>LLMs change everything around us, how we manipulate the world, and how we get the signals back.
This is sounds a little too grandiose for me. Our physical lives at least seem quite unchanged. If you don't produce code or papers for a living you might even succeed in not thinking about LLMs at all. The "signals" we're getting have certainly multiplied and increased in amplitude, though.
Regarding Pi: If hands-off code production is the future wouldn't a harness with subagents be the obvious choice? I personally enjoy minimalism in software, if only for aesthetic reasons, but even then: Can't you spin up your own bespoke version easily?