N° 08For markets
Your limits, enforced in code.
A market terminal over plain files. Simulated, paper and live are kept apart, and an agent trades only inside the grant you give it.
Plate 26 · A trading desk before the open, screens dark but one
The terminal
A terminal over a file.
Tape, chart, book, trades, news, positions, a ticket and your orders — all reading one .market.jsonl file you own. Arrange them as a dashboard and save the layout as a file too.
Plate 27 · Three lights on a desk: simulated, paper, live
Simulated, paper and live never mix.
Run an idea against recorded prices, then on a venue's paper account, and only then live. Each order is recorded before it is sent. Accepted is shown as accepted — not as filled.
Authority
An agent trades only what you grant.
A market grant names the venues, the symbols, the largest quantity, the largest notional and the most orders a day. The limits are checked on every order. Cancelling a resting order is always allowed.
Connectors exist for Alpaca, Coinbase, Kraken, Binance, Tradier and Interactive Brokers.
Start with recorded prices.
Open the workbench and try the terminal against a sample market file.