/**
 * Process-wide registry mapping a session id to its active {@link AskAnswerSource}.
 *
 * Decouples the `ask` tool (which reads the source via `AgentSession`) from the
 * notifications extension (which registers one), without threading a new method
 * through the extension/runner/controller wiring. A session may have multiple
 * sources. A "protocol" source always takes precedence over an "interactive"
 * source regardless of registration order; within the same kind, the most
 * recently registered source wins. Registering returns a disposer.
 */
/** Error code a remote ask source uses to signal that its own timeout fired. */
export declare const GJC_ASK_TIMEOUT_CODE = "gjc.ask.timeout";
import type { WorkflowGateEmitter } from "../modes/shared/agent-wire/workflow-gate-broker";
import type { AskAnswerSource } from "./index";
export type AskAnswerSourceKind = "protocol" | "interactive";
/** Register `source` for `sessionId`. Returns a disposer that restores the prior source. */
export declare function registerAskAnswerSource(sessionId: string, source: AskAnswerSource, kind?: AskAnswerSourceKind): () => void;
/** The highest-priority answer source for `sessionId`, if one is registered. */
export declare function getAskAnswerSource(sessionId: string): AskAnswerSource | undefined;
/** Publish a session's current workflow-gate emitter after mode initialization. */
export declare function notifyWorkflowGateEmitterChanged(sessionId: string, emitter: WorkflowGateEmitter | undefined): void;
/** Observe workflow-gate emitter installation even when it occurs after session_start. */
export declare function registerWorkflowGateEmitterListener(sessionId: string, listener: (emitter: WorkflowGateEmitter | undefined) => void): () => void;