Alvaro Cintas(@dr_cintas):This 𝗗𝗘𝗦𝗜𝗚𝗡.𝗺𝗱 stops Claude Code and Codex from 𝘀𝗵𝗶𝗽𝗽𝗶𝗻𝗴 𝗴𝗲𝗻𝗲𝗿𝗶𝗰 𝗔𝗜 𝗨𝗜. It's Google's open format. Stitch reads it natively. Claude Code and Codex read it once you add one line to AGENTS .md: "Read DESIGN .md before any UI work." Tokens on top, rules below: → Overview → Colors → Typography → Layout → Elevation & Depth → Shapes → Components → Do's and Don'ts The agent stops inventing a new color and spacing value on each screen, so 𝗲𝘃𝗲𝗿𝘆 𝘀𝗰𝗿𝗲𝗲𝗻 𝗹𝗼𝗼𝗸𝘀 𝗹𝗶𝗸𝗲 𝘁𝗵𝗲 𝘀𝗮𝗺𝗲 𝗽𝗿𝗼𝗱𝘂𝗰𝘁. Claude Code users: also install the official frontend plugin: /plugin install frontend-design@claude-plugins-official Check your file against the spec: npx @google/design.md lint DESIGN .md Copy and paste it into your DESIGN .md 👇

2026.10.03 20:33

This 𝗗𝗘𝗦𝗜𝗚𝗡.𝗺𝗱 stops Claude Code and Codex from 𝘀𝗵𝗶𝗽𝗽𝗶𝗻𝗴 𝗴𝗲𝗻𝗲𝗿𝗶𝗰 𝗔𝗜 𝗨𝗜. It's Google's open format. Stitch reads it natively. Claude Code and Codex read it once you add one line to AGENTS .md: "Read DESIGN .md before any UI work." Tokens on top, rules below: → Overview → Colors → Typography → Layout → Elevation & Depth → Shapes → Components → Do's and Don'ts The agent stops inventing a new color and spacing value on each screen, so 𝗲𝘃𝗲𝗿𝘆 𝘀𝗰𝗿𝗲𝗲𝗻 𝗹𝗼𝗼𝗸𝘀 𝗹𝗶𝗸𝗲 𝘁𝗵𝗲 𝘀𝗮𝗺𝗲 𝗽𝗿𝗼𝗱𝘂𝗰𝘁. Claude Code users: also install the official frontend plugin: /plugin install frontend-design@claude-plugins-official Check your file against the spec: npx @google/design.md lint DESIGN .md Copy and paste it into your DESIGN .md 👇