What is the difference between global and subcommand flags in Codex?

Global flags (like -a or -s) must be placed BEFORE the subcommand, while subcommand-specific flags (like --full-auto or --json) must come AFTER the 'exec' command.

How can I resume a previous Codex session using the CLI?

You can resume a session by using 'codex exec resume '. The session ID can be extracted from the JSONL output of a previous command.

What does the --full-auto flag do?

The --full-auto flag automatically sets the approval policy to 'on-request' and the sandbox mode to 'workspace-write', streamlining common development tasks.

How do I handle 'Permission Denied' errors in the sandbox?

Ensure you are using the '--full-auto' flag or explicitly setting '-s workspace-write' to allow file modifications within your project directory.

How do I start a non-interactive session with Codex CLI?

Use the 'codex exec' command followed by the '--full-auto' and '--json' flags to enable programmatic, non-interactive execution.

OpenAI Codex CLI Reference

Name: OpenAI Codex CLI Reference
Author: hughescr

byhughescr

开发者工具

Provides a comprehensive guide and technical reference for invoking, configuring, and managing the OpenAI Codex CLI tool.

关于

The Codex CLI Reference skill equips developers with the precise technical knowledge required to interact with the OpenAI Codex command-line interface efficiently. It covers complex command structures, the distinction between global and subcommand flags, and session management for multi-turn conversations. This skill is essential for users automating workflows, managing workspace-restricted environments, or integrating Codex into programmatic scripts using JSONL output and session ID extraction techniques.

主要功能

Instructions for session ID extraction using jq or sed for automation
Detailed command structure reference for codex exec and resume operations
Full flag reference for models, timeouts, MCP configurations, and image attachments
Comprehensive guidance on sandbox modes including read-only and workspace-write
0 GitHub stars
Troubleshooting protocols for sandbox permission errors and JSON parsing issues

使用场景

Automating complex code modifications through programmatic CLI scripts
Configuring secure, workspace-restricted AI environments for local development
Maintaining conversation context across multiple terminal sessions using session IDs

关于

主要功能

Instructions for session ID extraction using jq or sed for automation
Detailed command structure reference for codex exec and resume operations
Full flag reference for models, timeouts, MCP configurations, and image attachments
Comprehensive guidance on sandbox modes including read-only and workspace-write
0 GitHub stars
Troubleshooting protocols for sandbox permission errors and JSON parsing issues

使用场景

Automating complex code modifications through programmatic CLI scripts
Configuring secure, workspace-restricted AI environments for local development
Maintaining conversation context across multiple terminal sessions using session IDs