Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mcp Boilerplate Node

This provides some common code for creating a Model Context Protocol (MCP) server in Node.js.

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.

INSTALL_UNPINNED NETWORK_NO_FIXED_HOST SECRETS_PATH_UNCONFIRMED SECRETS_ENV_READ

Why this grade

  • INSTALL_UNPINNED Low

    Dependencies use a range or git URL with no lockfile.

    package.json, line 50 @mcp-use/inspector

  • NETWORK_NO_FIXED_HOST Low

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

    src/httpServer.spec.ts, line 48 return fetch(`http://127.0.0.1:${port}/mcp`, {

  • SECRETS_PATH_UNCONFIRMED Low

    The Secrets check reports a credential or environment file, but no quoted line shows a recognisable path.

    src/instrumentation.ts, line 55 headers: process.env.LOGFIRE_TOKEN

  • SECRETS_ENV_READ Note

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

    src/instrumentation.ts, line 55 headers: process.env.LOGFIRE_TOKEN

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

    Concern

    dependencies are not pinned.

    INSTALL_UNPINNED

    package.json, line 50

    @mcp-use/inspector

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    src/httpServer.spec.ts, line 48

    return fetch(`http://127.0.0.1:${port}/mcp`, {

    src/store.ts, line 22

    this.contents ??= this.fetch();

    src/http/mcp.spec.ts, line 39

    fetch(`http://127.0.0.1:${port}/mcp`, {

    Show more

    src/http/mcp.ts, line 127

    return perRequestHandler.fetch(request, options);

    src/http/postSpan.spec.ts, line 35

    fetch(`http://127.0.0.1:${port}/mcp`, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_UNCONFIRMED

    src/instrumentation.ts, line 55

    headers: process.env.LOGFIRE_TOKEN

    src/instrumentation.ts, line 56

    ? { Authorization: `Bearer ${process.env.LOGFIRE_TOKEN}` }

    src/instrumentation.ts, line 67

    headers: process.env.LOGFIRE_TOKEN

    Show more

    src/instrumentation.ts, line 68

    ? { Authorization: `Bearer ${process.env.LOGFIRE_TOKEN}` }

    .gitignore, line 1

    .claude/*.local.*

  • 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 3a9b7dbffe15. dependencies are not pinned. can reach a host that is not written as a fixed address. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 3a9b7dbffe15a5b354ec2865f2f715b525ec6d48

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