Show HN: What should the GUI for AI agents look like?

MarbleOS is a new workspace interface for AI agents that debuted on Hacker News. Its creators, Akilan and Miguel, argue that chat-based AI tools still require users to know what's possible and how to ask—functioning more like a command-line interface than the graphical revolution that transformed personal computers. Marble's approach: tasks appear as parallel cards, tools show their expected uses before running, and results emerge as usable files—spreadsheets, PDFs, decks—rather than remaining buried in chat transcripts. The underlying premise is to make your work's entire structure visible at once, so you're not holding everything mentally. Per the creators, this visibility leads users to delegate work they wouldn't have thought to automate through a chat interface alone.

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