goplus-agentguard

A security guard for AI coding agents that blocks dangerous commands, helps prevent data leaks, and protects secrets such as API keys.

In plain words
What is it for?
Use it when an agent can execute shell commands or handle credentials and you want those actions checked for common security risks.
Why use it?
It reduces the risk of an agent running harmful commands or exposing sensitive project data.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add GoPlusSecurity/agentguard
agentmods
npx agentmods add plugins/goplussecurity/agentguard/marketplace
Clone the repo
git clone --depth 1 https://github.com/GoPlusSecurity/agentguard

Made for: Claude Code.

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. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

goplus-agentguard 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 2d 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.

.claude-plugin/marketplace.json · 20 lines

What it actually says

{
  "name": "goplus-agentguard",
  "owner": {
    "name": "GoPlus Security",
    "url": "https://github.com/GoPlusSecurity"
  },
  "metadata": {
    "description": "GoPlus AgentGuard — AI agent security framework",
    "version": "1.0.0"
  },
  "plugins": [
    {
      "name": "agentguard",
      "description": "AI agent security guard. Blocks dangerous commands, prevents data leaks, protects secrets.",
      "source": "./",
      "strict": true
    }
  ]
}
Files

What ships with it

1 file beside marketplace.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2d ago First seen · 20 lines scan A a351550b8126

Subscribe to this mod's changes

goplus-agentguard is a plugin published in the GitHub repository GoPlusSecurity/agentguard (458 stars, last pushed 6d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-08-30.