codex

Drive the Codex CLI with syntax, flags, and sandbox modes for code tasks.

1|1|Updated Mar 9, 2026

Search Tags:#code review #cli #codex #concurrency #driver #sandboxing

Ready to run

npx skills add https://github.com/trevorbyrum/claude-skills-suite --skill codex-trevorbyrum

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: codex
Source: https://github.com/trevorbyrum/claude-skills-suite/tree/main/skills/codex
Command: npx skills add https://github.com/trevorbyrum/claude-skills-suite --skill codex-trevorbyrum

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides a robust and safe way to interact with the Codex CLI, ensuring correct path resolution, concurrency limits, and timeout handling for various code-related tasks.

Core Features & Use Cases

CLI Syntax & Flags: Encodes exact Codex CLI invocations for different tasks.
Path Resolution: Dynamically resolves the Codex executable path, handling NVM installations.
Concurrency Control: Manages the mandatory concurrency limit of 5 codex exec processes.
MCP Server Management: Allows disabling MCP servers for lightweight calls.
Use Case: When another skill needs to perform a code review, this driver skill ensures the Codex CLI is invoked correctly with appropriate sandboxing and timeouts.

Quick Start

Use the codex skill to review the codebase for security issues.

Frequently Asked Questions about codex

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

FAQPage Schema

How do I manage concurrency limits when running Codex CLI for code review?▼

This driver manages Codex CLI concurrency by enforcing a strict limit of 5 concurrent `codex exec` processes during code review, preventing system overload while maintaining efficient execution across parallel tasks.

How does path resolution work for the Codex executable with NVM installations?▼

Codex CLI path resolution dynamically locates the executable binary by automatically detecting and handling NVM installations, ensuring correct invocation without manual path configuration across different environments.

Can I disable MCP servers when making lightweight Codex CLI calls?▼

Yes, you can disable MCP servers for lightweight Codex CLI calls. This driver provides configuration options to turn off MCP servers, reducing overhead for simple tasks.

What is the best way to sandbox code generation tasks using the Codex CLI?▼

Sandboxing code generation tasks is best handled by this Codex CLI driver, which manages sandbox modes, dynamic path resolution, and execution timeouts to ensure secure and efficient isolated processing.

Why are my concurrent codex exec processes timing out or failing?▼

Concurrent `codex exec` processes fail when exceeding the mandatory limit of 5 simultaneous instances or encountering improper timeout handling. This driver enforces concurrency limits and manages timeouts to prevent failures.

Does this Codex CLI driver support automated security reviews?▼

Yes, this Codex CLI driver supports automated security reviews by correctly invoking the CLI with appropriate sandboxing and timeouts, allowing other skills to safely review the codebase for security issues.