MCP, MCP server
MemoCat Shared AI Memory
MemoCat Shared AI Memory, an MCP server listed in the PlugVet directory.
Compatibility: Not stated.
Grade C
One Medium finding. Read the findings before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit c904d61d9bbc, unchanged since the check below.
PERMISSION_SHELL_UNDECLARED
Why this grade
- PERMISSION_SHELL_UNDECLARED Medium
Runs shell commands that the manifest or description does not mention.
montycat_mcp/bootstrap.py, line 504
completed = subprocess.run( # noqa: S603 - our own verified binary
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
requests shell access. No manifest field names shell or command execution. can delete files.
PERMISSION_SHELL_UNDECLARED PERMISSION_DELETE_FILES
montycat_mcp/bootstrap.py, line 504
completed = subprocess.run( # noqa: S603 - our own verified binary
montycat_mcp/bootstrap.py, line 574
shutil.rmtree(lock)
montycat_mcp/bootstrap.py, line 657
shutil.rmtree(cache)
Show more
montycat_mcp/bootstrap.py, line 725
lambda: subprocess.run(command, capture_output=True, timeout=30).returncode == 0
montycat_mcp/bootstrap.py, line 763
lambda: subprocess.run(args, capture_output=True, timeout=120).returncode == 0
montycat_mcp/bootstrap.py, line 816
subprocess.Popen( # noqa: S603 - our own verified binary
montycat_mcp/bootstrap.py, line 853
existing = subprocess.run( # noqa: S603
montycat_mcp/bootstrap.py, line 858
mapped = subprocess.run( # noqa: S603
Install and update
Note
README documents an installer that pipes a download into a shell.
INSTALL_DOCUMENTED_INSTALLER
plugins/montycat-mcp/README.md, line 26
curl -LsSf https://astral.sh/uv/install.sh | sh
Network
Concern
can reach repo-deb.montygovernance.com. The description does not name that host. can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST
montycat_mcp/bootstrap.py, line 58
"curl -fsSL https://repo-deb.montygovernance.com/KEY.gpg "
montycat_mcp/bootstrap.py, line 86
return urllib.request.urlopen(request, timeout=timeout) # noqa: S310
montycat_mcp/bootstrap.py, line 185
with socket.create_connection((host, port), timeout=timeout):
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_UNCONFIRMED
montycat_mcp/server.py, line 310
password=os.environ.get("MONTYCAT_PASSWORD", ""),
montycat_mcp/server.py, line 357
return os.environ.get("MONTYCAT_DEFAULT_KEYSPACE", "").strip() or "memory"
montycat_mcp/server.py, line 365
return os.environ.get("MONTYCAT_SHARED_KEYSPACE", "mem_shared")
Show more
.gitignore, line 9
venv/
.mcpbignore, line 12
*.mcpb
compose.yaml, line 8
MONTYCAT_PASSWORD: ${MONTYCAT_PASSWORD:?set MONTYCAT_PASSWORD in .env}
compose.yaml, line 36
MONTYCAT_PASSWORD: ${MONTYCAT_PASSWORD:?set MONTYCAT_PASSWORD in .env}
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 c904d61d9bbc. requests shell access. No manifest field names shell or command execution. can delete files. README documents an installer that pipes a download into a shell. can reach repo-deb.montygovernance.com. The description does not name that host. can reach a host that is not written as a fixed address. reads a credential or environment file.
Date and source
Date checked:
github.com
Commit graded: c904d61d9bbc309a182124d97a2b7482e0529359
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