> "If I could short MCP, I would"

I mean, MCP is hard to work with. But there's a very large set of things that we want a hardened interface to out there - if not MCP, it will be something very like it. In particular, MCP was probably overly complicated at the design phase to deal with the realities of streaming text / tokens back and forth live. That is, it chose not to abstract these realities in exchange for some nice features, and we got a lot of implementation complexity early.

To quote the Systems Bible, any working complex system is only the result of the growth of a working simple system -- MCP seems to me to be right on the edge of what you'd define as a "working simple system" -- but to the extent it's all torn down for something simpler, that thing will inevitably evolve to allow API specifications, API calls, and streaming interaction modes.

Anyway, I'm "neutral" on MCP, which is to say I don't love it. But I don't have a better system in mind, and crucially, because these models still need fine-tuning to deal properly with agent setups, I think it's likely here to stay.