Describe it. Watch it run.
Type a strategy the way you'd text it to a friend. Priors compiles it into explicit rules, tells you what it couldn't read, then runs it forward over 90 daily sessions — on real market data where we can price the symbol — and publishes every prior it would have written.
Nothing compiled yet. Write a strategy, or pick one of the examples.
Priors it published
Every entry and exit, newest first — each written from the rule that fired, before the fill.
Position-sized returns on simulated history. A 3% position moving 10% moves the account 0.3% — small account numbers are the honest arithmetic of small position sizes.
Same strategy, same run
The price history is seeded from your strategy text, so this result is stable —
re-run it and you get the same trades. Seed .
Simulated price history, generated in your browser for demonstration. Not a backtest against real market data, not a forecast, and not investment advice. No orders are placed.