Grades are a hygiene check, not a security guarantee.

MCP, MCP server

CTRLRun Operator

CTRLRun Operator, an MCP server listed in the PlugVet directory.

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 3f97ed8eddbe, unchanged since the check below.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    examples/anchored-chain/main.py, line 109 shutil.rmtree(STATE)

  • NETWORK_NO_FIXED_HOST Low

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

    research/framework-probe/framework_probe/adapters/_framework.py, line 53 with urllib.request.urlopen(request, timeout=REQUEST_TIMEOUT) as response:

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .gitignore, line 14 .env

  • OBFUSCATION_FILE_OVER_READ_CAP Note

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

    CHANGELOG.md, line 1 # Changelog

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

    examples/anchored-chain/main.py, line 109

    shutil.rmtree(STATE)

    scripts/five_schema_chain.py, line 100

    seen = subprocess.run(

    scripts/five_schema_chain.py, line 129

    subprocess.run(

    Show more

    scripts/five_schema_chain.py, line 152

    done = subprocess.run(

    src/ctrlrun/conformance/store/suites.py, line 351

    subprocess.Popen(

    src/ctrlrun/conformance/store/suites.py, line 611

    subprocess.Popen(

    src/ctrlrun/verify/__init__.py, line 221

    shutil.rmtree(scratch, ignore_errors=True)

    src/ctrlrun/verify/scenarios.py, line 5526

    started: list[subprocess.Popen[bytes]] = []

    src/ctrlrun/verify/scenarios.py, line 5528

    process = subprocess.Popen(

  • 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

    research/framework-probe/framework_probe/adapters/_framework.py, line 53

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

    research/framework-probe/framework_probe/adapters/mcp_client.py, line 68

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

    research/framework-probe/framework_probe/adapters/stub.py, line 39

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

    Show more

    src/ctrlrun/upstream.py, line 128

    socket.create_connection((host, port), timeout=timeout) as raw,

    docs/SPEC-mcp-operator.md, line 316

    cost of a JWKS fetch (`v0.3 §3.4`) a cost of reading.

    docs/SPEC-v0.4.md, line 639

    replaces `socket.socket`, `socket.create_connection` and `socket.getaddrinfo` with a refusal -

    docs/SPEC-v0.4.md, line 1195

    `socket.create_connection` and `socket.getaddrinfo` with a refusal completes normally and

    docs/SPEC-v0.7.md, line 201

    refuses `socket.socket.connect`, `connect_ex`, `socket.create_connection` and

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    .gitignore, line 13

    # stood between it and a public commit.

    .gitignore, line 14

    .env

    .gitignore, line 16

    !.env.example

  • 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

    CHANGELOG.md, line 1

    # Changelog

    docs/SPEC-v0.3.md, line 1

    # ctrlrun v0.3 Specification

    docs/SPEC-v0.7.md, line 1

    # ctrlrun v0.7 Specification: Execution boundary

    Show more

    src/ctrlrun/control.py, line 1

    # SPDX-FileCopyrightText: 2026 The ctrlrun contributors

    src/ctrlrun/verify/scenarios.py, line 1

    # SPDX-FileCopyrightText: 2026 The ctrlrun contributors

  • 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 3f97ed8eddbe. 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: 3f97ed8eddbeeb24935501ea4be0d411ed1ec31d

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