paper-trade-runnerlisted

# Paper Trade Runner The pattern behind a working signal-only daemon for Nifty / BankNifty intraday options. ## When to use - User wants to test a strategy in live market conditions without real money. - User wants signals delivered (UI / log / notification) but no order execution. - User wants to build a P&L track record before sizing up. ## Core loop ``` every N seconds during market hours (09:15 – 15:30 IST): 1. fetch live quotes / candles 2. evaluate entry rules → generate signal (or skip) 3. for each open position: a. update mark-to-market b. check stop-loss / target / time-stop c. if hit → resolve, log, free capital 4. at 15:20 IST → force-close all open positions (intraday safety) 5. at 15:35 IST → write EOD summary ``` ## Required components - **Signal generator** — pure function: `(market_state) → Signal | None`. Easy to unit test. - **Position store** — JSON / SQLite. Each row: entry_time, instrument, side, qty, entry_price, sl, target, status, exit_time, exit_price, pnl. - **Capital tracker** — starting balance, available margin, blocked margin. Reject signals that exceed available capital. - **Loss cap** — hard stop at configurable daily DD (default: 5% of starting capital). Once hit, no new signals till next day. ## Signal schema ```json { "id": "sig_20260606_0934_01", "instrument": "NIFTY26JUN24200CE", "side": "BUY", "qty": 50, "entry_price": 142.50, "stop_loss": 120.00, "target": 180.00, "rationale": "20EM