Newsletter
Installation
SKILL.md
Subject Lines
- Curiosity gap—promise value, don't reveal everything
- Specific > vague: "5 tools I use daily" > "Useful tools"
- Numbers work—quantified promises feel tangible
- Personal: "you" and lowercase feels like friend
- Urgency when genuine—time-sensitive content only
- Test constantly—small changes, big impact on opens
- Avoid spam triggers—"FREE", all caps, excessive punctuation
Preview Text
- Extension of subject, not repetition
- Complete the curiosity—add context that increases open
- Don't waste on "View in browser"—prime real estate
- First line of email becomes preview if not set—control it