I haven’t hand-written most of my code since 2021. That sentence tends to trigger one of two reactions: either “so you don’t really build,” or “so you just prompt a chatbot.” Both miss it.
The constraint was never the typing
When I look back at what I’ve shipped — a live multi-tenant school system, a remote-proctored hiring platform, an encrypted case-management desktop app for UK law firms, firmware on an ESP32 — the thing that decided whether each one succeeded was never how fast I could type a for loop. It was whether I understood the problem well enough to say what should exist, how it should be structured, and how I’d know it was correct.
That’s the work. Directing AI well is not “write me an app.” It’s holding the whole architecture in your head, decomposing it into pieces a model can implement correctly, reviewing every boundary, and knowing — from experience — where the bugs will hide.
What “directing” actually looks like
- Architecture first. The data model and the trust boundaries get decided before a line of feature code. In multi-tenant software, tenant isolation lives in the data layer, not in app code a future change can forget.
- Correctness is defensible. Deterministic scoring so a hiring result is reproducible. A tamper-evident hash-chain so an audit log can’t be silently altered. Tests that prove it — 34/34 schema, 30/30 IDOR backtests — before release.
- Bias toward the cheaper error. In payment verification, a false “confirmed” costs a merchant real money; a missed match just costs a manual check. So the system is designed to never confirm a payment that didn’t happen.
None of that is a prompt. It’s judgment. The AI is the fastest pair of hands in history — but hands still need someone who knows what to build.
Why this is the durable skill
Models keep getting better at implementation. They do not get better at knowing your problem, your constraints, your users. The builders who win the next decade are the ones who can turn a fuzzy business need into a precise, testable system — and then move at the speed of the best tools available.
That’s the bet this whole site is built on.