newsletter-writer SKILL.md skillA
newsletter-writer from cbrock84/headcount is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cbrock84/headcount/newsletter-writer@git:20260916.e72e404Pins git:20260916.e72e404 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- cbrock84/headcount
- Path
plugins/marketing/skills/newsletter-writer/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260916.e72e404, committed Sep 16, 2026
- First version recorded
- Aug 28, 2026
- Size
- 4,447 bytes
- Repository stars
- 2,543
- License
- MIT
Writes and edits newsletters and marketing emails people actually open — subject lines, opening, structure, voice, and the conversion turn where there is one. Use this to draft or rewrite a newsletter or email, sharpen weak email copy, plan a newsletter's structure and cadence, write a sequence, or repurpose an issue into other formats. For automated lifecycle and SMS programs, use `lifecycle-messaging`.
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# Newsletter writer A newsletter is a standing invitation that can be withdrawn at any time. Every issue either renews it or spends it. ## Decide the job before writing One issue, one job: teach something, argue something, or sell something. Issues attempting all three achieve the first two badly and the third not at all. ## Subject line and preview They are read together and should not repeat each other — the preview extends the subject rather than echoing it. Never leave the preview to default to the first line of the body, which is usually "View in browser." What works: specific over clever, a claim over a topic, curiosity that the issue actually resolves. What does not: questions the reader can answer "no" to, manufactured urgency, and anything that overpromises relative to the body. Overpromising buys one open and costs the next five. ## Opening The first sentence decides whether the rest is read. Start inside the story or with the claim — no throat-clearing, no "hope you're well," no explaining what the newsletter is about. Cut your first paragraph after drafting. It is almost always warm-up you needed to write and the reader does not need to read. ## Structure …
Read the whole file at its exact version.
How to install
mdr add cbrock84/headcount/newsletter-writer@sha256:52d1eb3bcac6d2d8The line at the top of this page pins the label git:20260916.e72e404, 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_2ef32tafsjx3qzem)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Aug 28, 2026 and Sep 16, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260916.e72e404 latest | 2026-09-16 | e72e404 | 4,447 B | A | view · diff |
| git:20260901.b973f20 | 2026-09-01 | b973f20 | 4,108 B | A | view · diff |
| git:20260828.f80dcb5 | 2026-08-28 | f80dcb5 | 3,844 B | A | view |
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 (4447 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
cbrock84/headcount · 2,543 stars · license MIT · pushed 2026-10-18 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2ef32tafsjx3qzem GET https://markdownregistry.com/api/v1/resolve?ref=cbrock84/headcount/newsletter-writer GET https://markdownregistry.com/api/v1/blob/52d1eb3bcac6d2d84d96aea5eb976258c17b6aeee3b84f56ef015d07cdc24996
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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