Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Agentic Experiments

Agentic Experiments, 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.

Pattern found, check before installing

The checks matched a pattern that needs a closer look. It does not mean the code is harmful. Read the quoted lines below.

  • NETWORK_HOST_FROM_INPUT High

    host from input plus a credential path in operative code

NETWORK_HOST_FROM_INPUT SECRETS_PATH_CREDENTIAL

Why this grade

  • NETWORK_HOST_FROM_INPUT High

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

    src/aexp/jupyter.py, line 410 with urllib.request.urlopen(req, timeout=timeout) as resp: # noqa: S310 - explicit http(s) only

  • SECRETS_PATH_CREDENTIAL Medium

    Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).

    src/aexp/airgapped/__init__.py, line 28 See ``docs/airgapped.md`` for the SSH setup recipe (``~/.ssh/config``

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

    src/aexp/cli.py, line 1061

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

    src/aexp/cli.py, line 1801

    the job's resolved sp, and runs it via ``subprocess.run(shell=True)``

    src/aexp/jupyter.py, line 180

    result = subprocess.run(

    Show more

    src/aexp/queue.py, line 966

    ) -> tuple[subprocess.Popen[str], int | None]:

    src/aexp/queue.py, line 993

    proc = subprocess.Popen(command, **popen_kwargs)

    src/aexp/queue.py, line 1000

    proc = subprocess.Popen(command, **popen_kwargs)

    src/aexp/queue.py, line 1020

    ``subprocess.Popen(..., shell=True)`` inside :func:`run_lifecycle`

    src/aexp/queue.py, line 1305

    ``subprocess.Popen(shell=True)`` spawns.

  • Install and update

    Note

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

    INSTALL_DOCUMENTED_INSTALLER

    docs/mcp.md, line 29

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

  • Network

    Serious

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

    NETWORK_HOST_FROM_INPUT

    src/aexp/jupyter.py, line 410

    with urllib.request.urlopen(req, timeout=timeout) as resp: # noqa: S310 - explicit http(s) only

    src/aexp/airgapped/client.py, line 115

    def fetch(self, *, timeout: float | None = None) -> RelayResult:

    CHANGELOG.md, line 782

    `pull()`, `fetch()`, `status()`, `rebase()`, `push(branch="HEAD",

    Show more

    docs/airgapped.md, line 151

    relay.fetch() # git fetch --all --prune

    src/aexp/scaffold/docs/setup/jupyter-mcp.md, line 562

    | `ws://127.0.0.1:<port>/api/kernels/<id>/channels` | Kernel WebSocket (used by MCP_SERVER mode kernel-client) |

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_CREDENTIAL

    src/aexp/airgapped/__init__.py, line 28

    See ``docs/airgapped.md`` for the SSH setup recipe (``~/.ssh/config``

    src/aexp/airgapped/_relay.py, line 32

    See ``docs/airgapped.md`` for setup (the ``~/.ssh/config`` host alias,

    src/aexp/airgapped/_relay.py, line 253

    "It should name an ~/.ssh/config Host alias (auth/keys/MFA live "

    Show more

    src/aexp/airgapped/_relay.py, line 427

    SSH host (ideally an ``~/.ssh/config`` alias). Falls back to

    src/aexp/airgapped/_relay.py, line 514

    "Check: the host alias in ~/.ssh/config, known_hosts seeded "

    src/aexp/airgapped/_relay.py, line 726

    SSH host to use -- ideally a ``~/.ssh/config`` Host alias so

    src/aexp/airgapped/_relay.py, line 784

    f"mcpServers.{server_name}.env is not an object in {mcp_config_path}."

    src/aexp/airgapped/_relay.py, line 819

    help="SSH host alias to use (ideally an entry in ~/.ssh/config).",

  • 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

    poetry.lock, line 1

    # This file is automatically @generated by Poetry 2.3.2 and should not be changed by hand.

  • 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 11fd23103a04. requests shell access. The manifest names this permission. 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.

Date and source

Date checked:

View source

github.com

Commit graded: 11fd23103a04ab6c32a5d8727d502b2a04c20261

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