Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Claude Google Sheets Mcp

A comprehensive Model Context Protocol (MCP) server for Google Sheets integration with Claude.

Compatibility: Not stated.

Grade C

One Medium finding. Read the findings 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 90d520cb9018, unchanged since the check below.

SECRETS_PATH_CREDENTIAL

Why this grade

  • SECRETS_PATH_CREDENTIAL Medium

    Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).

    src/claude_google_sheets/setup.py, line 93 credentials_path = os.path.join(self.credentials_dir, "credentials.json")

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

    src/claude_google_sheets/setup.py, line 219

    if os.system("gcloud --version > /dev/null 2>&1") != 0:

    src/claude_google_sheets/setup.py, line 224

    if os.system("gcloud auth list --filter=status:ACTIVE --format='value(account)' | head -1 > /dev/null 2>&1") != 0:

  • 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_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    src/claude_google_sheets/setup.py, line 93

    credentials_path = os.path.join(self.credentials_dir, "credentials.json")

    src/claude_google_sheets/setup.py, line 104

    click.echo("5. Download credentials.json")

    src/claude_google_sheets/setup.py, line 111

    click.echo(f"📁 Save your credentials.json file to: {credentials_path}")

    Show more

    src/claude_google_sheets/setup.py, line 114

    click.pause("Press any key after saving credentials.json...")

    src/claude_google_sheets/auth/oauth_manager.py, line 166

    credentials_path = os.path.join(self.credentials_dir, "credentials.json")

    .gitignore, line 50

    credentials.json

    .gitignore, line 52

    service-account.json

    .gitignore, line 53

    .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

    Note

    the latest commit is more than 365 days old.

    MAINTAINER_STALE

    No file path was stored.

    2025-09-26T21:33:19-05:00

Get the full report on this tool, £49

Note

Hygiene check of commit 90d520cb9018. requests shell access. The manifest names this permission. reads a credential or environment file. the latest commit is more than 365 days old.

Date and source

Date checked:

View source

github.com

Commit graded: 90d520cb9018b7a658710cc1803d62071e3e1ee3

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Read how this letter is chosen