Guides
Practical, workflow-first articles: how to read a design system out of a live website, and how to give your coding agent a website it can actually rebuild.
How to read a website's design system by hand
October 28, 2026 · 3 minA practical method for recovering the real rules behind a design with DevTools, and where Mateo does the same work by capturing the page.
What is a DESIGN.md file, and how does it relate to the Rebuild Package?
October 28, 2026 · 2 minDESIGN.md is the design-language file in every Mateo capture. Here is what it holds, when to use it on its own, and when you want the full Rebuild Package.
Why Mateo captures from a live URL
October 28, 2026 · 2 minA screenshot shows how a page looks. A live page shows how it is built and how it behaves. Here is why Mateo captures from the URL.
How to use Mateo with Claude Code, Cursor or Codex
October 28, 2026 · 2 minExport the Rebuild Package, open it in your coding agent, paste the agent prompt, and let the agent validate its own build.
How to get more accurate results from Mateo
October 28, 2026 · 2 minPick the right page, read coverage and known gaps, recapture when coverage is Low, and give your agent answers to its questions.