"Seam" has been stretched by AI from its original legacy-code context to any point in code where something can be plugged in. I actually asked an AI about this a few weeks ago because I was surprised by the consistent, frequent use of "seam".

Frequent words I see from GPT: "shape", "seam", "lane", "gate" (especially as verb), "clean", "honest", "land", "wire", "handoff", "surface" (noun), "(un)bounded", "semantics" (but this one is fair enough), and sometimes "unlock"

It feels like AI really likes to pick the shortest ways to express ideas even if they aren't the most common, which I suppose would make sense if that's actually what's happening.