The Drone tab's Materials group is the whole answer to "what do I actually have" — tier currencies and siege drops side by side, nothing walled off in the grotto any more. Click any material and its own book opens: every recipe that spends it, at either bench, with each leg printed as owned over needed rather than hidden behind a hover. Seeing 5 of 8 Warden Plate sitting next to a fully-ticked leg and an overall percentage answers the question in one glance instead of a mental note carried between two screens.
A locked recipe never reads as a dead row either — refusals state their reason with live numbers: dive past a depth, bank more crystals, reach the Sealed Grotto. And nothing in the book is hand-written: it's derived from the same item and Breachstone tables the rest of the game reads, so a new recipe appears with no separate page to keep in sync. Full breakdown in the guide: The Bay.