Skills/npm/mcpgrade

mcpgrade@0.4.0

VERIFIED

Publisher claims: "Lighthouse for MCP servers — lint your MCP server for agent usability, not just spec compliance" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher tengbyte · joined 0 days agoInstalls 5,406Last detonated 2 h ago
$claude mcp add mcpgrade -- npx -y mcpgrade
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Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-11-05 and scored it 85/100 (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 · 2 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
1.6sprocessdependency install exit 1
1.9sprocessexec /usr/bin/timeout
1.9sprocessexited 1: Node.js v22.23.4
1.9sclaimedno tools/list reply (exit 1)
1.9sprocessscript backend runs setup only

Static findings

MEDIUM
npx invocation of non-well-known packagedist/serve.js:94 · npx invocation of non-well-known package — may execute untrusted codeFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
File type combined with upload actiondist/cli.js:90 · File type combined with upload action — agent may exfiltrate local data filesFix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.
AST07