import { z } from 'zod';
/** Permissive output schema for tools that return arbitrary JSON objects. */
export declare const jsonResult: z.ZodObject<{}, "passthrough", z.ZodTypeAny, z.objectOutputType<{}, z.ZodTypeAny, "passthrough">, z.objectInputType<{}, z.ZodTypeAny, "passthrough">>;
export type JsonToolResult = {
    content: Array<{
        type: 'text';
        text: string;
    }>;
    structuredContent: Record<string, unknown>;
};
/** Wrap an arbitrary value as an MCP tool result with both text and structured content. */
export declare function jsonContent(value: unknown): JsonToolResult;
/** Wrap a human-readable message as an MCP tool result. */
export declare function textContent(message: string, structuredContent?: Record<string, unknown>): {
    content: {
        type: "text";
        text: string;
    }[];
    structuredContent: Record<string, unknown>;
};
export declare function hasContentArray(value: unknown): value is {
    content: Array<Record<string, unknown>>;
};
export declare function isErrorToolResult(value: unknown): boolean;
/** Standard MCP error result describing an invalid/expired agent token. */
export declare function invalidAgentTokenToolResult(): JsonToolResult & {
    isError: true;
};
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