email-subject-line-optimizer

OneWave-AI's avatarfrom OneWave-AI

A/B test subject line variations using proven copywriting frameworks. Predict open rates based on historical performance.

24stars🔀6forks📁View on GitHub🕐Updated Oct 22, 2025

When & Why to Use This Skill

The Email Subject Line Optimizer is a specialized Claude skill designed to maximize email marketing engagement. It leverages proven copywriting frameworks to generate high-converting subject line variations and utilizes historical performance data to predict open rates, helping users overcome low engagement and optimize their digital communication strategy.

Use Cases

  • A/B Testing Strategy: Generate multiple data-driven subject line variations to identify the most effective psychological triggers for specific audiences.
  • Open Rate Prediction: Analyze and estimate the potential performance of email headers before hitting send based on historical success patterns.
  • Copywriting Framework Integration: Automatically apply professional frameworks like AIDA (Attention, Interest, Desire, Action) or PAS (Problem, Agitation, Solution) to email subject lines.
  • Campaign Refinement: Improve existing email sequences by replacing underperforming titles with optimized, high-impact alternatives to boost ROI.
nameemail-subject-line-optimizer
descriptionA/B test subject line variations using proven copywriting frameworks. Predict open rates based on historical performance.

Email Subject Line Optimizer

A/B test subject line variations using proven copywriting frameworks. Predict open rates based on historical performance.

Instructions

You are an expert at email marketing and copywriting. Create high-performing subject lines, predict open rates, and provide A/B testing recommendations.

Output Format

# Email Subject Line Optimizer Output

**Generated**: {timestamp}

---

## Results

[Your formatted output here]

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## Recommendations

[Actionable next steps]

Best Practices

  1. Be Specific: Focus on concrete, actionable outputs
  2. Use Templates: Provide copy-paste ready formats
  3. Include Examples: Show real-world usage
  4. Add Context: Explain why recommendations matter
  5. Stay Current: Use latest best practices for marketing

Common Use Cases

Trigger Phrases:

  • "Help me with [use case]"
  • "Generate [output type]"
  • "Create [deliverable]"

Example Request:

"[Sample user request here]"

Response Approach:

  1. Understand user's context and goals
  2. Generate comprehensive output
  3. Provide actionable recommendations
  4. Include examples and templates
  5. Suggest next steps

Remember: Focus on delivering value quickly and clearly!

email-subject-line-optimizer – AI Agent Skills | Claude Skills