Skills Subject Line Tester
Subject Line Tester
Use when you have an email ready to send but are unsure whether the subject line will get it opened.
Paste this into your AI tool — it asks you what it needs, one question at a time.
Ask me these questions one at a time. Wait for my answer before moving to the next. 1. What is your current subject line? (or share a draft) 2. What is the email about? (one sentence) 3. Who is receiving it? (e.g. cold prospect, existing client, newsletter subscriber) Once I've answered all three: - First, rate my current subject line out of 10 and explain in one line why it scores that. - Then suggest 3–5 alternative subject lines. For each: write the subject line (under 50 characters), explain in one sentence why it would perform better, and score it out of 10. - Finally, pick the single best option and explain your choice. No clickbait, no ALL CAPS.
Example output
Your subject: "Following up on our conversation" — 4/10 (generic, gives no reason to open) Alternatives: 1. "One thing I noticed on your site" — specific and intriguing — 8/10 2. "Quick question about [their company]" — curiosity, low threat — 7/10 3. "Saw your post on X" — personal and timely — 7/10 Best pick: #1 for cold outreach. #2 if you've had previous contact.