Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Database Mcp

MCP servers that give AI clients safe, structured access to SQL databases.

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.

SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED NETWORK_LOCALHOST SECRETS_ENV_READ

Why this grade

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .gitignore, line 12 .env

  • PERMISSION_SHELL_DECLARED Note

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

    core/python/src/database_mcp_core/isolated.py, line 25 self._proc: subprocess.Popen[str] | None = None

  • NETWORK_LOCALHOST Note

    Calls localhost only.

    conformance/run.mjs, line 111 await fetch(`http://127.0.0.1:${port}/mcp`);

  • SECRETS_ENV_READ Note

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

    conformance/run.mjs, line 64 password: process.env.POSTGRES_PASSWORD ?? "mcp-password",

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

    core/python/src/database_mcp_core/isolated.py, line 25

    self._proc: subprocess.Popen[str] | None = None

    core/python/src/database_mcp_core/isolated.py, line 47

    proc = subprocess.Popen(

  • Install and update

    Pass

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

  • Network

    Note

    can reach localhost.

    NETWORK_LOCALHOST

    conformance/run.mjs, line 111

    await fetch(`http://127.0.0.1:${port}/mcp`);

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    conformance/run.mjs, line 64

    password: process.env.POSTGRES_PASSWORD ?? "mcp-password",

    .gitignore, line 11

    # env + secrets

    .gitignore, line 12

    .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 775af94a2ae1. requests shell access. The manifest names this permission. can reach localhost. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 775af94a2ae1cbba9031984491620a36a1efc840

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Read how this letter is chosen