LeadOS has four building blocks: website for the domain, widget for embedding, agent for replies and lead space for the inquiry. Many setup mistakes happen because these layers feel like one setting. Then it becomes unclear why a widget looks different or a lead appears in the wrong place.
Check the chain in this order: website with allowed domain, widget with position and design, agent with knowledge and rules, lead space as the result of a qualified inquiry.
Start with a narrow boundary: which website, space, file, recipient or decision is affected? This makes the task reviewable instead of turning it into a broad catch-all request.
A useful work order is: “Explain our LeadOS setup as a mapping of website, widget, agent and lead space with purpose, owner and review step.” For important cases, add that uncertainties must be marked visibly instead of being filled in silently.
Pay special attention to domain, widget ID, agent, lead space, team handoff and allowed contact methods. These points decide whether the result is only useful for the moment or can be found, checked and continued by the team later.
Do not treat the widget as the agent. The widget displays the chat; the agent controls content, tone and handoff.
Separating the four layers makes multi-site, variant and team setups much easier to manage.