Comments

The comment mark anchors a thread id to a text range — nothing else. Thread bodies, authors, and resolution state never live in the document:

interface CommentThread {
  id: string;
  status: "open" | "resolved";
  messages: CommentMessage[];
}
interface CommentMessage {
  id: string;
  author: string;
  body: string;
  createdAt: number;
}

Why a store, not a prop

Core never calls CommentThreadStore itself — @slash-editor/react's useComments composes it with the mark's own setComment/unsetComment commands, the same way useLinkEditor composes the link mark's own commands rather than owning link application itself. unsetComment removes only that threadId's mark instances from the selection: ProseMirror's built-in unsetMark would strip every distinct thread anchored there, since the mark type sets excludes: "" so overlapping threads can coexist.

const store = createYourCommentThreadStore();
const comments = useComments(editor, { store });

See Comment Panel for the rendered sidebar surface — selection anchoring, thread list, and reply composer.