The library

Every prompt, annotated

Real, published system prompts from shipping AI products — each with source attribution and notes on what makes it work.

1 prompt
Lumo
system prompt

Proton Lumo — Privacy Assistant System Prompt

System prompt for Proton's privacy-focused chat assistant Lumo. It sets an identity and personality, web-search triggering criteria gated behind a use…

role definition persona tool-use protocol
16 5.4k 1.3k words