GitHub Copilot app for Beginners: How to build custom workflows with canvases

GitHub Copilot app's canvases are customizable, bidirectional interfaces you create by running the /create-canvas skill and describing the workflow in plain English. The agent builds the UI in the right-side panel, and both you and the agent can update its shared state at the same time. Canvases are saved as extensions for reuse or team sharing, and ready-made ones are available via Awesome Copilot.