What frustrates me is that there's the potential to bake much more information into transaction history.

There's a huge spec (Level III data) that lets the merchant provide full line item detail with every credit card purchase.

Corporate cards get it, but consumers don't. The payment ecosystem often doesn't even submit it if the card isn't identified as a corporate card.

If you had that, you'd probably need way less "smarts" to build budgeting tools-- no need to try to reconcile bank records with order reciepts.