Is mcp-server@2.22.5 safe to install?

mcp-server@2.22.5

VERIFIED

Publisher claims: "MCP Server for Mearl - enables AI to interact with Chrome browser requests and logs" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher mearl · joined 6 days agoInstalls 3,463Last detonated 2 h ago

$claude mcp add mcp-server -- npx -y @mearl/mcp-server

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KillerSkills ran it in the KillerSkills honeypot sandbox (1 scenario) on 2026-11-03 and scored it 86/100 (Verified). It did what it claims and nothing else we could detect: no undeclared network egress, no credential reads, no persistent instruction writes. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 1 scenarios · 0 deviations

t+CategoryObserved action

0.0sprocessno install scripts in bundle

0.0sprocessscript backend runs setup only

Static findings

MEDIUM

npx invocation of non-well-known packagedist/configure.js:250 · npx invocation of non-well-known package — may execute untrusted codeFix: Pin versions and sources; vendor anything fetched at install time.

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npx invocation of non-well-known packagedist/configure.js:247 · npx invocation of non-well-known package — may execute untrusted codeFix: Pin versions and sources; vendor anything fetched at install time.

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npx invocation of non-well-known packagedist/uninstall.js:5 · npx invocation of non-well-known package — may execute untrusted codeFix: Pin versions and sources; vendor anything fetched at install time.

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npx invocation of non-well-known packagedist/mcp-clients.js:72 · npx invocation of non-well-known package — may execute untrusted codeFix: Pin versions and sources; vendor anything fetched at install time.

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npx invocation of non-well-known packagedist/uninstall.d.ts:5 · npx invocation of non-well-known package — may execute untrusted codeFix: Pin versions and sources; vendor anything fetched at install time.

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npx invocation of non-well-known packagedist/mcp-clients.js:89 · npx invocation of non-well-known package — may execute untrusted codeFix: Pin versions and sources; vendor anything fetched at install time.

AST06