Grades are a hygiene check, not a security guarantee.

MCP, MCP server

d2mcp

A Model Context Protocol (MCP) server that provides D2 diagram generation and manipulation capabilities.

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 250b193b640c, unchanged since the check below.

PERMISSION_SHELL_DECLARED

Why this grade

  • PERMISSION_SHELL_DECLARED Note

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

    internal/infrastructure/d2/repository.go, line 145 cmd := exec.Command("rsvg-convert", "-f", "png", "-o", outFile.Name(), svgFile.Name())

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

    internal/infrastructure/d2/repository.go, line 145

    cmd := exec.Command("rsvg-convert", "-f", "png", "-o", outFile.Name(), svgFile.Name())

    internal/infrastructure/d2/repository.go, line 149

    cmd = exec.Command("convert", svgFile.Name(), outFile.Name())

    internal/infrastructure/d2/repository.go, line 196

    cmd := exec.Command("rsvg-convert", "-f", "pdf", "-o", outFile.Name(), svgFile.Name())

    Show more

    internal/infrastructure/d2/repository.go, line 200

    cmd = exec.Command("convert", svgFile.Name(), outFile.Name())

  • 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

    Note

    the latest commit is more than 365 days old.

    MAINTAINER_STALE

    No file path was stored.

    2025-07-02T23:08:17+09:00

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Note

Hygiene check of commit 250b193b640c. requests shell access. The manifest names this permission. the latest commit is more than 365 days old.

Date and source

Date checked:

View source

github.com

Commit graded: 250b193b640ccf5c0f8ab5d0b67de3b63c6cc3be

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