External OB is never silently merged into the native orderbook.
Orderbook · Microstructure
Liquidity map, not a vote.
Inspect native depth, walls and grouped setups alongside a separately labeled external orderbook opinion — without merging unlike sources.
External TF
Empty venue-market data is shown as unavailable instead of borrowing another exchange.
Liquidity setup scores are producer-native evidence and are not cross-family normalized.