import { z } from 'zod';
import { McpToolResultInterface } from '../../../interfaces/mcp.tool.result.interface';
import { McpTool } from '../../../tools/mcp.tool';
type GroupRoleUpdateInput = {
    id: number;
    group_id?: number;
    role_id?: number;
    attributes?: Record<string, unknown>;
};
export declare class GroupRoleUpdateTool extends McpTool<GroupRoleUpdateInput> {
    readonly name = "group_role_update";
    readonly title = "Update group-role grant (admin)";
    readonly description = "Update fields of a group-role grant record directly in the database (admin/development only). Returns the updated row.";
    readonly inputSchema: {
        id: z.ZodNumber;
        group_id: z.ZodOptional<z.ZodNumber>;
        role_id: z.ZodOptional<z.ZodNumber>;
        attributes: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    };
    execute(args: GroupRoleUpdateInput): Promise<McpToolResultInterface>;
}
export {};