Place Trade Offs On The Change Matrix

High impact / hard to reverse Use this bucket to decide review depth. High-impact or hard-to-reverse choices need explicit assumptions, alternatives, and validation before they harden. High impact / easier to change Lower impact / hard to reverse Lower impact / easier to change Choosing tenant ID as the shard key Setting the public API error format Changing a cache time-to-live from five to ten minutes Adding an internal dashboard panel for queue depth Selecting active-active multi-region topology Changing worker batch size after measurement

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