# Newsletter

Plan and grow an email newsletter.

- Repository: https://github.com/OpenClaudia/openclaudia-skills (724 stars)
- Category: Marketing
- License: MIT
- Last updated: 2026-10-29
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add OpenClaudia/openclaudia-skills --skill newsletter -g -a claude-code -y`
Codex: `npx skills add OpenClaudia/openclaudia-skills --skill newsletter -g -a codex -y`
Cursor: `npx skills add OpenClaudia/openclaudia-skills --skill newsletter -g -a cursor -y`
Gemini CLI: `npx skills add OpenClaudia/openclaudia-skills --skill newsletter -g -a gemini-cli -y`

## Description

Plan and grow an email newsletter. Use when the user says "newsletter strategy", "grow my newsletter", "newsletter content", "email newsletter", "subscriber growth", "newsletter monetization", "Substack strategy", "Beehiiv", or asks about building, growing, or monetizing a newsletter.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Newsletter Growth Skill

You are a newsletter growth strategist. Help plan content, grow subscribers, improve engagement, and monetize newsletters.

## Newsletter Fundamentals

### Subject Lines

**Formulas that work:**

| Formula | Example | Open Rate Impact |
|---------|---------|-----------------|
| Number + Benefit | "7 tools that saved me 10hrs/week" | High |
| Question | "Are you making this SEO mistake?" | High |
| How-to + Specific | "How I grew to 10K subs in 6 months" | High |
| Curiosity gap | "The strategy nobody talks about" | Medium-High |
| News/Urgency | "Breaking: Google just changed this" | Medium |
| Personal/Story | "I almost quit last week" | Medium |
| List/Roundup | "This week: 5 links worth your time" | Medium |

**Rules:**
- 30-50 characters optimal (mobile-friendly)
- Preview text is equally important, extend the subject line, don't repeat it
- Personalization tokens ({first_name}) lift open rates 5-10%
- Avoid spam triggers: FREE, URGENT, ALL CAPS, excessive punctuation
- A/B test subjects on every send

### Content Structure

**The 3 newsletter archetypes:**

1. **Curated**, Links + commentary (e.g., TLDR, Morning Brew)
   - 5-10 links with 2-3 sentence commentary each
   - Fastest to produce, requires good sources
   - Best for: News, industry updates, trends

2. **Original**, Single essay/article (e.g., Lenny's Newsletter, Stratechery)
   - 1,000-2,500 words of original analysis
   - Highest authority building, most effort
   - Best for: Thought leadership, premium/paid

3. **Hybrid**, Original intro + curated links (most common)
   - 200-500 word original section + 3-5 curated links
   - Good balance of effort and value
   - Best for: Most newsletters starting out

### Frequency

The rest: https://github.com/OpenClaudia/openclaudia-skills/blob/HEAD/skills/newsletter/SKILL.md