import type { JsonObject, JsonValue, ToolDef } from "@fabric-harness/sdk";
import type { DatabricksRawProtocolClient } from "./raw-protocol-client.js";
export type DatabricksManagedAgentKind = "supervisor-agent" | "knowledge-assistant" | "agent-endpoint";
export interface DatabricksResponsesContent {
    type?: string;
    text?: string;
}
export interface DatabricksResponsesOutputItem {
    id?: string;
    type?: string;
    role?: string;
    content?: DatabricksResponsesContent[];
}
export interface DatabricksAgentEndpointResponse {
    id?: string;
    status?: string;
    output?: DatabricksResponsesOutputItem[];
    error?: JsonObject | null;
    metadata?: JsonObject;
}
export interface DatabricksAgentEndpointInvocation {
    input: string | JsonValue[];
    previousResponseId?: string;
    customInputs?: JsonObject;
    metadata?: JsonObject;
    signal?: AbortSignal;
}
/**
 * Bounded OpenResponses invocation for an existing Databricks agent endpoint. The endpoint remains
 * owned and permissioned by Databricks; Harness only treats it as a governed read/subagent tool.
 */
export declare class DatabricksAgentEndpointClient {
    private readonly client;
    constructor(client: DatabricksRawProtocolClient);
    invoke(endpointName: string, invocation: DatabricksAgentEndpointInvocation): Promise<DatabricksAgentEndpointResponse>;
}
export interface DatabricksManagedAgentToolOptions {
    endpointName: string;
    kind: DatabricksManagedAgentKind;
    /** Stable Databricks resource id retained in governance metadata. */
    resourceId?: string;
    name?: string;
    description?: string;
    /** Maximum serialized terminal response admitted into model context. Default 1 MiB. */
    maxOutputBytes?: number;
}
export interface DatabricksManagedAgentToolResult {
    id?: string;
    status?: string;
    text: string;
    output: DatabricksResponsesOutputItem[];
}
/** Project an existing Supervisor Agent, Knowledge Assistant, or Responses-compatible endpoint. */
export declare function databricksManagedAgentTool(client: DatabricksAgentEndpointClient, options: DatabricksManagedAgentToolOptions): ToolDef<{
    question: string;
    previousResponseId?: string;
}, DatabricksManagedAgentToolResult>;
export declare function databricksResponsesText(response: DatabricksAgentEndpointResponse): string;
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