hol-guard-plugin

v0.1.0

Codex plugin for HOL Guard local AI harness protection across Codex, Claude Code, and other agent/plugin systems.

Codex2 Skills1 MCP serverstdio

By Hashgraph OnlineLicense: Apache-2.01.1k GitHub starsUpdated 13 hours ago

Directory evidence

Runtimes: Codex
Parsed components: 3 skill or MCP entries
Source updated: Sep 23, 2026
Manifest status: Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install hol-guard-plugin for Codex

Installs for the current user

codex plugin marketplace add hashgraph-online/awesome-codex-plugins
codex plugin marketplace upgrade awesome-codex-plugins
codex plugin add hol-guard-plugin@awesome-codex-plugins

Paste and run these commands in a terminal with Codex. They add and refresh the awesome-codex-plugins catalog, then install this plugin.

Compatibility: the page URL and API slug “hol-guard-plugin” remain stable.

Codex: hol-guard-plugin@agent-plugin-marketplace → hol-guard-plugin@awesome-codex-plugins

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually

$ git clone https://github.com/hashgraph-online/awesome-codex-plugins

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is plugins/hashgraph-online/hol-guard-plugin/.

Plugin files

plugins/hashgraph-online/hol-guard-plugin/

├── .codex-plugin/plugin.json
├── skills/hol-guard/SKILL.md
├── skills/plugin-scanner/SKILL.md
└── .mcp.json

Included Skills2

hol-guardskills/hol-guard/SKILL.md

Use when setting up HOL Guard, protecting local AI harnesses, reviewing Guard approvals or receipts, scanning Codex plugins, skills, MCP servers, marketplace packages, or running plugin-scanner verification before release.

plugin-scannerskills/plugin-scanner/SKILL.md

Scan AI agent skills, plugins, MCP servers, and agent tooling for prompt injection, unsafe commands, secret exposure, and supply-chain risks before installing or trusting them.

MCP servers1

hol-guardstdio

command: hol-guard
args: mcp serve --stdio

Plugin manifests1

plugins/hashgraph-online/hol-guard-plugin/.codex-plugin/plugin.json

{
  "name": "hol-guard-plugin",
  "version": "0.1.0",
  "description": "Codex plugin for HOL Guard local AI harness protection across Codex, Claude Code, and other agent/plugin systems.",
  "author": {
    "name": "Hashgraph Online",
    "email": "[email protected]",
    "url": "https://github.com/hashgraph-online"
  },
  "homepage": "https://github.com/hashgraph-online/hol-guard-plugin",
  "repository": "https://github.com/hashgraph-online/hol-guard-plugin",
  "license": "Apache-2.0",
  "keywords": [
    "hol-guard",
    "ai-security",
    "plugin-scanner",
    "mcp",
    "codex",
    "skills"
  ],
  "skills": "./skills/",
  "interface": {
    "type": "cli",
    "displayName": "HOL Guard Plugin",
    "shortDescription": "Protect Codex, Claude Code, and other AI harnesses.",
    "longDescription": "HOL Guard Plugin teaches Codex how to install and operate HOL Guard across Codex, Claude Code, Copilot CLI, Cursor, Gemini, Hermes, OpenClaw, OpenCode, and Antigravity. It also guides plugin-scanner checks for Codex plugins, Claude Code project surfaces, skills, MCP servers, and marketplace packages.",
    "developerName": "Hashgraph Online",
    "category": "Security",
    "capabilities": [
      "Security",
      "Local CLI",
      "Scanner",
      "Workflow Guidance"
    ],
    "websiteURL": "https://hol.org/guard",
    "privacyPolicyURL": "https://hol.org/points/legal/privacy",
    "termsOfServiceURL": "https://hol.org/points/legal/terms",
    "defaultPrompt": [
      "Protect Claude Code with HOL Guard.",
      "Scan this Codex plugin before release.",
      "Show Guard receipts and pending approvals."
    ],
    "brandColor": "#5599FE",
    "composerIcon": "./assets/icon.png",
    "logo": "./assets/logo.svg",
    "screenshots": [
      "./assets/screenshot.svg"
    ]
  }
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[hol-guard-plugin on Agent Plugins Marketplace](https://pluginsmp.com/plugins/hol-guard-plugin)