Skills/npm/mcp-setup

mcp-setup@3.3.0

VERIFIED· install only

Publisher claims: "Setup wizard and configuration for MongoDB MCP server" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher mongodb-js · publishing for 582 daysInstalls 341KLast detonated 5d ago
$claude mcp add mcp-setup -- npx -y @mongodb-js/mcp-setup
WatchReport an issue

Coverage

Nothing executable in the bundle ran; the trace covers the install step only.
Tested
every file read, file written and host contacted by what ran
Not tested
use of the skill by an agent

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (1 scenario; nothing executable in the bundle ran; the trace covers the install step only) on 2026-11-09 and scored it 90/100 (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 · 1 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.0sprocessscript backend runs setup only
0.0sprocessscript backend runs setup only
0.0sprocessno install scripts to re-run

Static findings

MEDIUM
npx invocation of non-well-known packagedist/installSkills.js:57 · npx invocation of non-well-known package — may execute untrusted code// Spawn-level error (npx missing, etc.). Print the message ourselvesFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagedist/installSkills.js:70 · npx invocation of non-well-known package — may execute untrusted codeconsole.log(` npx ${args.join(" ")}`);Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
MCP server using network transport (SSE/HTTP)dist/aiTool.js:103 · MCP server using network transport (SSE/HTTP) — data sent over network// Default key is mcpServers, but we will use this function to override in subclasses (e.g. VS Code uses "servers").Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
File type combined with upload actiondist/installSkills.js:67 · File type combined with upload action — agent may exfiltrate local data filesconsole.log(chalk.red(`Agent skills install failed (exit ${exitCode}). Setup completed, but skills were not installed. See the CLI output above for details.`));Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.
AST07

Cost to the agent

Instructions loaded
≈41 tok
1 file · 19 in bundle

Tokens estimated at four characters each. Skills load their instruction text when triggered; the figure is what that costs.

Known vulnerabilities

No advisories in OSV for @mongodb-js/mcp-setup@3.3.0 as of 5d ago. This is the package itself, not its dependencies.