Your KB Changed. The Search Index Didn't — Anatomy of a 9-Day Silent Desync | KB-Ops Deep Dive
The same refund line: curl it locally, you get the new wording; curl it in prod, you get the 9-day-old 'not as good as Taobao.' Between the source file and prod sat one step I assumed was automatic and was actually manual. This is the engineering postmortem: two stacked silent-desync root causes + how 33 test-feedback rows cluster into 16 with one cause + why an all-green dashboard hid it + 10 gates you can add to your own KB pipeline this week. Twenty minutes in, you can find the same hole in your own source-plus-derived-index system.
Jun 3, 2026·20 min read