newsletter SKILL.md skillA
newsletter from openclaudia/openclaudia-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add openclaudia/openclaudia-skills/newsletter@git:20260212.78e31a7Pins git:20260212.78e31a7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- openclaudia/openclaudia-skills
- Path
skills/newsletter/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260212.78e31a7, committed Feb 12, 2026
- Size
- 8,211 bytes
- Repository stars
- 732
- License
- MIT
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.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# 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)
…Read the whole file at its exact version.
How to install
mdr add openclaudia/openclaudia-skills/newsletter@sha256:ea1925e454172367The line at the top of this page pins the label git:20260212.78e31a7, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_mdh5t67qz53kgub6)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Feb 12, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8211 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
openclaudia/openclaudia-skills · 732 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mdh5t67qz53kgub6 GET https://markdownregistry.com/api/v1/resolve?ref=openclaudia/openclaudia-skills/newsletter GET https://markdownregistry.com/api/v1/blob/ea1925e4541723671996d2cc547d7e07b4d8316a4c60d79e2f78794982aa7a1a
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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