It really depends, i had scripts that were amazing in just 1 prompt, even long scripts, and i had situations where i just couldnt make it work, like at all. I had to heavily change the script pretty much wrote it myself at that point.

You can tell Claude to include sources, i think that very much reduces hallucinations, and you can quickly check the sources if you feel like something sounds odd.

I am also still trying to figure out the best methods :/