Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mcp Shell

MCP server that runs shell commands.

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 b358b02bcad8, unchanged since the check below.

SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED

Why this grade

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    executor.go, line 267 // loaded .env put there. git additionally gets its system and global config

  • PERMISSION_SHELL_DECLARED Note

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

    executor.go, line 76 cmd := exec.CommandContext(cmdCtx, execArgv[0], execArgv[1:]...)

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

    executor.go, line 76

    cmd := exec.CommandContext(cmdCtx, execArgv[0], execArgv[1:]...)

    executor.go, line 116

    cmd := exec.CommandContext(cmdCtx, "bash", "-c", command)

    executor_test.go, line 82

    cmd := exec.Command("git", args...)

    Show more

    sandbox_linux_test.go, line 52

    cmd := exec.Command(self, sandboxArg, ws, "--", "/bin/sh", "-c", script)

    sandbox_linux_test.go, line 72

    cmd := exec.Command(self, sandboxArg, ws, "--", "/bin/sh", "-c", script)

    tools_git_test.go, line 26

    cmd := exec.Command("git", args...)

    tools_git_test.go, line 244

    cmd := exec.Command("git", "tag", "v1")

    tools_git_test.go, line 648

    cmd := exec.Command("git", args...)

  • Install and update

    Pass

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

  • Network

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    executor.go, line 267

    // loaded .env put there. git additionally gets its system and global config

    .dockerignore, line 10

    dist/

    .gitignore, line 24

    # Environment files

    Show more

    README.md, line 184

    never the server's own environment or `.env` secrets.

    SECURITY.md, line 27

    `.env` loaded at startup, so a tool cannot recover secrets held by the

  • 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.

Get the full report on this tool, £49

Note

Hygiene check of commit b358b02bcad8. requests shell access. The manifest names this permission. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: b358b02bcad8509353dacdeb39762801433fea42

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