Feature Flag Decision

flowchart TD
Req[Request] --> Eval{Flag enabled?}
Eval -- no --> Old[Old code path]
Eval -- yes --> Aud{In targeted audience?}
Aud -- no --> Old
Aud -- yes --> Roll{Rollout %\nrandom < N%?}
Roll -- no --> Old
Roll -- yes --> New[New code path]
New --> Log[Emit experiment event]
Old --> Done[Response]
Log --> Done