What Changes When You Build an App With an AI Agent Instead of Writing Every Line Yourself

I'm a few weeks into building a mobile app solo. It's in the identity and habit-change space, still early, still unnamed publicly. This isn't a launch post. It's an honest account of a process decision that changed more about how I work than I expected: building most of it with an AI coding agent instead of writing every line myself.

I want to be specific about what actually changed, because "AI writes the code now" is both true and the least interesting part of it.

Starting with the boring part

Before I touched a single screen, I wrote the full database schema. Every table I could reasonably foresee needing for the MVP, plus row-level security policies on all of them, before a single real user existed.

This felt like the slow option. UI is the visible part of building something. A schema is invisible until it's wrong.

The reasoning held...

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