Nuanced

Nuanced Canvas is a desktop app from Nuanced, Inc. that swaps the chat window in agentic coding for a document. It works as an AI spec editor first and a build tool second. You describe what you want built in your own words, and agents read that document against your codebase and leave comments in the margin, the way a teammate reviews a spec.

The pitch is straightforward: decide before the code gets written. That makes it an AI coding app built around spec-driven development, where the written plan is the interface and the agent is the thing that executes it. A long chat thread buries the reasoning that led to a decision, so three weeks later nobody remembers why the notification system works the way it does. A document keeps that reasoning in one place, scoped to one part of the software.

When you're satisfied with the plan, the agent builds your choice inside its own Git worktree. You get a diff to review, then a commit and a pull request. Nothing lands in your main branch until you approve it.

The limits matter as much as the idea. Nuanced Canvas runs on macOS with Apple silicon only, and Windows and Linux are still a waitlist. There's no public price list. The current build is version 0.0.40, so expect rough edges.

Getting Started

1. Download the Apple silicon build from nuanced.dev and open it. Updates install the next time you restart the app.
2. Point Nuanced at a project you already have in Git, or create a new one from the welcome screen.
3. Write a document describing the change you want. Keep it to one piece of work so the scope stays readable.
4. Read the agent comments in the margin and answer them in the text, then pick an approach if the app offers you options.
5. Review the diff in the isolated worktree, commit, and open the pull request. The second document usually goes faster than the first, because the agent already knows your conventions.