excel-author Skill
Build auditable Excel workbooks headless with openpyxl — blue/black/green cell conventions, formulas over hardcodes, named ranges, balance checks, sensitivity tables. Use for financial models, audit outputs, reconciliations. Published by NousResearch in hermes-agent.
What is excel-author Skill?
Build auditable Excel workbooks headless with openpyxl — blue/black/green cell conventions, formulas over hardcodes, named ranges, balance checks, sensitivity tables. Use for financial models, audit outputs, reconciliations. Published by NousResearch in hermes-agent. This profile combines repository metadata with install, compatibility, and usage signals so developers can quickly decide whether it fits their agent workflow before opening the source repository.
Automated repository signals based on public metadata such as recency, license, installation evidence, and adoption. These are not a security audit or endorsement.
Key capabilities
- Includes SKILL.md support
- Reusable instructions support
- Security review
- Data analysis
- Writing
- Security review use cases
- Data analysis use cases
Technical details
- Install or run with Copy skill directory
When to use excel-author Skill
- Use it for security review.
- Use it for data analysis.
- Use it for writing.
Built with
Editorial notes
Source
- Creator: NousResearch
- Repository: NousResearch/hermes-agent
- Skill file: optional-skills/finance/excel-author/SKILL.md
What it does
Build auditable Excel workbooks headless with openpyxl — blue/black/green cell conventions, formulas over hardcodes, named ranges, balance checks, sensitivity tables. Use for financial models, audit outputs, reconciliations.
Skill instructions
excel-author Produce an .xlsx file on disk using openpyxl. Follow the banker-grade conventions below so the model is auditable, flexible, and reviewable by someone other than the person who built it. Adapted from Anthropic's xlsx-author and audit-xls skills in the anthropics/financial-services repo. The MCP / Office-JS / Cowork-specific branches of the originals are dropped — this skill assumes headless Python. Output contract - Write to ./out/<name.xlsx. Create ./out/ if it does not exist. - Return the relative path in your final message so downstream tools can pick it up. - One logical model per file. Do not append to an existing workbook unless explicitly asked. Setup bash pip install "openpyxl=3.0" Core conventions (non-negotiable) Blue / black / green cell color - Blue (Font(color="0000FF")) — hardcoded input a human entered. Revenue drivers, WACC inputs, terminal growth, market data. - Black (default) — formula. Every derived cell is a live Excel formula. - Green (Font(color="006
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Frequently asked questions
What is excel-author?
excel-author is a open-source AI agent skill with Copy skill directory. Build auditable Excel workbooks headless with openpyxl — blue/black/green cell conventions, formulas over hardcodes, named ranges, balance checks, sensitivity tables.
Who is excel-author best for?
excel-author is best for reusing agent instructions, scripts, and references, security review workflows, data analysis workflows, writing workflows.
How do I install excel-author?
Install or run excel-author using Copy skill directory. Check excel-author for the latest setup command.
Is excel-author actively maintained?
excel-author may need a closer maintenance check before production use.
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