The Most Valuable Code I Wrote Today Was None At All

There is a dangerous myth in the AI era: that speed is the only metric that matters.

We see demos of agents generating full-stack apps in seconds and think, “This is the future.” But if you’re a developer actually using these tools in production, you know the reality is different. You know the anxiety of merging a PR written by an entity that hallucinates libraries and misunderstands business logic.

AI writes code faster than we can read it. And that is a problem.

The Verification Gap

Last week, I ran into this head-on. A stakeholder claimed our APR calculations were off. “It’s obviously wrong,” they said.

I did what anyone would do in 2025: I prompted my AI agent, Jules, to fix it.

Jules was impressive. It refactored the entire interest module, added unit tests, and updated the documentation. It looked perfect. The code was clean, the logic seemed sound, and the tests passed.

In the old world, I would have felt pressure to merge it. I didn’t want to spend three hours manually tracing the execution path of a complex financial function.

Enter the Reality Layer

But I didn’t merge it. Instead, I spun up a preview environment in PrevHQ.

Because PrevHQ gives me a live, hermetic URL for every change, I could poke at it. I could run real scenarios against it. I didn’t just read the code; I experienced the result.

And I realized something: The AI was wrong.

The original code was actually correct for our specific edge cases. The “fix” introduced a subtle regression that would have cost us heavily in production. The AI had optimized for a standard formula, ignoring our domain-specific rules.

Throwing Code Away

So you know what I did?

I closed the PR. I deleted the branch.

The most valuable thing I did that day wasn’t shipping code. It was throwing code away with confidence.

This is why I built PrevHQ. Not to help you ship faster (though you will), but to help you verify what matters. We are moving from an era of Creation to an era of Verification. The tools we use need to reflect that.

I don’t want a “2030 Vision” of magic software. I want a tool that lets me sleep at night knowing that the code I merged—whether written by me or a bot—actually works.

That’s PrevHQ. The sandbox for the AI era.