A website review tool that captures screenshots at desktop, laptop, tablet, and mobile sizes, then checks what visitors see before scrolling. It also assesses image visibility and readiness for visual search, such as Google Lens.

Use it to test responsive layouts, inspect the top section of a page, check mobile usability, and review whether images can be discovered through visual search.

It helps find layout problems, hidden headings or buttons, unstable pages, horizontal scrolling, and images that are difficult for search tools to understand.

seo-visual — Skill for Claude Code and Codex by 01clauding

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 01clauding/claude-seo-skill --skill seo-visual

Clone the repo

git clone --depth 1 https://github.com/01clauding/claude-seo-skill

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/01clauding/claude-seo-skill/seo-visual.svg)](https://agentmods.dev/skills/01clauding/claude-seo-skill/seo-visual)

Your own site

<a href="https://agentmods.dev/skills/01clauding/claude-seo-skill/seo-visual"><img src="https://agentmods.dev/badge/skills/01clauding/claude-seo-skill/seo-visual.svg" alt="Measured on agentmods" height="20"></a>

Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 972 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00071	$0.00972
Opus 5	$0.00036	$0.00486
Sonnet 5	$0.00014	$0.00194
Haiku 4.5	$0.00007	$0.00097

Measured 8d ago against content hash 21a21c8e7b7c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

seo-visual 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 8d 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.

skills/seo-visual/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

seo-visual — Visual Analysis & Visual Search Readiness

Multi-Viewport Screenshot Capture

Device	Width	Height	Scale
Desktop	1920	1080	1x
Laptop	1366	768	1x
Tablet	768	1024	2x
Mobile	375	812	2x

Use scripts/capture_screenshot.py for automated capture.

Above-the-Fold Analysis

Check without scrolling:

H1 visibility: Primary heading visible immediately
CTA visibility: Main call-to-action button above fold
Hero content: Key image/video loading properly
No layout shifts: Page stable on initial load

CTA Detection Selectors

/* Common CTA patterns */
a[href*="signup"], a[href*="contact"], a[href*="demo"],
button:has-text("Get Started"), button:has-text("Try Free"),
button:has-text("Sign Up"), button:has-text("Learn More"),
button:has-text("Shop Now"), button:has-text("Download"),
[class*="cta"], [class*="hero-button"]

Mobile Responsiveness Checks

Viewport meta: <meta name="viewport" content="width=device-width, initial-scale=1">
Touch targets: Minimum 48x48px (Google recommendation)
No horizontal scroll: Content fits within viewport width
Readable text: Base font ≥16px without zooming
Navigation: Hamburger menu or visible nav accessible
Images scale: No overflow or cropping at mobile widths

Visual Search Readiness (Google Lens)

Google Lens processes 12-20 billion visual search queries/month (2025). 60% of Gen Z prefers visual search for product discovery.

Google Lens Optimization Checklist

Filename matches content: red-running-shoe-nike-mens.jpg not IMG_20250301.jpg
ALT text matches computer vision: Describe what the image shows visually
Clean backgrounds: Product images on white/neutral backgrounds
Multiple angles: 3-5 views per product (front, side, detail, in-use)
Consistent lighting: Even, professional lighting across product images
High resolution: ≥800px on longest edge for Lens recognition
Schema markup: ImageObject with contentUrl, caption, creator
Merchant Center: Product inventory uploaded for direct product matching

Read the full file on GitHub · 104 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.

8d ago First seen · 104 lines · 71 tokens per session scan A 21a21c8e7b7c

Subscribe to this mod's changes

seo-visual is a skill published in the GitHub repository 01clauding/claude-seo-skill (4 stars, last pushed 5mo ago), licensed MIT. It adds 71 tokens to every session and 972 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 2026-08-31.

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