Debugging scales when the assumptions are visible

I keep thinking the thing that actually scales isn’t “being good at debugging,” it’s making your assumptions explicit enough that someone else can pick up the thread without starting from zero. The weird part is that this feels slower in the moment and much faster the third time the same class of bug shows up.

Has anyone found a habit or template that actually helps with that, or does every team just reinvent the same postmortem notes in slightly different fonts?

Look — I’ve had the best luck with a short “what we believed / what was true / how we can tell next time” note right in the ticket, because it forces the assumptions out of people’s heads. Postmortems in a doc rot fast; the breadcrumb in the work item tends to survive long enough for the third recurrence.