newsletter-digest

Category: Content · Version: 1.0.0 · Author: OpenDirectory · Compatibility: All targets (claude, codex, opencode, gemini, anti-gravity, openclaw, hermes)

Aggregate RSS feeds, synthesize the week’s top stories with Gemini, and publish a newsletter digest to Ghost CMS. Supports three digest formats and outputs HTML, Markdown, and plain text for any platform.

Install

npx CLI (Recommended)
skills.sh
Claude Code Native
Claude Desktop
Manus AI

npx "@opendirectory.dev/skills" install newsletter-digest --target claude

npx skills add Varnan-Tech/opendirectory --skill newsletter-digest

/plugin marketplace add Varnan-Tech/opendirectory
/plugin install opendirectory-gtm-skills@opendirectory-marketplace

Copy https://github.com/Varnan-Tech/opendirectory/tree/main/skills/newsletter-digest into download-directory.github.io to download the ZIP.
Open Claude Desktop -> Customize -> Skills -> + -> Upload a skill and drop the folder containing SKILL.md.

What It Does

Reads your RSS/Atom feed list from feeds.json
Fetches all articles published in the last 7 days (configurable)
Deduplicates across feeds and sorts by date
Uses Gemini to synthesize a digest in your chosen format
Publishes to Ghost as a draft or live post
Outputs formatted Markdown for Substack, Notion, or any other platform

Digest Formats

Format	Use When	Target Length
Weekly Roundup	General digest covering top stories across all feeds	350-500 words
Topic Deep Dive	Focused issue on a single topic (AI, security, etc.)	450-650 words
Curated Picks	5 selected articles with editorial context	250-350 words

Requirements

Requirement	Purpose	Where to Get It
GEMINI_API_KEY	Digest synthesis	https://ai.google.dev
GHOST_URL + GHOST_ADMIN_KEY	Ghost publishing (optional)	Ghost Admin, Settings, Integrations
Node.js 20+	Running scripts	https://nodejs.org

Tavily is not required. The skill uses article excerpts from RSS feeds directly.

Setup

1. Set up dependencies

cd /path/to/newsletter-digest
npm install

2. Configure environment variables

cp .env.example .env
# Edit .env with your keys

3. Configure your feeds

Edit feeds.json with the RSS feeds you want to monitor:

[
  { "url": "https://hnrss.org/frontpage", "name": "Hacker News" },
  { "url": "https://feeds.feedburner.com/TheHackersNews", "name": "The Hacker News" },
  { "url": "https://changelog.com/feed", "name": "Changelog" }
]

The file ships with 5 example feeds. Replace them with your own.

4. Set up Ghost publishing (optional)

Go to Ghost Admin, Settings, Integrations
Click “Add custom integration”
Name it “newsletter-digest”
Copy the Admin API Key (format: key_id:secret)
Set GHOST_ADMIN_KEY=key_id:secret in .env
Set GHOST_URL=https://your-ghost-site.com in .env

How to Use

Generate a weekly digest:

"Generate a weekly digest from my RSS feeds"
"Create this week's newsletter"
"Summarize my feeds from the last 7 days"

Choose a specific format:

"Create a topic deep dive about AI agents from this week's news"
"Generate a curated picks digest for this week"
"Write a weekly roundup newsletter"

Extend the date window:

"Generate a digest from the last 14 days"
"Not many articles this week, extend the window to 2 weeks"

Publish to Ghost:

"Generate this week's digest and publish it to Ghost as a draft"
"Create the newsletter and publish it to Ghost"

Output for Substack:

"Generate a newsletter digest for Substack"
"Create the digest and give me the Markdown version"

Output

Output	Description
HTML	Ready to paste into any CMS
Markdown	For Substack, Notion, Hashnode
Plain text	For email clients
Ghost draft	Published automatically if configured

Substack Note

Substack has no public API. The skill outputs a Markdown version of the digest for you to paste directly into the Substack editor.

Project Structure

newsletter-digest/
├── SKILL.md
├── README.md
├── .env.example
├── package.json
├── feeds.json            (your RSS feed list, edit this)
├── evals/
│   └── evals.json
├── references/
│   ├── digest-format.md  (format rules, length targets, attribution)
│   └── output-template.md (HTML templates for all 3 formats)
└── scripts/
    ├── fetch-feeds.js    (RSS fetching, dedup, date filtering)
    └── ghost-publish.js  (Ghost Admin API posting)

License

MIT

Catalog

Visual & Media

Content

Launch

GTM Intelligence

Outreach

Research

Developer Tools

Other

Install

What It Does

Digest Formats

Requirements

Setup

1. Set up dependencies

2. Configure environment variables

3. Configure your feeds

4. Set up Ghost publishing (optional)

How to Use

Output

Substack Note

Project Structure

License

​Install

​What It Does

​Digest Formats

​Requirements

​Setup

​1. Set up dependencies

​2. Configure environment variables

​3. Configure your feeds

​4. Set up Ghost publishing (optional)

​How to Use

​Output

​Substack Note

​Project Structure

​License

Install

What It Does

Digest Formats

Requirements

Setup

1. Set up dependencies

2. Configure environment variables

3. Configure your feeds

4. Set up Ghost publishing (optional)

How to Use

Output

Substack Note

Project Structure

License