Skills/npm/lighthouse-mcp

lighthouse-mcp@0.1.22

VERIFIED

Publisher claims: "MCP server for Google Lighthouse performance metrics" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher priyankark · publishing for 586 daysInstalls 10,888Last detonated 24 h ago
$claude mcp add lighthouse-mcp -- npx -y lighthouse-mcp
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Coverage

Server started and answered tools/list.
Tested
MCP initialize and tools/list · every tool description, for hidden instructions · every file read, file written and host contacted by what ran
Not tested
what the tools do when called with real credentials

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 code
What the honeypot saw
no credential files read · no network
What we could not test
what the tools do when called with real credentials

Reasonable to connect. No credential asked for, no third-party host named, Server started and answered tools/list.

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) on 2026-11-13 and scored it 93/100 (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 · 39 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
18sprocessdependency install exit 0
38sclaimed2 tools: run_audit, get_performance_score
38stools299dc037a110b926
38stools109692f9359450fc
38sprocessscript backend runs setup only
38sprocessno install scripts to re-run

Static findings

MEDIUM
File permission modification commandpackage.json:15 · File permission modification command — agent changes file ownership/permissions"build": "tsc && chmod +x build/index.js",Fix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05

No other findings across 699 lines in 8 files.

Cost to the agent

Instructions loaded
≈50 tok
1 file · 8 in bundle
Tool list per prompt
≈224 tok
2 tools · 112 per tool
Handshake
1198 ms
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 36

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 lighthouse-mcp@0.1.22 as of 24 h ago. This is the package itself, not its dependencies.