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 agentmods add skills/holger1411/astrodeck/content-seonpx skills add holger1411/astrodeck --skill content-seogit clone --depth 1 https://github.com/holger1411/astrodeckWrote 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/holger1411/astrodeck/content-seo)<a href="https://agentmods.dev/skills/holger1411/astrodeck/content-seo"><img src="https://agentmods.dev/badge/skills/holger1411/astrodeck/content-seo.svg" alt="Measured on agentmods" 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 | $0.00031 | $0.01238 |
| Opus 5 | $0.00015 | $0.00619 |
| Sonnet 5 | $0.00006 | $0.00248 |
| Haiku 4.5 | $0.00003 | $0.00124 |
Grade A, and why
content-seo 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 6d 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 — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Content & SEO Skill
Canonical Sources
This skill references the following globals — read them BEFORE starting work:
system/globals/imagery.md— Alt text conventions, image formats
Domain
Content Collections, Meta Tags, OpenGraph, Structured Data, RSS, Sitemap
KPIs
| Metric | Target | Measurement |
|---|---|---|
| Lighthouse SEO | >90 | Lighthouse JSON → categories.seo.score * 100 |
| Pages without Description | 0 | npm run check:kpis |
| Pages without OG-Image | 0 | HTML check in dist/ |
Rules
Content Collections Schema
// src/content.config.ts
import { defineCollection } from 'astro:content';
import { z } from 'astro/zod';
import { glob } from 'astro/loaders';
const blog = defineCollection({
loader: glob({ pattern: '**/*.{md,mdx}', base: './src/content/blog' }),
schema: z.object({
title: z.string(),
description: z.string().max(160),
pubDate: z.coerce.date(),
updatedDate: z.coerce.date().optional(),
heroImage: z.string().optional(),
draft: z.boolean().default(false),
tags: z.array(z.string()).default([]),
author: z.string().default('Team'),
}),
});
SEO Component Usage
---
import BaseLayout from '@/layouts/BaseLayout.astro';
const title = "Page Title — Brand Name";
const description = "Page description, 150-160 characters, relevant keyword at the start.";
---
<BaseLayout title={title} description={description}>
<!-- Content -->
</BaseLayout>
Meta-Description Best Practices
- Length: 150-160 characters (Google truncates at ~160)
- Keyword: Relevant keyword at the beginning
- Unique: Every page needs its own description
- Actionable: Call-to-action or value proposition
- No duplicates: Never the same description for multiple pages
OpenGraph Tags
<meta property="og:title" content="{title}" />
<meta property="og:description" content="{description}" />
<meta property="og:image" content="{siteUrl}/og-image.png" />
<meta property="og:url" content="{canonicalUrl}" />
<meta property="og:type" content="website" />
<meta property="og:site_name" content="{siteName}" />
What ships with it
1 file 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.
- 6d ago First seen · 182 lines · 31 tokens per session scan A 8a11dda3ebb7
content-seo is a skill published in the GitHub repository holger1411/astrodeck (74 stars, last pushed today), licensed MIT. It adds 31 tokens to every session and 1,238 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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