seo-fundamentals

seo-fundamentals is a skill for Claude Code from DDS-Solutions/AI-TadPole-OS. It costs 31 tokens per session (1,193 once invoked), scanned A, a copy of seo-fundamentals, MIT.

A guide to improving how websites appear in search engines, covering site structure, trust signals, and loading and interaction performance. SEO means search engine optimisation.

In plain words
What is it for?
Use it to review sitemaps, robots.txt, canonical tags, HTTPS, page speed, and Core Web Vitals.
Why use it?
It helps identify changes that can make pages easier for search engines to crawl and easier for people to use.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to review sitemaps, robots.txt, canonical tags, HTTPS, page speed, and Core Web Vitals.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dds-solutions/ai-tadpole-os/seo-fundamentals
Install

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.

Any agent
npx skills add DDS-Solutions/AI-TadPole-OS --skill seo-fundamentals
Clone the repo
git clone --depth 1 https://github.com/DDS-Solutions/AI-TadPole-OS

Made for: Claude Code.

Wrote 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.

agentmods badge for seo-fundamentals

README.md
[![agentmods](https://agentmods.dev/badge/skills/dds-solutions/ai-tadpole-os/seo-fundamentals/github.svg)](https://agentmods.dev/skills/dds-solutions/ai-tadpole-os/seo-fundamentals)
Your own site
<a href="https://agentmods.dev/skills/dds-solutions/ai-tadpole-os/seo-fundamentals"><img src="https://agentmods.dev/badge/skills/dds-solutions/ai-tadpole-os/seo-fundamentals/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.

agentmods 80×15 button for seo-fundamentals

Your own site · 80×15
<a href="https://agentmods.dev/skills/dds-solutions/ai-tadpole-os/seo-fundamentals"><img src="https://agentmods.dev/badge/skills/dds-solutions/ai-tadpole-os/seo-fundamentals.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,193 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 91% copy Near-identical to another mod in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00031 $0.01193
Opus 5.5 $0.00012 $0.00477
Sonnet 5.5 $0.00006 $0.00239
Haiku 4.5 $0.00003 $0.00119

Measured 12d ago against content hash 319a9a325556, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

seo-fundamentals 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 12d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/seo_checker.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

This is a copy

91% identical to seo-fundamentals — 153 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agent/skills/seo-fundamentals/SKILL.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.

[!IMPORTANT] AI Context & Knowledge Heritage

  • Subsystem: Agent Skills Registry / seo-fundamentals
  • Architecture: @docs ARCHITECTURE:Documentation
  • Failure Path: Missing canonical URLs, duplicate H1 headers, absent OpenGraph cards, or unindexed pages.
  • Observability: Traceability via execution/parity_guard.py ([SKILL])

SEO Fundamentals & Semantic Web Standards

Philosophy: Built-in accessibility and semantic HTML are the bedrock of modern SEO. Search visibility requires technical correctness, E-E-A-T authority, and fast Core Web Vitals.
Workflow Bindings: Integrated into /create, /ui-ux-pro-max, and /audit.


🎯 Progressive Disclosure & L3 Reference Index

Read the core Sovereign rules below; consult deep L3 Reference Guides on demand:

L3 Reference Guide Purpose Trigger / When to Load
references/seo_metadata_and_structured_data.md JSON-LD schema definitions, OpenGraph card tags, robots.txt, and XML sitemaps Implementing site metadata & schema markup
scripts/seo_checker.py Automated static auditor for title tags, meta descriptions, image alts, and single H1 tags Verifying public web pages and route templates

📐 1. Technical SEO Core Rules

  1. Strict Heading Hierarchy: Exactly one <h1> per page. Follow natural descending order (h1 ➔ h2 ➔ h3). Never skip levels for styling.
  2. Mandatory Meta Headers: Every page requires unique <title>, <meta name="description">, and <link rel="canonical">.
  3. Image Alt Attributes: Every <img> tag must include a descriptive, meaningful alt attribute (decorative images must use alt="" aria-hidden="true").
  4. Structured Data: Inject JSON-LD Schema.org blocks for SoftwareApplication, Article, Organization, or FAQ pages.

Read the full file on GitHub · 87 lines

Files

What ships with it

2 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.

Changes

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.

  1. 12d ago Changed · -50 lines · +7 tokens per session 319a9a325556
  2. 1mo ago First seen · 137 lines · 24 tokens per session scan A 0088500fdf36

Subscribe to this mod's changes

seo-fundamentals is a skill published in the GitHub repository DDS-Solutions/AI-TadPole-OS (8 stars, last pushed today), licensed MIT. It adds 31 tokens to every session and 1,193 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 91% identical to seo-fundamentals, differing in 153 lines, and is treated as a copy.

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