Agent Replay

A named section. The step slider is a native range input whose value text names the step ("Step 3 of 12: Sorted deals by amount"), so arrow keys, Home and End move through the run and say where they land. The controls are labelled buttons in a named group; Play is a toggle button and stops at the last step rather than looping. A polite status region, present from first paint, announces the step you move to — and stays quiet during playback, which would otherwise talk over itself. The step list marks the current step with aria-current="step". Status, source and corrections are words, and the arguments and what the agent was told are focusable, named regions because they scroll.