The AI Can't See What It Drew

Originally published on hexisteme notes . A while back I wrote about why your vibe-coded app looks worse than you expect. That post diagnosed the cause. This one is the fix that actually worked, on a real job: redesigning the mascot in my trip expense-splitting app. The mascot is the face of the app. It shows up in more than twenty places — onboarding, settings, the stats screen, the map, the diary, the settlement report, and five little mini-games. And it was nothing. One circle did double duty as head and body. No legs. No hands. No eyebrows. One X for an eye. Visually its identity was zero: a tinted circle. I knew it was bad. What I could not do was say what to change. Words don't converge on a picture I kept talking myself in circles about it, and so did the AI I was pairing with. Rounder? Add a hat? Bigger eyes? Every sentence sounded reasonable and none of them moved the decision. At some point I noticed what was actually going on: this was not a shortage of information. Nobody needed to go fetch a fact. It was a shortage of fidelity . A visual decision cannot converge in prose, because prose is not the medium the decision lives in. That is the tell. When a discussion loops and more words don't help, you don't need more analysis — you need a picture. So I stopped arguing and built prototypes. Three variants, not more tints The rule I gave myself: make variants that are structurally different, not palette swaps. Different silhouette, different anatomy, a different device carrying the identity. Repainting the same shape in different colors teaches you nothing. Three genuinely different creatures force a real choice. I built three and rendered every one as an action sheet so I could look at them side by side: A, a jelly bean. The safe evolution of what I already had. It slots into the UI cleanly, but its whole identity hangs on a single coin floating over its head. Shrink it and it's just a round blob again. B, a wallet. Object personification: a wallet body with