Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Sdr Mcp

Sdr Mcp, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade C

One Medium finding. Read the report before installing.

Graded by PlugVetRubric v2

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

INSTALL_REMOTE_SCRIPT

Why this grade

  • 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).

    docs/docker-resilience.md, line 105 curl -fsSL https://get.docker.com | 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.

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

    docker/gnuradio/demod_service.py, line 22

    self._process: subprocess.Popen[str] | None = None

    docker/gnuradio/demod_service.py, line 37

    result = subprocess.run(

    docker/gnuradio/demod_service.py, line 86

    self._process = subprocess.Popen(cmd) # noqa: S603

    Show more

    scripts/cua-smoke.py, line 288

    subprocess.run(["taskkill", "/F", "/IM", f"{name}.exe", "/T"], capture_output=True, timeout=10)

    scripts/cua-smoke.py, line 309

    r = subprocess.run([installer, "/S"], capture_output=True, timeout=120)

    scripts/cua-smoke.py, line 331

    subprocess.Popen([exe], cwd=INSTALL_DIR, env=env)

    scripts/cua-smoke.py, line 725

    r = subprocess.run([uninstaller, "/S"], capture_output=True, timeout=60)

    scripts/cua-smoke.py, line 728

    remaining = subprocess.run(

    scripts/cua-webapp-test.py, line 117

    os.remove(path)

  • Install and update

    Serious

    install fetches a script from the network.

    INSTALL_REMOTE_SCRIPT

    docs/docker-resilience.md, line 105

    curl -fsSL https://get.docker.com | sh

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    .cursor/skills/full-stack-developer/SKILL.md, line 208

    const response = await fetch('/api/chat/stream', {

    .cursor/skills/mcp-server-developer/modules/minimal-mcp-server.md, line 247

    curl -X POST http://127.0.0.1:3333/mcp \

    mcpb/assets/prompts/user.md, line 817

    curl http://127.0.0.1:10892/api/health

    Show more

    mcpb/assets/prompts/user.md, line 820

    curl http://127.0.0.1:10892/api/status

    mcpb/assets/prompts/user.md, line 823

    curl -X POST http://127.0.0.1:10892/api/chat -H "Content-Type: application/json" -d '{"message": "spectrum"}'

    mcpb/assets/prompts/user.md, line 826

    curl -X POST http://127.0.0.1:10892/api/invoke -H "Content-Type: application/json" -d '{"tool": "sdr_device", "params": {"operation": "health"}}'

    scripts/cua-smoke.py, line 335

    resp = urllib.request.urlopen(f"{BACKEND_URL}{HEALTH_PATH}", timeout=5)

    scripts/cua-smoke.py, line 405

    resp = urllib.request.urlopen(f"{BACKEND_URL}{FEATURE_PATH}", timeout=5)

    scripts/cua-smoke.py, line 419

    resp = urllib.request.urlopen(f"{BACKEND_URL}{DIAGNOSTICS_PATH}", timeout=5)

    scripts/cua-smoke.py, line 630

    with urllib.request.urlopen(req, timeout=5) as resp:

    scripts/cua-smoke.py, line 665

    with urllib.request.urlopen(req, timeout=5) as resp:

    scripts/cua-webapp-test.py, line 183

    r = urllib.request.urlopen(url, timeout=3) # noqa: S310 - localhost health poll from config

    scripts/cua-webapp-test.py, line 203

    r = urllib.request.urlopen(url, timeout=3)

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    native/build.ps1, line 70

    # Bundle .env.example (NOT .env - dev .env has personal API keys)

    native/build.ps1, line 71

    $envExample = "$Root\.env.example"

    native/build.ps1, line 73

    Copy-Item $envExample "$ResourceDir\.env.example" -Force

    Show more

    native/build.ps1, line 74

    Write-Host " Bundled .env.example OK" -ForegroundColor Green

    native/build.ps1, line 76

    Write-Host " WARNING: .env.example not found at repo root" -ForegroundColor DarkYellow

    native/src/backend.rs, line 143

    .env(ENV_PORT, BACKEND_PORT.to_string())

    native/src/backend.rs, line 144

    .env(ENV_HOST, "127.0.0.1")

    native/src/backend.rs, line 145

    .env(ENV_TAURI, "1")

  • 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.

    OBFUSCATION_FILE_OVER_READ_CAP

    uv.lock, line 1

    version = 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 51ba1c1f6455. can delete files. install fetches a script from the network. can reach a host that is not written as a fixed address. can reach www.sigidwiki.com. The description does not name that host. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: 51ba1c1f64552b07815c83148472a4f4f771258f

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