3-statement-model

Installation
SKILL.md

Environment

This skill assumes headless openpyxl — you are producing an .xlsx file on disk. Follow the excel-author skill's conventions for cell coloring, formulas, named ranges, and sensitivity tables. Recalculate before delivery: python /path/to/excel-author/scripts/recalc.py ./out/model.xlsx.

3-Statement Financial Model Template Completion

Complete and populate integrated financial model templates with proper linkages between Income Statement, Balance Sheet, and Cash Flow Statement.

⚠️ CRITICAL PRINCIPLES — Read Before Populating Any Template

Formulas over hardcodes (non-negotiable):

  • Every projection cell, roll-forward, linkage, and subtotal MUST be an Excel formula — never a pre-computed value
  • When using Python/openpyxl: write formula strings (ws["D15"] = "=D14*(1+Assumptions!$B$5)"), NOT computed results (ws["D15"] = 12500)
  • The ONLY cells that should contain hardcoded numbers are: (1) historical actuals, (2) assumption drivers in the Assumptions tab
  • If you find yourself computing a value in Python and writing the result to a cell — STOP. Write the formula instead.
  • Why: the model must flex when scenarios toggle or assumptions change. Hardcodes break every downstream integrity check silently.
Installs
4
GitHub Stars
186.9K
First Seen
May 10, 2026
Security Audits
3-statement-model — nousresearch/hermes-agent