# seo-agentic

Audits whether a site is ready for AI agents to browse and act. Use it for Lighthouse Agentic Browsing, llms.txt, WebMCP, robots.txt, and access checks.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 982 installs · ★ 21467
- Author: AgriciDaniel
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/AgriciDaniel/claude-seo/tree/HEAD/skills/seo-agentic/SKILL.md
- Updated: 2026-10-22
- HTML: https://affpapa.org/en/nevibecode/skills/seo-agentic

## What it does

The skill audits a site’s readiness for AI agents. It checks the Lighthouse Agentic Browsing result, the accessibility tree, server-rendered content, AI-agent groups in `robots.txt`, `Content-Signal`, `llms.txt`, Markdown delivery, `ai-catalog.json`, and documents under `/.well-known`. It also checks WebMCP markup and registered tools.

The workflow runs `lighthouse_agentic.py`, `agentic_check.py`, and `agent_ux_check.py` through `claude-seo`, keeping JSON output for the report. Modes cover a full audit, Lighthouse explanation, draft fixes, and a refresh of dated reference facts. A Google API key can avoid the shared Lighthouse quota. The `--ua-matrix` WAF check needs site control or explicit authorization, so do not run it against a third-party site without permission.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add AgriciDaniel/claude-seo --skill seo-agentic -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/seo-agentic/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/seo-agentic/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add AgriciDaniel/claude-seo --skill seo-agentic -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/seo-agentic/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add AgriciDaniel/claude-seo --skill seo-agentic -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/seo-agentic/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install AgriciDaniel/claude-seo seo-agentic
```

2. **Manually: put the files in place**
- File: `.github/skills/seo-agentic/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add AgriciDaniel/claude-seo --skill seo-agentic -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/AgriciDaniel/claude-seo --path skills/seo-agentic
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/seo-agentic/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add AgriciDaniel/claude-seo --skill seo-agentic -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/AgriciDaniel/claude-seo/tree/HEAD/skills/seo-agentic/SKILL.md

## When to use it
- audit a site for AI-agent access
- explain a Lighthouse Agentic Browsing result
- inspect `robots.txt` and `Content-Signal` rules
- check `llms.txt` and Markdown delivery
- draft fixes for WebMCP and `/.well-known` files

## Example prompts
- Run a full site audit with `/seo agentic <url>` and group the findings by priority.
- Explain the Lighthouse report from `<url or file.json>` with `/seo agentic lighthouse <url or file.json>`.
- Draft fixes for `robots.txt`, `llms.txt`, and WebMCP with `/seo agentic fix <url>`.

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: d42de98ffbd08c59.

BEGIN THIRD-PARTY FILE d42de98ffbd08c59
```text
---
name: seo-agentic
description: >
  Audit and fix agent readiness: the Lighthouse Agentic Browsing fraction,
  accessibility tree for agents, robots.txt and Content-Signal for AI agents,
  WAF treatment of agent traffic, llms.txt, Markdown delivery, ai-catalog.json,
  /.well-known discovery files, and WebMCP tools. Use when the user asks
  whether AI agents can use or browse the site, or about llms.txt or WebMCP.
  Exclude AI citability and brand signals (seo-geo) and commerce protocol
  depth (seo-ecommerce).
user-invocable: true
argument-hint: "[audit|fix|lighthouse|refresh] [url]"
license: MIT
metadata:
  author: AgriciDaniel
  version: "2.5.0"
  category: seo
---

# Agentic Browsing Readiness

Makes a site usable by AI agents that browse, fill forms and act for people
(ChatGPT's browser, Gemini in Chrome, Claude in Chrome, Comet, Edge), and
explains Google's Lighthouse **Agentic Browsing** result.

**The framing that survives every standards outcome:** agent readiness is
accessibility plus performance plus access policy, with a Markdown and
discovery layer on top. WebMCP is an optional enhancement for sites with forms
or transactions, not a foundation (WebKit opposes it, Mozilla is neutral, and
only ChatGPT desktop calls tools by default).

## Commands

| Command | What it does |
|---|---|
| `/seo agentic <url>` | Full agent-readiness audit (default mode) |
| `/seo agentic lighthouse <url or file.json>` | Explain the Lighthouse Agentic Browsing X/N result |
| `/seo agentic fix <url>` | Draft fixes: robots.txt Content-Signal, llms.txt, ai-catalog.json, WebMCP |
| `/seo agentic refresh` | Re-verify the dated facts in `references/vendor-matrix.md` |

## Audit process

Run the steps in this order and keep every tool's JSON for the report.

1. **Lighthouse fraction.**
   `"${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run lighthouse_agentic.py <url> --strategy both --json`.
   Uses PSI v5 (`category=AGENTIC_BROWSING`); a Google API key avoids the
   shared anonymous quota. With a saved report use `--from-json <file>`.
   Report the fraction as `X/N` exactly as computed. Never convert it to a
   percentage and never assume N: it is at most 6, and N/A and informative
   audits drop out. Read `references/lighthouse-agentic-category.md` before explaining it.
2. **HTTP and markup checks.**
   `"${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run agentic_check.py <url> --json`.
   Covers server-rendered content, robots.txt groups per AI agent and
   Content-Signal, llms.txt, Markdown delivery, ai-catalog.json, `/.well-known`
   documents, and WebMCP markup.
3. **Accessibility tree.**
   `"${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run agent_ux_check.py <url> --json`.
   A local 0-100 heuristic; present it separately from the Lighthouse fraction.
   Page-level criteria: `references/agent-friendly-pages.md`.
4. **WAF behaviour (only with authorization).** Add `--ua-matrix` to step 2
```
END THIRD-PARTY FILE d42de98ffbd08c59

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---
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