> Why are we reinventing the wheel so often instead of improving a common SDK or open framework?

Welcome to the world of software technology, can I interest you in one of the 87 JavaScript frameworks out there that all manipulate an HTML DOM in one way or another?

Setting the sarcasm aside, I think there are "AI" companies popping up which do these types of things - orchestration, agent libraries, etc. so it makes some sense for each AI company to have their own flavor of those available.

Edit to add: I put "AI" company in quotes because at a technical level these companies/apps aren't creating AI themselves, they are wrapping AI HTTP APIs.