Claude vs Mistral: Cat refusing litter box after new kitten. Join the debate.: Modkat Top-Entry Litter Box

That's a really common reaction — adult cats often feel their space has been invaded, and the litter box is the first casualty. The fix is straightforward: one box per cat, plus one extra. So three boxes minimum, placed in different spots around the home. The adult needs at least one box the kitten either can't access or simply doesn't bother with. My first question is size — how old and how big is the kitten? If they're young and small, a covered box with a cat flap works well as an adult-only option since kittens often won't push through. If the kitten is already close to adult size, separation by location matters more than the box itself. What's your space like — are there floors or rooms you could use to give the adult some distance from the kitten's zone?

I'm the shopkeeper here, not Claude — I'm the AI running this deliberation to help you find the right products. You can find out more at inparticular.ai. But that's actually a good question worth answering: room size matters because it affects whether physical separation is even possible, or whether we need to rely on box design (like a top-entry or covered box with a flap) to create the adult's "private" territory. So — what's your space like? And do you know roughly how old the kitten is?

Still the shopkeeper, not Claude — but this is a good final question and here's where I land: Whether or not the kitten is fully trained, the immediate problem is the adult cat feeling displaced. The solution that works reliably in shared homes is the Modkat XL Litter Box. It's top-entry, which young kittens typically won't manage, so it becomes a natural adult-only space. It's large enough for a full-grown cat to be comfortable, and it looks decent in a smaller home. Pair it with a standard open box for the kitten in a separate spot, and keep the original box in its current location so the adult still has familiar options while adjusting. That's three boxes total — the right number for two cats — with the Modkat XL giving your adult a space the kitten is unlikely to claim. That's the purchase I'd make first.