Drag until it breaks

No presets, no numeric input: grab the edge of the live page and pull. The responsive workbench re-renders at every pixel of the drag and flags each element as it breaks — and when you stop, "Send to agent" hands the exact width and the measured overflow over in one click.

Silent by design — 0:29. Every beat is legible with the sound off.

What happens

The drag (0:04). One continuous pull on the frame's edge handle, 1440px down to 320px. The overlay recomputes live — watch the overflow flags bloom as the dashboard crosses each breakpoint.

The measurement (0:15). The page needs 958px inside a 320px frame. Not "looks cramped" — a number, measured from the live DOM.

The handoff (0:19). Send to agent ships the break with its context. The agent's reply names the causes: fixed three-column grids, a fixed sidebar, a min-width: 640px table.

For the fix half of this loop, see Shrink the page. Watch it break. — same workbench, driven to a verified fix.

How it's made

Recorded by the scripted demo engine against the real stack; the drag is real mouse input on the actual drag handle. make demo NAME=drag-resize re-records it.