Infrastructure auditor
Checks every data source, process and module every five minutes. Automatic repairs are limited to a fixed list; anything else is escalated to you.
Independent risk oversight
A separate service checks every minute that each position on the exchange matches the records, that its stop is in place and how far it is from liquidation. A missing stop is restored; if that fails, the position is closed.
Decision records
Every trade is stored with the measurements taken at the moment of entry, and every rejected candidate with the exact reason it was rejected.
Weekly audit
Every Sunday a weekly audit compares live and paper results, data sources and risk events, and reports what went well, what went badly and what needs attention.