SLB are currently two separate units. Really all that needs to be added to the base units is the SLB. This would reduce the size of the drop down and the size of the JSON file downloads.
When manually picking a VC within builder, the checkbox for "only show owned equipment" hides everything, even with VCs in inventory. The build option for "only owned equipment" when auto building still correctly uses the VCs in the account inventory.
The builder is dependent on game file processing outside of the builder functionality itself. It exposes the builder to existential risk if those files stop working or become unavailable for some reason.
Vision Cards are difficult to search since so many units qualify for the units and the search takes them into account.
Also adding filtering options for vision cards such as premium or not would be helpful.
Searching for on use or preemptive abilities is currently very difficult. Even when you do find the item, it often says the name of the skill, but not what it does.