What if your code editor could do keyword research, audit your SEO, and optimize your content for AI search engines — without leaving VS Code? I built a set of open-source agent skills that turn GitHub Copilot into a hands-on marketing strategist. Here's what I learned, how they work, and how you can use (or build) your own. The problem I run a small website. Every time I wanted to write a blog post, the workflow looked like this: Open Ahrefs/Semrush → research keywords Open Google Docs → write the article Open WordPress → publish and fill in SEO fields Open ChatGPT → rewrite for social media Repeat Five tools. Five context switches. And every time, I found myself giving the same SEO instructions to AI assistants: "Use the keyword in the first paragraph", "Write a meta description under 155 characters", "Structure with H2/H3 headings"... What if I could encode all that knowledge once, and have my AI assistant apply it automatically?…