Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Google Tag Manager Mcp Server

An interface to the Google Tag Manager API over MCP, in two flavours: a hosted server with Google OAuth built in, and a local CLI that runs on your own credentials.

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 faa10a5b9f5f.

NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_PATH_DOTENV 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.

    apps/worker/src/index.ts, line 125 async fetch(request: Request, env: Env, ctx: ExecutionContext) {

  • NETWORK_UNNAMED_HOST Low

    Calls a fixed host that the description does not name.

    apps/worker/src/index.ts, line 125 async fetch(request: Request, env: Env, ctx: ExecutionContext) {

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .gitignore, line 109 .env

  • 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. can reach oauth2.googleapis.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    apps/worker/src/index.ts, line 125

    async fetch(request: Request, env: Env, ctx: ExecutionContext) {

    apps/worker/src/index.ts, line 170

    : await provider.fetch(request, env, ctx);

    apps/worker/src/mcpHandler.ts, line 84

    // its `.fetch(request, requestOptions)` property, which never sees `ctx`

    Show more

    apps/worker/src/tools/removeMCPServerData.ts, line 64

    await fetch("https://oauth2.googleapis.com/revoke", {

    apps/worker/src/utils/apisHandler.ts, line 142

    const userResponse = await fetch(

    apps/worker/src/utils/authorizeUtils.ts, line 91

    const resp = await fetch(upstreamUrl, {

    apps/worker/src/utils/authorizeUtils.ts, line 133

    const resp = await fetch(upstreamUrl, {

    packages/core/src/auth/tokenCache.ts, line 51

    const response = await fetch(tokenUrl, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    .gitignore, line 109

    .env

  • 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

    {

    apps/worker/worker-configuration.d.ts, line 1

    /* eslint-disable */

  • 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 faa10a5b9f5f. can reach a host that is not written as a fixed address. can reach oauth2.googleapis.com. 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: faa10a5b9f5f3a7869eee176f7d9308fcdc066a7

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