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 kostja94/marketing-skills --skill headinggit clone --depth 1 https://github.com/kostja94/marketing-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/kostja94/marketing-skills/heading)<a href="https://agentmods.dev/skills/kostja94/marketing-skills/heading"><img src="https://agentmods.dev/badge/skills/kostja94/marketing-skills/heading/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/kostja94/marketing-skills/heading"><img src="https://agentmods.dev/badge/skills/kostja94/marketing-skills/heading.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 | $0.00083 | $0.00773 |
| Opus 5 | $0.00042 | $0.00387 |
| Sonnet 5 | $0.00017 | $0.00155 |
| Haiku 4.5 | $0.00008 | $0.00077 |
Grade A, and why
heading-structure 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.
Copies of this mod
2 near-identical copies found in the catalogue:
- heading-structure — 100% identical, 0 lines differ
- heading-structure — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SEO On-Page: Heading Structure
Guides heading (H1-H6) optimization for SEO and content structure.
When invoking: On first use, if helpful, open with 1-2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.
Scope (On-Page SEO)
- H1 tag: One per page; clear headline; matches content; primary keyword near start
- Header tags (H1-H6): Logical hierarchy; keyword in headers; one idea per heading
Initial Assessment
Check for project context first: If .claude/project-context.md or .cursor/project-context.md exists, read it for target keywords.
Identify:
- Page type: Homepage, article, product, etc.
- Primary keyword: Target search query
- Content outline: Main sections and subsections
Best Practices
H1
| Principle | Guideline |
|---|---|
| One per page | Single H1 per page |
| Primary keyword | Include target keyword naturally |
| Descriptive | Clearly describe page content |
| Match intent | Align with title tag and user intent |
H2-H6 Hierarchy
| Principle | Guideline |
|---|---|
| Logical order | H1 -> H2 -> H3; don't skip levels |
| One idea per heading | Each heading = one topic |
| Scannable | Headings should summarize section content |
| Keyword variation | Use related keywords in subheadings |
Structure
H1 (page title)
-> H2 (section 1)
-> H3 (subsection)
-> H3
-> H2 (section 2)
-> H3
-> H2 (section 3)
Common Issues
| Issue | Fix |
|---|---|
| Multiple H1s | Use single H1; use H2 for other sections |
| Skipped levels | Use H2 after H1, H3 after H2 |
| Generic headings | Make descriptive; avoid "Introduction," "Conclusion" |
| Keyword stuffing | Natural language; avoid forced keywords |
Output Format
- H1 recommendation (with keyword)
- H2-H6 outline for content
- Hierarchy check
- References: Google headings
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 · 85 lines · 83 tokens per session scan A d41eb49853a1
heading-structure is a skill published in the GitHub repository kostja94/marketing-skills (967 stars, last pushed 3mo ago), licensed MIT. It adds 83 tokens to every session and 773 once invoked, about $0.0004 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.
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