The system shows what was observed, what the model inferred, what remains uncertain, and who can accept, override, investigate, sign, or act.
A prototype can demonstrate retrieval, analysis, drafting, or orchestration quickly. Enterprise deployment is slower because identity, permissions, tool access, data boundaries, evaluation, exception handling, monitoring, and rollback must be engineered around it. Agent and MCP-style tool use makes that control problem more important because the system can change records, not merely suggest text.
In aviation, infrastructure, pharmacy, nuclear medicine, medical devices, and regulated submissions, an error can propagate into physical operations or an authoritative record. Human review therefore needs more than a button. It needs evidence arranged for efficient challenge and independent controls capable of detecting an answer that looks plausible locally but fails at the system level.