npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

@contail/agentguard

v1.1.3

Published

Reverse proxy firewall + LLM Gateway for AI agents

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

contailcontail

Keywords

agentguardaisecurityfirewallllmproxy

Readme

AgentGuard

Reverse Proxy Firewall + LLM Gateway for AI Agents

AgentGuard is a security layer for local autonomous AI agents. It provides inbound request filtering, LLM tool call interception, and outbound PII sanitization — all in a single Go binary with zero dependencies.

Install

npm install -g @contail/agentguard
agentguard setup

Or run directly:

npx @contail/agentguard setup

Features

  • Two-Stage Defense — 11-layer rule-based checks + optional remote trust evaluation
  • LLM Gateway — Multi-provider (OpenAI + Anthropic) tool call interception with SSE streaming support
  • MCP Security Gateway — Policy-based protection for IDE AI agents (Cursor, VS Code, Claude Desktop, Kiro)
  • Config Diagnosis — Automated security audit with auto-fix engine (7 fields)
  • PII Sanitization — Regex + entropy-based detection of emails, tokens, secrets in outbound requests
  • Safe Auto-Setup — One command configures shell RC + OpenClaw, clean undo with --undo

Usage

# Start (inbound proxy + LLM Gateway enabled by default)
agentguard

# Setup shell + OpenClaw integration
agentguard setup

# Security diagnosis + auto-fix
agentguard fix              # Preview fixable issues
agentguard fix --apply      # Apply all fixes

Configuration

| Variable | Default | Description | |----------|---------|-------------| | AGENTGUARD_PORT | :10180 | Reverse proxy listen port | | AGENTGUARD_LLM_ENABLED | true | Enable LLM Gateway | | AGENTGUARD_LLM_PORT | :10081 | LLM Gateway listen port | | AGENTGUARD_LLM_MODE | monitor | monitor or enforce | | AGENTGUARD_LLM_PII | off | PII mode: off / monitor / sanitize / block | | AGENTGUARD_GATE_ENABLED | true | Enable Stage 2 evaluation |

Supported Platforms

  • macOS (Apple Silicon / Intel)
  • Linux (x64)
  • Windows (x64)

The npm postinstall script automatically downloads the correct binary from GitHub Releases.

Links

License

MIT