dsh-esc-stop

In the DeepSeek Harness Web GUI, the only way to stop an in-progress generation has been to move the cursor to the stop button and click it. For keyboard-driven workflows, that extra mouse hop breaks focus and adds friction. dsh-esc-stop shrinks the action to a pure keystroke: press Esc twice within 400 ms in any open session and the current turn is cancelled immediately, exactly as if the built-in stop button had been clicked.

The plugin keeps its footprint minimal. It registers a single window keydown listener and, when the double-press pattern is matched, calls the same session.cancel RPC that the stop button uses. That means edge-case behaviour stays identical to the native control: pending inbox messages are preserved and resumed in FIFO order, and sub-agent busy-state semantics are untouched. Misfire guards are baked in as well—e.repeat is ignored, a single press or a hold will not trigger it, and two presses spaced more than 400 ms apart simply restart the timer. There is no extra UI, no configuration surface, and no host-side logic; drop the bundle into the web profile, restart dsh web, and it is ready.

If you routinely run long multi-turn conversations in dsh web and want a natural, one-handed way to call the shot—much like pressing Esc to leave a terminal—this plugin fills the gap at essentially zero cost. Keep in mind it is scoped to the web profile; TUI and headless modes already have their own stop keys and are outside its purview.