GPT-6 Astra is the most powerful engine for building multi-agent systems. i wrote a 12-page research paper on how to build a one-person hedge fund that runs 24/7 using Astra. Here is the full architecture: 300 parallel agents monitoring equities, perps, options flow, SEC filings, X accounts, and macro calendar at once • Monitoring swarm: filters thousands of signals down to 10-30 candidates per day. Everything else gets thrown out • Hypothesis agent: generates a structured thesis for each candidate: instrument, edge, catalyst, invalidation • Backtest agent: writes Python, runs 5 years of data. Gate: Sharpe > 1.5, drawdown < 15% • Validation agent: checks statistical significance, out-of-sample on last 12 months, regime dependence, transaction costs. Bull-market-only strategies get killed • Deployment agent: sends to broker, telegram pings your phone: confidence, Sharpe, position size • Risk agent: runs independently. 5% drawdown from peak = all positions close. No override This 12-page PDF changed how I think about systematic trading. Read it now, then explore the article below to learn how to build a multi-agent trading desk with Astra using real cases.