Grades are a hygiene check, not a security guarantee.

Claude Code, Skill

Synapse

Synapse, a skill listed in the PlugVet directory.

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High. 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.

PERMISSION_SHELL_UNDECLARED INSTALL_REMOTE_SCRIPT NETWORK_HOST_FROM_INPUT

Why this grade

  • PERMISSION_SHELL_UNDECLARED Medium

    Runs shell commands that the manifest or description does not mention.

    backend/agent/artifacts/manager.py, line 261 os.remove(temp_path)

  • INSTALL_REMOTE_SCRIPT Medium

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

    container/Dockerfile.default, line 6 && curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \

  • NETWORK_HOST_FROM_INPUT Medium

    A file takes a URL or endpoint as input and has no fixed host list.

    backend/api/routes/artifacts.py, line 507 probe_cmd = f"curl -sS -m 1 -o /dev/null {shlex.quote(f'http://localhost:{port}/')}"

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

    Concern

    can delete files. requests shell access. No manifest field names shell or command execution.

    PERMISSION_SHELL_UNDECLARED PERMISSION_DELETE_FILES

    backend/agent/artifacts/manager.py, line 261

    os.remove(temp_path)

    backend/agent/artifacts/storage.py, line 103

    os.remove(file_real)

    backend/agent/context/compaction.py, line 1116

    ``shell_exec("npm test") → error: exit code 1``

    Show more

    backend/agent/skills/installer.py, line 90

    subprocess.run(

    backend/agent/skills/installer.py, line 227

    shutil.rmtree(target)

    backend/agent/skills/installer.py, line 350

    shutil.rmtree(target)

    backend/agent/tools/sandbox/browser_session.py, line 310

    os.remove(CMD_FILE)

    backend/agent/tools/sandbox/code_search.py, line 189

    "result = subprocess.run(cmd, capture_output=True, text=True)\n"

  • Install and update

    Serious

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

    INSTALL_REMOTE_SCRIPT INSTALL_DOCUMENTED_INSTALLER

    docs/setup.md, line 304

    curl -LsSf https://astral.sh/uv/install.sh | sh

    docs/zh-CN/setup.md, line 307

    curl -LsSf https://astral.sh/uv/install.sh | sh

    container/Dockerfile.default, line 6

    && curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \

  • Network

    Serious

    accepts a host from input, with no fixed list in this file.

    NETWORK_HOST_FROM_INPUT

    backend/api/routes/artifacts.py, line 507

    probe_cmd = f"curl -sS -m 1 -o /dev/null {shlex.quote(f'http://localhost:{port}/')}"

    backend/evals/cases/agent_handoff.yaml, line 45

    response = requests.get(url, timeout=10)

    web/src-tauri/loader/index.html, line 91

    const response = await fetch(

    Show more

    web/src/app/api/[...proxy]/proxy-event-stream.ts, line 16

    const backendResponse = await fetch(url, {

    web/src/app/api/[...proxy]/route.ts, line 56

    const backendResponse = await fetch(url, {

    web/src/app/auth/desktop-callback/page.tsx, line 39

    fetch("/api/auth/desktop-token", {

    web/src/app/login/page.tsx, line 58

    const res = await fetch(

    web/src/features/agent-computer/components/ArtifactFilesPanel.tsx, line 246

    const response = await fetch(`/api/conversations/${conversationId}/artifacts/bulk`, {

    web/src/features/channels/api/channel-api.ts, line 43

    const res = await fetch(`${API_BASE}/channels/status`, { cache: "no-store" });

    web/src/features/channels/api/channel-api.ts, line 51

    const res = await fetch(`${API_BASE}/channels/telegram/config`, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    backend/agent/config.py, line 3

    The core never reads environment variables or ``.env`` files. Core code calls

    backend/config/settings.py, line 20

    env_file=".env",

    backend/config/settings.py, line 142

    # Keep it accepted to avoid startup crashes with older .env files.

    Show more

    web/next.config.ts, line 6

    const backendEnvPath = path.resolve(process.cwd(), "../backend/.env");

    .gitignore, line 16

    # Environment files

    .gitignore, line 17

    .env

    .gitignore, line 18

    .env.local

    Makefile, line 21

    # Backend (FastAPI + uvicorn). Reads PORT from backend/.env unless overridden.

  • 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

    web/package-lock.json, line 1

    {

    web/public/logo.png, line 1

    �PNG

  • 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 4f74f75a1651. can delete files. requests shell access. No manifest field names shell or command execution. install fetches a script from the network. The docs document an installer that pipes a download into a shell. accepts a host from input, with no fixed list in this file. reads a credential or environment file. a file was over the read cap and was not fully read. the file cap was reached before every file was read.

Date and source

Date checked:

View source

github.com

Commit graded: 4f74f75a1651b2e4a12551661abd7d0ca965231e

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