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.

Installs: 486
Last 24h: —
Trending rank: —
Security: Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/openclaudia/openclaudia-skills --skill newsletter

01
Install
Run the command in your project. The CLI asks which agents to install for.
02
Describe the task
Ask your agent for something this skill covers. It loads newsletter automatically when relevant.
03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Newsletter Growth Skill

Q: How do I install newsletter?

Run npx skills add https://github.com/openclaudia/openclaudia-skills --skill newsletter in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/newsletter/ (personal) or .claude/skills/newsletter/ (project).

Q: Which AI agents can use newsletter?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Q: Is newsletter safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Q: Who maintains newsletter?

It is published by openclaudia in openclaudia/openclaudia-skills. It has 486 recorded installs.

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:

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
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
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)

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
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
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
Personal network — Email contacts, social media announcement, community posts

Tier 2: Growth (1,000 → 10,000)

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)
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
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
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+)

Paid acquisition — Facebook/Instagram ads to landing page, $1-5 CPA target
Podcast/video guest appearances — Mention newsletter as CTA
Giveaways — Viral giveaway campaigns (use KingSumo, Gleam)
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% of clicks convert
Digital products	2,000+ subscribers	$10-500 per product
Consulting/services	Any size	Varies
Courses	5,000+ subscribers	$50-500 per student

Sponsorship Rate Card

CPM = (Sponsorship price / Subscribers) × 1,000

Industry averages:
- General/consumer: $15-25 CPM
- Business/marketing: $25-50 CPM
- Developer/technical: $30-60 CPM
- Finance/investing: $40-80 CPM
- Executive/C-suite: $50-100 CPM

Deliverability

Must-Have Technical Setup

Check	Why
SPF record	Proves you're authorized to send from your domain
DKIM signing	Cryptographic signature preventing spoofing
DMARC policy	Tells receivers what to do with failed auth
Custom sending domain	Avoid shared IP reputation issues
Sunset inactive subscribers	Remove non-openers after 90 days

Avoid Spam Filters

Maintain text-to-image ratio (80% text, 20% images)
Include unsubscribe link (required by law)
Use a real reply-to address
Don't use URL shorteners (bit.ly triggers spam filters)
Warm up new sending domains gradually

Output Format

When creating a newsletter strategy, deliver:

# Newsletter Strategy: {Newsletter Name}

## Concept
- **Niche:** {topic/audience}
- **Format:** {curated/original/hybrid}
- **Frequency:** {daily/weekly/biweekly}
- **Value proposition:** {1-2 sentences — why subscribe?}

## Growth Plan

### Month 1: Foundation
{Specific action items}

### Month 2-3: Early Growth
{Specific action items}

### Month 4-6: Scale
{Specific action items}

## Content Template
{Issue template/structure}

## Monetization Roadmap
{Timeline for monetization milestones}

Important Notes

Consistency matters more than frequency. A reliable weekly newsletter beats an erratic daily one.
Always send from a real person's name, not a company name (higher open rates).
The reply is the most underrated metric. Ask questions. Read and respond to replies.
Clean your list quarterly. A 5,000-subscriber list with 50% open rate is worth more than 20,000 with 15%.
Always have a "Why am I getting this?" link for new subscribers who forgot they signed up.

FAQ

What does the newsletter skill do?

How do I install newsletter?

Run npx skills add https://github.com/openclaudia/openclaudia-skills --skill newsletter in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/newsletter/ (personal) or .claude/skills/newsletter/ (project).

Which AI agents can use newsletter?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is newsletter safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains newsletter?

It is published by openclaudia in openclaudia/openclaudia-skills. It has 486 recorded installs.