Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Langextract Mcp

A FastMCP server for Google's langextract library.

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 d671c312873c, unchanged since the check below.

SECRETS_PATH_DOTENV SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .gitignore, line 148 .env.local

  • SECRETS_ENV_READ Note

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

    src/langextract_mcp/server.py, line 198 return os.environ.get("LANGEXTRACT_API_KEY")

  • OBFUSCATION_FILE_OVER_READ_CAP Note

    A file was over the read cap and was not fully read.

    uv.lock, line 1 version = 1

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_DOTENV

    src/langextract_mcp/server.py, line 198

    return os.environ.get("LANGEXTRACT_API_KEY")

    .gitignore, line 98

    # Environments

    .gitignore, line 148

    .env.local

    Show more

    .gitignore, line 147

    # API keys and sensitive info

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Note

    a file was over the read cap and was not fully read.

    OBFUSCATION_FILE_OVER_READ_CAP

    uv.lock, line 1

    version = 1

  • 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.

    2025-08-06T10:50:05-07:00

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Note

Hygiene check of commit d671c312873c. reads a credential or environment file. a file was over the read cap and was not fully read. the latest commit is more than 365 days old.

Date and source

Date checked:

View source

github.com

Commit graded: d671c312873cd477064ab027f3bb1cebab9c791b

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Read how this letter is chosen