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.
npx skills add marketingskills/seo --skill seo-content-briefgit clone --depth 1 https://github.com/marketingskills/seoWrote 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.
[](https://agentmods.dev/skills/marketingskills/seo/seo-content-brief)<a href="https://agentmods.dev/skills/marketingskills/seo/seo-content-brief"><img src="https://agentmods.dev/badge/skills/marketingskills/seo/seo-content-brief/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.
<a href="https://agentmods.dev/skills/marketingskills/seo/seo-content-brief"><img src="https://agentmods.dev/badge/skills/marketingskills/seo/seo-content-brief.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00039 | $0.00301 |
| Opus 5.5 | $0.00016 | $0.00120 |
| Sonnet 5.5 | $0.00008 | $0.00060 |
| Haiku 4.5 | $0.00004 | $0.00030 |
Grade A, and why
seo-content-brief 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 1mo 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.
What it actually says
SEO Content Brief
Overview
Produce a detailed content brief for a new page targeting a specific keyword or topic. The brief covers search intent analysis, key entities, content outline, internal link suggestions, and technical SEO recommendations.
Inputs
- Target keyword or topic
- Optional: target URL path, target audience notes
Workflow
- Search the target keyword and analyze the top 5-10 organic results.
- Determine the dominant search intent: informational, commercial, navigational, or transactional.
- Analyze each top result for:
- Content format (guide, list, comparison, tool, etc.)
- Sections and headings used
- Entities covered (people, places, concepts, tools)
- Content depth (word count, media, data)
- SERP features present
- Identify content gaps: what the top results miss.
- Write the brief with:
- Target query and secondary keywords
- Recommended title and meta description
- Content outline with H2/H3 structure
- Key entities to include
- Internal link opportunities (from existing site content)
- Schema type recommendation
- Word count target and format recommendation
Output
Structured content brief ready for a writer.
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.
- 1mo ago First seen · 40 lines · 39 tokens per session scan A e399c05e9056
seo-content-brief is a skill published in the GitHub repository marketingskills/seo (8 stars, last pushed 1mo ago), licensed MIT. It adds 39 tokens to every session and 301 once invoked, about $0.0002 per session on Opus 5.5. 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.
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