Grades are a hygiene check, not a security guarantee.

MCP, MCP server

io.github.adigold/tracktag-mcp

Let AI agents (Claude Desktop, Claude Code, Cursor, and any MCP-capable client) analyze music with TrackTag: drop an MP3 into your agent, say "analyze this track", and get BPM, key, genres, moods, instruments, energy and 35+ metadata fields back.

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_ENV_READ

Why this grade

  • INSTALL_UNPINNED Low

    Dependencies use a range or git URL with no lockfile.

    package.json, line 39 @modelcontextprotocol/sdk

  • NETWORK_NO_FIXED_HOST Low

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

    src/index.ts, line 39 const res = await fetch(`${API_BASE}${path}`, {

  • SECRETS_ENV_READ Note

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

    src/index.ts, line 19 const API_KEY = process.env.TRACKTAG_API_KEY;

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 39

    @modelcontextprotocol/sdk

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    src/index.ts, line 39

    const res = await fetch(`${API_BASE}${path}`, {

  • Secrets

    Note

    reads an environment variable.

    SECRETS_ENV_READ

    src/index.ts, line 19

    const API_KEY = process.env.TRACKTAG_API_KEY;

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Note

    no licence file found.

    LICENCE_MISSING

    No file path was stored.

    no licence file found.

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

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Note

Hygiene check of commit e04c784947fe. dependencies are not pinned. can reach a host that is not written as a fixed address. reads an environment variable. no licence file found.

Date and source

Date checked:

View source

github.com

Commit graded: e04c784947fe51e242a740389da5284cc7c80327

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Read how this letter is chosen