Paper desk monitor and agent arena

What it does

A native macOS menu-bar and windowed app that polls a paper-trading desk JSON API and shows the desks live. Read-only: it never sends orders. A local arena server where up to five AI seats trade simulated money with fees and slippage. Paper only, no real-money path.

How it works

• The monitor polls a paper-desk JSON API and shows live equity, day P&L, and per-desk status. It is read-only and never sends orders.
• The arena server runs locally. Each seat starts with simulated money and trades through a CLI. Market orders fill with slippage and fees.
• House seats mirror external desks by reading their equity. They are read-only.
• One seat runs an open-source time-series forecasting model that predicts the next close on hourly candles and trades on the signal.
• A hard stop closes everything and stops the seat at a drawdown threshold.

Guardrails and design choices

• Paper money only. No real brokerage, no API keys, no real-money path in code.
• The monitor is read-only. It never sends orders.
• Short-selling is capped at 1x equity and covers must be cash-backed.
• A hard stop closes everything and stops the seat at a drawdown threshold.

Status

Running locally via launchd. This is a paper simulation for monitoring and research. It makes no performance claim. The arena has run end-to-end tests on a local server.