rc-seo

rc-seo is a skill for Claude Code from rodolfochicone/rc-project. It costs 83 tokens per session (477 once invoked), scanned A, original, MIT.

A set of guides for auditing and improving search-engine visibility, including page markup, indexing, content, and large-scale page generation.

In plain words
What is it for?
Use it for technical SEO audits, on-page content improvements, and SEO work across many generated pages.
Why use it?
It provides checks for finding SEO problems instead of guessing why pages are not appearing or ranking in search results.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: model in frontmatter.

Part of the rc plugin — 32 skills, 2 commands, 4 agents, 5 hooks shipped together

Good fit Use it for technical SEO audits, on-page content improvements, and SEO work across many generated pages.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rodolfochicone/rc-project/rc-seo
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 rodolfochicone/rc-project --skill rc-seo
Clone the repo
git clone --depth 1 https://github.com/rodolfochicone/rc-project

Made for: Claude Code.

Or install rc, the plugin that ships this one along with the rest of its 32 skills, 2 commands, 4 agents, 5 hooks.

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 rc-seo

README.md
[![agentmods](https://agentmods.dev/badge/skills/rodolfochicone/rc-project/rc-seo/github.svg)](https://agentmods.dev/skills/rodolfochicone/rc-project/rc-seo)
Your own site
<a href="https://agentmods.dev/skills/rodolfochicone/rc-project/rc-seo"><img src="https://agentmods.dev/badge/skills/rodolfochicone/rc-project/rc-seo/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 rc-seo

Your own site · 80×15
<a href="https://agentmods.dev/skills/rodolfochicone/rc-project/rc-seo"><img src="https://agentmods.dev/badge/skills/rodolfochicone/rc-project/rc-seo.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 83 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 477 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00083 $0.00477
Opus 5 $0.00042 $0.00238
Sonnet 5 $0.00017 $0.00095
Haiku 4.5 $0.00008 $0.00048

Measured 9d ago against content hash 677213239225, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

rc-seo scanned grade A with 1 finding 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 9d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **Meça, não adivinhe.** Verifique com comandos/ferramentas reais (curl, o HTML renderizado, Search Console) antes de afirmar um problema.
skills/misc/rc-seo/SKILL.md · 34 lines

What it actually says

SEO — guias por tarefa

Guias práticos de SEO. Leia o guia da tarefa em references/ antes de agir — cada um traz o checklist, os comandos de verificação e os critérios de aceite. Ao auditar um projeto real, combine com Grep/Glob para inspecionar o HTML/templates gerados; não presuma o markup.

Roteamento

Tarefa Guia
Auditoria técnica (crawl, index, tags, structured data, CWV) references/technical.md
Otimização on-page e de conteúdo (keyword, intent, copy) references/on-page.md
SEO programático / páginas em escala references/programmatic.md

Princípios sempre válidos

  • Uma intenção por página. Cada URL responde a uma intenção de busca clara. Duas intenções → duas páginas.
  • Índice antes de rank. Uma página não ranqueia se não for rastreada e indexada. Resolva crawl/index primeiro.
  • Conteúdo > truque. Nenhuma tag conserta conteúdo que não satisfaz a intenção. Otimização técnica é piso, não teto.
  • Meça, não adivinhe. Verifique com comandos/ferramentas reais (curl, o HTML renderizado, Search Console) antes de afirmar um problema.

Error Handling

  • Sem acesso ao site em produção: audite os templates/HTML no repo e diga explicitamente que a verificação é estática (sem CWV de campo nem status de indexação real).
  • Se o site depende de renderização client-side (SPA), sinalize que o crawler pode ver HTML vazio — verifique o HTML servido, não só o DOM.
Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 9d ago First seen · 34 lines · 83 tokens per session scan A 677213239225

Subscribe to this mod's changes

rc-seo is a skill published in the GitHub repository rodolfochicone/rc-project (19 stars, last pushed 1mo ago), licensed MIT. It adds 83 tokens to every session and 477 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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