Design: skills, rules and MCP servers
Design for Claude Code, Codex and Cursor: skills, subagents, rules and MCP servers, from popular to niche.
Design skills teach the agent the visual side of the job: typography, spacing, motion, brand rules, SVG and Figma layouts. The official anthropics/skills repository includes frontend-design and brand-guidelines, for example. A good skill in this topic contains actual numbers (a type scale, animation durations, a palette) instead of vague requests to make things look nice. If a skill works from mockups, check whether it also needs an MCP server to reach Figma.