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lazaretto

lazaretto is an MCP server for Cursor from jamesdfinance-dev/lazaretto-mcp. Its token cost is not measured, scanned A, original, MIT.

A local MCP server for checking lockfiles for malware and scanning skills, tools, or packages before installation. The pre-install scan is paid, while the lockfile check is free.

In plain words
What is it for?
Checking project lockfiles and reviewing a skill, tool, or package before installing it.
Why use it?
It helps identify potentially malicious dependencies before they enter a project or agent setup. It runs locally from the lazaretto-mcp package.

MCP server for Cursor

Written for Cursor: shipped in a Cursor plugin.

Part of the lazaretto plugin — 1 MCP server shipped together

not rated 1repo changed 6d ago A scan Socket: warn tokens not measured original MIT

Good fit Checking project lockfiles and reviewing a skill, tool, or package before installing it.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/jamesdfinance-dev/lazaretto-mcp/lazaretto
View source ↗ jamesdfinance-dev/lazaretto-mcp lazaretto.dev
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/jamesdfinance-dev/lazaretto-mcp

Made for: Cursor.

Or install lazaretto, the plugin that ships this one along with the rest of its 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for lazaretto

README.md
[![agentmods](https://agentmods.dev/badge/mcp/jamesdfinance-dev/lazaretto-mcp/lazaretto/github.svg)](https://agentmods.dev/mcp/jamesdfinance-dev/lazaretto-mcp/lazaretto)
Your own site
<a href="https://agentmods.dev/mcp/jamesdfinance-dev/lazaretto-mcp/lazaretto"><img src="https://agentmods.dev/badge/mcp/jamesdfinance-dev/lazaretto-mcp/lazaretto/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for lazaretto

Your own site · 80×15
<a href="https://agentmods.dev/mcp/jamesdfinance-dev/lazaretto-mcp/lazaretto"><img src="https://agentmods.dev/badge/mcp/jamesdfinance-dev/lazaretto-mcp/lazaretto.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits How audits are shown
Origin original No closer match found in the catalogue.
Security

Grade A, and why

lazaretto scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

server.json · 12 lines

What it actually says

{
  "lazaretto": {
    "command": "npx",
    "args": [
      "-y",
      "lazaretto-mcp"
    ],
    "env": {
      "LAZARETTO_API_KEY": ""
    }
  }
}
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago Changed · +2 lines fdaf1c9c3ee1
  2. 2mo ago First seen · 10 lines scan A 54a9983f559d

Subscribe to this mod's changes

lazaretto is an MCP server published in the GitHub repository jamesdfinance-dev/lazaretto-mcp (1 stars, last pushed 3d ago), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Securityai-agentsmalware-detectionmcpmcp-servermodelcontextprotocol
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