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xlsx-author Skill

AI Agent SkillPythonOpen source

Produce a .xlsx file on disk (headless) instead of driving a live Excel workbook — for managed-agent sessions with no open Office app. Published by anthropics in financial-services.

Decision snapshot

Is this a fit?

Best for

Security review, Writing, Includes SKILL.md, Reusable instructions

Works with

Compatibility not yet detected.

Access

Permission behavior not yet detected.

Setup

Copy skill directory

Project health

1 month ago · Apache-2.0 license

Considerations

No specific cautions were detected. Review the source and requested permissions before installing.

What is xlsx-author Skill?

Produce a .xlsx file on disk (headless) instead of driving a live Excel workbook — for managed-agent sessions with no open Office app. Published by anthropics in financial-services. 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.

Trust signal
95/100
Maintenance signal
90/100
Adoption signal
100/100

Automated repository signals based on public metadata such as recency, license, installation evidence, and adoption. These are not a security audit or endorsement. See how SkillIndex evaluates profiles.

Key capabilities

  • Includes SKILL.md support
  • Reusable instructions support
  • Security review
  • Writing
  • Security review use cases
  • Writing use cases

Declared skill metadata

  • Source file: plugins/agent-plugins/statement-auditor/skills/xlsx-author/SKILL.md

These fields retain source and confidence evidence from the indexed SKILL.md.

Compatibility and setup

Copy skill directory
  • Install or run with Copy skill directory

When to use xlsx-author Skill

  • Use it for security review.
  • Use it for writing.

Built with

PythonCopy skill directory

Editorial notes

Source

  • Creator: anthropics
  • Repository: anthropics/financial-services
  • Skill file: plugins/agent-plugins/statement-auditor/skills/xlsx-author/SKILL.md

What it does

Produce a .xlsx file on disk (headless) instead of driving a live Excel workbook — for managed-agent sessions with no open Office app.

Skill instructions

xlsx-author Use this skill when running headless (managed-agent / CMA mode) and you need to deliver an Excel workbook as a file artifact rather than editing a live workbook via mcpofficeexcel. Output contract - Write to ./out/<name.xlsx. Create ./out/ if it does not exist. - Return the relative path in your final message so the orchestration layer can collect it. How to build the workbook Write a short Python script and run it with Bash. Use openpyxl: python from openpyxl import Workbook from openpyxl.styles import Font, PatternFill wb = Workbook() ws = wb.active; ws.title = "Inputs" ws["B2"] = "Revenue"; ws["C2"] = 1250000000 ws["C2"].font = Font(color="0000FF") blue = hardcoded input calc = wb.createsheet("DCF") calc["C5"] = "=Inputs!C2(1+Inputs!C3)" black = formula wb.save("./out/model.xlsx") Conventions (mirror audit-xls) - Blue / black / green. Blue = hardcoded input, black = formula, green = link to another sheet/file. - No hardcodes in calc cells. Every calculation cell is a for

Verified compatibility and discovery

Frequently asked questions

What is xlsx-author?

xlsx-author is a open-source AI agent skill with Copy skill directory. Produce a .xlsx file on disk (headless) instead of driving a live Excel workbook — for managed-agent sessions with no open Office app.

Who is xlsx-author best for?

xlsx-author is best for reusing agent instructions, scripts, and references, security review workflows, writing workflows.

How do I install xlsx-author?

Install or run xlsx-author using Copy skill directory. Check xlsx-author for the latest setup command.

Is xlsx-author actively maintained?

xlsx-author may need a closer maintenance check before production use.

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Stars
34,310
Forks
5,108
Last commit
1 month ago
Last verified
Aug 20, 2026
Metadata fetched
Aug 20, 2026
Repository age
7 months
License
Apache-2.0

Project health auto-fetched from the source repository.

Maintain this resource?

Review this source-backed profile, send a correction with evidence, or link to it from your documentation. Claims verify your relationship to the project; profile facts still require source evidence and editorial review.

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