What is schema?
schema is a Claude skill by coreyhaines31 that add and optimize schema markup and structured data for better SEO. It is listed under Data & databases and has 55,270 GitHub stars.
| Type | Claude skill |
|---|---|
| Author | coreyhaines31 |
| Repository | coreyhaines31/marketingskills |
| Popularity | 55,270 GitHub stars |
| Category | Data & databases |
| Security | Low risk (96/100) |
| Rank | #180 of 1,262 Claude skills; #6 in Data & databases |
| SKILL.md length | 191 lines |
| License | MIT |
| Last commit | 2026-10-15 |
| Stars this week | +1,076 |
Is schema safe to install?
schema scores 96/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 8 of 9 checks.
Skill results come from a static scan of its SKILL.md for instruction overrides, hidden actions, risky commands and credential access.
| Check | Result |
|---|---|
| No instruction-override phrases | Pass |
| No hidden actions | Pass |
| No pipe-to-shell installers | Pass |
| No obfuscated code | Pass |
| No destructive commands | Pass |
| Doesn't ask for keys or credentials | Pass |
| Makes network requests | Note |
| No shell commands | Pass |
| Installs no packages | Pass |
What the scan matched
- network:
https://
How do I install schema?
- Install with the skills CLI. Works for Claude Code and other agents that read skills.
npx skills add https://github.com/coreyhaines31/marketingskills --skill schema
- Or copy it by hand. Claude Code loads any folder with a SKILL.md from ~/.claude/skills.
git clone https://github.com/coreyhaines31/marketingskills cp -r marketingskills/skills/schema ~/.claude/skills/schema
- Use it. Claude loads the skill when a task matches its description. You can also name it in your prompt.
Use the schema skill to …
Or ask Claude to set it up
Paste this into Claude Code and it installs schema for you:
Install the "schema" skill from https://github.com/coreyhaines31/marketingskills/tree/main/skills/schema into ~/.claude/skills, then tell me in one line what it does.
More from coreyhaines31/marketingskills
This repository has at least 9 Claude skills on MCPMods.
- seo-audit: Audit and diagnose technical and on-page SEO issues on a site (Low risk)
- copywriting: Write and rewrite marketing copy for landing pages, homepages, and ads (Low risk)
- ab-testing: Plan and implement A/B tests or experiments for any digital experience (Low risk)
- ad-creative: Generate and iterate ad creative including headlines, descriptions, and primary text (Low risk)
- ai-seo: Optimize content to appear in AI-generated answers and LLM search results (Low risk)
- analytics: Set up and audit analytics tracking and measurement pipelines (Low risk)
- churn-prevention: Build cancellation flows, save offers, and recover failed payments (Low risk)
- cold-email: Write B2B cold emails and follow-up sequences that convert (Low risk)