GitHub's Copilot app reframes coding as managing many concurrent agent sessions

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GitHub published a getting-started guide for the Copilot app, a standalone workspace rather than an editor extension: you pick a GitHub or local repository as a project, then run multiple agent sessions against it simultaneously while keeping separate Quick Chat threads open. Canvases are interactive workspaces created with /create-canvas that preview a running application inside the app, with a 'Pick & Polish' mode for pointing at UI elements and requesting adjustments. Agent Merge extends the loop into pull requests, watching reviews and CI to address feedback, fix failures, and resolve merge conflicts.