MCP, MCP server
gaff
For Claude Desktop, download gaff.mcpb from the latest release and open it.
Compatibility: Not stated.
Grade C
One Medium finding. Read the report before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
PERMISSION_SHELL_UNDECLARED
Why this grade
- PERMISSION_SHELL_UNDECLARED Medium
Runs shell commands that the manifest or description does not mention.
gaff_engine/paths.py, line 198
proc = subprocess.run(
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.
PERMISSION_SHELL_UNDECLARED
gaff_engine/paths.py, line 198
proc = subprocess.run(
surfaces/cli_test.py, line 43
p = subprocess.run([sys.executable, GAFF, *args], capture_output=True,
surfaces/cli_test.py, line 75
p = subprocess.run([sys.executable, "-c", boot], capture_output=True,
Show more
surfaces/mcp_client_test.py, line 79
self.p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE,
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
gaff_engine/epc.py, line 169
with urllib.request.urlopen(req, timeout=REQUEST_TIMEOUT_SECONDS) as resp:
gaff_engine/flips.py, line 121
with urllib.request.urlopen(req, timeout=REQUEST_TIMEOUT_SECONDS) as resp:
gaff_engine/hpi.py, line 220
with urllib.request.urlopen(req, timeout=REQUEST_TIMEOUT_SECONDS) as resp:
Show more
gaff_engine/landreg.py, line 313
# Guarded like the sibling hpi fetch (same exception tuple), but audibly:
gaff_engine/landreg.py, line 320
with urllib.request.urlopen(req, timeout=REQUEST_TIMEOUT_SECONDS) as resp:
gaff_engine/tools.py, line 1390
"misspelling, or a failed fetch (a warning names which)"),
surfaces/cli_test.py, line 7
``urllib.request.urlopen`` (and zeroes the pacing sleeps), so the wire is never
surfaces/cli_test.py, line 64
"urllib.request.urlopen = "
Secrets
Note
reads an environment variable.
SECRETS_ENV_READ
gaff_engine/anthropic_models.py, line 90
if os.environ.get("ANTHROPIC_API_KEY"):
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
gaff_engine/data/flips/leam.json, line 1
[
gaff_engine/data/hpi/warwick_2019-02.json, line 1
{"_about": "http://landregistry.data.gov.uk/data/ukhpi/region/warwick/month/2019-02", "averagePrice": 306688, "averagePriceCash": 291976, "averagePriceDetached": 538646, "averagePr
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 61f272664303. requests shell access. No manifest field names shell or command execution. can reach a host that is not written as a fixed address. reads an environment variable. 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:
github.com
Commit graded: 61f2726643034db8a1ceb9c638e6ffe9be0cb9a9
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.