subject-line-lab
在送测前筛掉有问题的主题，节约测试名额并提高投放效果。
批量生成并启发式预评分主题行与预头，检测截断与垃圾触发器。
批量生成主题行 + 预头并做启发式预打分，检测会不会被截断、含有垃圾词触发器或表情过多导致预览不友好。适合在 A/B 测试前快速筛掉弱候选，省去跑真正测试的成本。特色是给出桌面/移动的截断预览、垃圾触发标记和每条的预估得分，让你先把泡沫剪掉再去实测。
▸ 展开 SKILL.md 英文原文
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 + mobile, emoji-count, and the inbox preview render (from-name + subject + preheader) — before any test is run. Not for the body copy or CTA — use email-creative-builder; not for the A/B test design or significance read — use send-experiment-designer; not for the profile-weighted EQS or the S1/S2/N1/D1 vetoes — use email-quality-auditor. 邮件主题行生成/主题行预打分/截断与垃圾词检查
帮我安装这个 skill：https://raw.githubusercontent.com/aaron-he-zhu/aaron-marketing-skills/main/email/engage/subject-line-lab/SKILL.mdcurl -fsSL "https://raw.githubusercontent.com/aaron-he-zhu/aaron-marketing-skills/main/email/engage/subject-line-lab/SKILL.md"# Subject Line Lab Generates a labeled subject-line + preheader variant set and **heuristically pre-scores** each variant — spam-trigger flags, desktop + mobile length/truncation, emoji count, and the rendered inbox preview (from-name + subject + preheader) — so weak candidates are cut *before* they burn a test cell. This is the pre-test bench for the SEND **E (Engagement)** lever: it sharpens the subject/preheader unit that `email-creative-builder` drafts and hands the ranked survivors, each with a stable variant id, to `send-experiment-designer`. **Scope guard**: this skill drafts and pre-scores subject + preheader variants only. It does not write the body copy or CTA ([email-creative-bu