What is seo-content-writer?

A writing assistant for creating search-friendly content while keeping a consistent brand voice. It covers articles, social posts, emails, landing pages, and product descriptions.

It helps analyze existing writing, define voice guidelines, add keywords naturally, improve headings and internal links, and assess readability.

It removes much of the manual work involved in balancing readable writing, search terms, page structure, and a consistent tone.

seo-content-writer — Skill for Claude Code and Codex by thatrebeccarae

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 thatrebeccarae/claude-marketing --skill seo-content-writer

Clone the repo

git clone --depth 1 https://github.com/thatrebeccarae/claude-marketing

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/thatrebeccarae/claude-marketing/seo-content-writer/github.svg)](https://agentmods.dev/skills/thatrebeccarae/claude-marketing/seo-content-writer)

Your own site

<a href="https://agentmods.dev/skills/thatrebeccarae/claude-marketing/seo-content-writer"><img src="https://agentmods.dev/badge/skills/thatrebeccarae/claude-marketing/seo-content-writer/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/thatrebeccarae/claude-marketing/seo-content-writer"><img src="https://agentmods.dev/badge/skills/thatrebeccarae/claude-marketing/seo-content-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,055 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	$0.00044	$0.01055
Opus 5	$0.00022	$0.00528
Sonnet 5	$0.00009	$0.00211
Haiku 4.5	$0.00004	$0.00105

Measured 9d ago against content hash 91de1f7df90a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

seo-content-writer 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 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.

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-content-writer/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create SEO-optimized content with consistent brand voice across platforms.

Install

git clone https://github.com/thatrebeccarae/claude-marketing.git && cp -r claude-marketing/skills/seo-content-writer ~/.claude/skills/

Core Capabilities

Brand Voice Development

Analyze existing content for voice characteristics
Define personality archetypes and tone attributes
Build voice consistency guidelines
Create sample voice documents for team alignment

SEO Optimization

Keyword research and natural integration
Title tag and meta description optimization
Header hierarchy (H1-H4) structure
Internal linking strategy
Content depth recommendations by type
Readability scoring (Flesch-Kincaid, Gunning Fog)

Content Frameworks

Blog posts: how-to, listicle, thought leadership, case study, comparison
Social media: LinkedIn, Twitter/X, Instagram
Email marketing: subject lines, preview text, body copy
Landing pages: hero, features, social proof, CTA
Product descriptions: benefit-driven, SEO-optimized

Workflow

1. Define Voice (if not established)

Ask the user for 3-5 examples of content they like. Analyze for:

Tone (formal ↔ casual)
Perspective (first person, second person, third person)
Vocabulary level (technical ↔ accessible)
Sentence structure (short/punchy ↔ flowing/complex)
Personality traits (authoritative, friendly, provocative, empathetic)

2. Research Keywords

For SEO content:

Identify primary keyword (1) and secondary keywords (3-5)
Check search intent (informational, transactional, navigational)
Note competing content and gaps
Plan header structure around keyword clusters

3. Draft Content

Follow the appropriate framework from REFERENCE.md. Ensure:

Primary keyword in title, H1, first 100 words, and meta description
Secondary keywords distributed naturally through H2s and body
Readability at appropriate level for the audience
Clear CTA aligned with content goal

Read the full file on GitHub · 110 lines

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.

9d ago First seen · 110 lines · 44 tokens per session scan A 91de1f7df90a

Subscribe to this mod's changes

seo-content-writer is a skill published in the GitHub repository thatrebeccarae/claude-marketing (137 stars, last pushed 4mo ago), licensed MIT. It adds 44 tokens to every session and 1,055 once invoked, about $0.0002 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 2026-09-03.