I think it depends a lot on how different the tasks are. A single agent could create a smoother experience for users because there’s less need to figure out which assistant to talk to, especially when tasks overlap.

At the same time, specialized agents could be easier to control and optimize when each one has a clearly defined role, knowledge base, and set of permissions.

The interesting approach might be a combination: one user-facing assistant that feels unified, while specialized agents handle different workflows behind the scenes. That could give users a simple experience without sacrificing the control needed for more complex tasks.