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 bugrabilge/bilge-development-kit --skill seo-fundamentalsgit clone --depth 1 https://github.com/bugrabilge/bilge-development-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/bugrabilge/bilge-development-kit/seo-fundamentals)<a href="https://agentmods.dev/skills/bugrabilge/bilge-development-kit/seo-fundamentals"><img src="https://agentmods.dev/badge/skills/bugrabilge/bilge-development-kit/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.
<a href="https://agentmods.dev/skills/bugrabilge/bilge-development-kit/seo-fundamentals"><img src="https://agentmods.dev/badge/skills/bugrabilge/bilge-development-kit/seo-fundamentals.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 | $0.00032 | $0.01910 |
| Opus 5 | $0.00016 | $0.00955 |
| Sonnet 5 | $0.00006 | $0.00382 |
| Haiku 4.5 | $0.00003 | $0.00191 |
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 5d 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 — 197 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SEO Fundamentals
"The best place to hide a dead body is page 2 of Google search results." -- SEO proverb
When to Use
- Optimizing web pages for search engine visibility and ranking
- Implementing meta tags, Open Graph, and structured data
- Improving Core Web Vitals and page performance
- Conducting technical SEO audits
- Planning content strategy for organic search traffic
- Implementing SEO in single-page applications (SPA) and server-rendered apps
- Setting up sitemaps, robots.txt, and canonical URLs
Essential Meta Tags
Title and Description
- Title tag: 50-60 characters, primary keyword near the front, unique per page
- Meta description: 150-160 characters, compelling call-to-action, include target keyword
- Every page must have a unique title and description
- Avoid keyword stuffing; write for humans, optimize for search
Open Graph (Social Sharing)
<meta property="og:title" content="Page Title" />
<meta property="og:description" content="Compelling description for social" />
<meta property="og:image" content="https://example.com/og-image.jpg" />
<meta property="og:url" content="https://example.com/page" />
<meta property="og:type" content="website" />
<meta property="og:site_name" content="Site Name" />
Twitter Card
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:title" content="Page Title" />
<meta name="twitter:description" content="Description for Twitter" />
<meta name="twitter:image" content="https://example.com/twitter-image.jpg" />
Essential Technical Meta Tags
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="robots" content="index, follow" />
<link rel="canonical" href="https://example.com/canonical-url" />
<html lang="en">
Structured Data (Schema.org)
Why Structured Data Matters
- Enables rich results (stars, prices, FAQs, breadcrumbs) in search results
- Helps search engines understand page content semantically
- Increases click-through rates with enhanced SERP features
- Critical for voice search and AI answer generation
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.
- 5d ago First seen · 197 lines · 32 tokens per session scan A 489a8c46237a
seo-fundamentals is a skill published in the GitHub repository bugrabilge/bilge-development-kit (10 stars, last pushed 4mo ago), licensed MIT. It adds 32 tokens to every session and 1,910 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 2026-09-03.
Other skills, from other repositories
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
local-ai-agents
Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…
next-cache-components-adoption
Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…
next-cache-components-optimizer
Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…
next-partial-prefetching-adoption
Turn on Partial Prefetching in a Next.js app and work through the insights it surfaces. Use when the user wants to enable or adopt Partial Prefetching, flip the partialPrefetching flag, opt routes in with export const prefetch = 'partial', audit Link prefetch={true} behavior, preserve existing prefetched UI with…
chronicle
Analyze Copilot session history for standup reports, usage tips, session search, and session reindexing. Use when the user asks for a standup, daily summary, usage tips, workflow recommendations, wants to search or find past sessions by keyword/file/PR, wants to reindex their session store, or asks about deleting…