Plan and grow an email newsletter. An agent skill from OpenClaudia/openclaudia-skills.
$ npx skills add OpenClaudia/openclaudia-skills --skill newsletter -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install OpenClaudia/openclaudia-skills newsletter --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/OpenClaudia/openclaudia-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/newsletter .claude/skills/newsletter && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "newsletter" agent skill from https://github.com/OpenClaudia/openclaudia-skills/tree/main/skills/newsletter into .claude/skills/newsletter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "newsletter", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/OpenClaudia/openclaudia-skills/tree/main/skills/newsletterType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add OpenClaudia/openclaudia-skills --skill newsletter -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install OpenClaudia/openclaudia-skills newsletter --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OpenClaudia/openclaudia-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/newsletter .agents/skills/newsletter && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "newsletter" agent skill from https://github.com/OpenClaudia/openclaudia-skills/tree/main/skills/newsletter into .agents/skills/newsletter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "newsletter", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add OpenClaudia/openclaudia-skills --skill newsletter -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install OpenClaudia/openclaudia-skills newsletter --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OpenClaudia/openclaudia-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/newsletter .cursor/skills/newsletter && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "newsletter" agent skill from https://github.com/OpenClaudia/openclaudia-skills/tree/main/skills/newsletter into .cursor/skills/newsletter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "newsletter", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/OpenClaudia/openclaudia-skills.git --path skills/newsletter--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add OpenClaudia/openclaudia-skills --skill newsletter -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install OpenClaudia/openclaudia-skills newsletter --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OpenClaudia/openclaudia-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/newsletter .gemini/skills/newsletter && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "newsletter" agent skill from https://github.com/OpenClaudia/openclaudia-skills/tree/main/skills/newsletter into .gemini/skills/newsletter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "newsletter", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install OpenClaudia/openclaudia-skills newsletterInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add OpenClaudia/openclaudia-skills --skill newsletter -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/OpenClaudia/openclaudia-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/newsletter .github/skills/newsletter && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "newsletter" agent skill from https://github.com/OpenClaudia/openclaudia-skills/tree/main/skills/newsletter into .github/skills/newsletter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "newsletter", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add OpenClaudia/openclaudia-skills --skill newsletter -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install OpenClaudia/openclaudia-skills newsletter --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OpenClaudia/openclaudia-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/newsletter .opencode/skills/newsletter && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "newsletter" agent skill from https://github.com/OpenClaudia/openclaudia-skills/tree/main/skills/newsletter into .opencode/skills/newsletter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "newsletter", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
newsletterPlan and grow an email newsletter. An agent skill from OpenClaudia/openclaudia-skills.
Newsletter is an agent skill from OpenClaudia/openclaudia-skills. 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.
Its SKILL.md is about 2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Writing & Content, covering Newsletters. It works with Substack. The repository describes itself as: 77 open-source marketing skills for Claude Code, Codex, and other AI coding agents. SEO, content, email, ads, analytics, and growth. The licence is MIT.
3 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 28bf209. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Newsletter loads about 2k tokens when it runs. Until then it costs about 74 tokens; SKILL.md has 805 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from OpenClaudia/openclaudia-skills at commit 28bf209, republished under its MIT licence (© OpenClaudia). 805 words, ~2,044 tokens.
.claude/skills/newsletter/SKILL.md (or your agent's skills folder).You are a newsletter growth strategist. Help plan content, grow subscribers, improve engagement, and monetize newsletters.
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:
The 3 newsletter archetypes:
Curated — Links + commentary (e.g., TLDR, Morning Brew)
Original — Single essay/article (e.g., Lenny's Newsletter, Stratechery)
Hybrid — Original intro + curated links (most common)
| 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).
Lead magnet — Offer a free resource in exchange for email
Landing page optimization
Content-driven signup
Personal network — Email contacts, social media announcement, community posts
Referral program
Cross-promotions
Social media funnel
SEO-driven landing pages
| 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 |
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-openersEmail 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| 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 |
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| 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 |
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}© OpenClaudia, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in skills/newsletter of OpenClaudia/openclaudia-skills.
Open the folder on GitHubat commit 28bf209
Newsletter next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Newsletter this skillOpenClaudia/openclaudia-skills | 713 | — | ~2k | Automated safety check: Pass | MIT | |
| Shakespeare Writing StudioZCZHAO-1999/shakespeare-writing-studio | 178 | — | ~1.5k | Automated safety check: Pass | MIT | |
| Content Trend Researcheralirezarezvani/claude-code-skill-factory | 882 | 1 repos | ~2.1k | Automated safety check: Pass | MIT | |
| Serenity Replyleslieyeo/serenity-reply | 135 | — | ~3k | Automated safety check: Pass | MIT | |
| End-of-Article CTA Designersamber/cc-skills | 227 | — | ~3.1k | Automated safety check: Pass | MIT | |
| Newsletter DigestVarnan-Tech/opendirectory | 674 | — | ~1.9k | Automated safety check: Pass | MIT |
ZCZHAO-1999/shakespeare-writing-studio
Produce publish-ready Chinese and English writing packages across WeChat articles, Medium/Substack essays, research notes, founder memos, op-eds, speeches, data storytelling, statistical graphics…
alirezarezvani/claude-code-skill-factory
Advanced content and topic research skill that analyzes trends across Google Analytics, Google Trends, Substack, Medium, Reddit, LinkedIn, X, blogs, podcasts, and YouTube to generate data-driven…
leslieyeo/serenity-reply
Serenity (@aleabitoreddit) 的思维框架与表达方式。基于 6 维度深度调研（1700+ 推文、Substack 长访谈、第三方分析、批评者观点）， 提炼 5 个核心心智模型、8 条决策启发式和完整的表达 DNA。
samber/cc-skills
Interviews you about objective, audience and context, then designs an end-of-article call to action with copy, placement, A/B test plan and accessibility check.
Varnan-Tech/opendirectory
Aggregates RSS feeds from the past week, synthesizes the top stories using Gemini, and publishes a newsletter digest to Ghost CMS.
aiskilloftheweek/claude-ai-skill-of-the-week
Analyzes long-form content (transcripts, articles, interviews, webinars, podcast notes) and extracts the 3 best content ideas for any publishing platform — LinkedIn, Substack, blog, newsletter…
OpenClaudia/openclaudia-skills
Build an interactive competitive-traffic report for any company and its rivals — monthly visits (SimilarWeb), organic search traffic and Domain Rating (Ahrefs) — as one self-contained HTML page with…
OpenClaudia/openclaudia-skills
Score how hard a keyword is to rank for in the AI-search era — page-level URL Rating of real competitors (not just domain DR), Ahrefs keyword difficulty, and whether a given site already ranks or is…
OpenClaudia/openclaudia-skills
Audit EVERY Google Search Console property at once — rank all sites by clicks and impressions with period-over-period deltas, then diff keywords per site to surface what is newly ranking, rising…
OpenClaudia/openclaudia-skills
Fetch website traffic estimates (monthly visits, traffic sources, top countries, keywords, engagement, ranks) for any domain from SimilarWeb.
OpenClaudia/openclaudia-skills
Manages Ahrefs API usage in Python using ahrefs-python library.
OpenClaudia/openclaudia-skills
Design, plan, and analyze A/B tests with statistical rigor. An agent skill from OpenClaudia/openclaudia-skills.
Works with
Categories
Plan and grow an email newsletter. An agent skill from OpenClaudia/openclaudia-skills. Newsletter is an agent skill from OpenClaudia/openclaudia-skills. Plan and grow an email newsletter.
Newsletter fits situations like: the user says newsletter strategy; grow my newsletter; newsletter content; email newsletter.
Run `npx skills add OpenClaudia/openclaudia-skills --skill newsletter -a claude-code`. Or copy the skill folder (skills/newsletter in OpenClaudia/openclaudia-skills) into .claude/skills/newsletter in your project. Claude Code loads it when a task matches its description.
Run `npx skills add OpenClaudia/openclaudia-skills --skill newsletter -a codex`. Or copy the skill folder (skills/newsletter in OpenClaudia/openclaudia-skills) into .agents/skills/newsletter in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add OpenClaudia/openclaudia-skills --skill newsletter -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/newsletter, .gemini/skills/newsletter, .github/skills/newsletter and .opencode/skills/newsletter in your project.
SKILL.md names no scripts, command-line tools or credentials: Newsletter is instructions for the agent only.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
Newsletter is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 2k tokens (SKILL.md is roughly 8.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Newsletter: Shakespeare Writing Studio (ZCZHAO-1999/shakespeare-writing-studio, 178 stars), Content Trend Researcher (alirezarezvani/claude-code-skill-factory, 882 stars), Serenity Reply (leslieyeo/serenity-reply, 135 stars) and End-of-Article CTA Designer (samber/cc-skills, 227 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
OpenClaudia (a GitHub organization) maintains it in OpenClaudia/openclaudia-skills, which has 713 GitHub stars. The repository holds 74 skills in this directory. The repository was last updated on September 18, 2026.
Source: OpenClaudia/openclaudia-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.
