content-newsletter

content-newsletter is a skill for Claude Code from modu-ai/moai-cowork. It costs 192 tokens per session (2,634 once invoked), scanned A, original, Apache-2.0.

A newsletter planning and writing tool for email titles, preview text, body content, calls to action, subscriber growth, and publishing calendars.

In plain words
What is it for?
Use it to create weekly or monthly newsletters, subject-line options, subscriber plans, trend roundups, and newsletter calendars.
Why use it?
It helps maintain a regular newsletter and structure each issue so readers move from the opening message to a useful insight and next action.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the moai-marketer plugin — 21 skills, 2 agents shipped together

Good fit Use it to create weekly or monthly newsletters, subject-line options, subscriber plans, trend roundups, and newsletter calendars.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/modu-ai/moai-cowork/content-newsletter
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add modu-ai/moai-cowork --skill content-newsletter
Clone the repo
git clone --depth 1 https://github.com/modu-ai/moai-cowork

Made for: Claude Code.

Or install moai-marketer, the plugin that ships this one along with the rest of its 21 skills, 2 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for content-newsletter

README.md
[![agentmods](https://agentmods.dev/badge/skills/modu-ai/moai-cowork/content-newsletter/github.svg)](https://agentmods.dev/skills/modu-ai/moai-cowork/content-newsletter)
Your own site
<a href="https://agentmods.dev/skills/modu-ai/moai-cowork/content-newsletter"><img src="https://agentmods.dev/badge/skills/modu-ai/moai-cowork/content-newsletter/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for content-newsletter

Your own site · 80×15
<a href="https://agentmods.dev/skills/modu-ai/moai-cowork/content-newsletter"><img src="https://agentmods.dev/badge/skills/modu-ai/moai-cowork/content-newsletter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 192 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,634 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00192 $0.02634
Opus 5 $0.00096 $0.01317
Sonnet 5 $0.00038 $0.00527
Haiku 4.5 $0.00019 $0.00263

Measured 8d ago against content hash 7c3309b34da5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

content-newsletter scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/moai-marketer/skills/content-newsletter/SKILL.md · 211 lines

How it starts

The opening of the file, as written. The whole thing — 211 lines — stays where its author put it; the contents beside it link to each section on GitHub.

뉴스레터 (Newsletter)

개요

이메일 뉴스레터를 기획하고 작성합니다. 뉴스레터 기획부터 발행까지 전 과정, 구독자 확보 전략, 오픈율·클릭률 최적화, 위클리·먼슬리 콘텐츠 캘린더 연동까지 종합적인 뉴스레터 서비스를 제공합니다.

트리거 키워드

뉴스레터, 이메일 뉴스레터, 구독자, 뉴스레터 발행, 위클리, 먼슬리, 콘텐츠 구독

실전 뉴스레터 패턴 (한국 시장)

1. 오픈율 30%+ 제목 패턴

패턴 예시 오픈율
숫자 + 혜택 "이번 주 읽어야 할 AI 뉴스 3" ★★★
호기심 갭 "넷플릭스가 OO를 포기한 이유" ★★★★
개인화 "[이름]님이 놓친 ~" ★★★
시간 제한 "오늘 자정 마감, ~ 신청을 안 하셨다면 지금" ★★★★
질문형 "왜 ~는 ~할까?" ★★★
역설·반전 "성공하지 마세요" ★★★★
트렌드 차용 "2026 OO 결산" ★★★

40자 이내 + 이모지 1개 이하 + 첫 단어에 핵심.

2. 뉴스레터 본문 4 구조 (Hook → Story → Insight → CTA)

[Hook]    1~2 문장 — 시선 끌기 (질문·통계·역설)
[Story]   5~10 문단 — 본문 (한 인사이트 = 한 단락)
[Insight] 1~2 문단 — 독자 적용 가능한 한 줄 결론
[CTA]     1 행동 — 구체적 다음 단계 (1개만)

3. 발행 주기 매트릭스

주기 적정 분량 적합 컨셉
주간 (월 4회) 800-1500자 트렌드·뉴스 큐레이션
격주 (월 2회) 1500-3000자 깊이 있는 분석
월간 (월 1회) 3000-5000자 종합 리포트·시즌 가이드
일간 (주 5회) 500자 이내 짧은 인사이트·팁

같은 주기 1년 유지가 가장 큰 성장 요인.

4. 구독자 페르소나 매핑

뉴스레터는 1명에게 1:1 편지처럼 — 페르소나 1명 명확히.

persona:
  name: "30대 후반 마케팅 매니저"
  job: "B2B SaaS 회사 마케팅 팀장"
  pain: "데이터 분석 시간 부족·트렌드 따라가기 어려움"
  habit: "주간 출퇴근길 10분 읽기"
  preference: "실전 적용 가능한 1~2 인사이트"

페르소나 1명 → 모든 콘텐츠 결정 (제목·분량·톤·발행 시간).

5. 구독자 증가 5 채널

  1. 기존 채널 크로스 프로모션 — 블로그·SNS에 가입 폼
  2. 추천 시스템 — "친구에게 추천 시 ~"
  3. 랜딩 페이지 강력화 — 가입 후 첫 이메일 미리보기
  4. 콘텐츠 부분 공개 — 풀버전 가입자 전용
  5. 콜라보 — 유사 뉴스레터 상호 추천 (1만 구독 이상부터 가능)

워크플로우

1단계: 뉴스레터 목적 파악

  • 목적: 브랜드 인지 / 리드 육성 / 고객 관계 / 수익화
  • 발송 주기: 주간 / 격주 / 월간
  • 타겟 독자: 직군, 관심사, 구독 동기

2단계: 뉴스레터 구조 설계

[제목 (Subject Line)]
- 문자 수: 40자 이내 (모바일 잘림 방지)
- 이모지: 1개 이내 (너무 많으면 스팸 처리)
- 개인화: "[이름]님," 접두어 (오픈율 +20%)
- 공식: [숫자/질문/혜택] + [키워드]
  예: "이번 주 읽어야 할 AI 뉴스 3가지"

[프리헤더 (Preview Text)]
- 40~100자 이내 (제목 보완 설명)

[본문 구조]
① 인트로 (3~5문장): 이번 호 핵심 메시지
② 메인 콘텐츠 (1~3개 섹션):
   - 큐레이션: 업계 뉴스 + 편집자 코멘트
   - 인사이트: 독자가 얻을 수 있는 핵심 관점
   - 실용 정보: 도구, 팁, 체크리스트
③ CTA (1개만): 명확한 다음 행동 유도
④ 마무리: 다음 호 예고 + 구독 유지 동기

Read the full file on GitHub · 211 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 211 lines · 192 tokens per session scan A 7c3309b34da5

Subscribe to this mod's changes

content-newsletter is a skill published in the GitHub repository modu-ai/moai-cowork (300 stars, last pushed 9d ago), licensed Apache-2.0. It adds 192 tokens to every session and 2,634 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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