kit, but is on oulipo.social. You can follow or talk with this account if you own an account on any instantiation. If you don't, you can sign up.

CAT
cot
cog
DOG

FISH
wish
wisp
wasp
warp
warm
WORM

now you go!

kit, but @kit
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@ranjit toots
toons
moons
moans
moats
coats
chats
chars
chard
shard
shark
snark
snarl
snail

@ranjit i had to map this out from both first and last words with a pad and a dictionary application tbh. props to anybody who finds a path from toots to snail without as many words