options-payoff

# Options Payoff Curve Skill Generates a fully interactive HTML widget (via `visualize:show_widget`) showing: - **Expiry payoff curve** (dashed gray line) — intrinsic value at expiration - **Theoretical value curve** (solid colored line) — Black-Scholes price at current DTE/IV - Dynamic sliders for all key parameters - Real-time stats: max profit, max loss, breakevens, current P&L at spot --- ## Step 1: Extract Strategy From User Input When the user provides a screenshot or text, extract: | Field | Where to find it | Default if missing | |---|---|---| | Strategy type | Title bar / leg description | "custom" | | Underlying | Ticker symbol | SPX | | Strike(s) | K1, K2, K3... in title or leg table | nearest round number | | Premium paid/received | Filled price or avg price | 5.00 | | Quantity | Position size | 1 | | Multiplier | 100 for equity options, 100 for SPX | 100 | | Expiry | Date in title | 30 DTE | | Spot price | Current underlying price (NOT strike) | middle strike | | IV | Shown in greeks panel, or estimate from vega | 20% | | Risk-free rate | — | 4.3% | **Critical for screenshots**: The spot price is the CURRENT price of the underlying index/stock, NOT the strikes. Never default spot to a strike price value. **Current SPX reference price:** ``` !`python3 -c "exec('try:\n import yfinance as yf\n p=yf.Ticker(\'^GSPC\').fast_info[\'lastPrice\']\n print(f\'SPX ≈ {p:.0f}\')\nexcept Exception:\n print(\'SPX price unavailable — check market data\')')"` ``` --- ## S...