financial-calculator
PopularRun loan, investment, NPV, retirement, savings, and risk calculations with schedules and charts. Use for deterministic financial modeling tasks.
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Updated 4/8/2026
SKILL.md
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name
financial-calculator
description
Run loan, investment, NPV, retirement, savings, and risk calculations with schedules and charts. Use for deterministic financial modeling tasks.
Financial Calculator
Use deterministic calculations instead of ad hoc spreadsheet math when the user needs precise financial outputs.
Use This For
- Loan and mortgage math
- Investment growth and savings goals
- NPV, IRR, and payback analysis
- Retirement projections and withdrawal planning
- Monte Carlo style risk scenarios
Workflow
- Confirm units and assumptions first: rates, compounding, time horizon, taxes, and inflation.
- Use
scripts/financial_calc.pyas the source of truth for the computation. - Return both the answer and the assumptions that materially drive it.
Guardrails
- Treat outputs as calculations, not personalized financial advice.
- Surface simplifying assumptions and scenario sensitivity.
