Our thinking behind Lumendra

Our writing models have quietly become part of dull, necessary work — chasing a late invoice, making sense of a lease, or turning half a page of notes into something a colleague can actually read. As these systems get better at carrying out steps on your behalf — and as they turn up inside the desktop tools you already keep open all day — the Lumendra app, on laptops, tablets and phones, is shifting from something you ask questions of into something you hand work to.

We would rather the app hold to rules we are willing to publish and be judged against. Models of this kind are hard to predict at the edges, and keeping them inside a standard across contested ground is harder still: questions of politics, faith, illness or grief rarely resolve into one answer that suits every reader who asks. The same capability that makes the app worth opening on a Monday is what makes it risky to leave alone.

What follows sets out how those rules become ordinary decisions about what the app will draft, what it declines, and what it says when it is unsure. We will misjudge some of it. When we do, we would rather be told early.