Margin Buffer Monitor Agent

A leveraged account can go from comfortable to margin call in a single bad hour, and the broker's rules for each position differ and change. This agent reads the account's positions, the broker's margin requirement for each and the current excess liquidity. It stress tests the account against price drops, such as a 5% and 10% market fall, a volatility jump and a gap in the largest position, and calculates the buffer left after each. When the buffer in a scenario falls below the trader's set level, it flags it and proposes cuts, such as trimming the largest position or closing a hedge leg that costs margin. It tests the proposal again and checks the account would hold in the worst scenario. The trader approves any change. Edge case: the broker raises requirements on one stock overnight, and the agent picks it up in the next read.