SkillsOutbound CopywritingSubject Line Generator

Outbound Copywriting

Subject Line Generator

What it does

Generates 10+ subject line variations. Max 3 words, lowercase, optimized for open rates.

Trigger command

[subject-lines]Copy and paste into Claude

Use cases

  • Improve open rates with tested subject line patterns
  • Generate A/B test variants for existing campaigns
  • Find the right tone for different audiences
  • Scale subject line creation across multiple campaigns

Works with

Write Email

Outbound Copywriting

Write Sequence

Outbound Copywriting

A/B Test Designer

Campaign Operations

Campaign Optimizer

Campaign Operations

How to install

1

Go to claude.ai

Open Claude and navigate to your Projects section.

2

Create a new Project

Click "New Project" and give it a name (e.g., "Sales Skills").

3

Paste the skill

Add the skill instructions to your Project. Then type [subject-lines] to activate it.

Get all skills

ClaudeGTM includes every skill pre-built, plus video walkthroughs and templates.

Get ClaudeGTM — $297

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