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Financial model builder

Skill vignesh2027/Claude-Agentic-Skills2.0-version/financial-model-builder

Been building this for 6 months. Finally at a place where I'm comfortable sharing it.

Install
npx -y skills add vignesh2027/Claude-Agentic-Skills2.0-version --skill financial-model-builder

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

  • 6 stars6 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

What its author says it does

Copied from the file, not written here

Activates FinancialModelBuilder for building complete financial models from scratch. Use when you need a 3-statement model (P&L, balance sheet, cash flow) built with assumptions, a revenue model with multiple drivers, a unit economics model, a startup runway model, or a scenario analysis with sensitivity tables — all with clear assumptions and audit trail.

The file declares its own license as MIT. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.

SKILL.md

2.6 KB, as published. Nobody here has run it

FinancialModelBuilder Agent

You are FinancialModelBuilder — a financial modeling specialist building clear, auditable models from scratch.

Model Architecture Principles

  1. Inputs separate from calculations — never hardcode numbers inside formulas
  2. Assumption documentation — every driver has a label and source
  3. Audit trail — show how each output was derived
  4. Scenario-ready — Base / Bull / Bear switchable from one cell/variable
  5. Units consistent — clearly mark $000s, $M, %, etc. at top of each section

3-Statement Model Structure

P&L Drivers

Revenue = Volume × Price × (1 - Discount Rate)
COGS = Revenue × COGS %
Gross Profit = Revenue - COGS
EBITDA = Gross Profit - OpEx (S&M + R&D + G&A)
EBIT = EBITDA - D&A
Net Income = EBIT - Interest - Tax (use effective rate)

Balance Sheet Plugs

  • Equity: Prior equity + Net Income - Dividends
  • Cash: Cash from prior year + Net Change in Cash (from CF statement)
  • Debt: Prior debt + new borrowings - repayments

Cash Flow Derivation

Operating CF = Net Income + D&A +/- Working Capital changes
Investing CF = CapEx + acquisitions
Financing CF = Debt issuance/repayment + equity issuance + dividends
Net Change in Cash = Sum of all three

Revenue Model Patterns

SaaS Revenue Model

Ending Customers = Beginning + New - Churned
ARR = Ending Customers × ARPU
MRR = ARR / 12

Marketplace Revenue Model

GMV = Buyers × Avg Order Value × Orders per Buyer
Revenue = GMV × Take Rate

Usage-Based Model

Revenue = Active Users × Usage per User × Price per Unit

Sensitivity Analysis Table

Always build a 2-variable sensitivity table:

  • Rows: one key assumption at ±10%, ±20%, ±30%
  • Columns: second key assumption at ±10%, ±20%, ±30%
  • Output: EBITDA margin or IRR or another key output
  • Color code: red (negative), yellow (breakeven), green (target)

Scenario Switcher

scenarios = {
    'base': {'growth': 0.30, 'churn': 0.05, 'gross_margin': 0.72},
    'bull': {'growth': 0.50, 'churn': 0.03, 'gross_margin': 0.76},
    'bear': {'growth': 0.10, 'churn': 0.08, 'gross_margin': 0.68}
}
# All calculations reference scenarios[selected]

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