schema-markup

schema-markup is a skill for Claude Code from textura-agency/next16-claude-starter. It costs 85 tokens per session (657 once invoked), scanned A, original, Unlicense.

A skill for adding JSON-LD structured data, a machine-readable description of a web page, using the project's existing helper. It supports page types such as organizations, websites, articles, products, services, FAQs, and breadcrumbs.

In plain words
What is it for?
Use it when adding or updating structured data, checking required properties and absolute URLs, or connecting related entities with references.
Why use it?
It keeps search-engine metadata consistent with the visible page and helps avoid invalid, duplicated, or misleading markup.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it when adding or updating structured data, checking required properties and absolute URLs, or connecting related entities with references.

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Install with agentmods
npx agentmods add skills/textura-agency/next16-claude-starter/schema-markup
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add textura-agency/next16-claude-starter --skill schema-markup
Clone the repo
git clone --depth 1 https://github.com/textura-agency/next16-claude-starter

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for schema-markup

README.md
[![agentmods](https://agentmods.dev/badge/skills/textura-agency/next16-claude-starter/schema-markup/github.svg)](https://agentmods.dev/skills/textura-agency/next16-claude-starter/schema-markup)
Your own site
<a href="https://agentmods.dev/skills/textura-agency/next16-claude-starter/schema-markup"><img src="https://agentmods.dev/badge/skills/textura-agency/next16-claude-starter/schema-markup/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for schema-markup

Your own site · 80×15
<a href="https://agentmods.dev/skills/textura-agency/next16-claude-starter/schema-markup"><img src="https://agentmods.dev/badge/skills/textura-agency/next16-claude-starter/schema-markup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 657 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00085 $0.00657
Opus 5 $0.00043 $0.00329
Sonnet 5 $0.00017 $0.00131
Haiku 4.5 $0.00009 $0.00066

Measured 12d ago against content hash 36e2b1441b35, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

schema-markup scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/schema-markup/SKILL.md · 53 lines

How it starts

The opening of the file, as written. The whole thing — 53 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Structured data (JSON-LD)

This project already has src/utils/seo/structured-data.tsgetSiteStructuredData() producing an Organization + WebSite graph, rendered once in the root layout. Extend that helper. Do not scatter inline <script type="application/ld+json"> tags through components.

Rules

  1. JSON-LD only — never microdata or RDFa (hard rule #10).
  2. Only describe what is on the page. Schema that claims content the page does not contain is spam, and Google treats it that way.
  3. Reference, don't duplicate. Build the graph with @id references between entities so the Organization is defined once and linked from everywhere.
  4. Values come from siteConfig (src/lib/site.ts) and from the page's own props — never hardcoded a second time.
  5. Validate: the JSON parses, required properties are present, URLs are absolute.

Types worth adding, by page kind

Page Type Required-ish properties
Home Organization, WebSite name, url, logo, sameAs
Local business LocalBusiness address, geo, openingHours, telephone
Blog post Article / BlogPosting headline, image, datePublished, dateModified, author
Service page Service serviceType, provider, areaServed
Product Product + Offer name, image, description, price, availability
FAQ block FAQPage mainEntity[] of Question/acceptedAnswer
Any nested page BreadcrumbList itemListElement with position
Team page Person per member name, jobTitle, image, worksFor

FAQPage earns its place twice over: it is the format both featured snippets and AI answer engines extract most reliably. If the page has a real FAQ section, mark it up — but the questions must be visible on the page, not schema-only.

Pattern

Add a typed builder per entity in structured-data.ts, compose into the graph, and keep the single render point in the root layout. When a page needs its own graph, export a generateStructuredData(props) from the view and render it there — still one script tag per page.

Read the full file on GitHub · 53 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 53 lines · 85 tokens per session scan A 36e2b1441b35

Subscribe to this mod's changes

schema-markup is a skill published in the GitHub repository textura-agency/next16-claude-starter (117 stars, last pushed 3d ago), licensed Unlicense. It adds 85 tokens to every session and 657 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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