What is newsletter-writer?

A workflow for writing newsletters, product updates and other email messages for customers and potential customers.

Use it to draft ongoing customer communications, curate blog posts and case studies, and tailor content using subscriber groups, engagement results and unsubscribe patterns.

It combines a content library with email performance information, helping writers choose relevant material and learn from earlier messages.

newsletter-writer — Skill for Claude Code by taizen-ai

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 taizen-ai/taizen-claude-plugins --skill newsletter-writer

Clone the repo

git clone --depth 1 https://github.com/taizen-ai/taizen-claude-plugins

Made for: Claude Code.

Or install taizen-gtm-skills, the plugin that ships this one along with the rest of its 30 skills, 21 MCP servers.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/taizen-ai/taizen-claude-plugins/newsletter-writer/github.svg)](https://agentmods.dev/skills/taizen-ai/taizen-claude-plugins/newsletter-writer)

Your own site

<a href="https://agentmods.dev/skills/taizen-ai/taizen-claude-plugins/newsletter-writer"><img src="https://agentmods.dev/badge/skills/taizen-ai/taizen-claude-plugins/newsletter-writer/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/taizen-ai/taizen-claude-plugins/newsletter-writer"><img src="https://agentmods.dev/badge/skills/taizen-ai/taizen-claude-plugins/newsletter-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,526 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00024	$0.03526
Opus 5.5	$0.00010	$0.01410
Sonnet 5.5	$0.00005	$0.00705
Haiku 4.5	$0.00002	$0.00353

Measured 2mo ago against content hash b37f67223a41, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

newsletter-writer 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 2mo 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/taizen-gtm-skills/skills/newsletter-writer/SKILL.md · 606 lines

How it starts

The opening of the file, as written. The whole thing — 606 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create engaging newsletters and email communications for customers and prospects, informed by your content and performance data.

Purpose

Develop compelling email content that keeps audiences engaged, informed, and connected to your brand.

Required Integrations

Setup: Connect these data sources to enable full functionality. Claude will prompt you to connect any missing integrations when you use this skill.

Data Sources

# NEWSLETTER DATA SOURCES
# Configure the sources relevant to your newsletter creation

# Email Performance Data
- source: email_platform
  connector: "{{HUBSPOT | MAILCHIMP | KLAVIYO | CUSTOMER_IO | CONVERTKIT}}"
  data:
    - past_newsletter_performance
    - open_rates_by_subject
    - click_rates_by_content
    - best_send_times
    - subscriber_segments
    - unsubscribe_patterns

# Content Library (to curate from)
- source: content_library
  connector: "{{GOOGLE_DRIVE | SHAREPOINT | NOTION}}"
  paths:
    - "/Marketing/Blog Posts/"
    - "/Marketing/Case Studies/"
    - "/Marketing/Resources/"
    - "/Marketing/Webinars/"
- source: blog
  url: "{{YOUR_BLOG_URL}}"
  data:
    - recent_posts
    - popular_posts

# Product Updates
- source: product_updates
  connector: "{{GOOGLE_DRIVE | SHAREPOINT | NOTION | CONFLUENCE | PRODUCTBOARD}}"
  paths:
    - "/Product/Release Notes/"
    - "/Product/Feature Announcements/"
    - "/Product/Roadmap/"

# Company News & Events
- source: company_updates
  connector: "{{GOOGLE_DRIVE | SHAREPOINT | NOTION}}"
  paths:
    - "/Company/News/"
    - "/Marketing/Events/"
    - "/Company/Announcements/"

# Customer Stories
- source: customer_stories
  connector: "{{GOOGLE_DRIVE | SHAREPOINT | NOTION}}"
  paths:
    - "/Marketing/Customer Spotlights/"
    - "/Marketing/Case Studies/"
    - "/Marketing/Testimonials/"

# Brand Guidelines
- source: brand_docs
  connector: "{{GOOGLE_DRIVE | SHAREPOINT | NOTION}}"
  paths:
    - "/Marketing/Brand Guidelines/"
    - "/Marketing/Email Templates/"
    - "/Marketing/Voice and Tone/"

# Industry News (for curation)
- source: industry_feeds
  enabled: true
  sources:
    - rss_feeds
    - google_alerts
  topics:
    - "{{INDUSTRY_KEYWORD_1}}"
    - "{{INDUSTRY_KEYWORD_2}}"

Read the full file on GitHub · 606 lines

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.

2mo ago First seen · 606 lines · 24 tokens per session scan A b37f67223a41

Subscribe to this mod's changes

newsletter-writer is a skill published in the GitHub repository taizen-ai/taizen-claude-plugins (8 stars, last pushed 5mo ago), licensed MIT. It adds 24 tokens to every session and 3,526 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-31.

Marketing and SEO Writing and docs

newsletter-writer next to 6 skills from other repositories
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newsletter-writertaizen-ai/taizen-claude-plugins	Skill	8	5mo ago	MIT	A	24	Claude Code
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playwright-climicrosoft/playwright	Skill	99k	yesterday	Apache-2.0	A	19	Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	4d ago	MIT	A	200	Claude Code, Codex
systematic-debuggingobra/superpowers	Skill	313k	3d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	95	Claude Code
next-partial-prefetching-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	103	Claude Code