AI can produce a NinjaTrader strategy that compiles, plots signals, and generates an attractive backtest. None of those outcomes proves that the strategy behaves correctly. A useful audit starts with the intended trading rules and compares them with what the NinjaScript actually does in historical, playback, simulation, and real-time states.
Start with behavior, not code style
Write down entries, exits, filters, position sizing, session rules, calculation timing, and failure behavior. If the intended behavior is ambiguous, an AI tool will fill the gaps with assumptions. The reviewer needs examples of correct and incorrect trades, not just a prompt transcript.
Review NinjaTrader state and timing
Check initialization, data loading, historical processing, transition to real time, termination, additional data series, session templates, and whether calculations run on bar close or intrabar. Confirm that values used at decision time would actually have been available then.
Audit order handling
Review entries, exits, stops, targets, partial fills, rejected orders, cancelled orders, disconnects, restarts, and strategy/account synchronization. A strategy should define what happens after an exception instead of assuming every order succeeds.
Challenge the backtest
Inspect fill assumptions, slippage, commissions, historical bid/ask availability, bar construction, optimization choices, look-ahead bias, and differences between historical and live event ordering. Favor reproducible tests over one optimized equity curve.
Check maintainability and evidence
Look for duplicated logic, unused parameters, hidden state, missing logs, weak naming, and branches that cannot be tested. Require logs and examples that let another reviewer reconstruct why a trade occurred.
The AI-Built Trading System Audit provides a fixed-price senior review of AI-assisted trading code and its operating assumptions. For broader planning, compare all trading software consulting options.
Risk note
This checklist concerns software behavior and technical risk. It is not investment advice, a performance certification, or a guarantee that a strategy is safe or profitable. The owner remains responsible for testing, permissions, account controls, and deployment.