问一下：具体业务问法被助手误读怎么办？ AI

import { json } from "@sveltejs/kit";
import type { RequestHandler } from "./$types";

export const GET: RequestHandler = async ({ url, locals }) => {
  const brandId = url.searchParams.get("brandId");
  if (!brandId) return json({ error: "brandId required" }, { status: 400 });
  const rows = await locals.db.query("select day,mentions from agg where brand_id=$1", [brandId]);
  return json({ items: rows });
};