import { type Ref } from 'vue';
/**
 * Resolve the executable agent without holding the page on the network round trip.
 *
 * The UI mounts right away with the harness last confirmed for this agent in this
 * browser, or Claude when there is none, so the Claude wake starts with the page
 * and the user can type. `confirmed` only turns true once the server answered for
 * the current agent and conversation; sending must wait for it, because sending
 * picks the stream protocol and a remembered harness can be stale. A failed
 * lookup never keeps a guess: it clears the selection and reports the error.
 */
export declare function useAgentHarness(input: {
    workspaceId: Ref<string>;
    agentId: Ref<string | null>;
    branch: Ref<string | null>;
    conversationId?: Ref<string | null>;
    conversationScope?: Ref<string | null>;
    onConversationCleared?: () => void;
}): {
    harness: any;
    loading: Ref<boolean, boolean>;
    confirmed: Ref<boolean, boolean>;
    error: Ref<string | null, string | null>;
    retry: () => void;
};