excel-author

Create auditable Excel workbooks with openpyxl using Inputs, Calc, and Checks sheets.

Updated May 2, 2026
One-click install
npx skills add https://github.com/AlvaroBiano/hermes-agent --skill excel-author-alvarobiano
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: excel-author
Source: https://github.com/AlvaroBiano/hermes-agent/tree/main/optional-skills/finance/excel-author
Command: npx skills add https://github.com/AlvaroBiano/hermes-agent --skill excel-author-alvarobiano

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

Build auditable Excel workbooks headless with clear conventions (blue input cells, black formulas, and green links) to improve transparency, reproducibility, and reviewability in financial models.

Core Features & Use Cases

  • Enforces blue/black/green cell conventions for inputs, formulas, and links to aid review.
  • Uses formulas over hardcoded values and provides named ranges for cross-sheet references.
  • Includes a dedicated Checks tab to validate balance sheets, cash flows, and consistency of calculations for audit-ready outputs.
  • Supports sensitivity tables for scenario analysis and outputs to ./out/<name>.xlsx with one logical model per file.
  • Output to ./out/<name>.xlsx with one logical model per file.

Quick Start

Generate an auditable Excel workbook headlessly using openpyxl with Inputs, Calc, and Checks sheets following blue/black/green conventions.

Frequently Asked Questions about excel-author

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate auditable Excel financial models headlessly with openpyxl?

You generate auditable Excel financial models headlessly with openpyxl by using this Skill to create workbooks programmatically. It structures files with Inputs, Calc, and Checks sheets, enforcing blue, black, and green cell conventions for transparent reviewability.

What is the blue black green cell convention for Excel financial modeling?

The blue black green cell convention for Excel financial modeling color codes inputs, formulas, and links. This Skill enforces these standards headlessly using openpyxl to improve transparency, reproducibility, and reviewability in your workbooks.

Can I add balance sheet checks and sensitivity tables to openpyxl workbooks programmatically?

Yes, you can add balance sheet checks and sensitivity tables to openpyxl workbooks programmatically. This Skill includes a dedicated Checks tab to validate calculations and supports sensitivity tables for scenario analysis in audit-ready outputs.

Does this openpyxl Excel generator support named ranges for cross-sheet references?

Yes, this openpyxl Excel generator supports named ranges for cross-sheet references. It uses formulas instead of hardcoded values and provides named ranges to maintain calculation consistency across separate Inputs, Calc, and Checks sheets.

What is the best way to automate reproducible Excel templates for reconciliations?

The best way to automate reproducible Excel templates for reconciliations is using a headless openpyxl approach. This Skill enforces consistent templates with blue input cells, black formulas, and green links, outputting one logical model per file to a designated directory.

Do I need any external dependencies to create audit trail Excel workbooks with this approach?

No, you do not need external dependencies to create audit trail Excel workbooks with this approach. The Skill operates independently using openpyxl to enforce cell conventions, apply formulas, and output structured xlsx files without additional library requirements.