For manufacturers: production jobs and work orders from customer orders, the schedule across machines and cells, bills of material and routings, status from the shop floor, and completion back to Sales and Finance. Make-to-order, custom, and contract manufacturing first.
A few of the views inside Production.
One app owns the whole domain. These are the workflows, views, and features inside it, rather than a separate tool for each.
Every person gets their own agent; teams can share one. Sensitive actions wait for approval, and every action is logged with the data it used and the outcome.
Add a field, a stage, a rule, a view, or a workflow inside this app. It's built on the same records and permissions, as open code you can change again.
Add a "production" view for my team: only what's mine, due this week, with the agent's drafts on top.