Event Sourcing Architect

This one's for when you need full audit trails, time travel queries, or complex workflows that CRUD can't handle. It covers the full event sourcing stack: designing immutable event streams, building CQRS projections, orchestrating sagas across aggregates, and handling eventual consistency. The skill pushes you toward durable execution frameworks like DBOS for process managers, which is smart since keeping saga state consistent is notoriously tricky. Fair warning though: it explicitly tells you to back off if your domain is simple or you need immediate consistency everywhere. Event sourcing adds real complexity, so this is most useful when you actually need what it provides, not just because it sounds architecturally interesting.