Can an AI tell a rivalry's story without inventing the score?

This is a submission for Weekend Challenge: Passion Edition What I Built Rivalry Engine — pick two national football teams, and Snowflake reads 150 years of their matches, scores how heated the rivalry is, calls a one-word verdict on its shape, predicts the next result, and lets Cortex narrate the one story inside it. All of it — the data, the analytics, the AI, and the app — runs inside Snowflake. Nothing ever leaves the warehouse. A scoreboard tells you who won. It never tells you what the rivalry means . Argentina and Brazil have met over a hundred times across a century — a razor-thin ledger that has never let either side feel safe. Germany and England meet rarely, but every meeting carries a tournament's weight. Most national teams have never played each other at all. My goal was a product that could feel the difference between those three shapes — not another stats table, because a table is a report and I wanted an argument. The passion is football. But the real engineering question underneath it was the one I actually cared about: can an AI tell the story of a rivalry without lying about the facts? So I gave myself one rule before writing a line of code: The AI interprets the shape of a rivalry. It never invents the facts. Every count, date, score and streak on screen is computed in SQL from real matches. Cortex is handed only those computed facts, and told explicitly to never produce a number. And its honest corollary: two nations that never met get a "first chapter unwritten" card — and Cortex is never called. A product that can't return nothing will invent something. This one returns nothing. Demo It runs entirely in Streamlit in Snowflake (Snowsight) — no public host, no API keys — so here's a walkthrough: The 90-second tour: Argentina vs Brazil → the heat gauge pins to 🔥 Blood rivalry , recent-form chips light up, and the SQL detector's verdict reads Blood feud . ✨ Generate the story → Cortex writes a narrative that cites the real biggest thrashing and f