What problem does it solve? Choosing what to sell is the hardest first decision for e-commerce sellers. This Skill removes guesswork by systematically evaluating candidate product categories against market demand, competition, profit margin, seasonality, and repurchase rate, so sellers can pick categories matched to their budget, platform, and supply advantages. ## Core Features & Use Cases - Five-Dimension Scoring: Rates each candidate category 1-10 on market demand, competition, profit margin, seasonality, and repurchase rate, producing a weighted recommendation index. - Concrete Niche Recommendations: Outputs 3-5 candidate categories with specific sub-niche entry points (e.g., "pet supplies" narrowed to "smart cat water fountains"), plus opportunity gaps and risk warnings. - Prioritized Action Plan: Ranks categories by fit with the seller's budget, target platform (Douyin, Taobao, Pinduoduo, Amazon, etc.), and supply-chain advantages, then suggests sourcing channels and first-batch inventory levels. - Use Case: A new seller with a 50,000 RMB budget and access to a factory in an industrial cluster wants to sell on Douyin. The Skill collects these inputs, scores candidate categories, and returns a ranked shortlist with entry advice. ## Quick Start Ask the assistant to recommend e-commerce product categories for a 100,000 RMB budget targeting Taobao with no existing supply-chain advantage.