Napkin
Sketch it out with your team, and an AI that sees the picture.
Napkin is the suite's shared sketchbook: a full-bleed canvas for thinking with a pen. Draw with real ink, paste screenshots, drop in the actual flows, pages, and decisions you're talking about, and wire them together with connectors that follow as things move. Share a link and anyone can draw with you live, no account needed. zv1 can look at a sketch, so the whiteboard is visible to the AI working alongside you.
The pieces Napkin gives you.

Pressure-aware freehand ink that feels like drawing with a real pen

Realtime collaboration with live cursors
share a link, anonymous guests draw instantly

Paste screenshots and images; move, resize, rotate, annotate

Reference cards for real workspace entities
flows, pages, evals, and decisions, with connectors that re-route as you rearrange

zv1 sees the sketch
ask it about the diagram you just drew

Export any sketch as PNG
the whole board, the current view, or a selection
Blank page to shared picture.
Napkin has one loop: draw, share, wire in the real things, ask. It's the same loop whether you're alone with an idea or in a room full of people and one AI.
Open a board
Full-bleed, no ceremony. A sketch starts blank and immediate, like a napkin.
Think with the pen
Pressure-aware ink, shapes, arrows, text, sticky notes, pasted screenshots. The tools stay out of the way; the drawing history stays complete.
Share the link
Anyone with the link draws with you live: cursors, names, no account required. Members get the full board; guests get exactly what you granted.
Wire in the real things
Drop the actual flow, page, eval, or decision onto the canvas as a live card. Connect them with arrows that re-route themselves as you rearrange, so the diagram stays accurate.
Ask your AI about it
zv1 can look at the sketch: the layout, the labels, the arrows between real entities. Draw the architecture, then ask what breaks if a piece changes.
Got something to sketch out?
The fastest way to explain a system is still a drawing. Napkin makes the drawing shared, live, wired to the real thing, and visible to the AI working next to you. Part of every ZeroWidth workspace.