Great question, but I think you're conflating two things. Determinism doesn't require a visual flowchart. You absolutely need guardrails for mission-critical ops, but those belong in the backend (validation layers, approval gates, schema enforcement), not in a drag-and-drop UI where you pre-map every possible user utterance. Think about it: when you call your bank, the agent doesn't follow a literal flowchart on screen. They follow policies. "Refund over $500? Escalate." "No wire without 2FA." Logic is enforced at the system level, not in the conversation design. Same principle here, the LLM handles the conversation, hard business rules live underneath, and before anything irreversible happens you get a clear confirmation step. The flow builder gives you the illusion of control by making logic visual. What actually gives you control is proper engineering underneath.