The deeper takeaway: the last mile is the hard part

McGuinness ends on the point that both companies actually share, which is bigger than the architecture question. The real lesson from both is about taking an agent from prototype to production. He quotes the spirit of Anthropic's experience: when building agents, the last mile often becomes most of the journey. Code that works on a developer's machine needs significant engineering to become a reliable production system.

And the summary line that ties this whole folder together: an agent's capability comes from the quality of its context, the curated knowledge it can access, the tools it can operate, and the memory it retains. The most important task in building production agents is providing and supporting proper context. That is context engineering, and it is the common ground beneath the entire single-versus-multi debate.