Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Agentic Tools

Agent skills for Meta VR and Horizon OS development.

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High finding. Only try it in a sandbox.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit 3a8553d10a5a, unchanged since the check below.

INSTALL_REMOTE_SCRIPT

Why this grade

  • INSTALL_REMOTE_SCRIPT High

    Fetches a script from the network and runs it (a pipe to a shell, or an install hook with a URL).

    skills/metavr-cli/SKILL.md, line 41 curl -fsSL https://developers.meta.com/horizon/install-cli/ | sh

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.

If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.

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 call was found in the code. This check does not read permissions an entry declares. A permission line to run shell commands and write or edit files was found in this repository, and it may apply to this entry.

  • Install and update

    Serious

    install fetches a script from the network. README documents an installer that pipes a download into a shell. The docs document an installer that pipes a download into a shell.

    INSTALL_REMOTE_SCRIPT INSTALL_DOCUMENTED_INSTALLER

    README.md, line 29

    curl -fsSL https://developers.meta.com/horizon/install-cli/ | sh

    skills/metavr-cli/SKILL.md, line 41

    curl -fsSL https://developers.meta.com/horizon/install-cli/ | sh

    skills/portal/SKILL.md, line 55

    # Any OS: curl -fsSL https://dl.google.com/android/cli/latest/darwin_arm64/install.sh | bash (see § 1 for other OSes)

    Show more

    skills/portal/SKILL.md, line 64

    curl -fsSL https://developers.meta.com/horizon/install-cli/ | sh # macOS/Linux

    skills/portal/resources/android-sdk-setup.md, line 167

    curl -fsSL https://dl.google.com/android/cli/latest/darwin_arm64/install.sh | bash

    skills/portal/resources/android-sdk-setup.md, line 173

    curl -fsSL https://dl.google.com/android/cli/latest/darwin_x86_64/install.sh | bash

    skills/portal/resources/android-sdk-setup.md, line 179

    curl -fsSL https://dl.google.com/android/cli/latest/linux_x86_64/install.sh | bash

    skills/portal/resources/android-sdk-setup.md, line 300

    Darwin-arm64) curl -fsSL https://dl.google.com/android/cli/latest/darwin_arm64/install.sh | bash ;;

    skills/portal/resources/android-sdk-setup.md, line 301

    Darwin-x86_64) curl -fsSL https://dl.google.com/android/cli/latest/darwin_x86_64/install.sh | bash ;;

    skills/portal/resources/android-sdk-setup.md, line 302

    Linux-x86_64) curl -fsSL https://dl.google.com/android/cli/latest/linux_x86_64/install.sh | bash ;;

    skills/portal/resources/metavr.md, line 31

    curl -fsSL https://developers.meta.com/horizon/install-cli/ | sh

  • Network

    Concern

    can reach a host that is not written as a fixed address. can reach www.oculus.com. The description does not name that host. can reach example.com. The description does not name that host. can reach dl.google.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    skills/hz-store-pwa/SKILL.md, line 142

    curl -s -o /dev/null -w "%{http_code}\n" https://<DOMAIN>/manifest.webmanifest

    skills/hz-store-pwa/references/bubblewrap-packaging.md, line 117

    curl https://<DOMAIN>/.well-known/assetlinks.json

    skills/hz-store-pwa/references/bubblewrap-packaging.md, line 129

    curl -o /dev/null -w "%{http_code}" https://<DOMAIN>/android.keystore # expect 404

    Show more

    skills/hz-store-pwa/references/store-upload.md, line 10

    curl -L -o ovr-platform-util "https://www.oculus.com/download_app/?id=1462426033810370&access_token=OC%7C1462426033810370%7C"

    skills/hz-store-pwa/references/troubleshooting.md, line 37

    curl https://<DOMAIN>/.well-known/assetlinks.json

    skills/hz-store-pwa/references/vercel-deploy.md, line 37

    curl -s -o /dev/null -w "%{http_code}\n" https://<DOMAIN>/

    skills/hz-store-pwa/references/vercel-deploy.md, line 38

    curl -s -o /dev/null -w "%{http_code}\n" https://<DOMAIN>/manifest.webmanifest

    skills/hz-store-pwa/references/vercel-deploy.md, line 45

    curl -s -I https://<DOMAIN>/manifest.webmanifest | grep -i content-type

  • 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.

Note

Hygiene check of commit 3a8553d10a5a. install fetches a script from the network. 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 www.oculus.com. The description does not name that host. can reach example.com. The description does not name that host. can reach dl.google.com. The description does not name that host.

Date and source

Date checked:

View source

github.com

Commit graded: 3a8553d10a5a1bd1bf9beaaa950243fbbed3b9ea

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