- blue.backyard.feed.comment record A comment on a post, reblog, or another comment. Equivalent to a Tumblr 'note' — a lightweight text response that does not appear in the commenter's own feed.
- blue.backyard.feed.like record A like on a Backyard post, reblog, or comment.
- blue.backyard.feed.post record An original post in a user's Backyard feed. Content is structured as an ordered array of blocks (text, images, embeds) to support inline media.
- blue.backyard.feed.reblog record A reblog of a post to the user's own feed, optionally with additional commentary and tags. Equivalent to a Tumblr reblog — the reblog appears in the reblogger's feed and carries the original post forward.