Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Wayhand Mcp

wayhand-mcp is a local MCP server that lets Claude Code see and operate a GNOME Wayland desktop: screenshot, click/type/drag by screenshot pixel coordinates, screenshot again to verify.

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.

NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_PATH_DOTENV INSTALL_DOCUMENTED_INSTALLER

Why this grade

  • NETWORK_NO_FIXED_HOST Low

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

    scripts/install.sh, line 67 command -v curl >/dev/null || { echo "需要 curl" >&2; exit 1; }

  • NETWORK_UNNAMED_HOST Low

    Calls a fixed host that the description does not name.

    scripts/install.sh, line 67 command -v curl >/dev/null || { echo "需要 curl" >&2; exit 1; }

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    src/sandbox/mod.rs, line 96 .env("WAYHAND_SANDBOX_DIR", &dir);

  • INSTALL_DOCUMENTED_INSTALLER Note

    Documentation shows an installer that pipes a download into a shell.

    README.md, line 31 curl -fsSL https://raw.githubusercontent.com/TimLai666/wayhand-mcp/main/scripts/install.sh | bash

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

    Pass

    No shell or command execution found, and no extra permission was declared.

  • Install and update

    Note

    README documents an installer that pipes a download into a shell. The docs document an installer that pipes a download into a shell.

    INSTALL_DOCUMENTED_INSTALLER

    README.md, line 31

    curl -fsSL https://raw.githubusercontent.com/TimLai666/wayhand-mcp/main/scripts/install.sh | bash

    scripts/install.sh, line 5

    # curl -fsSL https://raw.githubusercontent.com/TimLai666/wayhand-mcp/main/scripts/install.sh | bash

  • Network

    Concern

    can reach a host that is not written as a fixed address. can reach api.github.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    scripts/install.sh, line 67

    command -v curl >/dev/null || { echo "需要 curl" >&2; exit 1; }

    scripts/install.sh, line 69

    VERSION=$(curl -fsSL "https://api.github.com/repos/$REPO/releases/latest" | sed -n 's/.*"tag_name": *"\([^"]*\)".*/\1/p' | head -1)

    scripts/install.sh, line 77

    curl -fsSL -o "$TMP/$ASSET" "$URL"

    Show more

    scripts/install.sh, line 78

    curl -fsSL -o "$TMP/$ASSET.sha256" "$URL.sha256"

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    src/sandbox/mod.rs, line 96

    .env("WAYHAND_SANDBOX_DIR", &dir);

    src/sandbox/mod.rs, line 99

    .env("WLR_BACKENDS", "headless")

    src/sandbox/mod.rs, line 100

    .env("WLR_LIBINPUT_NO_DEVICES", "1")

    Show more

    src/sandbox/mod.rs, line 169

    .env("WAYLAND_DISPLAY", &self.display)

    src/sandbox/mod.rs, line 170

    .env("XDG_SESSION_TYPE", "wayland")

    src/sandbox/mod.rs, line 171

    .env("GDK_BACKEND", "wayland")

    src/sandbox/mod.rs, line 172

    .env("QT_QPA_PLATFORM", "wayland")

  • 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 fd81f11c1a33. README documents an installer that pipes a download into a shell. The docs document an installer that pipes a download into a shell. can reach a host that is not written as a fixed address. can reach api.github.com. The description does not name that host. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: fd81f11c1a33fb0e905955bff7bf72337f4b817d

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