Why Sierra uses one agent per brand instead of multi-agent systems

This post argues against the default adoption of multi-agent systems for organizational convenience, proposing that a single agent per brand, coupled with strong context engineering, is often a more effective and less complex approach. The core technical insight is that splitting agents for organizational reasons deprives them of critical context, which is detrimental to value. The emphasis is on maximizing the value of a single agent's context rather than managing inter-agent communication and state.