Skills/PyPI/mcp-host-bridge

mcp-host-bridge@0.2.2

CAUTION· not started

Publisher claims: "A tiny, configurable loopback-to-remote TCP/UDP relay so sandboxed MCP clients (e.g. Claude Desktop) can reach a service on another host." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher sbrunner-atx · publishing for 144 daysInstalls 19Last detonated 40 h ago
What would fix thisWatchDispute verdict

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: Caution 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
no credential variables read in the code
Where it talks to
no vendor host named in the codeAlso apple.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 under the guard. Not started: dependency install failed; the server itself was not observed. The code names no credential variable; the guard pins the network to what the honeypot saw and logs every call.

$vet-skills run --net declared -- uvx mcp-host-bridge

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 2026-11-12 and scored it 73/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: README tells the reader to click past SmartScreen; README tells the reader to bypass SmartScreen. 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 detectedsrc/mcp_host_bridge/install.py:150 · Python subprocess execution detectedsubprocess.run(["launchctl", "unload", plist], capture_output=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
CRITICAL
README tells the reader to click past SmartScreenREADME.md:183- **Windows (SmartScreen):** **More info → Run anyway**.Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
Python subprocess execution detectedsrc/mcp_host_bridge/install.py:159 · Python subprocess execution detectedout = subprocess.run(["launchctl", "list"], capture_output=True, text=True).stdoutFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedsrc/mcp_host_bridge/install.py:105 · Python subprocess execution detectedsubprocess.run(["launchctl", "unload", plist], 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 detectedsrc/mcp_host_bridge/install.py:141 · Python subprocess execution detectedsubprocess.run(["launchctl", "unload", plist], 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 detectedsrc/mcp_host_bridge/install.py:142 · Python subprocess execution detectedsubprocess.run(["launchctl", "load", plist], capture_output=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
CRITICAL
README tells the reader to bypass SmartScreenREADME.md:183- **Windows (SmartScreen):** **More info → Run anyway**.Fix: Pin versions and sources; vendor anything fetched at install time.
AST06

Cost to the agent

Instructions loaded
≈72 tok
1 file · 19 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 mcp-host-bridge@0.2.2 as of 39 h ago. This is the package itself, not its dependencies.

What would make this Verified

7 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%
  1. README tells the reader to click past SmartScreen≈ +9 on the totalPin versions and sources; vendor anything fetched at install time.
  2. README tells the reader to bypass SmartScreen≈ +9 on the totalPin versions and sources; vendor anything fetched at install time.
  3. Unclaimed publisher≈ +8 on the totalClaim sbrunner-atx: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
  4. Python subprocess execution detected≈ +2 on the totalBuild commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
Publish a new version to PyPI, then queue it here. Not your skill? Claim the handle to get verdict changes by email.Claim sbrunner-atxPropose a patch to the maintainer