Community Group Buy Price Comparator
Paste the following prompt into your AI chat to install this skill:
Please install @user_70c2f807/group-buy-comparator according to https://skillhub.cn/install/skillhub.md.
About this skill
Problem
Community group-buying offers for the same product are often scattered across platforms with different prices, package sizes, shipping fees, discounts, and coupons. Comparing sticker prices can mislead: 10 for 30 yuan and 12 for 28 yuan need unit-price and total-cost checks. This skill addresses the everyday question of which offer is actually cheaper, turning scattered quotes into a comparable cost basis.
How It Works and Limits
It works in three steps: confirm the product, platform quotes, sizes, shipping rules, and promotions; normalize units to per piece, per jin, or per ml; add hidden costs such as shipping or packaging to the landed price; then provide a recommendation, bundle suggestion, and caveats. Core capabilities include cross-platform comparison, coupon and discount conversion, bundle optimization, and cost comparison between group-buy vouchers and direct purchase.
Note that it does not fetch real-time platform prices, place orders, handle returns, process after-sales issues, or evaluate product quality. Users must supply current prices, and the final decision should follow the actual checkout price. Large price gaps should also be checked against reviews, freshness, and delivery time.
Use Cases
- Before buying groceries, enter egg prices and pack sizes from several platforms, then compare standard unit price and landed price.
- When stacking discounts, list candidate items and coupon thresholds, then calculate total price, savings, and the best bundle.
- Decide whether a group-buy voucher pays off by comparing voucher use with direct purchase across unit price, shipping, and final cost.
- Compare the same milk brand across different pack sizes by normalizing to per-jin or per-piece price to check whether the larger pack is cheaper.
Best For
- Household grocery shoppers who want to pick the lowest landed-price option among several community group-buy platforms.
- Room or family group-buy organizers who need to compare pack size, shipping, and discounts before placing an order.
- Price-conscious buyers who stock eggs, milk, or other standard items and want to check whether larger packs are cheaper.
- Coupon users who need to calculate actual cost and savings across different bundle and discount combinations.
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