Grades are a hygiene check, not a security guarantee.

MCP, MCP server

QueraMCP

QueraMCP, an MCP server 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.

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/quera-authoring/references/tools/code-validators.md, line 93 curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.59.1

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

    Note

    requests shell access. The manifest names this permission.

    PERMISSION_SHELL_DECLARED

    skills/quera-authoring/references/judges/cypress.md, line 46

    subprocess.run("docker compose up --build -d --quiet-pull", shell=True, check=True)

    skills/quera-authoring/references/judges/cypress.md, line 48

    result = subprocess.run(

    skills/quera-authoring/references/judges/cypress.md, line 61

    subprocess.run("docker compose down -v", shell=True, check=False)

    Show more

    skills/quera-authoring/references/judges/devops.md, line 89

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

    skills/quera-authoring/scripts/review_lesson.py, line 30

    p = subprocess.run(cmd, capture_output=True, text=True, timeout=300)

    skills/quera-authoring/scripts/review_problem.py, line 29

    p = subprocess.run(

    skills/quera-authoring/templates/judges/cypress/test.py, line 11

    subprocess.run("docker compose up --build -d --quiet-pull", shell=True, check=True)

    skills/quera-authoring/templates/judges/cypress/test.py, line 13

    subprocess.run("npm install", shell=True, check=True)

  • Install and update

    Serious

    install fetches a script from the network.

    INSTALL_REMOTE_SCRIPT

    skills/quera-authoring/references/tools/code-validators.md, line 93

    curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.59.1

    skills/quera-authoring/references/tools/diagrams.md, line 408

    | **D2** | [https://github.com/terrastruct/d2](https://github.com/terrastruct/d2) | `curl -fsSL https://d2lang.com/install.sh \| sh -s --` | modern declarative - best auto-layout |

    skills/quera-authoring/references/tools/diagrams.md, line 172

    curl -fsSL https://d2lang.com/install.sh | sh -s --

    Show more

    skills/quera-authoring/scripts/render_diagrams.sh, line 45

    echo "⚠ d2 نصب نیست. اجرا کنید: curl -fsSL https://d2lang.com/install.sh | sh -s --"

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    skills/quera-authoring/references/judges/devops.md, line 112

    r = requests.get("http://localhost:8080/", timeout=5)

    skills/quera-authoring/references/judges/devops.md, line 119

    r = requests.get("http://localhost:8080/", timeout=5)

    skills/quera-authoring/references/tools/assets-and-data.md, line 172

    curl -o /home/claude/icon.svg \

    Show more

    skills/quera-authoring/references/tools/assets-and-data.md, line 188

    curl -L -o /tmp/vazir.zip https://github.com/rastikerdar/vazirmatn/releases/latest/download/Vazirmatn-fonts.zip

    skills/quera-authoring/references/tools/code-images.md, line 38

    wget -qO /tmp/silicon https://github.com/Aloxaf/silicon/releases/latest/download/silicon-linux

    skills/quera-authoring/references/tools/code-validators.md, line 152

    wget -qO /usr/local/bin/hadolint https://github.com/hadolint/hadolint/releases/latest/download/hadolint-Linux-x86_64

    skills/quera-authoring/references/tools/code-validators.md, line 168

    wget -qO /tmp/kubeconform.tar.gz \

    skills/quera-authoring/references/tools/persian-toolkit.md, line 196

    curl -L -o /tmp/vazir.zip https://github.com/rastikerdar/vazirmatn/releases/latest/download/Vazirmatn-fonts.zip

    skills/quera-authoring/references/writing/markdown-rules.md, line 405

    firm the logo URL → `tavily_extract` / `curl -O` to download → store under `images/co

    skills/quera-authoring/scripts/render_diagrams.sh, line 65

    curl -s -X POST -H "Content-Type: text/plain" \

    skills/quera-authoring/templates/judges/devops/test.py, line 32

    r = requests.get("http://localhost:8080/", timeout=5)

    skills/quera-authoring/templates/judges/devops/test.py, line 40

    r = requests.get("http://localhost:8080/", timeout=5)

    Dockerfile, line 28

    CMD python -c "import urllib.request;urllib.request.urlopen('http://127.0.0.1:8000/healthz').read()" || exit 1

    deploy/terraform/docker/main.tf, line 91

    test = ["CMD", "python", "-c", "import urllib.request;urllib.request.urlopen('http://127.0.0.1:${var.port}/healthz').read()"]

    docker-compose.yml, line 36

    test: ["CMD", "python", "-c", "import urllib.request;urllib.request.urlopen('http://127.0.0.1:8000/healthz').read()"]

    docker-compose.yml, line 77

    test: ["CMD", "python", "-c", "import urllib.request;urllib.request.urlopen('http://127.0.0.1:8000/healthz').read()"]

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    skills/quera-authoring/references/writing/markdown-rules.md, line 89

    ifest.yaml`, `cake.php`, `solution.sh`, `.env.example`, `terminal`, `nginx.conf`, `in

    skills/quera-authoring/scripts/run_persona_review.py, line 103

    if not os.environ.get("ANTHROPIC_API_KEY"):

    src/quera_mcp/ai.py, line 168

    generic = os.environ.get("QUERA_AI_API_KEY")

    Show more

    src/quera_mcp/config.py, line 143

    "csrf_token": os.environ.get("QUERA_CSRF_TOKEN"),

    src/quera_mcp/config.py, line 145

    "password": os.environ.get("QUERA_PASSWORD"),

    .dockerignore, line 7

    .ruff_cache

    .env.example, line 2

    # Copy to .env and fill in.

    .gitignore, line 8

    venv/

    README.md, line 404

    See [`.env.example`](.env.example) for a complete, annotated file. Use

    skills/quera-authoring/SKILL.md, line 197

    | A Linux / Bash problem | also read `examples/problems/linux/Hegxasalibism/README.md` (easy), `examples/problems/linux/Moteghayer-mohit-salibi/README.md` (medium-hard, .env proces

    skills/quera-authoring/references/writing/markdown-rules.md, line 128

    ```bash .env.example bash

  • 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 1f380e6efe52. requests shell access. The manifest names this permission. install fetches a script from the network. can reach a host that is not written as a fixed address. can reach github.com. The description does not name that host. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 1f380e6efe52a735f033fc0c1fd555f246a785f9

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