The Berlin team behind the open source editor already inside LinkedIn, GitLab, and Substack shipped Tiptap AI Toolkit: a layer that lets AI agents edit rich documents as tracked changes you accept or reject, streaming in live, even after you close the tab. Bring your own models and agent loop, it handles the document side.
🔥 Our Take: Here's the tell: Tiptap built exactly this in 2023, right after OpenAI shipped the Assistants API, and shelved it. Their own words, the agent "did things to the document, not with you." The version that finally works is basically AI on a leash of tracked changes, every edit arrives as a suggestion you accept or reject, routed through the same collab engine as your teammates' cursors, so it can't trample a table while someone's typing in it. Notion and Google Docs have had this for a while, but only inside Notion and Google Docs. Everyone building anything else got a chat sidebar and a paste button. And rich text is a genuine swamp, tables, live cursors, three people in one paragraph, which is why nobody sane builds this layer themselves. Tiptap's been in that swamp for a decade. Let them.