import { STANDALONE_PROTOCOL_VERSION } from "./standalone-contract.js";
import type { StandaloneWorkflowRuntime } from "./standalone-runtime.js";
export interface StandaloneWorkflowServerOptions {
    host?: string;
    port?: number;
    authToken?: string;
    /** Override descriptor location (primarily for embedders/tests). */
    descriptorPath?: string;
    /** Set false when discovery is owned by a parent process. Default true. */
    writeDescriptor?: boolean;
    title?: string;
}
export interface RuntimeDescriptor {
    protocolVersion: typeof STANDALONE_PROTOCOL_VERSION;
    pid: number;
    cwd: string;
    host: string;
    port: number;
    authToken: string;
    startedAt: string;
    descriptorPath: string;
}
export interface ListeningStandaloneWorkflowServer {
    host: string;
    port: number;
    authToken: string;
    url: string;
    descriptor: RuntimeDescriptor;
}
/**
 * Local HTTP/SSE control plane for the standalone runtime.
 *
 * The server defaults to loopback and uses a random bearer token. The token is
 * also embedded into the local dashboard and written to a mode-0600 runtime
 * descriptor so other local `dynworkflow` processes can discover the owner.
 */
export declare class StandaloneWorkflowServer {
    readonly runtime: StandaloneWorkflowRuntime;
    readonly authToken: string;
    private readonly options;
    private readonly server;
    private readonly sseClients;
    private listening?;
    private heartbeat?;
    private closed;
    constructor(runtime: StandaloneWorkflowRuntime, options?: StandaloneWorkflowServerOptions);
    listen(): Promise<ListeningStandaloneWorkflowServer>;
    address(): ListeningStandaloneWorkflowServer | undefined;
    close(options?: {
        closeRuntime?: boolean;
    }): Promise<void>;
    private readonly onRuntimeEvent;
    private handle;
    private openEventStream;
    private authorized;
    private originAllowed;
    private sendJson;
}
export declare function standaloneRuntimeDescriptorPath(cwd: string): string;
export declare function readRuntimeDescriptor(cwd: string, descriptorPath?: string): RuntimeDescriptor | null;