Grades are a hygiene check, not a security guarantee.

Claude Code, Skill

Antigravity Skills Hub

Antigravity Skills Hub, a skill listed in the PlugVet directory.

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_DELETE_FILES INSTALL_UNPINNED NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_PATH_DOTENV INSTALL_DOCUMENTED_INSTALLER SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    Skills/brainstorming/scripts/server.cjs, line 604 if (fs.existsSync(eventsFile)) fs.unlinkSync(eventsFile);

  • INSTALL_UNPINNED Low

    Dependencies use a range or git URL with no lockfile.

    Skills/origin/SKILL.md, line 49 curl -fsSL https://downloads.cursor.com/origin/install.sh | sh

  • NETWORK_NO_FIXED_HOST Low

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

    Skills/brainstorming/scripts/helper.js, line 80 ws = new WebSocket(websocketUrl());

  • NETWORK_UNNAMED_HOST Low

    Calls a fixed host that the description does not name.

    Skills/brainstorming/scripts/helper.js, line 80 ws = new WebSocket(websocketUrl());

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    Skills/codebase-onboarding/SKILL.md, line 52 docker-compose*, .github/workflows/, .env.example, CI configs

  • INSTALL_DOCUMENTED_INSTALLER Note

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

    Skills/origin/SKILL.md, line 49 curl -fsSL https://downloads.cursor.com/origin/install.sh | sh

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    Skills/backend-patterns/SKILL.md, line 371 const payload = jwt.verify(token, process.env.JWT_SECRET!) as JWTPayload

  • OBFUSCATION_FILE_OVER_READ_CAP Note

    A file was over the read cap and was not fully read.

    Skills/docx/scripts/office/schemas/ISO-IEC29500-4_2016/sml.xsd, line 1 <?xml version="1.0" encoding="utf-8"?>

  • OBFUSCATION_FILE_CAP_REACHED Note

    The 400 file cap was reached before every file was read.

    Skills/docx/scripts/office/schemas/ISO-IEC29500-4_2016/sml.xsd, line 1 <?xml version="1.0" encoding="utf-8"?>

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

    Concern

    can delete files.

    PERMISSION_DELETE_FILES

    Skills/brainstorming/scripts/server.cjs, line 604

    if (fs.existsSync(eventsFile)) fs.unlinkSync(eventsFile);

    Skills/brainstorming/scripts/server.cjs, line 619

    if (fs.existsSync(infoFile)) fs.unlinkSync(infoFile);

    Skills/codex-harness-agent/scripts/accessibility_scanner.py, line 84

    res = subprocess.run(cmd, capture_output=True, text=True, timeout=2.5)

    Show more

    Skills/codex-harness-agent/scripts/antigravity_cua_bridge.py, line 35

    res = subprocess.run(["pgrep", "-f", "computer-use-hud"], capture_output=True, text=True)

    Skills/codex-harness-agent/scripts/antigravity_cua_bridge.py, line 51

    subprocess.Popen([hud_bin], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)

    Skills/codex-harness-agent/scripts/antigravity_cua_bridge.py, line 71

    res = subprocess.run(["osascript", "-e", script], capture_output=True, text=True, timeout=2)

    Skills/codex-harness-agent/scripts/antigravity_cua_bridge.py, line 88

    subprocess.run(["screencapture", "-x", SCREENSHOT_PATH], check=True)

    Skills/codex-harness-agent/scripts/codex_agent_runner.py, line 43

    os.remove(approval_pipe)

    Skills/codex-harness-agent/scripts/codex_agent_runner.py, line 79

    os.remove(approval_pipe)

    Skills/codex-harness-agent/scripts/codex_agent_runner.py, line 112

    proc = subprocess.run(cmd, text=True)

    Skills/codex-harness-agent/scripts/codex_agent_runner.py, line 135

    status_proc = subprocess.run(["pgrep", "-f", "computer-use-hud"], capture_output=True, text=True)

    Skills/codex-harness-agent/scripts/codex_agent_runner.py, line 142

    os.remove(pipe_path)

    Skills/codex-harness-agent/scripts/codex_agent_runner.py, line 144

    proc = subprocess.Popen([hud_bin], start_new_session=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)

    Skills/codex-harness-agent/scripts/codex_vision_loop.py, line 275

    os.remove(raw_path)

    Skills/codex-harness-agent/scripts/codex_vision_loop.py, line 277

    os.remove(comp_path)

    Skills/codex-harness-agent/scripts/codex_vision_loop.py, line 282

    os.remove(raw_path)

  • Install and update

    Concern

    dependencies are not pinned. The docs document an installer that pipes a download into a shell.

    INSTALL_UNPINNED INSTALL_DOCUMENTED_INSTALLER

    Skills/origin/SKILL.md, line 49

    curl -fsSL https://downloads.cursor.com/origin/install.sh | sh

    requirements.txt, line 8

    python-docx>=1.1.0

  • Network

    Concern

    can reach a host that is not written as a fixed address. can reach raw.githubusercontent.com. The description does not name that host. can reach deb.nodesource.com. The description does not name that host. can reach api.example.com. The description does not name that host. can reach api.openweathermap.org. The description does not name that host. can reach www.googleapis.com. The description does not name that host. can reach accounts.google.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    Skills/brainstorming/scripts/helper.js, line 80

    ws = new WebSocket(websocketUrl());

    Skills/codex-harness-agent/scripts/codex_vision_loop.py, line 416

    with urllib.request.urlopen(req, timeout=30) as resp:

    Skills/docker-and-compose/SKILL.md, line 80

    CMD wget --no-verbose --tries=1 --spider http://localhost:3000/api/health || exit 1

    Show more

    Skills/docker-and-compose/SKILL.md, line 108

    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')" || exit 1

    Skills/docx/setup.sh, line 36

    info "Install: /bin/bash -c \"\$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)\""

    Skills/docx/setup.sh, line 50

    Linux) info "Install: curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -"

    Skills/error-handling/SKILL.md, line 349

    const data = await withRetry(() => fetch('/api/data').then(r => r.json()), {

    Skills/excalidraw/scripts/upload.py, line 89

    with urllib.request.urlopen(req, timeout=30) as resp:

    Skills/github-pr-workflow/SKILL.md, line 146

    curl -s -X POST \

    Skills/github-pr-workflow/SKILL.md, line 183

    curl -s \

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    Skills/backend-patterns/SKILL.md, line 371

    const payload = jwt.verify(token, process.env.JWT_SECRET!) as JWTPayload

    Skills/brainstorming/scripts/server.cjs, line 123

    const TOKEN_FILE = process.env.BRAINSTORM_TOKEN_FILE || null;

    Skills/codebase-onboarding/SKILL.md, line 52

    docker-compose*, .github/workflows/, .env.example, CI configs

    Show more

    Skills/brainstorming/scripts/server.cjs, line 133

    if (process.env.BRAINSTORM_TOKEN) {

    Skills/brainstorming/scripts/server.cjs, line 134

    return { value: process.env.BRAINSTORM_TOKEN, source: 'env' };

    Skills/codex-harness-agent/scripts/codex_agent_runner.py, line 377

    api_key = os.environ.get("OPENAI_API_KEY")

    Skills/codex-harness-agent/scripts/codex_agent_runner.py, line 422

    api_key = os.environ.get("OPENAI_API_KEY")

    Skills/codex-harness-agent/scripts/codex_vision_loop.py, line 176

    gemini_key = os.environ.get("GEMINI_API_KEY")

    Skills/codex-harness-agent/scripts/codex_vision_loop.py, line 183

    self.api_key = api_key or os.environ.get("ANTHROPIC_AUTH_TOKEN") or os.environ.get("OPENROUTER_API_KEY")

    Skills/git-workflow/SKILL.md, line 530

    .env

    Skills/git-workflow/SKILL.md, line 531

    .env.local

    Skills/git-workflow/SKILL.md, line 532

    .env.*.local

    Skills/git-workflow/SKILL.md, line 677

    git add .env # Contains API keys

    Skills/github-pr-workflow/SKILL.md, line 35

    if _hermes_env="${HERMES_HOME:-$HOME/.hermes}/.env"; [ -f "$_hermes_env" ] && grep -q "^GITHUB_TOKEN=" "$_hermes_env"; then

    .gitignore, line 43

    ENV/

    Skills/chrome-extensions/SKILL.md, line 449

    - ZIP must exclude `.git/`, `node_modules/`, `.env`, `CHROMEWEBSTORE.md`

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Note

    a file was over the read cap and was not fully read. the file cap was reached before every file was read.

    OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED

    Skills/docx/scripts/office/schemas/ISO-IEC29500-4_2016/sml.xsd, line 1

    <?xml version="1.0" encoding="utf-8"?>

    Skills/powerpoint/scripts/office/schemas/ISO-IEC29500-4_2016/sml.xsd, line 1

    <?xml version="1.0" encoding="utf-8"?>

    Skills/update-cursor-settings/SKILL.md, line 1

    ---

  • 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 0d4d7eae484f. can delete files. dependencies are not pinned. 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 raw.githubusercontent.com. The description does not name that host. can reach deb.nodesource.com. The description does not name that host. can reach api.example.com. The description does not name that host. can reach api.openweathermap.org. The description does not name that host. can reach www.googleapis.com. The description does not name that host. can reach accounts.google.com. The description does not name that host. reads a credential or environment file. a

Date and source

Date checked:

View source

github.com

Commit graded: 0d4d7eae484fc8c1d692df470adff9222f8aa80e

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