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Financial calculator

Skill dkyazzentwatwa/chatgpt-skills/financial-calculator

Run loan, investment, NPV, retirement, savings, and risk calculations with schedules and charts. Use for deterministic financial modeling tasks.From its SKILL.md

Install
npx -y skills add dkyazzentwatwa/chatgpt-skills --skill financial-calculator

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

  • no licenseNo license file was found in the repository. Code published without one is not open source by default, so using it at work is a question for whoever answers licensing questions where you are.

SKILL.md

0.9 KB, 147 tokens by cl100k_base, as published. Nobody here has run it

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

  1. Confirm units and assumptions first: rates, compounding, time horizon, taxes, and inflation.
  2. Use scripts/financial_calc.py as the source of truth for the computation.
  3. 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.

What ships with it: 3 files

39.5 KB alongside SKILL.md, 1 of them executable

agents/

scripts/

Gives 0 of the 12 instructions most finance skills give in 147 tokens

Counted across 469 of the 469 authors here whose files we hold, read 2026-08-07

  • Extract date vendor amount and descriptionin 15 of 469, across 3 files
  • Scan folder for invoice filesin 14 of 469, across 2 files
  • Rename files to standard formatin 14 of 469, across 2 files
  • Show organization plan before movingin 14 of 469, across 2 files
  • Generate summary CSVin 14 of 469, across 2 files
  • Organize files by categoryin 13 of 469, across 1 file
  • Preserve original filesin 13 of 469, across 1 file
  • Flag files missing critical infoin 13 of 469, across 1 file
  • Produce the requested output filein 9 of 469, across 4 files
  • Build best, base, and worst case scenariosin 9 of 469, across 5 files
  • Implement backoff if rate limit errors occurin 8 of 469, across 3 files
  • Determine the weighted average cost of capitalin 8 of 469, across 4 files

Said here and by no other author read

  • Confirm units and assumptions before calculating
  • Use the designated calculation script for computations
  • Return the answer with its driving assumptions

Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once. Length counted with cl100k_base; the agent that loads this file may tokenize it differently.

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