(credentialPath(email));

    src/server/handlers/workspace.ts, line 199

    await fs.unlink(filePath);

    src/server/handlers/workspace.ts, line 224

    await fs.rm(filePath, { recursive: true });

    Show more

    src/server/handlers/workspace.ts, line 231

    await fs.unlink(filePath);

    src/server/scratchpad/adapters/import-doc.ts, line 82

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

    src/services/drive/patch.ts, line 372

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

    docs/scripts/adr, line 44

    result = subprocess.run(

    docs/scripts/adr, line 142

    result = subprocess.run(

    docs/scripts/adr, line 151

    result = subprocess.run(

    docs/scripts/adr, line 402

    return subprocess.run(cmd, shell=True).returncode

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach www.googleapis.com. The description does not name that host. can reach a host that is not written as a fixed address. can reach gmail.googleapis.com. The description does not name that host. can reach registry.modelcontextprotocol.io. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    docs/design-notes/adr-103-discovery-dispatcher-spike.mjs, line 14

    const res = await fetch(`https://www.googleapis.com/discovery/v1/apis/${service}/${version}/rest`);

    docs/design-notes/adr-103-discovery-dispatcher-spike.mjs, line 79

    const res = await fetch(req.url, {

    docs/design-notes/adr-103-media-roundtrip-spike.mjs, line 29

    const res = await fetch(`https://www.googleapis.com/discovery/v1/apis/${service}/${version}/rest`);

    Show more

    docs/design-notes/adr-103-media-roundtrip-spike.mjs, line 58

    const init = await fetch(initiateUrl, {

    docs/design-notes/adr-103-media-roundtrip-spike.mjs, line 73

    const res = await fetch(session, {

    docs/design-notes/adr-103-media-roundtrip-spike.mjs, line 124

    const gres = await fetch(`${GMAIL}/drafts/${draft.id}?format=full`, {

    docs/design-notes/adr-103-media-roundtrip-spike.mjs, line 132

    const ares = await fetch(

    docs/design-notes/adr-103-media-roundtrip-spike.mjs, line 147

    const d = await fetch(`${GMAIL}/drafts/${draft.id}`, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    src/server/handlers/accounts.ts, line 160

    const clientSecret = process.env.GOOGLE_CLIENT_SECRET;

    src/server/handlers/accounts.ts, line 239

    const clientSecret = process.env.GOOGLE_CLIENT_SECRET;

    .gitignore, line 13

    .env

    Show more

    .gitignore, line 12

    # Environment

  • 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

    docs/api-surface.md, line 1

    # The Google API surface

    src/google/descriptor.json, line 1

    {

  • 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 9c9f8033a65c. can delete files. can reach www.googleapis.com. The description does not name that host. can reach a host that is not written as a fixed address. can reach gmail.googleapis.com. The description does not name that host. can reach registry.modelcontextprotocol.io. The description does not name that host. 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: 9c9f8033a65ca482f039e3f4ec8c82db9a7f7782

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