Grades are a hygiene check, not a security guarantee.

Cursor, Plugin

Modbus Skills

Read-only Modbus engineering skills and workflows for Codex, Claude Code, Cursor, and other Agent Plugins clients.

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 e490396ec775, unchanged since the check below.

PERMISSION_DELETE_FILES OBFUSCATION_FILE_CAP_REACHED

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    plugins/modbus-skills/runtime/modbus_skills/gavinying_launcher.py, line 85 child = subprocess.Popen(argv, cwd=cwd, stdout=subprocess.PIPE, stderr=subprocess.PIPE,

  • OBFUSCATION_FILE_CAP_REACHED Note

    The 400 file cap was reached before every file was read.

    tests/test_skill_usability_contracts.py, line 1 from __future__ import annotations

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

    plugins/modbus-skills/runtime/modbus_skills/gavinying_launcher.py, line 85

    child = subprocess.Popen(argv, cwd=cwd, stdout=subprocess.PIPE, stderr=subprocess.PIPE,

    plugins/modbus-skills/runtime/modbus_skills/gavinying_launcher.py, line 330

    shutil.rmtree('.stage', dir_fd=directory_fd)

    plugins/modbus-skills/runtime/modbus_skills/pdf_extraction.py, line 1340

    process = subprocess.Popen(argv, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=False)

    Show more

    plugins/modbus-skills/runtime/modbus_skills/pdf_table_extraction.py, line 163

    process = subprocess.Popen(argv, stdout=stdout, stderr=stderr, shell=False)

    scripts/build_plugin_variants.py, line 125

    shutil.rmtree(destination)

    scripts/check_public_boundary.py, line 34

    listing = subprocess.run(

    scripts/direct_skill_guard.py, line 59

    elif event in {"subprocess.Popen", "os.posix_spawn"}:

    scripts/run_compile_workflow_tests.py, line 494

    shutil.rmtree(child)

    scripts/run_corpus_baseline.py, line 79

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

    scripts/run_direct_skill_acceptance.py, line 359

    process = subprocess.Popen(command, stdout=stdout, stderr=stderr, env=environment, cwd=output, start_new_session=os.name == "posix")

    scripts/run_direct_skill_acceptance.py, line 419

    if output.is_relative_to(ROOT) and subprocess.run(["git", "-C", str(ROOT), "check-ignore", "--quiet", "--", str(output)], check=False).returncode:

    scripts/pstack/map_matrix/run_worker.py, line 204

    shutil.rmtree(ocr_dir)

    scripts/pstack/map_matrix/run_worker.py, line 321

    shutil.rmtree(work)

    scripts/skill_usability/sessions.py, line 373

    shutil.rmtree(workspace)

    scripts/skill_usability/sessions.py, line 456

    shutil.rmtree(snap)

    scripts/skill_usability/sessions.py, line 471

    shutil.rmtree(session.workspace, ignore_errors=False)

  • Install and update

    Pass

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

  • Network

    Pass

    No network call found.

  • Secrets

    Pass

    No read of a credential file or secret environment variable found.

  • Agent instructions

    Pass

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

  • Obfuscation

    Note

    the file cap was reached before every file was read.

    OBFUSCATION_FILE_CAP_REACHED

    tests/test_skill_usability_contracts.py, line 1

    from __future__ import annotations

  • 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 e490396ec775. can delete files. the file cap was reached before every file was read.

Date and source

Date checked:

View source

github.com

Commit graded: e490396ec775d6b12523b4ff25aa8244ac70135c

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