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Skill

/newsletter

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

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openclaudia-skills
73678 skills

Claude Code

$ npx -y skills add openclaudia/openclaudia-skills --skill newsletter --agent claude-code

SKILL.md

newsletter.SKILL.md
name: newsletter
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.

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

| Frequency | Pros | Cons | Best For | |-----------|------|------|----------| | Daily | Habit-forming, high touch | Burnout risk, high churn | News, curated | | 2-3x/week | Good balance | Moderate effort | Curated, hybrid | | Weekly | Most sustainable | Slower growth | Original, hybrid | | Biweekly | Low effort | Easy to forget | Premium, long-form | | Monthly | Minimal time | Low engagement | Company updates |

**Recommendation:** Start weekly. Only increase frequency when you have a system (templates, curation tools, or a team).

Growth Strategies

Tier 1: Foundation (0 → 1,000 subscribers)

1. **Lead magnet** — Offer a free resource in exchange for email

  • Checklist, template, cheat sheet, toolkit, mini-course
  • Must be instantly valuable (no "coming soon")
  • Place on: landing page, blog sidebar, exit intent popup

2. **Landing page optimization**

  • Clear value proposition above the fold
  • Social proof (subscriber count, testimonials, "as featured in")
  • Show a sample issue
  • Single CTA, no distractions

3. **Content-driven signup**

  • Add newsletter CTA to every blog post
  • Create content upgrades (bonus content in exchange for email)
  • Embed signup forms in content, not just sidebar

4. **Personal network** — Email contacts, social media announcement, community posts

Tier 2: Growth (1,000 → 10,000)

5. **Referral program**

  • Reward subscribers who refer others
  • Milestone rewards: 1 referral = bonus content, 5 = exclusive access, 10 = merchandise/call
  • Tools: SparkLoop, ReferralHero, or built-in (Beehiiv, ConvertKit)

6. **Cross-promotions**

  • Partner with complementary newsletters (similar audience, not competing)
  • Swap recommendations: "If you enjoy this, you'll also love {partner newsletter}"
  • Paid cross-promotion: $1-5 per subscriber

7. **Social media funnel**

  • Post newsletter excerpts on Twitter/LinkedIn with "Subscribe for more"
  • Carousel previews of newsletter content on Instagram
  • Turn newsletter insights into Twitter threads

8. **SEO-driven landing pages**

  • Create keyword-targeted pages that lead to newsletter signup
  • "Best {topic} newsletters" comparison pages
  • Archive past issues as searchable blog posts

Tier 3: Scale (10,000+)

9. **Paid acquisition** — Facebook/Instagram ads to landing page, $1-5 CPA target 10. **Podcast/video guest appearances** — Mention newsletter as CTA 11. **Giveaways** — Viral giveaway campaigns (use KingSumo, Gleam) 12. **Acquisitions** — Buy smaller newsletters in your niche

Engagement & Retention

Key Metrics

| Metric | Good | Great | Action if Below | |--------|------|-------|----------------| | Open rate | 35-45% | 50%+ | Improve subjects, clean list | | Click rate | 3-5% | 7%+ | Better CTAs, more relevant links | | Unsubscribe rate | <0.5% | <0.2% | Segment, reduce frequency | | Reply rate | 1-2% | 3%+ | Ask questions, be personal | | Growth rate | 5-10%/mo | 15%+/mo | Double down on top acquisition channel |

Re-engagement Campaign

For subscribers who haven't opened in 60+ days:

Email 1 (Day 0): "Still interested in {topic}? Here's what you missed"
  → Share 3 best recent issues

Email 2 (Day 7): "Should I remove you?"
  → Direct ask: click to stay, or we'll unsubscribe you

Email 3 (Day 14): "Last chance — we're cleaning our list"
  → Final warning, then remove non-openers

Welcome Sequence

Email 1 (Immediate): Welcome + lead magnet delivery + "what to expect"
Email 2 (Day 2): Your story + best issue ever (showcase value)
Email 3 (Day 5): "Reply and tell me..." (build relationship)
Email 4 (Day 7): Social proof + referral ask

Monetization

| Model | When to Start | Revenue Potential | |-------|--------------|-------------------| | Sponsorships | 1,000+ subscribers | $25-50 CPM | | Paid subscriptions | 5,000+ free subscribers | $5-20/month | | Affiliate links | Any size | 5-15% o

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@openclaudia
Ships withopenclaudia-skills

77 open-source marketing skills for Claude Code, Codex, and other AI coding agents. SEO, content, email, ads, analytics, and growth.

Stars on GitHub

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Questions about newsletter.

Which coding agents can use newsletter?
newsletter installs in Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode and Windsurf with the skills CLI, using each agent's flag shown on this page. Flowy's auto-invocation, which fires a skill when your prompt matches, runs in Claude Code only.