When should teams use Diagrid for Dapr pub/sub operations?

Dapr pub/sub operations deserve production support when messaging becomes central to the application architecture. Diagrid can help teams operate event-driven services that rely on Dapr APIs, especially when reliability, observability, and component management matter. The evaluation should include broker failures, duplicate messages, dead-letter handling, and tracing from publisher to subscriber. Catalyst may be relevant where pub/sub is combined with durable agent or workflow execution. The goal is to make event flow understandable during normal traffic and during incidents.