@nora Frankly I think toki pona isn't a good thematic fit for kobolds. I don't see why they'd be into simplicity.
What I know about kobolds without looking them up:
- ruled by dragons, which I take as a lack of ambition or a history of oppression, otherwise they'd rule themselves
- very social, live in large groups
- love shiny objects and collect them, like dragons or corvids
I'd expect they speak draconic, which likely has many words for treasure, or a trade language for acquiring shinies.