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Cowart: an infinite canvas for designing with your coding agent
Cowart bolts a visual whiteboard onto the Codex coding agent, so you can sketch, drop in screenshots, and have the agent generate or fix images right on the canvas. It's local, your drawings and assets live inside your own project, and it racked up over 600 stars in days.
Cowart is a local infinite-canvas plugin for the Codex coding agent, built on the tldraw drawing library. You install it through Codex's plugin marketplace, and it gives you a web-based whiteboard right next to your code where you can sketch, write notes, and drop in screenshots. The clever part is the loop with the AI: you place an empty frame and the agent fills it with a generated image, or you scribble annotations over a screenshot and the agent produces a cleaned-up, revised version. Pages and assets are saved inside your project's own canvas folder, so nothing is uploaded anywhere. It jumped to over 600 stars within days of launch.
Why a vibe-coder should care
If you build with an AI agent, you know how clumsy it is to describe a layout or an image purely in words. Cowart turns that into pointing and drawing: gesture at the thing, annotate it, and let the agent generate or fix it visually. For anyone designing screens, mockups, or graphics alongside their code, it's a much more natural way to work — and since it all stays on your machine, your work-in-progress never leaves your project.
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