import type { Context } from "@earendil-works/chord";
import { type ConversationDocToken, type Extension, type Harness, type JsonObject, type Registry } from "@earendil-works/pi-durable";
import { type Config } from "./config.js";
import { McpRuntime, type ConnectFactory } from "./runtime.js";
import type { ElicitationUI } from "./elicitation.js";
export type ActivatedMcpState = {
    tools: Record<string, JsonObject>;
};
export declare const ActivatedMcpTools: ConversationDocToken<ActivatedMcpState>;
export interface DurableMcpOptions {
    registry: Registry;
    cwd?: string;
    agentDir?: string;
    /** Project configuration is ignored unless the host has obtained trust. */
    trustProject?: boolean;
    config?: Config;
    connect?: ConnectFactory;
    ui?: ElicitationUI;
    onWarning?(message: string): void;
}
export interface DurableMcpClient {
    extension: Extension;
    runtime: McpRuntime;
    restore(harness: Harness, context: Context): Promise<void>;
    close(): Promise<void>;
}
/** Native tools and activations are restored before the host resumes the scheduler. */
export declare function createMcpExtension(options: DurableMcpOptions): Promise<DurableMcpClient>;