Hi and welcome!
I'm not sure how much use this forum will see, but I wanted to create it just in case it could be of use to anyone interested in writing, implementing or editing flavourful game responses.
After putting together a NarraScope talk on the topic, I still have lots more notes, excerpts and resources I plan to share, once I figure out the best format and organization for them (e.g. mini-guides for customizing responses in certain systems, or possible "best practices" in designing them).
Don't hesitate to reply to this thread or start a new one if there's anything response-related you'd like to talk about! I'm fully open to any questions, and I'd love to maintain this page over the long term as a sort of community resource to assemble knowledge from different people and corners of the web all in one place.
Bon appétit!