Excel Hygiene

A rigorous "second pair of eyes" on any xlsx before it goes out. Runs a deterministic script for precise MECHANICAL checks (numbers as text, hardcoded-over-formula, cell errors, truncated SUM, percent as whole number), then reasons across the full spreadsheet-error taxonomy (Panko 2008: violations vs errors; qualitative vs quantitative; mistakes / slips / lapses; life-cycle) using general business and spreadsheet knowledge. Use for calcs, offers, mediaplans, budgets, any table. Client-specific thresholds (exact rates, margins, segment bands) belong to a domain skill.

17 stars 2 forksDocuments & Office Files

Install

skills CLI (Claude Code, Cursor, Codex and more)

npx skills add BayramAnnakov/excel-hygiene --skill excel-hygiene

Manual install

git clone --depth 1 https://github.com/BayramAnnakov/excel-hygiene.git /tmp/excel-hygiene
mkdir -p ~/.claude/skills
cp -r /tmp/excel-hygiene/. ~/.claude/skills/excel-hygiene

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# Excel review — a second pair of eyes (taxonomy-driven)

## What to do
1. **Run the script** for precise, reproducible **mechanical** checks (openpyxl, no LibreOffice).
   It needs `openpyxl` — if the import fails, `pip install openpyxl` first:
   ```
   python3 scripts/check_excel.py <path/to/file.xlsx>
   ```
2. **Then review against the taxonomy below.** The script is a **floor, not a ceiling.** Read each
   sheet and reason through every class, using your general business/finance/spreadsheet knowledge.
   Goal (per Panko 2008): be **expansive — suggest issues to check, don't just confirm a fixed list.**

## The error taxonomy — your review framework (Panko–Halverson, revised 2008)
Work top-down. Each class has a different **detection rate** — the ones lowest for the human eye
(omission/lapses and qualitative) are where you must look hardest; that's where real value is added.

### 1. Violations vs Errors
- **Violation** — breaks a policy or compliance rule (even if the math is right): a banned/hardcoded
  rate, a missing required control/disclaimer/sign-off, a regulated calc done off-standard.
  *You usually can't know client policy — flag "confirm against your standards."*
- **Error** — inadvertent. Everything below.

### 2. Qualitative vs Quantitative
- **Qualitative** — the number is *not* wrong today, but the design is risky (latent). Often the most
  dangerous because it survives review. Examples:

Read the full skill on GitHub

Details

Skill name: excel-hygiene
Repository: BayramAnnakov/excel-hygiene
License: Apache-2.0
Repo updated: 3 June 2026

FAQ

What does the Excel Hygiene skill do?

How do I install the Excel Hygiene skill?

skills CLI (Claude Code, Cursor, Codex and more): npx skills add BayramAnnakov/excel-hygiene --skill excel-hygiene. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is Excel Hygiene popular?

It lives in BayramAnnakov/excel-hygiene, which has 17 GitHub stars and 2 forks.

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