email-subject-line-tester
Email subject line optimization agent. Generates 10 subject line variants for any email, scores each by open rate predictors (urgency, personalization, curiosity, length, emoji use), and recommends the top 3 for A/B testing. Triggers: subject line, email subject, subject line tester, subject line generator, email open rate, ab test email, subject line optimization, email copywriting, subject line ideas, newsletter subject, email marketing subject
