RSS has an image problem. Ask most people what it is and you get a blank stare, or a vague memory of an orange icon their dad used to click. Ask a podcast app how it finds new episodes, or a tool like Zapier how it notices you published something, and the answer is the same thing under the hood: RSS. It never actually left. It just stopped being something people look at directly.
An RSS feed is a plain XML file listing your most recent posts: title, link, a short description, the date each one went up. No styling, no images rendered inline, nothing meant for a person sitting in a browser. It exists so software can check in on your site on its own, without a person doing it by hand every day.
Every collection on Cantrip can generate one, not just a blog. It's off by default. Open a collection's settings and there's a checkbox: "Generate RSS feed for this collection." Check it, save, and the feed is live at yoursite.com/feed/collection-slug. No plugin, no separate build step, nothing to install.
Here's exactly what lands in it once it's on: your 20 most recent posts, each with a title, a link, an author name, and a description. That description isn't the whole post. It's whatever's in your teaser field, or if you left that blank, the first 300 characters of the body itself, stripped of formatting and cut off mid-sentence if it has to be. That's on purpose, not a bug worth filing. An RSS feed is supposed to tell a reader something new exists, not replace the click to your actual page.
You also don't have to hand the URL to anyone. Cantrip drops an autodiscovery link in every page's head automatically, the same signal a browser extension or a tool like Feedly uses to notice a feed exists without you posting the raw link anywhere.
None of this needs code or a marketplace add-on, which is the whole reason it's a checkbox instead of something you'd pay extra for. If you don't use RSS readers yourself, fine, turn it on anyway. It costs you nothing, and it's how the tools that never sleep, like Zapier automations and news aggregators, actually find out you published something.