Grades are a hygiene check, not a security guarantee.

MCP, MCP server

PowerShell.MCP

Security Warning: This module provides complete PowerShell access to your system.

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_SHELL_DECLARED

Why this grade

  • PERMISSION_SHELL_DECLARED Note

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

    .github/workflows/cross-platform-test.yml, line 30 # stay free of Invoke-Expression (the AMSI-heuristic regression guard).

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

    .github/workflows/cross-platform-test.yml, line 30

    # stay free of Invoke-Expression (the AMSI-heuristic regression guard).

    .github/workflows/cross-platform-test.yml, line 58

    # zero Invoke-Expression. IEX is the single highest-weighted AMSI

    .github/workflows/cross-platform-test.yml, line 62

    $iexHits = Select-String -Path $engine -Pattern 'Invoke-Expression' -AllMatches

    Show more

    .github/workflows/cross-platform-test.yml, line 66

    Write-Host "::error file=$engine,line=$($h.LineNumber)::Invoke-Expression is banned in the polling engine (AMSI #50 regression guard)"

    .github/workflows/cross-platform-test.yml, line 69

    Write-Host "OK: no Invoke-Expression in $engine"

    .github/workflows/release.yml, line 76

    if (Select-String -Path $engine -Pattern 'Invoke-Expression' -Quiet) {

    .github/workflows/release.yml, line 78

    Write-Host "::error file=$engine::Invoke-Expression is banned in the polling engine (AMSI #50 regression guard)"

    CHANGELOG.md, line 113

    - **Fewer false UNDEFINED warnings.** `Tee-Object -Variable t; $t`, `Import-LocalizedData -BindingVariable m; $m`, `Invoke-WebRequest … -SessionVariable s; $s` were reported as rea

  • 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

    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 6d7c9f4d23eb. requests shell access. The manifest names this permission.

Date and source

Date checked:

View source

github.com

Commit graded: 6d7c9f4d23eb9568866728ee4dc93d48ea40c7ea

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