New: 98,000+ skills indexed from GitHub repos with 100+ stars · every skill safety-checkedBrowse top skillsTop skills
Esc to closeBrowse all skills
Submit a skillBrowse skills
Submit a skillBrowse skills

Agent skill

Schema Markup

by freekmurze in freekmurze/dotfiles

When the user wants to add, fix, or optimize schema markup and structured data on their site.

No licenceAuto-check passedMarketing & SEO

Install Schema Markup

skills CLI
$ npx skills add freekmurze/dotfiles --skill schema-markup -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install freekmurze/dotfiles schema-markup --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/freekmurze/dotfiles.git skills-src && mkdir -p .claude/skills && cp -r skills-src/config/claude/skills/marketing/skills/schema-markup .claude/skills/schema-markup && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
schema-markup
GitHub stars
1k
Used in
15 other repos
Token cost
~1.2k tokens
SKILL.md length
484 words
Files
2 (incl. references)
Skills in repo
51
Repo updated
First seen
Licence
None found

At a glance

When the user wants to add, fix, or optimize schema markup and structured data on their site.

  • Works in 4 steps: Accuracy First → Use JSON-LD → Follow Google's Guidelines → …
  • Optimize schema markup and structured data on their site
  • SKILL.md covers Initial Assessment, Core Principles, Common Schema Types and Quick Reference, plus 6 more sections
  • Reaches schema.org

What it does

Schema Markup is an agent skill from freekmurze/dotfiles. When the user wants to add, fix, or optimize schema markup and structured data on their site. Also use when the user mentions "schema markup," "structured data," "JSON-LD," "rich snippets," "schema.org," "FAQ schema," "product schema," "review schema," or "breadcrumb schema." For broader SEO issues, see seo-audit.

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/schema-examples.md`).

It sits in Marketing & SEO, covering Schema markup.

When your agent uses it

  • Optimize schema markup and structured data on their site
  • The user mentions schema markup
  • Structured data
  • Breadcrumb schema. For broader SEO issues

Example prompts

  • “schema markup,”
  • “structured data,”
  • “JSON-LD,”
  • “/schema-markup”

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Accuracy First
  2. Use JSON-LD
  3. Follow Google's Guidelines
  4. Validate Everything

What it can do on your machine

Read from SKILL.md and the folder at commit 296be1a. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are json).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • schema.org

    Also links to:

    • search.google.com
    • validator.schema.org

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Schema Markup loads about 1.2k tokens when it runs, and up to ~3.2k if it reads all its reference files. Until then it costs about 82 tokens; SKILL.md has 484 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~82
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 484 words (~1,194 tokens).

“You are an expert in structured data and schema markup. Your goal is to implement schema.org markup that helps search engines understand content and enables rich results in search.”

— opening of SKILL.md by freekmurze
name
schema-markup
version
1.0.0

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file (references) in config/claude/skills/marketing/skills/schema-markup of freekmurze/dotfiles.

  • SKILL.md
  • references/schema-examples.md

Open the folder on GitHubat commit 296be1a

Used in 16 other repositories

We found 25 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 15 other GitHub owners. This page covers the copy in freekmurze/dotfiles, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Schema Markup next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Schema Markup compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Schema Markup this skillfreekmurze/dotfiles1k15 repos~1.2kAutomated safety check: PassNone
SEO GeoReScienceLab/opc-skills1.8k4 repos~2.1kAutomated safety check: PassApache-2.0
GEO-First SEO Audit Toolzubair-trabzada/geo-seo-claude11k—~2.8kAutomated safety check: NotesMIT
Portaljs Add Dcatdatopian/portaljs2.4k1 repos~1.8kAutomated safety check: PassMIT
SEO Optimizerailabs-393/ai-labs-claude-skills4541 repos~3.2kAutomated safety check: PassMIT
Geoliangdabiao/GEO-Content-Optimizer-Skill2031 repos~2.3kAutomated safety check: NotesMIT

Similar skills

  • SEO Geo

    ReScienceLab/opc-skills

    SEO & GEO (Generative Engine Optimization) for websites. An agent skill from ReScienceLab/opc-skills.

    1.8k GitHub starsUsed in 4 repos~2.1k tokens
    Marketing & SEOAuto-check passed

  • GEO-First SEO Audit Tool

    zubair-trabzada/geo-seo-claude

    Audits a website for AI search visibility across ChatGPT, Claude, Perplexity and Google AI Overviews while checking traditional SEO, schema and E-E-A-T content quality.

    11k GitHub stars~2.8k tokensUpdated yesterday
    Marketing & SEOAuto-check: notes

  • Portaljs Add Dcat

    datopian/portaljs

    Make a PortalJS portal harvestable by national/EU/US open-data portals — emit standards-compliant DCAT catalog feeds (DCAT 2/3, DCAT-AP, DCAT-US, national profiles) in JSON-LD, Turtle, and RDF/XML…

    2.4k GitHub starsUsed in 1 repo~1.8k tokens
    Marketing & SEOAuto-check passed

  • SEO Optimizer

    ailabs-393/ai-labs-claude-skills

    This skill should be used when analyzing HTML/CSS websites for SEO optimization, fixing SEO issues, generating SEO reports, or implementing SEO best practices.

    454 GitHub starsUsed in 1 repo~3.2k tokens
    Marketing & SEOAuto-check passed

  • Geo

    liangdabiao/GEO-Content-Optimizer-Skill

    完整的 GEO（生成式引擎优化）服务流水线：给一个产品官网 URL 和介绍材料， 做站点诊断与 AI 答案采样、生成带验收标准的执行工单、产出可直接部署的资产 （llms.txt / JSON-LD / 定义块 / FAQ / 内容大纲与初稿）、自动验收工单是否闭环、 并打包成可直接发给客户的交付物。可按周期复跑，做长期 GEO 运营与月报。

    203 GitHub starsUsed in 1 repo~2.3k tokens
    Marketing & SEOAuto-check: notes

  • SEO Audit with Search Console

    nowork-studio/notfair-plugin

    Runs a full SEO audit that combines Google Search Console, URL Inspection, PageSpeed Insights and a technical crawl, then ranks quick wins and a 30-day plan.

    3.9k GitHub starsUsed in 1 repo~15k tokens
    Marketing & SEOAuto-check: warnings

More from freekmurze/dotfiles

All 51 skills in this repo

  • Social Content

    freekmurze/dotfiles

    When the user wants help creating, scheduling, or optimizing social media content for LinkedIn, Twitter/X, Instagram, TikTok, Facebook, or other platforms.

    1k GitHub starsUsed in 23 repos~2.1k tokens
    Auto-check passed

  • Email Sequence

    freekmurze/dotfiles

    When the user wants to create or optimize an email sequence, drip campaign, automated email flow, or lifecycle email program.

    1k GitHub starsUsed in 19 repos~2k tokens
    Auto-check passed

  • Referral Program

    freekmurze/dotfiles

    When the user wants to create, optimize, or analyze a referral program, affiliate program, or word-of-mouth strategy.

    1k GitHub starsUsed in 17 repos~1.8k tokens
    Auto-check passed

  • Typefully

    freekmurze/dotfiles

    Create, schedule, and manage social media posts via Typefully.

    1k GitHub starsUsed in 2 repos~3.4k tokens
    Auto-check: notes

  • Onboarding Cro

    freekmurze/dotfiles

    When the user wants to optimize post-signup onboarding, user activation, first-run experience, or time-to-value.

    1k GitHub starsUsed in 16 repos~1.6k tokens
    Auto-check passed

  • Ab Test Setup

    freekmurze/dotfiles

    When the user wants to plan, design, or implement an A/B test or experiment.

    1k GitHub starsUsed in 15 repos~1.8k tokens
    Auto-check passed

Categories

Questions about Schema Markup

What does Schema Markup do?

When the user wants to add, fix, or optimize schema markup and structured data on their site. Schema Markup is an agent skill from freekmurze/dotfiles. When the user wants to add, fix, or optimize schema markup and structured data on their site.

When should I use Schema Markup?

Schema Markup fits situations like: optimize schema markup and structured data on their site; the user mentions schema markup; structured data; breadcrumb schema. For broader SEO issues.

How do I install Schema Markup in Claude Code?

Run `npx skills add freekmurze/dotfiles --skill schema-markup -a claude-code`. Or copy the skill folder (config/claude/skills/marketing/skills/schema-markup in freekmurze/dotfiles) into .claude/skills/schema-markup in your project. Claude Code loads it when a task matches its description.

How do I install Schema Markup in Codex?

Run `npx skills add freekmurze/dotfiles --skill schema-markup -a codex`. Or copy the skill folder (config/claude/skills/marketing/skills/schema-markup in freekmurze/dotfiles) into .agents/skills/schema-markup in your project. Codex loads it when a task matches its description.

Can I use Schema Markup in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add freekmurze/dotfiles --skill schema-markup -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/schema-markup, .gemini/skills/schema-markup, .github/skills/schema-markup and .opencode/skills/schema-markup in your project.

What does Schema Markup need to run?

SKILL.md names no scripts, command-line tools or credentials: Schema Markup is instructions for the agent only.

Does Schema Markup access the network?

SKILL.md names 3 domains. In commands or code: schema.org; the agent is likely to contact it when it follows the instructions. As links in the text: search.google.com and validator.schema.org. This is read from the text; nothing was executed.

Is Schema Markup safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Schema Markup use?

No licence was found for Schema Markup or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Schema Markup use?

About 1.2k tokens (SKILL.md is roughly 4.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2k tokens, read only when the agent opens those files.

What are the alternatives to Schema Markup?

Skills that share tags, products or a category with Schema Markup: SEO Geo (ReScienceLab/opc-skills, 1.8k stars), GEO-First SEO Audit Tool (zubair-trabzada/geo-seo-claude, 11k stars), Portaljs Add Dcat (datopian/portaljs, 2.4k stars) and SEO Optimizer (ailabs-393/ai-labs-claude-skills, 454 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Schema Markup?

freekmurze (a GitHub user) maintains it in freekmurze/dotfiles, which has 1,012 GitHub stars. The repository holds 51 skills in this directory. The repository was last updated on October 5, 2026.

Source: freekmurze/dotfiles on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.