Update: it looks like the live version of the algorithm is slightly different, probably changed because of these leaks. As such the app predictions aren't accurate, sorry

For those who don't know, Claude Code's source got leaked earlier today, and it included plans for an April Fools easter egg, a Tamagotchi-esque virtual buddy. There are 18 possible species, and a bunch of stats, accessories, and attributes, all determined algorithmically based on your account UUID. Since we know the algorithm we can check what the outcome will be ahead of time, and find out what your pet is ahead of tomorrow's release.

I threw this site together to do just that, walks you through finding your UUID and lets you check the pet generated for any arbitrary string.

In terms of security the site runs entirely locally in a single html file, and your account ID isn't a credential anyways, just a identifier, can't authenticate anything.

Don't mean to brag but I got a legendary ghost.