Portfolio Drift Rebalancer Table of Contents - Overview - Input contract - Workflow - Tax-efficient rebalancing logic - Output contract - Guardrails Overview The household typically holds investments across three account types: a taxable brokerage (e.g., Fidelity), a 401k, and an HSA's invested portion. A target allocation is defined at the household level (e.g., 55/20/20/5 US/intl/bonds/cash). This skill rolls up current allocation across all three accounts, computes the drift from target, and proposes specific buys and sells to restore target — preferring trades inside tax-advantaged accoun…