name: substack
description: Subscribe to newsletters and publish content on Substack's newsletter platform.
category: productivity

Substack Skill

Subscribe to newsletters and publish content on Substack's newsletter platform.

Quick Install

curl -sSL https://canifi.com/skills/substack/install.sh | bash

Or manually:

cp -r skills/substack ~/.canifi/skills/

Setup

Configure via canifi-env:

# First, ensure canifi-env is installed:
# curl -sSL https://canifi.com/install.sh | bash

canifi-env set SUBSTACK_EMAIL "your_email"
canifi-env set SUBSTACK_PASSWORD "your_password"
canifi-env set SUBSTACK_PUBLICATION_URL "your_publication_url"

Privacy & Authentication

Your credentials, your choice. Canifi LifeOS respects your privacy.

Option 1: Manual Browser Login (Recommended)

If you prefer not to share credentials with Claude Code:
1. Complete the Browser Automation Setup using CDP mode
2. Login to the service manually in the Playwright-controlled Chrome window
3. Claude will use your authenticated session without ever seeing your password

Option 2: Environment Variables

If you're comfortable sharing credentials, you can store them locally:

canifi-env set SERVICE_EMAIL "your-email"
canifi-env set SERVICE_PASSWORD "your-password"

Note: Credentials stored in canifi-env are only accessible locally on your machine and are never transmitted.

Capabilities

1. Newsletter Discovery: Discover and subscribe to newsletters across various topics
2. Read & Engage: Read posts, comment, and engage with newsletter content
3. Publish Content: Create and publish newsletter posts with rich media
4. Subscriber Management: Manage subscriber list and analyze audience growth
5. Monetization: Set up paid subscriptions and manage revenue

Usage Examples

Subscribe to Newsletter

User: "Subscribe me to the Stratechery newsletter on Substack"
Assistant: Subscribes to the newsletter using your email

Get Latest Posts

User: "Show me the latest posts from my Substack subscriptions"
Assistant: Returns recent posts from subscribed newsletters

Publish Post

User: "Publish my weekly newsletter about tech trends"
Assistant: Creates and publishes post to your Substack newsletter

Check Stats

User: "How many subscribers do I have on Substack?"
Assistant: Returns subscriber count and growth metrics

Authentication Flow

1. Substack uses email/password authentication
2. No official public API available
3. Use browser automation for full functionality
4. Store credentials securely for session management

Error Handling

Notes

• No official public API; uses browser automation
• Free tier allows unlimited free subscribers
• Paid subscriptions take 10% platform fee
• Custom domains available for publications
• Email delivery included in platform
• Podcast hosting available for audio content