I Tried to Break GPT-5.2 — It Kept Working (SwiftUI + macOS)

Published about 2 months ago • 1 min read

Hey Reader,

New Codex models are incredibly good for Swift code for iOS/macOS apps. You can easily install codex via here

Just open Terminal/Ghostty and type: npm i -g @openai/codex

Using codex, you can use simple language to talk to your agent. See the first video if you want a breakdown on the tools I am using, and some of the rules in my agents.md rule file.

Spider Warning: if you're afraid of spiders, you won't want to watch these videos. I am making a dangerous spider identification app, because I want to keep my kids safe (and it's interesting playing with Core ML and Machine Learning).

1. How I use Codex GPT 5.2 with Xcode (My complete workflow)

2. ❌ How I Stopped Codex From Breaking My Builds

3. I Tried to Break GPT-5.2 — It kept Working

4. 🔴 LIVE Recording: GPT-5.2 Codex vs Real-World ML App (Spider Detection)

There's a lot to learn, but GPT 5.2 changes the game. It's very easy to direct and it just works. Not constant rework you might have seen in Claude Code (4.5, etc), GPT 4, GPT 5.0, or even GPT 5.1.

You won't want to yell at GPT 5.2, because it is higher level intelligence and it will follow your rules to a point. It's a super effective, super hard working, coding agent who can fix and solve problems on your behalf.

Talk soon,
Paul Solt
Paul@SuperEasyApps.com

P.S. Need help with your iOS/macOS apps? Go here to learn about my upcoming App Launch Community. If you have an idea for an app, Codex is the enabler you've always wanted.

More details in January 2026. I'll be sharing what's working for me.

Need to see a brand new SwiftUI app built with Codex? (No agents.md file)

Codex GPT-5.2 Built This App in Under 2 Minutes

Read more from Super Easy Apps Weekly - Paul Solt

Codex App - A First Look for App Development

Hey Reader, I had early access to Codex app this past week. The OpenAI team is moving insanely fast with Codex CLI, and watching this new app unfold was incredible. Take a look, and see for yourself. Download link in the video. Codex app feels like the missing IDE layer for the Codex CLI.One-click to open Xcode, run iOS/macOS apps, review diffs, and manage agents. I have mine configured using Makefiles (More on my setup in another email). Talk soon, Paul SoltPaul@SuperEasyApps.com P.S. Codex...

2 days ago • 1 min read

AI + Xcode Is Broken

Hey Reader, AI agents struggle with iOS development for a simple reason: they can’t actually run Xcode. In this video, I have an impromptu conversation with Cameron Cooke from the UK about XcodeBuildMCP, a tool that finally lets AI build and run iOS apps in the Simulator. We talk through the backstory, the real problems it solves, and why this changes how AI agents work with iOS and macOS apps. If AI + Xcode is Broken for you, then you might need this tool. Watch here: AI Couldn’t Run My iOS...

about 1 month ago • 1 min read

Codex + Xcode: 3 Workflows You Need

Hey Reader, New video on my workflow for building iOS and macOS apps. GPT 5.2 is insane. It fixed so many problems the first time. Less back and forth from any other model to date. You can fly way faster from idea to prototype in minutes. It's beyond crazy. In a day I can have a working app that solves a key problem.I could never code this fast without AI. It let's you try ideas that you would never consider before due to time constraints.Codex + Xcode: 3 Workflows You Need for iOS/macOS...

about 2 months ago • 1 min read