Replaytape: See What Your Rule Would Have Caught

Field notes

Replaytape converts a plain-language market condition into a historical-bar replay, reporting signals, costs, sample size, and costed P&L before the rule can watch a market account. Its accounting model keeps policy, book, and cash claim separate: editing target weights changes where the next dollar goes, while only a broker fill changes what the plan owns. The page also distinguishes paper from live accounts and says optional auto-trading remains planned rather than enabled.