Grades are a hygiene check, not a security guarantee.

Codex, Plugin

Agy Staff

Hire Google's Antigravity CLI (agy) as a fast Gemini staffer for Claude Code and OpenAI Codex.

Compatibility: Portable across standard formats.

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 edf96c988c0a.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST OBFUSCATION_ENCODED_BLOB INSTALL_DOCUMENTED_INSTALLER

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    bench/harbor_agents/codex_writeback.py, line 125 shutil.rmtree(staging, ignore_errors=True)

  • NETWORK_NO_FIXED_HOST Low

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

    bench/harbor_agents/egress.py, line 22 # curl when the image has it; otherwise the Node baked into every task image (bake-task.sh).

  • OBFUSCATION_ENCODED_BLOB Low

    Contains a long base64 shaped string in a file that should be readable.

    bench/results/v1/cost.svg, line 2 <defs><linearGradient gradientUnits="userSpaceOnUse" id="codexgrad" x1="12" x2="12" y1="3" y2="21"><stop stop-color="#B1A7FF"/><stop offset=".5" stop-color="#7A9DFF"/><stop offset=

  • INSTALL_DOCUMENTED_INSTALLER Note

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

    README.md, line 62 curl -fsSL https://antigravity.google/cli/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

    Concern

    can delete files.

    PERMISSION_DELETE_FILES

    bench/harbor_agents/codex_writeback.py, line 125

    shutil.rmtree(staging, ignore_errors=True)

    bench/scripts/run-batch.py, line 84

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

    bench/scripts/run-batch.py, line 197

    rc = subprocess.run(cmd, stdout=out, stderr=subprocess.STDOUT).returncode

    Show more

    companion/agy-companion.mjs, line 1300

    try { fs.unlinkSync(file); } catch (error) { process.stderr.write(`cleanup: ${error.message}\n`); }

    companion/agy-companion.mjs, line 1715

    fs.unlinkSync(configPath());

    companion/state-lock.mjs, line 65

    fs.unlinkSync(path.join(lock, entries[0]));

    companion/state-lock.mjs, line 86

    fs.unlinkSync(marker);

    companion/state-lock.mjs, line 101

    } else fs.rmSync(candidate, { recursive: true, force: true });

  • Install and update

    Note

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

    INSTALL_DOCUMENTED_INSTALLER

    README.md, line 62

    curl -fsSL https://antigravity.google/cli/install.sh | bash

    README.zh-CN.md, line 50

    curl -fsSL https://antigravity.google/cli/install.sh | bash

    docs/INSTALL_FOR_AGENTS.md, line 10

    google/docs/cli/install> (macOS/Linux: `curl -fsSL https://antigravity.google/cli/install.sh | bash`) and wait for them to install and auth

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    bench/harbor_agents/egress.py, line 22

    # curl when the image has it; otherwise the Node baked into every task image (bake-task.sh).

    bench/harbor_agents/egress.py, line 26

    "fetch(process.argv[1],{signal:AbortSignal.timeout(20000)})"

    bench/harbor_agents/egress.py, line 30

    f"if command -v curl >/dev/null 2>&1; then curl -fsS --max-time 20 {q}; "

    Show more

    bench/scripts/egress-check.sh, line 22

    BODY=$(env -u all_proxy -u ALL_PROXY curl -fsS --max-time 20 "$URL" 2>/dev/null) && break

    bench/scripts/fetch-tools.sh, line 23

    --claude-arch ARCH arm64 | x64 | none: the Claude Code build to fetch (default: the Docker engine's

    bench/scripts/fetch-tools.sh, line 80

    fetch() {

    bench/scripts/fetch-tools.sh, line 84

    if ! curl -fL --retry 3 --progress-bar -o "$2.part" "$1"; then

    bench/scripts/fetch-tools.sh, line 138

    if curl -fL --retry 3 -s -o "$tmp/p.apk" "$APK/$pkg.apk" && tar -xzf "$tmp/p.apk" -C "$tmp" "$src" 2>/dev/null; then

  • 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

    Concern

    contains an encoded blob in a file that should be readable.

    OBFUSCATION_ENCODED_BLOB

    bench/results/v1/cost.svg, line 2

    <defs><linearGradient gradientUnits="userSpaceOnUse" id="codexgrad" x1="12" x2="12" y1="3" y2="21"><stop stop-color="#B1A7FF"/><stop offset=".5" stop-color="#7A9DFF"/><stop offset=

    bench/results/v1/summary.svg, line 2

    <defs><linearGradient gradientUnits="userSpaceOnUse" id="codexgrad" x1="12" x2="12" y1="3" y2="21"><stop stop-color="#B1A7FF"/><stop offset=".5" stop-color="#7A9DFF"/><stop offset=

    bench/results/v1/tokens.svg, line 2

    <defs><linearGradient gradientUnits="userSpaceOnUse" id="codexgrad" x1="12" x2="12" y1="3" y2="21"><stop stop-color="#B1A7FF"/><stop offset=".5" stop-color="#7A9DFF"/><stop offset=

  • 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 edf96c988c0a. can delete files. can reach a host that is not written as a fixed address. contains an encoded blob in a file that should be readable.

Date and source

Date checked:

View source

github.com

Commit graded: edf96c988c0a7e61543e97ceff1952f5af8dd5cd

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