Journal
Short writing from engagements—blueprints, silent misses, clock drift, and honest scope.
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Write the instrumentation blueprint before the sprint starts
Event names invented mid-coding rarely survive the next rename of the same screen.
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Silent misses that invent funnel cliffs
A step that never fired can look like a product failure until someone walks the path with the stream open.
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KST cohorts and the quiet clock problem
Day-one retention can move when warehouses stay on UTC and product calendars stay on KST.
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What the measurement desk actually sells
Expect clearer measurement decisions—not a managed dashboard service or growth guarantee.
