Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Duckdb Mcp Server

A Model Context Protocol (MCP) server that gives AI assistants full access to DuckDB — query local files, S3 buckets, and in-memory data using plain SQL.

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 1bf986977173, 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/duckdb_mcp_server/config.py, line 28 """Named AWS profile from ~/.aws/credentials. If None, the automatic credential chain is used."""

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_CREDENTIAL

    src/duckdb_mcp_server/config.py, line 28

    """Named AWS profile from ~/.aws/credentials. If None, the automatic credential chain is used."""

    src/duckdb_mcp_server/config.py, line 63

    help="AWS named profile to use from ~/.aws/credentials (default: AWS_PROFILE env var; "

    src/duckdb_mcp_server/credentials.py, line 30

    2. ``--s3-profile NAME`` - reads a named profile from ~/.aws/credentials using

    Show more

    src/duckdb_mcp_server/credentials.py, line 35

    ~/.aws/credentials (default profile), ~/.aws/config, EC2 instance

    src/duckdb_mcp_server/credentials.py, line 64

    key_id = os.getenv("AWS_ACCESS_KEY_ID")

    src/duckdb_mcp_server/credentials.py, line 65

    secret = os.getenv("AWS_SECRET_ACCESS_KEY")

    src/duckdb_mcp_server/credentials.py, line 75

    session_token = os.getenv("AWS_SESSION_TOKEN")

    src/duckdb_mcp_server/credentials.py, line 98

    Create an S3 secret using a named AWS profile from ~/.aws/credentials.

    src/duckdb_mcp_server/credentials.py, line 118

    environment variables, ~/.aws/credentials & ~/.aws/config (default

    .gitignore, line 34

    # Environment variables

    README.md, line 185

    2. Named profile (`--s3-profile`): reads `~/.aws/credentials`

  • 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 1bf986977173. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 1bf986977173a82c7f2dc7869597c3b7be261757

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Read how this letter is chosen