Mastering GPT-5 Codex Development: Build Production-Ready Software Projects with AI-Assisted Engineering, Intelligent Coding Workflows, Testing, Deployment, and Scalable Architecture - Softcover

Blackthorn, Erynd

Softcover

ISBN 13: 9798187709472

Publisher: Independently published, 2026

Synopsis

Your AI coding agent isn't the problem. Your process is.
Codex will happily build you a fully-featured, beautifully tested, completely wrong product because nothing told it to stop. Mastering GPT-5 Codex Development is the field guide for engineers who want a coding agent doing real, trusted work on a production codebase, not just isolated tasks.
Built around one real system, Meridian, a sprint tracker with a first-class API and Slack bot — this book takes you from a blank repository to a production system a team actually depends on, chapter by chapter:

• Scope a project so Codex stops guessing and starts building
• Turn a rough idea into a requirements document an agent can follow
• Design a modular architecture that survives fresh Codex sessions with no memory of yesterday
• Build, test, debug, and ship features with an agent doing an increasing share of the work
• Harden for security, production readiness, deployment, and long-term scale

Every technique here has been used on a real project, watched fail in a specific way, and fixed. If you already know how to build software and want to build it well alongside a coding agent, not a first programming book, not a prompt-engineering trick list, this is it.

Edition details

• Publisher: Independently published
• Publication date: 2026
• Language: English
• ISBN 13: 9798187709472
• Binding: Paperback
• Number of pages: 181