Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Suno Hmnn Mcp

A local Model Context Protocol server for connecting Suno music workflows with AI clients and developer tools.

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 SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED SECRETS_ENV_READ

Why this grade

  • INSTALL_UNPINNED Low

    Dependencies use a range or git URL with no lockfile.

    requirements.txt, line 1 fastmcp>=0.1.0

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    wizard.py, line 88 env_path = Path(__file__).parent / ".env"

  • PERMISSION_SHELL_DECLARED Note

    Runs shell commands, and the manifest or description says so.

    wizard.py, line 14 os.system('cls' if os.name == 'nt' else 'clear')

  • SECRETS_ENV_READ Note

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

    core/auth.py, line 24 self.jwt_token = os.getenv("SUNO_SESSION_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

    Note

    requests shell access. The manifest names this permission.

    PERMISSION_SHELL_DECLARED

    wizard.py, line 14

    os.system('cls' if os.name == 'nt' else 'clear')

  • Install and update

    Concern

    dependencies are not pinned.

    INSTALL_UNPINNED

    requirements.txt, line 1

    fastmcp>=0.1.0

  • Network

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    wizard.py, line 88

    env_path = Path(__file__).parent / ".env"

    wizard.py, line 122

    # We force the auth manager to reload from the newly written .env

    core/auth.py, line 24

    self.jwt_token = os.getenv("SUNO_SESSION_TOKEN", "")

    Show more

    core/auth.py, line 9

    # Load the .env file automatically from the project root directory

    core/auth.py, line 10

    env_path = Path(__file__).parent.parent / ".env"

    core/auth.py, line 20

    env_path = Path(__file__).parent.parent / ".env"

    .gitignore, line 2

    *.pyc

    .gitignore, line 3

    .env

    .gitignore, line 5

    !.env.example

  • 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.

Get the full report on this tool, £49

Note

Hygiene check of commit 16852413af56. requests shell access. The manifest names this permission. dependencies are not pinned. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 16852413af568dea1f5fb3dbfd3f7b10c646e60e

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