{"sources": [
 {"url": "https://github.com/danrobinson/prediction-market-challenge", "quote": "a static hidden-liquidity competitor"},
 {"url": "https://raw.githubusercontent.com/danrobinson/prediction-market-challenge/b244530ee2a6247b5f930830eeca9dd950da0e7e/orderbook_pm_challenge/config.py", "quote": "competitor_spread_ticks_max: int = 4"},
 {"url": "https://raw.githubusercontent.com/danrobinson/prediction-market-challenge/b244530ee2a6247b5f930830eeca9dd950da0e7e/orderbook_pm_challenge/market.py", "quote": "raise OrderBookError(\"Insufficient free cash for order collateral\")"}
]}