claude-code-harness

v0.1.0

A harness blueprint skill inspired by Claude Code-class agent systems.

Codex1 Skill

By Yuanhong YuLicense: MIT1.1k GitHub starsUpdated 12 hours ago

Directory evidence

Runtimes: Codex
Parsed components: 1 skill or MCP entry
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 claude-code-harness 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 claude-code-harness@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 “claude-code-harness-2” remain stable.

Codex: claude-code-harness-2@agent-plugin-marketplace → claude-code-harness@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/dadwadw233/claude-code-harness/.

Plugin files

plugins/dadwadw233/claude-code-harness/

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

Included Skills1

claude-code-harnessskills/claude-code-harness/SKILL.md

Design a real harness for an agentic system using Claude Code-inspired patterns. Use when the user needs a harness blueprint, request assembly design, execution loop, tool runtime, memory layering, permission model, transcript or recovery strategy, or wants to turn a vague agent idea into a harness-level architecture. Do not use for generic product brainstorming, simple prompt writing, or isolated code generation.

Plugin manifests1

plugins/dadwadw233/claude-code-harness/.codex-plugin/plugin.json

{
  "name": "claude-code-harness",
  "version": "0.1.0",
  "description": "A harness blueprint skill inspired by Claude Code-class agent systems.",
  "author": {
    "name": "Yuanhong Yu",
    "email": "[email protected]",
    "url": "https://github.com/dadwadw233"
  },
  "homepage": "https://github.com/dadwadw233/claude-code-harness",
  "repository": "https://github.com/dadwadw233/claude-code-harness",
  "license": "MIT",
  "keywords": [
    "agent",
    "harness",
    "codex",
    "claude-code",
    "runtime",
    "architecture"
  ],
  "skills": "./skills/",
  "interface": {
    "type": "cli",
    "displayName": "Claude Code Harness",
    "shortDescription": "Design real harnesses for agentic systems",
    "longDescription": "A plugin that helps developers design request assembly, execution loop, memory, permissions, recovery, and extension planes for useful agentic systems.",
    "developerName": "Yuanhong Yu",
    "category": "Productivity",
    "capabilities": [
      "Read",
      "Write"
    ],
    "websiteURL": "https://github.com/dadwadw233/claude-code-harness",
    "privacyPolicyURL": "https://github.com/dadwadw233/claude-code-harness",
    "termsOfServiceURL": "https://github.com/dadwadw233/claude-code-harness/blob/main/LICENSE",
    "defaultPrompt": [
      "Use Claude Code Harness to turn this agent idea into a harness blueprint.",
      "Use Claude Code Harness to design request assembly, tool runtime, memory, and recovery for this agent.",
      "Use Claude Code Harness to critique this agent architecture at the harness level."
    ],
    "brandColor": "#0B5FFF",
    "composerIcon": "./assets/icon.svg",
    "logo": "./assets/logo.svg",
    "screenshots": [
      "./assets/screenshot.svg"
    ]
  }
}