{"tools":[{"name":"get_market_meta","description":"获取 Amazon 市场数据支持的站点、产品线和月份范围。","parameters":{"type":"object","properties":{},"required":[]}},{"name":"get_market_overview","description":"查询市场总览，包括销售额、销量、品牌数、均价、评分等。","parameters":{"type":"object","properties":{"marketplace":{"type":"string","description":"Amazon 站点，例如 US、DE、UK、CA、FR、IT、ES"},"product_line":{"type":"string","description":"产品线，例如 dash_cam、ipc、video_doorbell"}},"required":[]}},{"name":"get_market_trend","description":"查询月度销售额、销量和品牌数趋势。","parameters":{"type":"object","properties":{"marketplace":{"type":"string"},"product_line":{"type":"string"}},"required":[]}},{"name":"get_price_band","description":"查询价格带表现，包括销售额、销量、均价、利润率、评分等。","parameters":{"type":"object","properties":{"marketplace":{"type":"string"},"product_line":{"type":"string"}},"required":[]}},{"name":"get_concentration_summary","description":"查询品牌集中度 CR3、CR5、CR10。","parameters":{"type":"object","properties":{"marketplace":{"type":"string"},"product_line":{"type":"string"}},"required":[]}},{"name":"get_brand_ranking","description":"查询匿名品牌月度销售额和销量排名。","parameters":{"type":"object","properties":{"marketplace":{"type":"string"},"product_line":{"type":"string"},"stat_month":{"type":"string","description":"统计月份，例如 202605"},"limit":{"type":"number","description":"返回数量，默认 20，最大 100"}},"required":[]}}],"note":"MCP-style tool list endpoint for demo. Tools are also compatible with Function Calling style schema."}