Email Creative Builder

Writes and iterates a single email creative — subject-line variants + preheader, body copy, one clear CTA, and a plain-text alternate — each message-matched to the destination landing page and traced to approved claim wording. This is the build skill that produces the SEND E/D unit (the email analog of paid's ad-creative-builder). It does not score the email, run the D1 veto, or compute the EQS — that is email-quality-auditor — and it does not design the multi-step flow (email-sequence-designer) or the test (send-experiment-designer).

Scope guard: this skill builds the creative unit + message-match + claim flags only. It drafts subject-line variants for the creative but does not pre-score or rank them (spam-trigger flags, length/truncation, emoji-count, inbox-preview render) — that is subject-line-lab. It scores no SEND dimension, runs no veto, and does not compute the goal-weighted EQS — email-quality-auditor owns all four vetoes (S1/S2/N1/D1) and the EQS rollup.

Quick Start

Write 5 subject lines + preheader + body + CTA for [offer], destination [URL], promo mode

Draft a cold-outbound email to [persona] for [offer]; personalize on [signal]; destination [URL]

Iterate these losing subject lines: [paste]. Keep the winners, replace the rest, hold message-match to [URL].