Google Stitch 2.0 adds AI design canvas

Google is trying to turn Stitch from a prompt-to-mockup demo into a real workflow layer for design-to-code handoff, and that is the part worth paying attention to.

• –The infinite canvas and agent manager make Stitch feel closer to a true design workspace than a one-shot generator.
• –DESIGN.md is the strategic move here because it gives design rules a portable, agent-friendly format that can travel between tools.
• –Voice-driven iteration could make early product exploration much faster for founders, PMs, and designers working in rough ideation mode.
• –MCP, SDK, and export paths are the bridge to developers, which is where most AI design tools break down.
• –This is still an update, not a brand-new category, but it puts Google squarely in the AI UI builder race with a more integrated stack than many rivals.