What problem does it solve? It turns vague or detailed travel ideas into executable, fact-checked Chinese travel guides delivered as real Feishu/Lark documents, eliminating manual itinerary research, route feasibility checking, and document formatting work. ## Core Features & Use Cases - End-to-end itinerary planning: Builds day-by-day routes with geographic clustering, transport timing, meal stops, booking windows, and budget tiers, validated against feasibility gates for pacing, opening hours, and transit connections. - Current-information verification: Checks visas, weather, opening hours, reservation windows, transport schedules, and dynamic prices, tagging facts as verified, reference, or estimated. - Feishu document delivery: Creates rich-text Feishu docs via lark-cli using a whitelisted XML component set (callout, grid, table, checkbox, bookmark), with scenario-specific structures for city first visits, food tours, family trips, road trips, outbound travel, layovers, and budget optimization. - Use Case: A user asks "端午去呼和浩特怎么玩" and receives a created Feishu document containing a 3-day route, lodging area trade-offs, food ordering cards, a budget matrix, booking entry links, and a pre-departure recheck checklist. ## Quick Start Ask the assistant to plan a trip, for example: plan a 3-day first-time trip to Nanjing for two adults on a moderate budget and create the Feishu travel document.