Agent Guard

Name: Agent Guard
Author: naufalafif

by naufalafif

Native macOS menu bar app that scans MCP servers and AI agent skills for security threats

2 0 tools GitHub

No known CVEs

No license

Maintained

Last commit 46d ago

Works with most clients

Transport: http

0 tools

Grade F

Edit this pageView history

Security

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktophttp · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "agent-guard": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

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Read me

What Agent Guard does

Native macOS menu bar app that scans your MCP servers and AI agent skills for security threats.

Test This Server

This server supports HTTP transport. Be the first to test it — help the community know if it works.

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Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

31/100across 5 weighted dimensions

How we score →

0255075100

−69

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Community

Reviews

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How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Agent Guard safe to use?: Agent Guard has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install Agent Guard?: Agent Guard can be installed by cloning its GitHub repository and following the setup instructions in the README.
What AI clients work with Agent Guard?: Agent Guard is compatible with claude-desktop, cursor, claude-code. It uses http transport.
Is Agent Guard actively maintained?: Agent Guard is recently maintained — last commit was 46 days ago. It has 2 GitHub stars.

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Community

Discussion

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Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Scanner

What it checks

mcp-scanner

MCP server configs — Claude Desktop, Cursor, VS Code, Windsurf, Zed

skill-scanner

Agent skill packages — Cursor rules, Claude skills, and other agent instruction files

Usage

Menu bar icon — green = all clear, red + count = findings, half shield = scanning

Click the icon to see findings, grouped by MCP servers and AI skills

Expand a finding to see details — threat name, category, rule

Mute false positives with confirmation, unmute anytime

Settings (gear icon) — scan interval, skill directories, launch at login

Tip: AgentGuard scans common locations (~/.cursor/rules, ~/.claude/skills, ~/.claude/plugins, etc.) by default — including Claude Code marketplace plugins. If you keep skills inside project directories, add your workspace path in Settings.

Frequently Asked Questions

Is Agent Guard safe to use?

Agent Guard has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install Agent Guard?

Agent Guard can be installed by cloning its GitHub repository and following the setup instructions in the README.

What AI clients work with Agent Guard?

Agent Guard is compatible with claude-desktop, cursor, claude-code. It uses http transport.

Is Agent Guard actively maintained?

Agent Guard is recently maintained — last commit was 46 days ago. It has 2 GitHub stars.

AgentGuard

Native macOS menu bar app that scans your MCP servers and AI agent skills for security threats.

Install

brew tap naufalafif/tap
brew install --cask agent-guard

Or build from source:

git clone https://github.com/naufalafif/agent-guard.git
cd agent-guard
make install

Requires macOS 13+. The app auto-installs scanner dependencies on first launch.

What it scans

Scanner	What it checks
mcp-scanner	MCP server configs — Claude Desktop, Cursor, VS Code, Windsurf, Zed
skill-scanner	Agent skill packages — Cursor rules, Claude skills, and other agent instruction files

Usage

Menu bar icon — green = all clear, red + count = findings, half shield = scanning
Click the icon to see findings, grouped by MCP servers and AI skills
Expand a finding to see details — threat name, category, rule
Mute false positives with confirmation, unmute anytime
Settings (gear icon) — scan interval, skill directories, launch at login

Tip: AgentGuard scans common locations (~/.cursor/rules, ~/.claude/skills, ~/.claude/plugins, etc.) by default — including Claude Code marketplace plugins. If you keep skills inside project directories, add your workspace path in Settings.

Uninstall

brew uninstall --cask agent-guard
rm -rf ~/.cache/mcp-scan ~/.config/mcp-scan   # optional: remove data

Contributing

See CONTRIBUTING.md for development setup, architecture, and CI/CD details.

License

MIT