home/categories/sales-marketing/sickn33-antigravity-awesome-skills-plugins-antigravity-awesome-skills-claude-skills-email-systems-skill-md
sales-marketingbusiness
email-systems
Email has the highest ROI of any marketing channel. $36 for every $1 spent. Yet most startups treat it as an afterthought - bulk blasts, no personalization, landing in spam folders.
maintainer
sickn33
更新日 4/7/2026
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quick start
Installation and usage
Email has the highest ROI of any marketing channel. $36 for every $1 spent. Yet most startups treat it as an afterthought - bulk blasts, no personalization, landing in spam folders.
インストール
$ install --globalskills.sh
使い方
インストール後、ターミナルで以下のコマンドを実行してこのスキルを使用できます：
skills use email-systems