Grades are a hygiene check, not a security guarantee.

Claude Code, Skill

Agent Engineering Toolkit

Open-source engineering skills for repository work, Python, host-native MARGOS orchestration, ReThinking audits, and Agent Plugins authoring.

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.

NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED SECRETS_ENV_READ

Why this grade

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    skills/margos/scripts/margos_reflex_jev.py, line 651 with urllib.request.urlopen(request, timeout=timeout) as response:

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    scripts/validate_repository.py, line 69 if f.name in {'.env'} or f.suffix.lower() in {'.pem','.key','.p12','.pfx'}: errors.append(f'unsafe tracked file: {f.relative_to(ROOT)}')

  • PERMISSION_SHELL_DECLARED Note

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

    scripts/benchmark_margos_jev_verification.py, line 127 return subprocess.check_output(["git", "rev-parse", "HEAD"], cwd=ROOT, text=True).strip()

  • SECRETS_ENV_READ Note

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

    scripts/benchmark_margos_context.py, line 680 if not os.environ.get("TYPESAFE_API_KEY"):

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

    scripts/benchmark_margos_jev_verification.py, line 127

    return subprocess.check_output(["git", "rev-parse", "HEAD"], cwd=ROOT, text=True).strip()

    scripts/build_release.py, line 8

    def build(out): subprocess.run([sys.executable,str(BUILDER),str(ROOT),'--out',str(out.relative_to(ROOT))],check=True,cwd=ROOT,stdout=subprocess.DEVNULL)

    scripts/build_release.py, line 12

    subprocess.run([sys.executable,str(ROOT/'scripts/validate_repository.py')],check=True,cwd=ROOT)

    Show more

    scripts/validate_margos_verification.py, line 67

    result = subprocess.run([sys.executable, str(benchmark), "--mode", "fixture", "--strict"], cwd=ROOT, capture_output=True, text=True)

    skills/margos/scripts/margos_fingerprint.py, line 34

    result = subprocess.run(

    skills/python-engineering-harness/scripts/self_test.py, line 8

    return subprocess.run([sys.executable, *map(str, args)], text=True, capture_output=True, check=True)

  • Install and update

    Pass

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

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    skills/margos/scripts/margos_reflex_jev.py, line 651

    with urllib.request.urlopen(request, timeout=timeout) as response:

    skills/margos/scripts/margos_reflex_jev.py, line 689

    with urllib.request.urlopen(request, timeout=timeout) as response:

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    scripts/benchmark_margos_context.py, line 680

    if not os.environ.get("TYPESAFE_API_KEY"):

    scripts/benchmark_margos_jev_v3.py, line 349

    api_key = os.environ.get("TYPESAFE_API_KEY", "")

    scripts/validate_repository.py, line 69

    if f.name in {'.env'} or f.suffix.lower() in {'.pem','.key','.p12','.pfx'}: errors.append(f'unsafe tracked file: {f.relative_to(ROOT)}')

    Show more

    scripts/benchmark_margos_jev_v4.py, line 459

    key = os.environ.get("TYPESAFE_API_KEY", "")

    scripts/benchmark_margos_jev_verification.py, line 261

    api_key=os.environ.get("TYPESAFE_API_KEY", ""),

    scripts/benchmark_margos_jev_verification.py, line 348

    if args.mode == "live" and not os.environ.get("TYPESAFE_API_KEY"):

    scripts/validate_margos_context.py, line 129

    check(text.count('os.environ.get("TYPESAFE_API_KEY"')==1,'Jev adapter must use one runtime TYPESAFE_API_KEY lookup')

    skills/margos/scripts/margos_reflex_jev.py, line 44

    return os.environ.get("TYPESAFE_API_KEY", "")

    .gitignore, line 13

    .vscode/

    .gitignore, line 14

    .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 83b52c925636. requests shell access. The manifest names this permission. can reach a host that is not written as a fixed address. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 83b52c9256365b2da5fe1164e392efa9e6dae2c0

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