cyber-agent-harness

v0.6.0

A toolkit for working with AI agent harnesses: detect which one is running, query its managed-policy locations, plugin storage, enabled plugins, and skill naming, and resolve layered reference documents.

CodexClaude CodeAgent Plugins1 Skill

By unionalLicense: MIT0 GitHub starsUpdated last week

Directory evidence

Runtimes: Codex, Claude Code, and Agent Plugins
Parsed components: 1 skill or MCP entry
Source updated: Oct 11, 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 cyber-agent-harness for Codex and Claude Code

Installs for the current user

codex plugin marketplace add IchenDEV/agent-plugin-mkt
codex plugin marketplace upgrade agent-plugin-marketplace
codex plugin add cyber-agent-harness@agent-plugin-marketplace

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

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/cyberuni/agent-harness

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is packages/agent-harness/.

Plugin files

packages/agent-harness/

├── .codex-plugin/plugin.json
├── .claude-plugin/plugin.json
├── plugin.json
└── skills/reference/SKILL.md

Included Skills1

referenceskills/reference/SKILL.md

Use this skill when loading, creating, updating, deleting, finding, or inspecting a reference — a Markdown document agents read by name — or when wiring a skill to load one.

Plugin manifests3

packages/agent-harness/.codex-plugin/plugin.json

{
  "name": "cyber-agent-harness",
  "version": "0.6.0",
  "description": "A toolkit for working with AI agent harnesses: detect which one is running, query its managed-policy locations, plugin storage, enabled plugins, and skill naming, and resolve layered reference documents.",
  "author": {
    "name": "unional"
  },
  "homepage": "https://github.com/cyberuni/agent-harness",
  "repository": "https://github.com/cyberuni/agent-harness",
  "license": "MIT",
  "keywords": [
    "agent-harness",
    "claude-code",
    "cursor",
    "codex",
    "copilot-cli"
  ],
  "skills": "./skills/"
}

packages/agent-harness/.claude-plugin/plugin.json

{
  "name": "cyber-agent-harness",
  "version": "0.6.0",
  "description": "A toolkit for working with AI agent harnesses: detect which one is running, query its managed-policy locations, plugin storage, enabled plugins, and skill naming, and resolve layered reference documents.",
  "author": {
    "name": "unional"
  },
  "homepage": "https://github.com/cyberuni/agent-harness",
  "repository": "https://github.com/cyberuni/agent-harness",
  "license": "MIT",
  "keywords": [
    "agent-harness",
    "claude-code",
    "cursor",
    "codex",
    "copilot-cli"
  ],
  "skills": "./skills/"
}

packages/agent-harness/plugin.json

{
  "$schema": "https://agent-plugins.org/schemas/1.0.0/plugin.schema.json",
  "name": "cyber-agent-harness",
  "version": "0.6.0",
  "description": "A toolkit for working with AI agent harnesses: detect which one is running, query its managed-policy locations, plugin storage, enabled plugins, and skill naming, and resolve layered reference documents.",
  "author": {
    "name": "unional"
  },
  "homepage": "https://github.com/cyberuni/agent-harness",
  "repository": "https://github.com/cyberuni/agent-harness",
  "license": "MIT",
  "keywords": [
    "agent-harness",
    "claude-code",
    "cursor",
    "codex",
    "copilot-cli"
  ],
  "extensions": {
    "org.cyberuni.universal-plugin": {
      "skills": "./skills/",
      "harnesses": {
        "claude-code": {},
        "cursor": {},
        "codex": {},
        "copilot-cli": {}
      },
      "scripts": {
        "skills/reference/scripts/reference.mjs": "src/references/reference.skill-script.ts"
      }
    }
  }
}