seo-technical

seo-technical is an agent for Claude Code from ZachArticulateV/designer-pro-and-seo. It costs 98 tokens per session (1,253 once invoked), scanned A, original, MIT.

An automated technical SEO review for a website URL or local HTML file. SEO, or search-engine optimization, includes the page and server settings that affect discovery, indexing, and presentation in search results.

In plain words
What is it for?
Use it to inspect crawlability, indexability, mobile markup, security headers, structured data presence, JavaScript rendering, and Core Web Vitals targets. It groups findings by urgency and gives a specific fix for each.
Why use it?
It finds common technical problems in one review, such as missing page metadata, broken canonical settings, inaccessible images, mixed content, or unsuitable crawler rules. It distinguishes lab checks from real-world performance measurements.

Agent for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable. Also seen: model in frontmatter.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the designer-pro-and-seo plugin — 41 skills, 14 agents, 1 MCP server shipped together

Good fit Use it to inspect crawlability, indexability, mobile markup, security headers, structured data presence, JavaScript rendering, and Core Web Vitals targets. It groups findings by urgency and gives a specific fix for each.

Compare 6 agents from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add ZachArticulateV/designer-pro-and-seo
Claude Code
/plugin install designer-pro-and-seo

Made for: Claude Code.

Or install designer-pro-and-seo, the plugin that ships this one along with the rest of its 41 skills, 14 agents, 1 MCP server.

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 seo-technical

README.md
[![agentmods](https://agentmods.dev/badge/agents/zacharticulatev/designer-pro-and-seo/seo-technical/github.svg)](https://agentmods.dev/agents/zacharticulatev/designer-pro-and-seo/seo-technical)
Your own site
<a href="https://agentmods.dev/agents/zacharticulatev/designer-pro-and-seo/seo-technical"><img src="https://agentmods.dev/badge/agents/zacharticulatev/designer-pro-and-seo/seo-technical/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 seo-technical

Your own site · 80×15
<a href="https://agentmods.dev/agents/zacharticulatev/designer-pro-and-seo/seo-technical"><img src="https://agentmods.dev/badge/agents/zacharticulatev/designer-pro-and-seo/seo-technical.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 98 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,253 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00098 $0.01253
Opus 5 $0.00049 $0.00626
Sonnet 5 $0.00020 $0.00251
Haiku 4.5 $0.00010 $0.00125

Measured 11d ago against content hash 83ab7cc7eef1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

seo-technical 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 11d 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.

agents/seo-technical.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

seo-technical (dispatched-leaf agent)

Wraps: skills/seo-technical/SKILL.md — same method, no forked logic.

Method

The technical spine of SEO: run the bundled script on a URL (or local HTML), then interpret the result across 9 dimensions, deferring real field CWV to seo-google and deep structured-data work to seo-schema (prose cross-references — not calls).

python3 "${CLAUDE_PLUGIN_ROOT}/scripts/seo/tech_audit.py" --url <URL> --human     # or --file page.html

It checks title/meta, h1, canonical, meta-robots noindex, viewport, lang, structured-data presence, image alt coverage, mixed content, and — when it can fetch — security headers and the robots.txt AI-crawler policy. Group findings Critical / High / Medium / Info, each with a specific fix. Core Web Vitals targets: LCP < 2.5s, CLS < 0.1, INP < 200ms (INP, not FID). Synthetic tools cannot measure field CWV — never synthesize a field number; emit the lab targets + a needs_tier1 note and route to seo-google if the user has Google access.

Capability routing

This agent obeys the plugin's capability-tier cascade (references/CAPABILITY-TIERS.md), identical to the seo-technical skill it wraps. It never fails — the built-in Tier 2 is the product.

Read the full file on GitHub · 91 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. 11d ago First seen · 91 lines · 98 tokens per session scan A 83ab7cc7eef1

Subscribe to this mod's changes

seo-technical is an agent published in the GitHub repository ZachArticulateV/designer-pro-and-seo (8 stars, last pushed 2mo ago), licensed MIT. It adds 98 tokens to every session and 1,253 once invoked, about $0.0005 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.