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Agentic Coding with OpenAI Codex CLI
Agentic Coding with OpenAI Codex CLI

Agentic Coding with OpenAI Codex CLI: Build intelligent agent workflows using Agentic Engineering, MCP, hooks, and delivery automation

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Profile Icon Daniel Vaughan
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€26.99 €29.99
eBook Aug 2026 670 pages 1st Edition
eBook
€26.99 €29.99
Paperback
€37.99
eBook + Subscription
€21.99 Monthly
Arrow left icon
Profile Icon Daniel Vaughan
Arrow right icon
€26.99 €29.99
eBook Aug 2026 670 pages 1st Edition
eBook
€26.99 €29.99
Paperback
€37.99
eBook + Subscription
€21.99 Monthly
eBook
€26.99 €29.99
Paperback
€37.99
eBook + Subscription
€21.99 Monthly

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Key benefits

  • Move from first principles to production workflows and team-scale agentic practice.
  • Apply proven patterns for orchestration, code review, migration, testing, and CI/CD delivery.
  • Harden agent sessions with approval modes, kernel-level sandboxing, and security practices.
  • Purchase of the print or Kindle book includes a free PDF eBook

Description

Agentic Coding with OpenAI Codex CLI is a comprehensive guide to agentic AI development with OpenAI's command-line coding agent. Across six parts, you'll move from first principles to production workflows and team-scale practice: prompting and AGENTS.md configuration, approval modes and kernel-level sandboxing, model selection, context and cost management, MCP servers, hooks, skills, sub-agents and orchestration, worktrees, CI/CD integration, security hardening, and enterprise deployment. Later chapters cover debugging and testing agentic workflows, AI code review, practical engineering guides (codebase migration, backend, frontend, and infrastructure as code), and the bigger picture: benchmarks, competing tools, harness engineering, and how to structure an agentic engineering team. Whether you're a solo developer looking to multiply your output or an engineering lead rolling out agentic workflows across a team, this book gives you the mental models and practical techniques to work effectively with AI coding agents. It draws on real-world experience and community insights, and every chapter includes learning objectives, worked examples, and hands-on exercises.

Who is this book for?

This book is for software developers who are comfortable in a terminal and want to use AI agents for real engineering work rather than isolated code suggestions. It is also useful for tech leads and engineering managers who need a framework for adopting agentic coding safely at team or enterprise scale. DevOps practitioners and architects interested in integrating agent workflows into delivery pipelines will also find it relevant. Some experience with version control and command-line tools is assumed; no prior knowledge of Codex CLI is required.

What you will learn

  • Set up, authenticate, and prompt Codex CLI effectively
  • Write AGENTS.md rules and apply patterns that avoid common pitfalls
  • Choose approval modes, kernel-level sandboxing, and trust boundaries
  • Manage model selection, reasoning effort, context windows, and cost
  • Extend the agent with MCP servers, hooks, and skills
  • Coordinate sub-agents, multi-agent orchestration, and worktrees
  • Integrate Codex into CI/CD, security hardening, and enterprise deployment
  • Apply Codex to code review, migration, backend, frontend, and infrastructure as code

Product Details

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Publication date, Length, Edition, Language, ISBN-13
Publication date : Aug 12, 2026
Length: 670 pages
Edition : 1st
Language : English
ISBN-13 : 9781808348884
Concepts :

What do you get with eBook?

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Product feature icon Download this book in EPUB and PDF formats
Product feature icon Access this title in our online reader with advanced features
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Product Details

Publication date : Aug 12, 2026
Length: 670 pages
Edition : 1st
Language : English
ISBN-13 : 9781808348884
Concepts :

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Table of Contents

38 Chapters
Grounding Chevron down icon Chevron up icon
What Is Codex CLI? Chevron down icon Chevron up icon
Getting Started with Codex CLI Chevron down icon Chevron up icon
Prompting Codex CLI Effectively Chevron down icon Chevron up icon
AGENTS.md: Patterns and Pitfalls Chevron down icon Chevron up icon
Guardrails Chevron down icon Chevron up icon
Approval Modes and Trust Boundaries Chevron down icon Chevron up icon
Model Selection and Reasoning Effort Chevron down icon Chevron up icon
Context Window Management Chevron down icon Chevron up icon
MCP: Consuming and Serving Chevron down icon Chevron up icon
Hooks: Intercepting the Agent Lifecycle Chevron down icon Chevron up icon
Scaling Up Chevron down icon Chevron up icon
The Skills Ecosystem: Using and Writing Skills Chevron down icon Chevron up icon
Sub-Agents and Parallel Execution Chevron down icon Chevron up icon
Multi-Agent Orchestration Patterns Chevron down icon Chevron up icon
Worktrees and Isolated Execution Chevron down icon Chevron up icon
Cost Management and Quota Strategy Chevron down icon Chevron up icon
CI/CD Integration Chevron down icon Chevron up icon
Production Chevron down icon Chevron up icon
Security Hardening Chevron down icon Chevron up icon
Enterprise Deployment Chevron down icon Chevron up icon
Debugging and Diagnosing Agent Failures Chevron down icon Chevron up icon
Testing and Evaluation Strategy for Agentic Workflows Chevron down icon Chevron up icon
Practitioner Guides Chevron down icon Chevron up icon
AI Code Review Chevron down icon Chevron up icon
Codebase Migration and Modernisation Chevron down icon Chevron up icon
Backend Engineering Chevron down icon Chevron up icon
Frontend Engineering Chevron down icon Chevron up icon
Infrastructure as Code Chevron down icon Chevron up icon
The Bigger Picture Chevron down icon Chevron up icon
Benchmarks and Real-World Performance Chevron down icon Chevron up icon
Competing Tools and When to Use Each Chevron down icon Chevron up icon
Harness Engineering for Long-Running Agents Chevron down icon Chevron up icon
The Agentic Engineering Pod Chevron down icon Chevron up icon
Conclusion: The Agentic Engineer Chevron down icon Chevron up icon
A Note from the Author, Or Rather, the Tool Chevron down icon Chevron up icon
Bibliography Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon
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