Add Email Newsletter to FreshRSS Skill

Add Email Newsletter to FreshRSS

Subscribe to an email newsletter by creating a Kill the Newsletter inbox, then adding the resulting Atom feed to FreshRSS with an appropriate category.

Procedure

1. Understand the newsletter

The user provides a newsletter name, signup page, or website. Use WebFetch on the provided URL to understand what the newsletter covers (topic, audience, content type). This informs the feed title.

2. Create a Kill the Newsletter inbox

FEED_SLUG=$(curl -s -X POST https://kill-the-newsletter.com/feeds \
  -H "CSRF-Protection: true" \
  -d "title=NEWSLETTER_TITLE" \
  -D - -o /dev/null | grep -oP 'location:.*feeds/\K[^\s]+')

This gives you:

Email: ${FEED_SLUG}@kill-the-newsletter.com
Atom feed: https://kill-the-newsletter.com/feeds/${FEED_SLUG}.xml

3. Add to FreshRSS

Invoke add-feed with the atom feed URL (https://kill-the-newsletter.com/feeds/${FEED_SLUG}.xml) to authenticate with FreshRSS, infer the best category, and add the feed.

4. Output results

Print clearly:

Email address: ${FEED_SLUG}@kill-the-newsletter.com
Atom feed URL: https://kill-the-newsletter.com/feeds/${FEED_SLUG}.xml
FreshRSS category: the assigned category
What to do next: Go to the newsletter's signup page, paste the email address above into the subscribe form, and submit. Once the newsletter sends its first email, it will appear as an entry in FreshRSS.
If a confirmation email is required, it will also show up in FreshRSS as a feed entry. Follow the confirmation link from there.

Notes

The Kill the Newsletter inbox must be created before subscribing. The email address is what the user gives to the newsletter signup form.
Do not share the KTN feed URL publicly (anyone with it can send spam to it).

Agent Skills: Add Email Newsletter to FreshRSS

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