To be really honest. AI / LLM's can write svelte 5 runes code but Its a really really mixed bag and most of them probably write svelte 4 code
Like, here's the thing, sure it can create the code but LLM's stop so early in things like svelte atleast that's my opinion. I never really learnt react and didn't ever use react with any LLM
fun fact: Chatgpt 3 could write perfectly well sveltekit, that's how I "vibecoded" in the start
Like, sure I would copy paste but deep down I just felt like most of this is just plain html css js and nothing too much to worry about and that soothed me that sure this may be vibe coded but I was a real noob of svelte but the vibe coding was a bit of a successful :p
I have stopped it / atleast reminded myself 100 times to stop it because I want to feel even more confident with svelte and really learn it even more to the point that I can be 100% confident to write complex software in svelte myself and well only using AI for the boilerplate part or the tedious parts I am not sure, there is a lure to ask LLM's more and more and to depend on them more or maybe its just me I am not sure.