dsh-esc-enter

When the agent in DeepSeek Harness Web UI is working through the current turn, cancelling the task or queuing a follow-up instruction usually means hunting for a button and breaking your typing rhythm. dsh-esc-enter brings an opencode-style interaction model: Esc cancels instantly, and an Append / Stop pair appears right beside the composer as a visual fallback, keeping your hands on the keyboard and your eyes on the text.

Three capabilities matter. First, pressing Esc while the agent is running immediately invokes session.cancel(), preserving any queued work for later turns without data loss. Second, the composer dock slot renders two buttons: Append submits the current draft through inputActions.submit() on the busy-queue path so the in-flight turn stays undisturbed; Stop follows the same cancel path as Esc. Both buttons are visible only while the agent is active and vanish when idle, keeping the composer area clean. Third, the semantics of Enter during busy (queue vs. steer) are fully delegated to DSHs built-in Enter behavior while busy setting; the plugin does not re-implement that logic.

Best for keyboard-driven DSH Web users who want to append instructions or bail out quickly while the agent is running, without reaching for buttons. It is a pure client-side plugin mounted on the conversation.composer.dock slot with no host logic; after installing, simply hard-refresh the browser to bring it online.