Short answer: the suites added AI to editors built for a world where only people typed. It shows.
A month from now, someone points at a paragraph in your document and asks: did you write this?
Google Docs can't tell them. Gemini's edits are labeled while they're suggestions. Accept one and the label evaporates. The text is just text, origin unknown, forever.
Word can't either. Track Changes shows AI edits during the session. The trail doesn't survive sharing, and it was built to be resolved and cleared, not kept.
Notion doesn't try. An AI-written block and a human-written block are identical. Notion's agents can now edit across your whole workspace, which makes the silence louder.
All three assume the AI works inside their editor, through their integration, on their servers. But the agents you actually use work on files. Claude Code can't propose an edit to a Google Doc. It can edit a markdown file in two seconds. The suites aren't where AI collaboration is happening. Your filesystem is.
Stet is a document editor built for that world. Your documents are plain markdown files you own, on your machine. Any agent can work on them. Every change, from any agent or any person, arrives as a proposal. You review it, accept it or reject it, and the file never contains a word you didn't sign off on. The history of who wrote what, and what you approved, stays with the document permanently.
So when someone asks "did you write this?", you have an answer with a record behind it.
The suites are free, installed, and shared with everyone you work with. Real-time multiplayer editing and commenting are theirs, not ours. Stet is for the documents where authorship has stakes. Keep the suites for the rest.
Part of Where Stet fits, the map of the markdown neighborhood.