Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Arm MCP Server

An MCP server providing AI assistants with tools and knowledge for Arm architecture development, migration, and optimization.

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.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST SECRETS_PATH_UNCONFIRMED SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    embedding-generation/evaluate_retrieval.py, line 81 return subprocess.run(

  • NETWORK_NO_FIXED_HOST Low

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

    documentation-updater/documentation_updater.py, line 337 lines.append('curl -s "https://registry.modelcontextprotocol.io/v0.1/servers?search=arm/arm-mcp" | jq \'.\'')

  • SECRETS_PATH_UNCONFIRMED Low

    The Secrets check reports a credential or environment file, but no quoted line shows a recognisable path.

    documentation-updater/documentation_updater.py, line 183 api_key = os.getenv("OPENAI_API_KEY")

  • SECRETS_ENV_READ Note

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

    documentation-updater/documentation_updater.py, line 183 api_key = os.getenv("OPENAI_API_KEY")

  • OBFUSCATION_FILE_OVER_READ_CAP Note

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

    embedding-generation/vector-db-sources.csv, line 1 Site Name,License Type,Display Name,URL,Keywords,Transcript Source URL

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

    embedding-generation/evaluate_retrieval.py, line 81

    return subprocess.run(

    embedding-generation/generate-chunks.py, line 1111

    os.remove(os.path.join(yaml_dir, filename))

    mcp-local/scripts/stage-build-inputs.py, line 85

    subprocess.run(

    Show more

    mcp-local/scripts/stage-build-inputs.py, line 129

    subprocess.run(

    mcp-local/scripts/stage-build-inputs.py, line 157

    shutil.rmtree(wheelhouse)

    mcp-local/scripts/stage-build-inputs.py, line 229

    subprocess.run(

    mcp-local/scripts/stage-build-inputs.py, line 273

    shutil.rmtree(role_output)

    mcp-local/scripts/validate-runtime-egress.py, line 159

    return subprocess.run(

    mcp-local/scripts/validate-runtime-egress.py, line 172

    process = subprocess.Popen(

    mcp-local/utils/cli_utils.py, line 46

    proc = subprocess.run(

    mcp-local/utils/migrate_ease_utils.py, line 226

    proc = subprocess.run(

    mcp-local/utils/migrate_ease_utils.py, line 264

    os.remove(out_path)

    mcp-local/utils/migrate_ease_utils.py, line 291

    shutil.rmtree(temporary_clone_dir, ignore_errors=True)

    mcp-local/utils/migrate_ease_utils.py, line 293

    shutil.rmtree(filtered_workspace_dir, ignore_errors=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

    documentation-updater/documentation_updater.py, line 337

    lines.append('curl -s "https://registry.modelcontextprotocol.io/v0.1/servers?search=arm/arm-mcp" | jq \'.\'')

    embedding-generation/discover-developer-arm-com-sources.py, line 113

    response = requests.post(captured.url, headers=headers, json=body, timeout=60)

    mcp-local/utils/docker_utils.py, line 28

    response = requests.get(url, params=params, timeout=TIMEOUT_SECONDS)

    Show more

    mcp-local/utils/docker_utils.py, line 43

    response = requests.get(url, headers=headers, timeout=TIMEOUT_SECONDS)

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_UNCONFIRMED

    documentation-updater/documentation_updater.py, line 183

    api_key = os.getenv("OPENAI_API_KEY")

    .gitignore, line 9

    env/

  • 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

    embedding-generation/vector-db-sources.csv, line 1

    Site Name,License Type,Display Name,URL,Keywords,Transcript Source URL

  • 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 e476aa93a725. can delete files. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: e476aa93a7257116c02aef92090840f69f790083

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Read how this letter is chosen