Newsletter writing
Curated, auditable, benchmark-ready Agent Skills library for Claude Code, Codex, OpenCode, Cursor, and more.
npx -y skills add shinzoxD/knackbox --skill newsletter-writingAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.
2 things to look at
- 27 days oldThe repository was created 27 days ago. New is not bad, but a brand new repository carrying a familiar-sounding name is the shape a typosquat arrives in, and there has been no time for anyone else to find a problem with it.
- 0 stars0 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.
What its author says it does
Copied from the file, not written here
Write email newsletters with a clear point, scannable structure, and one CTA. Use whenever the user asks for a newsletter draft, weekly digest email, subscriber update, or email issue for an audience list.
The file declares its own license as Apache-2.0. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.
SKILL.md
1.1 KB, as published. Nobody here has run it
Newsletter Writing
One issue, one primary point (or tight digest sections). Subject line earns the open; body earns the click; one main CTA.
Structure
Subject:
Preview:
Hook (2–4 lines)
## Section …
CTA
P.S. optional
Rules
- Subject honest; no clickbait lies.
- Short paragraphs; links with purpose.
- One primary CTA; secondary quiet.
- Do not invent metrics or subscriber counts.
- Match brand voice if samples given.
- Accessibility: meaningful link text.
Edge cases
- Digest issues: bullets + one feature story.
- Launch issues: clearer CTA, shorter.
- Re-engagement: why come back now.