subject-line-lab
Use when the user asks to "generate subject line variants", "pre-score my subject lines", or "will this subject get truncated / trigger spam filters"; produces a labeled subject + preheader variant set and a per-variant heuristic pre-score card — spam-trigger flags, length/truncation across desktop
By aaron-he-zhu · 723 installs
npx skills add aaron-he-zhu/aaron-marketing-skills --skill subject-line-lab