import type { RemoteToolSource, ToolExecutionContext } from "./types.js";
/** Maximum successful tools/list response body. */
export declare const MAX_REMOTE_MCP_TOOL_LIST_RESPONSE_BYTES: number;
/** Maximum successful tools/call response body. */
export declare const MAX_REMOTE_MCP_CALL_RESPONSE_BYTES: number;
/** Defensive cap on tools/list pagination to avoid unbounded cursor loops. */
export declare const MAX_REMOTE_MCP_TOOL_LIST_PAGES = 50;
/** Maximum number of remote definitions admitted atomically. */
export declare const MAX_REMOTE_MCP_TOOL_DEFINITIONS = 1000;
type ResolvableValue<T> = T | ((context?: ToolExecutionContext) => T | Promise<T>);
/** Configuration used by remote MCP tool source. */
export interface RemoteMCPToolSourceConfig {
    id?: string;
    endpoint: ResolvableValue<string>;
    headers?: ResolvableValue<HeadersInit | undefined>;
    listMethod?: string;
    callMethod?: string;
}
/** Create a remote MCP source with the framework's guarded outbound transport. */
export declare function createRemoteMCPToolSource(config: RemoteMCPToolSourceConfig): RemoteToolSource;
/** Deployment-owned transport policy for trusted MCP endpoint roots. */
export interface RemoteMCPToolSourceTransportOptions {
    /** Complete endpoint URLs allowed to use {@link requestFetch}. */
    trustedEndpoints: readonly string[];
    /** Host transport captured by the trusted deployment at startup. */
    requestFetch: typeof fetch;
}
/**
 * Create a remote MCP source factory with narrowly scoped host transport.
 *
 * Exact trusted endpoints and their project-scoped MCP routes use the supplied
 * transport. All other resolved endpoints retain the guarded outbound path.
 */
export declare function createRemoteMCPToolSourceFactoryWithTransport(options: RemoteMCPToolSourceTransportOptions): (config: RemoteMCPToolSourceConfig) => RemoteToolSource;
export {};
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