Layers – AI skills for deep product design, available as open-source package for Claude Code, Cursor, and other AI tools

Jamie Mill released Layers, a framework that breaks product design into seven layers across three zones, packaged as skills executable in AI coding assistants (Claude Code, Cursor, OpenAI Codex, and 50+ others) via `npx skills add jamiemill/layers-skills`.

Skills capture design decisions as markdown and mermaid diagrams—job stories, strategy trees, object maps, and decision inventories—rather than visual mockups, and can write directly to Linear, Notion, Figma, or GitHub via MCP connection.

A `/layers-orient` skill audits all seven layers to identify which one is the design bottleneck; users can then run targeted skills like `/layers-user-needs`, `/layers-conceptual-model`, or `/layers-interaction-flow` to make specific design decisions.

Code and framework documentation are open source at github.com/jamiemill/layers-skills.