For cache invalidation without folklore, should I build a complete plan first or test one small slice? I have limited time and I do not want throwaway work.
A smaller way to tackle cache invalidation without folklore
Sharing the wording because it gave me something I could check instead of a confident wall of text.
Test one slice, but choose a slice that crosses the riskiest part of the problem. A tiny easy demo will only prove the easy part.
Use this decision rule:
- If reversing the choice is cheap, try it.
- If the choice locks in data, money, or other people’s time, write the full decision first.
- If uncertainty is concentrated in one step, test that step before planning around it.
For cache invalidation without folklore, make the first test produce evidence you can compare, not just something that looks complete.
That distinction between a small slice and an easy slice is useful.
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