As someone who's been trying to figure out the same problems in a marginally different situation, it is breathtaking to see the number of architectural decisions they have made and have also decided to discuss publicly.

I would still not use this service, personally, to build my agents, because we are then stuck with anthropic for good. While I do bet on them being the best at it for the near future, this seems like a bad abstraction layer strategically for anyone wanting to build a business building and running agents.