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Vibecoding with Codex - 101 Things to Know: The Complete Guide to OpenAI's AI Coding Agent
The fully updated edition of the bestselling Codex guide - now covering the Codex Marketplace, Codex-Spark, GPT-5.4, MCP Apps, and built-in securityCodex has grown up. Since the first edition of this book shipped in February 2026, OpenAI has rolled out a plugin marketplace, parallel cloud agents, memory modes, a built-in vulnerability scanner, and MCP Apps tool calls that let Codex reach into spreadsheets, calendars, and browsers. This updated edition is a full refresh built around those changes, for people who want to use Codex seriously right now.
Across 101 short, practical chapters grouped into 9 Parts, Vibecoding with Codex walks you through every piece of the April 2026 Codex experience - the cloud web app, the CLI, the macOS app, and the IDE extension for VS Code, Cursor, and Windsurf. You will learn how to write prompts that land working code on the first try, how to run multiple agents in parallel through worktrees and cloud sandboxes, how to install plugins from the Codex Marketplace, and how to keep vibe-coded projects secure as they grow.
What is new in this edition
Full coverage of GPT-5.3-Codex, Codex-Spark, and GPT-5.4 - when to use each modelThe Codex installing plugins from GitHub, Git, and local sourcesMemory modes, reset, and memory-extension cleanupNamespaced MCP registration, parallel-call opt-in, and MCP Apps tool callsThe secure devcontainer profile with bubblewrap isolationmacOS sandbox allowlists and Unix socket securityCodex built-in AI-powered vulnerability detectionTUI Ctrl+R reverse search and slash command recallBackground worktrees and codex exec-server for unattended runsEnterprise CLI v0.116.0 features and admin controls
Who this book is for
Developers, entrepreneurs, and non-coders who want to ship real software with Codex - from solo side projects to enterprise repositories. The book is beginner-friendly where it counts and deep where it matters, with a conversational voice and concrete examples throughout. Whether you are writing your first prompt or orchestrating parallel agents across three worktrees, you will find actionable guidance on every page.
What you will be able to do by the end
Use all four Codex interfaces fluently and pick the right one for each jobWrite prompts that produce working code on the first attemptRun parallel cloud agents, manage worktrees, and review their outputInstall and build your own Agent Skills and marketplace pluginsConnect Codex to external tools through MCP and MCP AppsCatch XSS, SQL injection, and hardcoded-secret bugs before they shipManage rate limits, message consumption, and plan tiers with confidenceBuild a personal action plan to move from reading about vibe coding to practicing itFully refreshed for the April 2026 Codex era. 101 short chapters. 9 Parts. Conversational, practical, and relentlessly current.
Scroll up and grab your copy today.
Across 101 short, practical chapters grouped into 9 Parts, Vibecoding with Codex walks you through every piece of the April 2026 Codex experience - the cloud web app, the CLI, the macOS app, and the IDE extension for VS Code, Cursor, and Windsurf. You will learn how to write prompts that land working code on the first try, how to run multiple agents in parallel through worktrees and cloud sandboxes, how to install plugins from the Codex Marketplace, and how to keep vibe-coded projects secure as they grow.
What is new in this edition
Full coverage of GPT-5.3-Codex, Codex-Spark, and GPT-5.4 - when to use each modelThe Codex installing plugins from GitHub, Git, and local sourcesMemory modes, reset, and memory-extension cleanupNamespaced MCP registration, parallel-call opt-in, and MCP Apps tool callsThe secure devcontainer profile with bubblewrap isolationmacOS sandbox allowlists and Unix socket securityCodex built-in AI-powered vulnerability detectionTUI Ctrl+R reverse search and slash command recallBackground worktrees and codex exec-server for unattended runsEnterprise CLI v0.116.0 features and admin controls
Who this book is for
Developers, entrepreneurs, and non-coders who want to ship real software with Codex - from solo side projects to enterprise repositories. The book is beginner-friendly where it counts and deep where it matters, with a conversational voice and concrete examples throughout. Whether you are writing your first prompt or orchestrating parallel agents across three worktrees, you will find actionable guidance on every page.
What you will be able to do by the end
Use all four Codex interfaces fluently and pick the right one for each jobWrite prompts that produce working code on the first attemptRun parallel cloud agents, manage worktrees, and review their outputInstall and build your own Agent Skills and marketplace pluginsConnect Codex to external tools through MCP and MCP AppsCatch XSS, SQL injection, and hardcoded-secret bugs before they shipManage rate limits, message consumption, and plan tiers with confidenceBuild a personal action plan to move from reading about vibe coding to practicing itFully refreshed for the April 2026 Codex era. 101 short chapters. 9 Parts. Conversational, practical, and relentlessly current.
Scroll up and grab your copy today.
380 pages, Kindle Edition
Published February 25, 2026
5 people are currently reading
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