Sheet As CMS Toolkit A Claude Skill For Google Sheets Backed Sites — Data skill for Claude Code

Sheet-as-CMS Toolkit — A Claude Skill for Google-Sheets-Backed Sites

**A Claude Skill that sets up, validates, and hardens a website that uses Google Sheets as its CMS.** It catches schema drift, validates row data, scans for XSS-risk content, recommends the right fetch method for the situation, and hands over working framework code — all with zero API keys and zero paid dependencies.

[](./LICENSE)   

---

Table of contents

• The problem this solves
• What it actually checks
• See it in action
• Why nothing else on GitHub covers this
• Who this is for
• Quick start
• Real usage examples
• How it works — no black box
• FAQ
• Part of a small series
• Author
• License

---

The problem this solves

Using a Google Sheet as a CMS is one of the best-kept secrets in small-scale web development. It's free, your content editor already knows how to use it, and there's no dashboard to build. Thousands of blogs, product catalogs, and marketing sites run on exactly this pattern right now.

It also fails in three specific, predictable ways, all of which are invisible until they've already caused a problem:

• A column gets renamed. Someone renames published_date to date because it reads cleaner, or reorders columns while cleaning up the sheet. The site doesn't crash — it just quietly starts rendering blank fields, because the code is still looking for a column that no longer exists under that name.