<objective Build and manage Interactive Brokers (IBKR) integrations for portfolio queries, trade execution, and multi-account management across Roth IRA, personal brokerage, and business accounts using TWS API (ib async) or Client Portal REST API. </objective <quick start 1. Install: 2. Start IB Gateway on port 7497 (paper) or 7496 (live) 3. Connect: 4. Query: / </quick start <success criteria - API connection established and authenticated - Portfolio positions and balances retrieved across all linked accounts - IRA restrictions enforced on write operations - Credentials stored securely (neve…