1688-logistics-scraper/SKILL.md

---
name: 1688-logistics-scraper
description: "Scrape 1688 product pages via Chrome, capture full-page screenshots and detail images for vision-based extraction of weight/size data. Use when the user provides a 1688 product URL and needs logistics specs."
---

# 1688 Logistics Scraper

Capture 1688 product pages and extract weight/size data via vision.

## Run

```bash
bun scripts/run.ts scrape <url> [--dry-run] [--port=9222]
```

## What It Does

1. Opens the 1688 product URL in the browser (default port 18800)
2. Scrolls through the entire page, capturing full-page screenshots
3. Downloads all product detail images
4. Saves to `/tmp/1688-logistics/<offer-id>/`

## After Running — MUST follow

Read ALL screenshots and detail images, then output the following JSON structure. This is the final output for API consumption.

```json
{
  "offerId": "966107271425",
  "url": "https://detail.1688.com/offer/966107271425.html",
  "title": "商品标题",
  "weight": {
    "value": 0.15,
    "unit": "kg",
    "source": "商品属性"
  },
  "grossWeight": {
    "value": 0.2,
    "unit": "kg",
    "source": "商品件重尺"
  },
  "netWeight": {
    "value": 0.15,
    "unit": "kg",
    "source": "商品属性"
  },
  "dimensions": {
    "length": 10,
    "width": 8,
    "height": 1.8,
    "unit": "cm",
    "source": "商品属性"
  },
  "volume": {
    "value": 0.000144,
    "unit": "m³",
    "source": "商品件重尺"
  },
  "packageWeight": {
    "value": 5.0,
    "unit": "kg",
    "source": "包装信息"
  },
  "packageDimensions": {
    "length": 40,
    "width": 30,
    "height": 20,
    "unit": "cm",
    "source": "包装信息"
  },
  "unitsPerPackage": 50,
  "variants": [
    {
      "name": "12支装",
      "weight": { "value": 0.12, "unit": "kg" },
      "dimensions": { "length": 9.5, "width": 6, "height": 2.2, "unit": "cm" }
    }
  ]
}
```

### Field rules

- **All weight values normalized to kg** (克÷1000, 斤×0.5)
- **All dimension values normalized to cm** (mm÷10)
- **`source`**: where on the page the data was found (商品属性 / 商品件重尺 / 包装信息 / 详情图片)
- **`variants`**: only include if weight/size differs per SKU. Omit if all variants share the same specs.
- **Omit fields that are `null`** — do not include fields where no data was found
- **Do not guess.** Only include values actually visible on the page or in images.

## Rules

1. If the browser is not running, report the error. Do not try to launch it.
2. No retries. If it fails, report as-is.
3. Read ALL screenshots — logistics data can appear anywhere on the page.
4. Read detail images too — weight/size is often baked into product photos.
5. Output ONLY the structured JSON above. No extra commentary.