export interface McpToolDetails {
    tool: string;
    truncated: boolean;
    truncation?: {
        truncatedBy: "lines" | "bytes" | null;
        totalLines: number;
        totalBytes: number;
        outputLines: number;
        outputBytes: number;
        maxLines: number;
        maxBytes: number;
    };
    tempFile?: string;
    warning?: string;
}
export declare function toJsonString(value: unknown): string;
export declare function writeTempFile(toolName: string, content: string): string;
export declare function formatToolOutput(toolName: string, result: unknown, limits: {
    maxBytes?: number;
    maxLines?: number;
}): {
    text: string;
    details: McpToolDetails;
};