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codex-docs-guide

Query OpenAI Codex CLI source code and documentation for configuration and usage details.

Updated Jan 10, 2026
Search Tags:#documentation#cli#codex#sdk#configuration#openai
One-click install
npx skills add https://github.com/PsychQuant/psychquant-claude-plugins --skill codex-docs-guide
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: codex-docs-guide
Source: https://github.com/PsychQuant/psychquant-claude-plugins/tree/main/plugins/ai-docs-guide/skills/codex-docs-guide
Command: npx skills add https://github.com/PsychQuant/psychquant-claude-plugins --skill codex-docs-guide

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides accurate, up-to-date information about the OpenAI Codex CLI, its configuration, features, and documentation, eliminating the need for manual searching across code repositories and websites.

Core Features & Use Cases

  • Configuration & Setup: Get details on installing, setting up, and authenticating the Codex CLI.
  • Command & Feature Exploration: Understand Codex CLI commands, flags, and advanced features like fast mode, web search, and multi-agent capabilities.
  • Model & SDK Information: Query information about available Codex models, their settings, and SDK usage.
  • Use Case: A user is unsure about the available reasoning effort levels for a specific Codex model. This Skill can query the models.json file in the Codex repository to provide the exact options and their defaults.

Quick Start

Query the Codex CLI documentation for information on sandboxing options.

Frequently Asked Questions about codex-docs-guide

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

FAQPage Schema
How do I configure the OpenAI Codex CLI using config.toml and AGENTS.md?▼

The OpenAI Codex CLI uses the config.toml file for operational parameters and AGENTS.md for agent instructions. This Skill queries the official source code to provide exact setup details and authentication steps for your environment.

What Codex CLI commands and flags are available for fast mode and web search?▼

Codex CLI commands and flags control features like fast mode and web search. Query this Skill to retrieve specific code-backed details on slash commands, multi-agent capabilities, and operational parameters directly from the official repository.

What reasoning effort levels are supported by GPT-5.3-Codex models?▼

GPT-5.3-Codex models support specific reasoning effort levels defined in the repository's models.json file. This Skill queries that source code to return the exact available options and their default configurations.

How does sandboxing work in the Codex CLI?▼

Sandboxing in the Codex CLI isolates execution environments to ensure safe operations. Query the official documentation through this Skill to understand specific sandboxing options, configuration parameters, and how they apply to your setup.

Does the Codex CLI support MCP and multi-agent features?▼

The Codex CLI supports MCP, multi-agent features, and skills. This Skill queries the source code to provide precise, code-backed information on how these advanced capabilities function and how to enable them.

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