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The Codex Playbook

Enterprise AI Software Engineering with Codex

The Codex Playbook helps enterprise engineering teams turn Codex from a helpful assistant into a reliable part of the software delivery system, with practical patterns for context engineering, repositories, GitHub workflows, MCP, governance, and AI-assisted development.

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About

About

About the Book

The Codex Playbook is a practical field guide for enterprise teams adopting Codex in real software engineering work. It helps architects, developers, platform engineers, AI champions, and technical leaders structure repositories, engineer durable context, use AGENTS.md, build GitHub workflows, apply governance, understand MCP, coordinate agents, and keep AI-assisted engineering reviewable, repeatable, and accountable.

Author

About the Author

Contents

Table of Contents

x Table of Contents | The Codex Playbook

Table of Contents

The Codex Playbook

Enterprise AI Software Engineering with Codex

Igor van der Burgh 20 chapters 5 parts Practical enterprise playbook

Navigate

Front Matter Part I: Foundations Part II: Context Engineering Part III: Codex-Ready Repositories Part IV: Enterprise Workflows Part V: Practical Patterns Back Matter

Front Matter

Before the Playbook

  • Author's Note
  • Introduction: Why This Playbook Exists

Part I

Foundations

The language, mental model, and lifecycle readers need before designing repositories, workflows, or agent patterns.

  1. 01 The Rise of AI Software Engineering

    Why AI changes the software delivery loop and why human accountability remains central.

  2. 02 What Codex Is and Where It Fits

    How to understand Codex as an engineering collaborator and decide which work belongs in the workflow.

  3. 03 Codex CLI, IDE, Cloud, and ChatGPT

    When to use each Codex interaction surface across local, editor, cloud, and conversational work.

  4. 04 The AI Development Lifecycle

    A practical lifecycle for moving from intent to context, implementation, verification, review, and learning.

Part II

Context Engineering

How teams turn context into a durable engineering asset instead of relying on one-off prompts.

  1. 05 Why Context Matters More Than Prompts

    How teams turn context into an engineering design surface rather than prompt decoration.

  2. 06 AGENTS.md Explained

    How durable repository instructions guide Codex behavior, standards, verification, and review.

  3. 07 Repository Memory and Documentation

    How documentation and repository memory help humans and Codex understand the system.

  4. 08 Context Loading and Prioritisation

    How to decide what Codex should read, trust, ignore, refresh, or escalate.

Part III

Codex-Ready Repositories

Repository structure, Markdown documentation, quality gates, CI/CD, security, and governance for AI-assisted work.

  1. 09 Designing the Ideal Repository

    How to structure repositories so Codex can discover intent, boundaries, tests, and ownership.

  2. 10 Markdown Files Codex Should Understand

    How Markdown files become operational context for architecture, APIs, testing, security, and delivery.

  3. 11 Testing, Quality Gates, and CI/CD

    How to make Codex-assisted changes reviewable, repeatable, and safe to accept.

  4. 12 Security, Secrets, and Governance

    How to define security boundaries, secrets handling, and governance gates for AI-assisted work.

Part IV

Enterprise Workflows

GitHub, MCP, multi-agent development, pull request review, and enterprise operating models.

  1. 13 GitHub Workflow with Codex

    How to move from issue to branch, task, commit, pull request, review, and merge with Codex in the loop.

  2. 14 MCP and Connected Tooling

    How MCP and connected tools expand Codex context and action surfaces.

  3. 15 Multi-Agent Development

    How to coordinate specialized agents without losing ownership, context, or review discipline.

  4. 16 Code Review and Pull Requests

    How to review Codex-assisted work with evidence, boundaries, and human accountability.

  5. 17 Operating Codex in Enterprise Teams

    How teams, platform owners, AI champions, and leaders can operate Codex responsibly.

Part V

Practical Patterns

Applied patterns, reusable templates, and checklists for enterprise teams adopting Codex.

  1. 18 Building an AI Dashboard

    A practical dashboard workflow covering data, documentation, review, and deployment concerns.

  2. 19 Building a Competitive Intelligence Platform

    An enterprise intelligence workflow built around sources, evidence, governance, and automation.

  3. 20 Codex Playbook Templates and Checklists

    Reusable templates, prompts, checklists, and adoption assets for enterprise teams.

Back Matter

Reference Material

  • Glossary
  • Further Reading and Official Documentation Links

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