Grades are a hygiene check, not a security guarantee.

Claude Code, Plugin

Astronomer Data Agents

Data engineering for Apache Airflow and Astronomer.

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 486ee63d01f8, unchanged since the check below.

NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED INSTALL_DOCUMENTED_INSTALLER SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • NETWORK_NO_FIXED_HOST Low

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

    astro-airflow-mcp/AGENTS.md, line 58 response = requests.get(url, headers=headers)

  • NETWORK_UNNAMED_HOST Low

    Calls a fixed host that the description does not name.

    astro-airflow-mcp/AGENTS.md, line 58 response = requests.get(url, headers=headers)

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    skills/airflow-plugins/SKILL.md, line 530 # .env

  • PERMISSION_SHELL_DECLARED Note

    Runs shell commands, and the manifest or description says so.

    astro-airflow-mcp/src/astro_airflow_mcp/telemetry.py, line 202 proc = subprocess.Popen( # nosec B603 - no untrusted input, script and args are hardcoded

  • INSTALL_DOCUMENTED_INSTALLER Note

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

    skills/analyzing-data/scripts/cli.py, line 50 "Install with: curl -LsSf https://astral.sh/uv/install.sh | sh", err=True

  • SECRETS_ENV_READ Note

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

    astro-airflow-mcp/src/astro_airflow_mcp/__main__.py, line 94 default=os.getenv("AIRFLOW_AUTH_TOKEN"),

  • OBFUSCATION_FILE_OVER_READ_CAP Note

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

    astro-airflow-mcp/uv.lock, line 1 version = 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.

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

    astro-airflow-mcp/src/astro_airflow_mcp/telemetry.py, line 202

    proc = subprocess.Popen( # nosec B603 - no untrusted input, script and args are hardcoded

    astro-airflow-mcp/src/astro_airflow_mcp/discovery/astro_cli.py, line 114

    result = subprocess.run( # nosec B603 - astro CLI path is validated via shutil.which

    skills/analyzing-data/scripts/kernel.py, line 134

    subprocess.run(

    Show more

    skills/analyzing-data/scripts/kernel.py, line 141

    subprocess.run(

    skills/analyzing-data/scripts/kernel.py, line 150

    result = subprocess.run(

    skills/analyzing-data/scripts/kernel.py, line 432

    result = subprocess.run(

    skills/migrating-dagster-to-airflow/scripts/validate_dag.py, line 117

    proc = subprocess.run(

    skills/migrating-dagster-to-airflow/scripts/validate_dag.py, line 192

    proc = subprocess.run(

  • Install and update

    Note

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

    INSTALL_DOCUMENTED_INSTALLER

    skills/analyzing-data/scripts/cli.py, line 50

    "Install with: curl -LsSf https://astral.sh/uv/install.sh | sh", err=True

    skills/analyzing-data/scripts/kernel.py, line 112

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

    skills/cosmos-dbt-fusion/SKILL.md, line 54

    RUN curl -fsSL https://public.cdn.getdbt.com/fs/install/install.sh | sh -s -- --update

  • Network

    Concern

    can reach a host that is not written as a fixed address. can reach files.example.com. The description does not name that host. can reach airflow.apache.org. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    astro-airflow-mcp/AGENTS.md, line 58

    response = requests.get(url, headers=headers)

    astro-airflow-mcp/AGENTS.md, line 71

    response = httpx.get(f"{url}/api/v2/dags")

    astro-airflow-mcp/scripts/run-integration-tests.sh, line 36

    if curl -sf "$AIRFLOW_URL/health" > /dev/null 2>&1; then

    Show more

    astro-airflow-mcp/scripts/run-integration-tests.sh, line 38

    elif curl -sf "$AIRFLOW_URL/api/v2/monitor/health" > /dev/null 2>&1; then

    astro-airflow-mcp/scripts/run-integration-tests.sh, line 49

    VERSION_RESPONSE=$(curl -sf "$AIRFLOW_URL/api/v2/version" 2>/dev/null || echo "")

    astro-airflow-mcp/scripts/run-integration-tests.sh, line 55

    VERSION_RESPONSE=$(curl -sf -u "$AIRFLOW_USERNAME:$AIRFLOW_PASSWORD" "$AIRFLOW_URL/api/v1/version" 2>/dev/null || echo "")

    astro-airflow-mcp/src/astro_airflow_mcp/auth.py, line 131

    # Try credential-less fetch (for all_admins mode)

    astro-airflow-mcp/src/astro_airflow_mcp/cli/registry.py, line 86

    response = httpx.get(url, timeout=30, follow_redirects=True)

    skills/debugging-dags/SKILL.md, line 80

    curl -s https://pypi.org/pypi/<pkg>/json | jq '.releases | to_entries | map({version: .key, uploaded: .value[0].upload_time}) | sort_by(.uploaded) | reverse | .[:5]'

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    astro-airflow-mcp/src/astro_airflow_mcp/__main__.py, line 94

    default=os.getenv("AIRFLOW_AUTH_TOKEN"),

    astro-airflow-mcp/src/astro_airflow_mcp/__main__.py, line 106

    default=os.getenv("AIRFLOW_PASSWORD"),

    skills/airflow-plugins/SKILL.md, line 530

    # .env

    Show more

    astro-airflow-mcp/src/astro_airflow_mcp/cli/context.py, line 112

    if os.environ.get("AIRFLOW_AUTH_TOKEN"):

    astro-airflow-mcp/src/astro_airflow_mcp/cli/context.py, line 127

    if os.environ.get("AIRFLOW_PASSWORD"):

    astro-airflow-mcp/src/astro_airflow_mcp/cli/context.py, line 169

    os.environ.get("AIRFLOW_AUTH_TOKEN")

    astro-airflow-mcp/src/astro_airflow_mcp/cli/context.py, line 171

    or os.environ.get("AIRFLOW_PASSWORD")

    skills/airflow-plugins/SKILL.md, line 201

    AIRFLOW_PASS = os.environ.get("MYPLUGIN_PASSWORD", "admin")

    skills/airflow-plugins/SKILL.md, line 202

    AIRFLOW_TOKEN = os.environ.get("MYPLUGIN_TOKEN") # Astronomer Astro: Deployment API token

    skills/analyzing-data/scripts/warehouse.py, line 18

    env_path = get_config_dir() / ".env"

    skills/analyzing-data/scripts/warehouse.py, line 21

    if Path(".env").exists():

    skills/analyzing-data/scripts/warehouse.py, line 22

    load_dotenv(".env", override=True)

    skills/troubleshooting-astro-deployments/SKILL.md, line 230

    astro deployment variable list --deployment-id <DEPLOYMENT_ID> --save --env .env.backup

    .gitignore, line 43

    # Environment variables

    .gitignore, line 44

    .env

    .gitignore, line 45

    .env.local

  • 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

    astro-airflow-mcp/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.

Note

Hygiene check of commit 486ee63d01f8. requests shell access. The manifest names this permission. 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 files.example.com. The description does not name that host. can reach airflow.apache.org. 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: 486ee63d01f8126c52fbc92c36cd36ec31708dcd

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