Cold email refiner

What it does

Paste a cold email. The skill scores it against 14 rules pulled from campaigns that clear an 8.5% reply rate, tells you which ones fail, and rewrites the failing parts instead of handing back a vague critique.

When to use it

• Before a sequence goes live
• When reply rate drops and you cannot tell why
• Reviewing copy written by someone else on the team

How to install

1. Download the zip below
2. In Claude, open Settings, then Capabilities, then Skills
3. Upload the zip and enable it

Rules it checks

• Subject line under 4 words
• No paragraph over 2 lines
• One ask, at the end, and only one
• Zero feature mentions before the pain is named