The only failures you are ready for are the ones you have rehearsed. Controlled experiments surface the surprises before your users do.
Start with a hypothesis
Each experiment states what should happen — "if we kill a node, traffic shifts and latency holds" — then injects the fault and checks reality against it.
- Blast-radius limits so an experiment stays contained
- Automated aborts the moment real users are affected
- Game days that turn findings into fixes
Make it routine
Resilience is not a one-time audit. We run small experiments continuously so confidence keeps pace with change.