SEO Landing

An agent skill that gives an AI coding agent the habits of a senior technical SEO engineer when it builds landing pages. The target is a 100/100 Google PageSpeed score with Core Web Vitals optimization, and the skill enforces a set of key requirements while the agent writes and improves a page. A section of lab measurements shows a real-world result, with a note that these are lab numbers and not field Core Web Vitals. It follows the open Agent Skills format, so it works in VS Code Copilot, Claude Code, OpenAI Codex, Google Antigravity, Cursor, Gemini CLI, OpenClaw and Hermes. Installation can be global or per project, with an idempotent update that removes files deleted upstream, and a way to verify and uninstall copies. MIT licensed, free to use, modify and distribute, including commercially.