Skills/PyPI/mcpwatch

mcpwatch@0.1.0

VERIFIED· not started

Publisher claims: "Security scanner for MCP (Model Context Protocol) servers — locally, no phone-home" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher federico-chiaradia-chiaradiafederico0 · publishing for 198 daysInstalls 16Last detonated 3d ago
$claude mcp add mcpwatch -- uvx mcpwatch
WatchReport an issue

Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
GITHUB_TOKEN
Where it talks to
no vendor host named in the codeAlso githubusercontent.com — not the publisher's domain; check what for before connecting.
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names githubusercontent.com as well as its own vendor. The guard injects GITHUB_TOKEN only into requests to the host you bind (and its subdomains) and refuses the rest.

$vet-skills run --net declared -- uvx mcpwatch

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-11 and scored it 87/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.1sprocessdependency install exit 1 ·
0.1sclaimednot started: dependency install failed (exit 1); the server itself was not observed
0.1sprocessscript backend runs setup only
0.1sprocessno install scripts to re-run

Static findings

MEDIUM
Python subprocess execution detectedtests/fixtures/aegis004/safe_destructive_with_auth.py:30 · Python subprocess execution detectedreturn subprocess.check_output(cmd, shell=True, text=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedsrc/mcpwatch/rules/aegis002_shell_injection.py:15 · Python subprocess execution detectedsubprocess.Popen(self.command, shell=True, ...) where self.command is builtFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedscripts/sample.py:57 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedtests/fixtures/aegis002/safe_subprocess_literal.py:12 · Python subprocess execution detectedresult = subprocess.run("uptime", shell=True, capture_output=True, text=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedscripts/sample.py:64 · Python subprocess execution detectedsubprocess.run(["rmdir", "/s", "/q", str(dest)], shell=True, capture_output=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedtests/fixtures/aegis004/vulnerable_destructive_keyword.py:15 · Python subprocess execution detectedreturn subprocess.check_output(command, shell=True, text=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedtests/fixtures/aegis002/vulnerable_subprocess_fstring.py:15 · Python subprocess execution detectedresult = subprocess.run(command, shell=True, capture_output=True, text=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
OS command execution function call detectedtests/fixtures/aegis002/vulnerable_os_system.py:1 · OS command execution function call detected# FIXTURE: vulnerable — os.system() with a variable command (always uses shell).Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
OS command execution function call detectedtests/fixtures/aegis002/vulnerable_os_system.py:13 · OS command execution function call detectedos.system(cmd)Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Python subprocess execution detectedtests/fixtures/aegis002/vulnerable_subprocess_fstring.py:4 · Python subprocess execution detected# subprocess.run(command, shell=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedtests/fixtures/aegis002/safe_subprocess_list.py:13 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
OS command execution function call detectedtests/test_aegis002.py:33 · OS command execution function call detected"""os.system(variable) must fire — shell is always invoked."""Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Python subprocess execution detectedtests/test_aegis002.py:45 · Python subprocess execution detected"""subprocess.run('uptime', shell=True) with a literal must NOT fire."""Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedtests/test_aegis002.py:22 · Python subprocess execution detected"""subprocess.run(f-string, shell=True) must fire."""Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedtests/test_aegis002.py:51 · Python subprocess execution detected"""subprocess.run(['nmap', target]) without shell=True must NOT fire."""Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05

Cost to the agent

Instructions loaded
≈55 tok
1 file · 46 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for mcpwatch@0.1.0 as of 3d ago. This is the package itself, not its dependencies.