Handoff bundle, Claude Design → Claude Code packagé
Pattern de handoff design→dev formalisé en bundle structuré : (1) Design assets (Figma file URL ou export Frames), (2) Spec sheet (DESIGN.md frontmatter + body), (3) Tokens layer (DTCG json + resolvers), (4) Components Manifests (typés pour MCP), (5) Validation criteria (a11y targets, browser support, performance budget). Le bundle est versionné, daté, signé. Inspiré du workflow Anthropic Claude Design + Figma Make kits.