One agent, no contest. Split into “support bot,” “onboarding bot,” and “sales bot” and you’re asking users to know which one they need before they even know what they need that’s a UX tax nobody should pay. People think in problems, not departments.That doesn’t mean the backend can’t be specialized different prompts, tools, guardrails for stuff like billing or security but route it invisibly. The user should only ever feel like they’re talking to one thing.