someone's been extracting the hidden instructions every AI chatbot gets before your first message, and putting them on Github.
68,700 stars. Fable 5.1, GPT-6.1 Sol, Claude Sonnet 5.5, Claude Opus 5.5, Grok 4.7, GPT-6 Luna. captured word for word, updated constantly.
read a few and you'll see how the people who build these models actually write instructions. where they're specific, where they repeat themselves, what they ban outright, how they handle a refusal.
it's the best prompt engineering reference nobody charges for
public domain, CC0. take whatever you want.
save this one.