Dynamic Content Personalizer Takes an already-written email creative plus the segment map (or the raw export columns) and specifies the personalization layer : a merge-tag map where every tag has a stated fallback, conditional-content blocks with per-segment variations, a fallback-safety audit that no empty field or dead conditional can render, and a PII guard on which fields are even allowed into the body. This is the SEND E (Engagement/personalization) lever. It does not build segments, write the base copy, or score the program. Scope guard : this skill wires personalization onto existing c…