/**
 * Headless `ExtensionUIContext` for serve-mode sessions, extracted verbatim
 * from `agent-bridge.ts`.
 */
import type { ExtensionUIContext } from "../../sdk/coding-agent/index.js";
import type { ServerEvent } from "../wire.js";
/**
 * Create a minimal ExtensionUIContext that forwards `notify()` calls as
 * `agent_notification` wire events, and renders `confirm()` as a terminal-
 * native permission prompt on serve's stdout (the terminal `spectral serve`
 * runs in) so extensions like desktop-control can request real user approval
 * while the user chats via the web UI. A prompt also emits an
 * `agent_notification` ("Approval required in terminal: …") so web users know
 * to look at the terminal. Confirmations are serialized across sessions and
 * auto-deny on timeout (SPECTRAL_CONFIRM_TIMEOUT_MS, default 5 min) or when
 * stdin is not a TTY. All other interactive UI methods (select/input/custom/
 * editor) remain no-ops resolving `undefined`.
 */
export declare function createHeadlessUIContext(emit: (event: ServerEvent) => void): ExtensionUIContext;
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