Adding Session Memory Without Building a Preference Engine

I just added another feature to Kino , my educational, cinema-themed distributed systems project. The LangGraph-based agent service is one part of that platform. This time the feature was memory . But not the vague, hyped kind. I did not want Kino to pretend it knows a user's taste forever. I wanted something much narrower and much more useful: Short-term conversational memory for follow-up turns…