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 S3YED/appie-kit --skill seo-checklistgit clone --depth 1 https://github.com/S3YED/appie-kitWrote 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/s3yed/appie-kit/seo-checklist)<a href="https://agentmods.dev/skills/s3yed/appie-kit/seo-checklist"><img src="https://agentmods.dev/badge/skills/s3yed/appie-kit/seo-checklist/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/s3yed/appie-kit/seo-checklist"><img src="https://agentmods.dev/badge/skills/s3yed/appie-kit/seo-checklist.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 | $0.00028 | $0.01280 |
| Opus 5 | $0.00014 | $0.00640 |
| Sonnet 5 | $0.00006 | $0.00256 |
| Haiku 4.5 | $0.00003 | $0.00128 |
Grade A, and why
seo-checklist 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.
How it starts
The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SEO Checklist Skill
Purpose
Pre-publish on-page SEO checklist for every page or article on a Weblyfe site. Run this before hitting publish on any new page, blog post, or landing page. Based on the Tornado Masterclass "Zoekwoorden-checklist" visual from Seyed's course. Each item is a concrete, verifiable action.
Source
"SEO Checklist - On page optimalisatie" PDF from Seyed's Weblyfe University Tornado Masterclass (downloaded from Drive 2026-05-03).
Quick reference
| Element | Requirement |
|---|---|
| Title tag | Contains primary keyword |
| Meta description | Contains primary keyword |
| URL | SEO-friendly slug containing keyword |
| H1 | One H1, contains keyword |
| First paragraph | Keyword used at least once |
| Body text | Keyword appears multiple times naturally |
| Bold in first paragraph | Keyword printed bold at least once |
| H2/H3 subheadings | At least one subheading contains keyword |
| Featured image | Filename and alt-tag contain keyword |
| Content images | Filename and alt-tag contain keyword |
| Breadcrumb | Visible on page, keyword in trail |
| Media | At least one relevant image or video |
Core principles
- Title tag first. It is the highest-weight on-page signal. Keyword must appear in the title.
- "Hoe verder naar voren een woord staat, hoe meer waarde het van Google krijgt." - place keyword early in the title, not at the end.
- Meta description does not directly affect ranking but affects CTR. Write it to compel the click, with keyword included.
- One H1 per page. It should mirror or closely match the title tag with the keyword.
- Keyword in the first 100 words. Google weights early content more than later content.
- Keyword appears multiple times in body (laat je zoekwoord op meerdere plekken terugkomen) - naturally, not stuffed.
- Bold the keyword once in the first paragraph. This signals emphasis to both users and crawlers.
- Images carry SEO weight via filename and alt-tag. Both the featured image and in-content images should include the keyword.
- Breadcrumbs help Google understand site hierarchy and put the keyword in the navigation trail.
- Rich media (video, infographic) increases time-on-page and engagement - both indirect ranking signals.
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 · 86 lines · 28 tokens per session scan A 0a43acbf60be
seo-checklist is a skill published in the GitHub repository S3YED/appie-kit (9 stars, last pushed 17d ago), licensed MIT. It adds 28 tokens to every session and 1,280 once invoked, about $0.0001 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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