Turn on comment mode with the speech-bubble button by the theme toggle, then
select text or hover a paragraph to comment. Each thread is a file in a
`.devpage/` folder git ignores, so an agent can read it and resolve it by
deleting the file. Serve a public site with `--no-comments` to turn them off.
- - - -
Teaches it: [Comments](../boxes/viewer/comments/README.md).