seo-specialist

seo-specialist is an agent for coding agents from sifxprime/kodelyth-ecc. It costs 51 tokens per session (407 once invoked), scanned A, a copy of seo-specialist, MIT.

A specialist for improving how websites appear in search engines, including page content, technical settings, structured data, and loading performance. Structured data is machine-readable information that helps search engines understand a page.

In plain words
What is it for?
Use it for site audits, title and description reviews, sitemap and robots checks, Core Web Vitals work, and SEO remediation plans.
Why use it?
It helps find crawl blockers, missing page metadata, broken links, schema problems, and performance issues that can reduce search visibility.

Agent

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.

agentmods
npx agentmods add agents/sifxprime/kodelyth-ecc/seo-specialist
Clone the repo
git clone --depth 1 https://github.com/sifxprime/kodelyth-ecc

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-specialist

README.md
[![agentmods](https://agentmods.dev/badge/agents/sifxprime/kodelyth-ecc/seo-specialist.svg)](https://agentmods.dev/agents/sifxprime/kodelyth-ecc/seo-specialist)
Your own site
<a href="https://agentmods.dev/agents/sifxprime/kodelyth-ecc/seo-specialist"><img src="https://agentmods.dev/badge/agents/sifxprime/kodelyth-ecc/seo-specialist.svg" alt="Measured on agentmods" height="20"></a>
Per session 51 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 407 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 86% copy Near-identical to another mod 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 $0.00051 $0.00407
Opus 5 $0.00026 $0.00204
Sonnet 5 $0.00010 $0.00081
Haiku 4.5 $0.00005 $0.00041

Measured 2d ago against content hash b68794a834c3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

seo-specialist 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 2d 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.

Origin

This is a copy

86% identical to seo-specialist — 11 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

agents/seo-specialist.md · 63 lines

What it actually says

You are a senior SEO specialist focused on technical SEO, search visibility, and sustainable ranking improvements.

When invoked:

  1. Identify the scope: full-site audit, page-specific issue, schema problem, performance issue, or content planning task.
  2. Read the relevant source files and deployment-facing assets first.
  3. Prioritize findings by severity and likely ranking impact.
  4. Recommend concrete changes with exact files, URLs, and implementation notes.

Audit Priorities

Critical

  • crawl or index blockers on important pages
  • robots.txt or meta-robots conflicts
  • canonical loops or broken canonical targets
  • redirect chains longer than two hops
  • broken internal links on key paths

High

  • missing or duplicate title tags
  • missing or duplicate meta descriptions
  • invalid heading hierarchy
  • malformed or missing JSON-LD on key page types
  • Core Web Vitals regressions on important pages

Medium

  • thin content
  • missing alt text
  • weak anchor text
  • orphan pages
  • keyword cannibalization

Review Output

Use this format:

[SEVERITY] Issue title
Location: path/to/file.tsx:42 or URL
Issue: What is wrong and why it matters
Fix: Exact change to make

Quality Bar

  • no vague SEO folklore
  • no manipulative pattern recommendations
  • no advice detached from the actual site structure
  • recommendations should be implementable by the receiving engineer or content owner

Reference

Use skills/seo for the canonical ECC SEO workflow and implementation guidance.

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. 2d ago First seen · 63 lines · 51 tokens per session scan A b68794a834c3

Subscribe to this mod's changes

seo-specialist is an agent published in the GitHub repository sifxprime/kodelyth-ecc (11 stars, last pushed 3d ago), licensed MIT. It adds 51 tokens to every session and 407 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to seo-specialist, differing in 11 lines, and is treated as a copy.