What problem does it solve? Designing and reviewing user-facing flows often misses recurring interaction failures: permanent loading skeletons, lost drafts, silent optimistic-mutation failures, and dead-end success screens. This Skill provides LobeHub's design values and per-module execution checklists so those gaps are caught systematically when building or reviewing any UI surface. ## Core Features & Use Cases - Design values & interaction principles: Four product design values (Natural, Meaningful, Certainty, Growth) plus principles like preserving the surface contract and composing canonical components. - Five checklist modules: Read (data states, lists at scale, pickers, number formatting), Edit (draft protection), Act (flow momentum, button hierarchy, entity lifecycle, secrets), Feedback (loading visuals, failure paths, capability guardrails), and Grow (progressive disclosure, multi-step flows). - Use Case: When implementing a paginated list with search, use the Read module to verify error states render before empty states, search queries the full dataset server-side, and selections scroll into view. ## Quick Start Use the ux skill to review this new settings page flow for missing empty, loading, and error states.