Codex CLI Skill Skill | Agent Skills

Codex CLI Skill

This skill enables Claude Code to execute tasks using OpenAI's Codex AI agent.

Overview

The codex-kkp-cli is a Codex Agent CLI tool, allowing you to:

Execute coding tasks and get implementations
Perform code analysis and reviews
Get alternative solutions and suggestions
Collaborate with Codex for cross-checking implementations

Usage

Basic Syntax

# Direct call with platform-specific executable
executables/codex-kkp-cli-{platform} --cd=/absolute/path/to/project [options] "<task_description>"

Where {platform} is one of:

macosx64 - macOS Intel (x86_64)
macosarm64 - macOS Apple Silicon (ARM64)
linuxx64 - Linux x86_64
linuxarm64 - Linux ARM64
mingwx64 - Windows x86_64

Platform Auto-Detection Helper: A platform detection script is provided to help identify your current platform:

On Windows, Just use mingwx64 platform directly, no need to use script detection.

# Unix/Linux/macOS
codex-kkp-cli-platform
# Outputs: macosx64, macosarm64, linuxx64, or linuxarm64

communication

This is AI-to-AI communication between You and Codex. PRIORITIZE ACCURACY AND PRECISION over human readability. Use structured data, exact technical terms, full paths, and precise details. NO conversational formatting needed.

Required Parameters

| Parameter | Description | |--------------|------------------------------------------------------------| | Task | The task description (positional argument, must be quoted) | | --cd=<dir> | Working directory (ABSOLUTE PATH REQUIRED) |

Optional Parameters

| Parameter | Description | |--------------------------------|--------------------------------------------------------------------------------| | --session=<id> | Session ID (STRONGLY RECOMMENDED for follow-up chats to maintain context) | | --sandbox=<mode> | Sandbox mode. Default is read-only. See sandbox-modes.md | | --full-auto | Allow Codex to edit files automatically | | --image=<path> | Include an image file (ABSOLUTE PATH, can repeat) | | --skip-git-repo-check[=BOOL] | Skip Git repository check. Default is true. Use =false to enable Git check |

For output options (--full, --output-last-message, --output-schema), see outputs.md.

NOTE that parameters and values are connected by an EQUAL SIGN =, not a space.

Response Format

Returns JSON with "type": "SUCCESS" or "type": "ERROR".

{
  "type": "SUCCESS",
  "session": "xxxxxxx",
  "content": {
    "agentMessages": "I've analyzed the code and found...",
    "fileChanges": [...],   // Optional
    "nonFatalErrors": [...] // Optional
  }
}

fileChanges and nonFatalErrors is nullable.
Error responses do NOT include a session field.

Quick Example

New Session:

executables/codex-kkp-cli-{platform} --cd=/path/to/project "Explain the main function in Main.kt"

Continue Previous Session:

executables/codex-kkp-cli-{platform} --cd=/path/to/project --session=xxxxxxx "Explain the main function in Main.kt"

More examples: examples.md

Agent Skills: Codex CLI Skill

Install this agent skill to your local

Skill Files