import type { useChat } from '../../messages/composables/chat.js';
type ChatModelPolicy = {
    resolve: (value: string | null) => string | null;
    ensureSelectedModel: (current: string | null, selected: string | null, persist: (value: string | null) => Promise<boolean>) => Promise<void>;
};
type ChatHarnessAdapter = {
    useChat: typeof useChat;
    useModelSelection: () => ChatModelPolicy;
    requiresSandboxWake: boolean;
};
export declare function provideChatHarnessAdapter(adapter: ChatHarnessAdapter): void;
export declare function useChatHarnessAdapter(): ChatHarnessAdapter | null;
export {};