Letting an agent work on the canvas

A worker is an agent with its own small window on the Canvas. You give it a task; it opens whatever app it needs in the background, does the work there, and streams its screen back to the frame so you can watch without lending it your desktop.

Start one

on the canvas:
  add a worker frame
  tell it: "open the deck, fix the third slide’s chart,
            and tell me when it’s done"

Numa narrates as it goes — what it is clicking, what it is reading, where it paused. When it finishes it marks the frame done and lets you know. If it gets unsure, it stops and asks rather than guessing.