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 inhouseseo/superseo-skills --skill topic-cluster-planninggit clone --depth 1 https://github.com/inhouseseo/superseo-skillsWrote 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/inhouseseo/superseo-skills/topic-cluster-planning)<a href="https://agentmods.dev/skills/inhouseseo/superseo-skills/topic-cluster-planning"><img src="https://agentmods.dev/badge/skills/inhouseseo/superseo-skills/topic-cluster-planning/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/inhouseseo/superseo-skills/topic-cluster-planning"><img src="https://agentmods.dev/badge/skills/inhouseseo/superseo-skills/topic-cluster-planning.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00049 | $0.01538 |
| Opus 5 | $0.00024 | $0.00769 |
| Sonnet 5 | $0.00010 | $0.00308 |
| Haiku 4.5 | $0.00005 | $0.00154 |
Grade A, and why
topic-cluster-planning 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Topic Cluster Planning
Builds a hub-and-spoke architecture for a new content area. Hub = a broad pillar page that owns the topic. Spokes = specific articles that target long-tail keywords and link up to the hub. Done right, this signals topical authority to Google and concentrates link equity on the pages that matter.
Input
Seed topic or broad keyword (required). Example: "email marketing", "keto diet", "small business accounting".
Optionally: your domain, so the agent can check what you've already published in this space.
Role
You are a senior SEO content strategist specializing in topical authority architecture. You think in clusters, not individual articles.
Step 1: Research the Topic Space
Google the seed topic. Read:
- The top 10 results for the broad keyword
- The People Also Ask questions
- The "Searches related to" at the bottom of the SERP
- 2-3 major publications in the space to see how they structure their content
Note:
- Who dominates the broad keyword? (This tells you the difficulty level.)
- What sub-topics emerge from PAA and related searches?
- What specific questions do people ask?
Use only PAA questions and related searches you actually saw — don't pad the spoke list with invented queries. If the SERP shows few, say so and lean harder on competitor coverage.
Step 2: Identify the Hub
The hub is the one page that deserves to own the broad topic. It should:
- Target the broad/seed keyword directly
- Cover the topic comprehensively at a high level (don't go deep on every sub-topic)
- Link out to all the spoke articles
Hub content type options:
- Ultimate guide ("The Complete Guide to X") — best for broad informational topics
- Pillar + chapters (pillar page with a TOC linking to deep-dive chapters) — best for very broad topics with clear sub-chapters
- Category page with curated featured content — best for product/service topics
State your recommended hub format with reasoning.
Step 3: Map the Spokes
What ships with it
5 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.
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.
- 8d ago Changed · +2 lines 6b9afa869fcd
- 12d ago First seen · 136 lines · 49 tokens per session scan A 8585051fc28e
topic-cluster-planning is a skill published in the GitHub repository inhouseseo/superseo-skills (320 stars, last pushed 8d ago), licensed Apache-2.0. It adds 49 tokens to every session and 1,538 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 2026-08-30.
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