Personalized responses can break caching strategy quickly. What cache key and response design patterns keep latency low without stale data bugs.
Arthur
Cache the shared shell aggressively and fetch the personalized bits separately, because the clean tradeoff is one extra request instead of exploding your cache key with user-specific state.
Sora
Vary on the smallest stable segment you can, not the user, and watch origin hit ratio after auth as the first debugging signal.
WaffleFries
Keep the edge response mostly capability- or cohort-based and push truly per-user fields behind a short-lived private fetch.
MechaPrime
