Grades are a hygiene check, not a security guarantee.

MCP, MCP server

io.github.NyxToolsDev/calendly-mcp-server

io.github.NyxToolsDev/calendly-mcp-server, an MCP server listed in the PlugVet directory.

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 31b99090f1a4, unchanged since the check below.

SECRETS_PATH_UNCONFIRMED SECRETS_ENV_READ

Why this grade

  • SECRETS_PATH_UNCONFIRMED Low

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

    src/calendly_mcp/config.py, line 74 calendly_access_token=os.environ.get("CALENDLY_ACCESS_TOKEN", ""),

  • SECRETS_ENV_READ Note

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

    src/calendly_mcp/config.py, line 74 calendly_access_token=os.environ.get("CALENDLY_ACCESS_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

    Pass

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

  • Network

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_UNCONFIRMED

    src/calendly_mcp/config.py, line 74

    calendly_access_token=os.environ.get("CALENDLY_ACCESS_TOKEN", ""),

    src/calendly_mcp/config.py, line 75

    license_key=os.environ.get("LICENSE_KEY") or None,

    .gitignore, line 17

    env/

  • 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 31b99090f1a4. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 31b99090f1a4aa0a3c4c8208731c1393787ebacb

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Read how this letter is chosen