$npx -y skills add dkyazzentwatwa/chatgpt-skills --skill financial-calculatorRun loan, investment, NPV, retirement, savings, and risk calculations with schedules and charts. Use for deterministic financial modeling tasks.
| 1 | # Financial Calculator |
| 2 | |
| 3 | Use deterministic calculations instead of ad hoc spreadsheet math when the user needs precise financial outputs. |
| 4 | |
| 5 | ## Use This For |
| 6 | |
| 7 | - Loan and mortgage math |
| 8 | - Investment growth and savings goals |
| 9 | - NPV, IRR, and payback analysis |
| 10 | - Retirement projections and withdrawal planning |
| 11 | - Monte Carlo style risk scenarios |
| 12 | |
| 13 | ## Workflow |
| 14 | |
| 15 | 1. Confirm units and assumptions first: rates, compounding, time horizon, taxes, and inflation. |
| 16 | 2. Use `scripts/financial_calc.py` as the source of truth for the computation. |
| 17 | 3. Return both the answer and the assumptions that materially drive it. |
| 18 | |
| 19 | ## Guardrails |
| 20 | |
| 21 | - Treat outputs as calculations, not personalized financial advice. |
| 22 | - Surface simplifying assumptions and scenario sensitivity. |