Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Shelfmark

Give AI agents the right context, not your entire filesystem.

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 dadd96c582ae, 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/shelfmark/cli.py, line 46 # key/cert extensions, id_rsa, backup codes, passports…). Matches become

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

    Concern

    can delete files.

    PERMISSION_DELETE_FILES

    src/shelfmark/refresh.py, line 151

    shutil.rmtree(self.dir)

    src/shelfmark/refresh.py, line 195

    shutil.rmtree(self.dir, ignore_errors=True)

  • 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/shelfmark/cli.py, line 45

    # Extra regexes for credential-like files (built-ins already cover .env,

    src/shelfmark/cli.py, line 46

    # key/cert extensions, id_rsa, backup codes, passports…). Matches become

    src/shelfmark/rules.py, line 70

    # * `.env` must be `(\.|$)`-terminated, not bare `$`: .env.production and

    Show more

    src/shelfmark/rules.py, line 71

    # .env.local hold live secrets and slip through otherwise.

    src/shelfmark/rules.py, line 75

    r"(^|/)\.env(\.|$)|\.env$"

    src/shelfmark/rules.py, line 77

    r"|(^|/)(id_rsa|id_ed25519|id_ecdsa|id_dsa)(\.|$)"

    src/shelfmark/rules.py, line 152

    ".sql", ".db", ".sqlite", ".log", ".map", ".env",

    src/shelfmark/rules.py, line 162

    r"brewfile|caddyfile|justfile|\.env|\.gitignore|\.dockerignore)",

  • Agent instructions

    Pass

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

  • Obfuscation

    Concern

    contains an encoded blob in a file that should be readable.

    OBFUSCATION_ENCODED_BLOB

    site/public/media/logo-mark.svg, line 1

    <svg version="1.1" xmlns="http://www.w3.org/2000/svg" style="display: block;" viewBox="0 0 2048 2048" width="1024" height="1024" preserveAspectRatio="none" xmlns:c2pa="http://c2pa.

  • 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 dadd96c582ae. can delete files. reads a credential or environment file. contains an encoded blob in a file that should be readable.

Date and source

Date checked:

View source

github.com

Commit graded: dadd96c582aedf349391f6537416dd00f1425d41

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen