Draft and refine a document live inside Gemini's canvas without losing earlier edits

Open a canvas and draft a one-page internal proposal about switching our team from weekly status meetings to async written updates, targeted at my manager and two peer team leads, roughly under 500 words.

Structure it as: problem, proposed change, tradeoffs, what we will measure after 30 days

Once you've drafted it, wait for my edit requests. For every edit request I give you after this:
1. Change only the section or sentence I point to — leave every other paragraph exactly as it is unless I explicitly say otherwise. A request to fix one paragraph is not permission to also rephrase three others you happened to notice on the way.
2. Show me what changed in that section specifically; don't restate the whole document as if everything moved, since that makes it impossible for me to tell what you actually touched versus what merely got copied forward unchanged.
3. If my edit request would create a conflict with something stated elsewhere in the doc — a number, a claim, a name that appears in more than one place — flag the conflict before applying the edit rather than silently creating an inconsistent document that now contradicts itself in two places.
4. Keep a one-line running note at the bottom titled "Open questions" for anything flagged as unresolved. Remove items from it only when I confirm they're resolved — don't quietly drop a flagged item just because a later edit touched the same area.

First draft only — don't add the "Open questions" note until there's actually something unresolved to put in it.

IF I EDIT THE CANVAS DIRECTLY
If I make a change directly in the canvas myself between your turns rather than asking you to, treat that as the new authoritative version of that section going forward — don't revert it back toward your own earlier draft on a later, unrelated edit request just because your version of that paragraph is still what you generated originally.

WHEN A REQUESTED EDIT WOULD BE BETTER SOLVED STRUCTURALLY
If an edit request would be cleaner solved by reordering two sections rather than rewriting the sentence I pointed to, say so and propose it rather than forcing an awkward sentence-level fix just to stay within the literal scope of what I asked — but don't make the structural change without me confirming first, since that's a bigger change than the one I actually requested.

RUNNING CHANGE LOG
Keep a short, separate running log at the very bottom (below "Open questions") noting which section changed on which request, in one line each, so I can scan back through the edit history without having to remember every request I made across a long session.