MCP, MCP server

Vinv

Vinv, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVet20/10/2026Rubric v2

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

Rescanned at commit 2d04f9cefc49, unchanged since the check below.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV INSTALL_DOCUMENTED_INSTALLER SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED

Why this grade

PERMISSION_DELETE_FILES Low
Contains a call that can delete files.
bringup/src/bringup/runner.py, line 2356 out = subprocess.run(
NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
bringup/src/bringup/runner.py, line 2305 with socket.create_connection(("127.0.0.1", port), timeout=1.0):
SECRETS_PATH_DOTENV Low
Mentions a .env file.
bringup/src/bringup/runner.py, line 249 ".env",
INSTALL_DOCUMENTED_INSTALLER Note
Documentation shows an installer that pipes a download into a shell.
extension/src/engines/install.ts, line 38 : 'curl -LsSf https://astral.sh/uv/install.sh | sh';
SECRETS_ENV_READ Note
Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.
extension/esbuild.mjs, line 41 'process.env.VINV_POSTHOG_KEY': JSON.stringify(process.env.VINV_POSTHOG_KEY ?? ''),
OBFUSCATION_FILE_OVER_READ_CAP Note
A file was over the read cap and was not fully read.
uv.lock, line 1 version = 1
OBFUSCATION_FILE_CAP_REACHED Note
The 400 file cap was reached before every file was read.
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
Concern
can delete files.
PERMISSION_DELETE_FILES
bringup/src/bringup/runner.py, line 2356
out = subprocess.run(
bringup/src/bringup/runner.py, line 2377
out = subprocess.run(
bringup/src/bringup/runner.py, line 2389
out = subprocess.run(["ss", "-ltnp"], capture_output=True, text=True, timeout=15).stdout
Show more
bringup/src/bringup/runner.py, line 2404
out = subprocess.run(
bringup/src/bringup/runner.py, line 2414
out = subprocess.run(
bringup/src/bringup/runner.py, line 2428
subprocess.run(["taskkill", "/PID", str(pid), "/T", "/F"], capture_output=True, check=False)
bringup/src/bringup/runner.py, line 2559
subprocess.run(
bringup/src/bringup/runner.py, line 2574
def _terminate_process_group(proc: subprocess.Popen[bytes]) -> None:
exerciser/src/exerciser/functions.py, line 1759
# `(lambda: os.remove(p))()`. The old walk `continue`d here and inspected
exerciser/src/exerciser/sandbox.py, line 405
shutil.rmtree(self.root, onexc=_force_writable)
exerciser/src/exerciser/sandbox.py, line 407
shutil.rmtree(self.root, onerror=lambda f, p, e: _force_writable(f, p, e))
exerciser/src/exerciser/sandbox.py, line 1042
shutil.rmtree(root, ignore_errors=True)
exerciser/src/exerciser/sandbox.py, line 1045
shutil.rmtree(root, ignore_errors=True)
exerciser/src/exerciser/sandbox.py, line 1054
shutil.rmtree(root, ignore_errors=True)
exerciser/src/exerciser/service_doubles.py, line 1514
os.remove(self._path(Bucket, Key))
extension/scripts/e2e-vsix-run.mjs, line 237
fs.rmSync(temporary, { recursive: true, force: true });
Install and update
Note
The docs document an installer that pipes a download into a shell.
INSTALL_DOCUMENTED_INSTALLER
extension/src/engines/install.ts, line 38
: 'curl -LsSf https://astral.sh/uv/install.sh | sh';
extension/src/engines/install.ts, line 43
: "curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y";
extension/src/harness/harnessRunner.ts, line 153
: 'curl -fsSL https://claude.ai/install.sh | bash',
Show more
extension/src/harness/harnessRunner.ts, line 199
: 'Install the Cursor CLI (`curl https://cursor.com/install -fsS | bash`) and sign in with `agent login` (older installs: `cursor-agent login`).',
extension/src/harness/harnessRunner.ts, line 202
: 'curl https://cursor.com/install -fsS | bash',
packaging/vinv/pyproject.toml, line 109
before-all = "curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal"
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
bringup/src/bringup/runner.py, line 2305
with socket.create_connection(("127.0.0.1", port), timeout=1.0):
embedder/src/vinv_embedder/cli.py, line 46
with urllib.request.urlopen(
embedder/src/vinv_embedder/cli.py, line 174
with urllib.request.urlopen(url, timeout=5) as resp:
Show more
exerciser/src/exerciser/execute.py, line 164
with urllib.request.urlopen(req, timeout=timeout_s) as resp: # noqa: S310 (local trusted)
exerciser/src/exerciser/openapi.py, line 90
with urllib.request.urlopen(req, timeout=timeout) as resp: # noqa: S310 (local trusted URL)
extension/scripts/e2e-enhancer.mjs, line 60
const req = https.request(
extension/scripts/e2e-stall.mjs, line 48
const req = https.request(
extension/src/embedder/sidecar.ts, line 122
const req = http.get(`${EMBEDDER_BASE_URL}/health`, { timeout: timeoutMs }, (res) => {
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
bringup/src/bringup/runner.py, line 249
".env",
bringup/src/bringup/runner.py, line 619
".env",
extension/esbuild.mjs, line 41
'process.env.VINV_POSTHOG_KEY': JSON.stringify(process.env.VINV_POSTHOG_KEY ?? ''),
Show more
bringup/src/bringup/runner.py, line 3247
"assumptions are the thing to diagnose (missing `.env`, a dependency they "
bringup/src/bringup/runner.py, line 3305
"missing `.env` is a fix to make, not a reason to invent a different command. "
exerciser/src/exerciser/envconfig.py, line 15
Its settings then declare ``env_file="../.env"``, relative because the app runs
exerciser/src/exerciser/envconfig.py, line 16
from ``backend/``. Started at the repo root instead, ``../.env`` resolved
exerciser/src/exerciser/envconfig.py, line 446
#: Files a project uses to SHOW what its environment looks like. `.env` itself
exerciser/src/exerciser/envconfig.py, line 452
".env",
extension/scripts/e2e-enhancer.mjs, line 24
const apiKey = process.env.OPENAI_API_KEY;
extension/scripts/e2e-stall.mjs, line 19
const apiKey = process.env.OPENAI_API_KEY;
extension/src/telemetry/common.ts, line 30
process.env.VINV_POSTHOG_KEY || 'phc_nJPFyhrR2SowGbCxrgA8VSgpMKNPx4WE4mu94vKRwqkD';
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
uv.lock, line 1
version = 1
extension/package-lock.json, line 1
{
extension/src/test/traceMemory.test.ts, line 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 2d04f9cefc49. can delete files. The docs document an installer that pipes a download into a shell. can reach a host that is not written as a fixed address. 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: 20 Oct 2026

View source

github.com

Commit graded: 2d04f9cefc49f10ce76aa5b019d018421c654812

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

What was checked

Permissions

Install and update

Network

Secrets

Agent instructions

Obfuscation

Licence

Maintainer activity

Note

Date and source