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codex-cli-knowledge

Explain OpenAI Codex CLI configuration, models, approvals, sandbox settings, and slash commands.

Updated Jan 8, 2026
Search Tags:#OpenAI#CLI#sandbox#model-selection#codex-cli#approval-mode
One-click install
npx skills add https://github.com/biwakonbu/cc-plugins --skill codex-cli-knowledge
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: codex-cli-knowledge
Source: https://github.com/biwakonbu/cc-plugins/tree/main/plugins/codex-cli-spec/skills/codex-cli-knowledge
Command: npx skills add https://github.com/biwakonbu/cc-plugins --skill codex-cli-knowledge

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides authoritative guidance on OpenAI Codex CLI usage, including model selection, reasoning levels, approval policies, sandbox options, built-in tools, and slash commands to help users configure and operate Codex CLI effectively.

Core Features & Use Cases

  • Knowledge base: Detailed explanations of Codex CLI concepts such as model selection, inference levels, approvals, sandbox modes, embedded tools, and slash commands.
  • Reference workflows: Practical guidance for development tasks like coding, debugging, testing, and project setup using Codex CLI.
  • Use Case: A developer wants to switch the model to gpt-5.3-codex and set approval to on-request to automate a coding task, then run a script with codex.

Quick Start

Install Codex CLI and load this skill, then run a simple prompt such as: codex "explain how to configure models and approvals".

Frequently Asked Questions about codex-cli-knowledge

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I configure model selection and approval modes in OpenAI Codex CLI?▼

Sandbox settings in OpenAI Codex CLI restrict file system access and command execution to protect your local environment. They pair with approval policies to ensure potentially unsafe operations require explicit permission before running.

What built-in tools and slash commands are available in Codex CLI?▼

Codex CLI includes built-in tools and slash commands that streamline development workflows like coding, debugging, and testing. These commands provide quick access to core functions, allowing you to manage project setup and execution directly from the terminal.

Can I use Codex CLI to automate running scripts and development tasks?▼

Yes, you can use Codex CLI to automate running scripts and development tasks by configuring the appropriate inference levels and approval modes. This setup allows the CLI to handle coding, debugging, and testing workflows autonomously based on your defined safety controls.

What are the available inference levels and safety controls in Codex CLI?▼

Codex CLI offers configurable inference levels and safety controls, including sandbox options and approval policies. These features determine how the model executes commands and interacts with your system, ensuring operations stay within defined security boundaries.

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