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 url-structuregit 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/url-structure)<a href="https://agentmods.dev/skills/kostja94/marketing-skills/url-structure"><img src="https://agentmods.dev/badge/skills/kostja94/marketing-skills/url-structure/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/url-structure"><img src="https://agentmods.dev/badge/skills/kostja94/marketing-skills/url-structure.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- 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 | $0.00090 | $0.01230 |
| Opus 5 | $0.00045 | $0.00615 |
| Sonnet 5 | $0.00018 | $0.00246 |
| Haiku 4.5 | $0.00009 | $0.00123 |
Grade A, and why
url-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 7d 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:
- url-structure — 100% identical, 0 lines differ
- url-structure — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SEO On-Page: URL Structure
Guides URL structure optimization for SEO: readability, hierarchy, and best practices.
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)
- URL hierarchy: Path structure, categories, depth
- URL format: Static vs dynamic; omit file extensions
- URL slug: See url-slug-generator for slug creation (3–5 words, under 60 chars)
- Duplicate variants: See canonical-tag for HTTPS, www, trailing slash
Initial Assessment
Check for project context first: If .claude/project-context.md or .cursor/project-context.md exists, read it for site structure.
Identify:
- Site structure: Categories, subcategories, content types
- Current URLs: Existing patterns and issues
- Multi-language: URL structure for zh/en (e.g., /zh/, /en/ or subdomains)
Best Practices
URL Guidelines
| Principle | Guideline |
|---|---|
| Readable | Use words, not IDs; /blog/seo-guide not /p/12345 |
| Short | Shorter is generally better; avoid unnecessary depth |
| Keyword | Include target keyword when natural |
| Lowercase | Use lowercase; avoid mixed case |
| Hyphens | Use hyphens to separate words: seo-guide |
| Avoid | Special chars, query params for core content, session IDs |
Hierarchy
| Pattern | Example | Use |
|---|---|---|
| Flat | /page-name |
Simple sites |
| Category | /blog/post-name, /tools/tool-name |
Content sites |
| Nested | /category/subcategory/page |
Deep hierarchies (keep shallow) |
Multi-language
| Pattern | Example |
|---|---|
| Path prefix | /zh/page, /en/page |
| Subdomain | zh.example.com, en.example.com |
| ccTLD | example.cn, example.com |
Static vs Dynamic vs Pseudo-Static URLs
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.
- 7d ago First seen · 119 lines · 90 tokens per session scan A c011efa0f6d8
url-structure is a skill published in the GitHub repository kostja94/marketing-skills (963 stars, last pushed 3mo ago), licensed MIT. It adds 90 tokens to every session and 1,230 once invoked, about $0.0005 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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