What problem does it solve? It lets you practice stock trading with virtual capital (default 1,000,000) through the QuantMind simulation trading APIs, so you can place orders, track positions, and review trade statistics without risking real money. ## Core Features & Use Cases - Order Management: Place market or limit buy/sell orders, cancel pending orders, and query order and trade history through REST endpoints. - Account & Portfolio Tracking: Check cash, total assets, positions, daily equity snapshots, and trade statistics such as win rate and P&L. - Strategy-Driven Simulation: Create portfolios, bind strategies and models, run pre-trade readiness checks, and start or stop a live simulation loop. - Use Case: Ask the assistant to buy 100 shares of 600519.SH at market price; it checks your account cash, submits the order, confirms the fill, and reports your updated positions. ## Quick Start Ask the assistant to buy 100 shares of 600519.SH in the simulation account and show the updated positions and cash balance.