Skill UI

This framework analyzes foundational design principles—such as affordances, signifiers, and conceptual models—to create products that are highly intuitive and discoverable. It guides analysis by bridging the 'Gulf of Execution' and the 'Gulf of Evaluation.' Use this when diagnosing confusing user interfaces, poor usability, or needing to ensure a product is robustly human-centered and easy to understand.

This framework outlines the 'Hook Model' (Trigger, Action, Variable Reward, Investment) for building deeply engaging, habit-forming product loops. It guides designers in optimizing user retention, understanding behavioral psychology, and structuring product features to move users from deliberate usage to automatic, routine behavior. Use it for onboarding, feature design, and improving long-term user stickiness.

This framework provides a systematic guide for evaluating and improving user interface usability based on established heuristic principles. It covers core concepts like 'Don't Make Me Think' and 'Get Rid of Half the Words,' helping users conduct detailed usability audits, analyze navigation flow, and optimize copy. Use this when reviewing a product's user experience, addressing user confusion, or performing a formal UX review to enhance clarity and efficiency.

This comprehensive guide provides principles for selecting, pairing, and implementing typefaces for optimal web readability. It covers advanced topics such as line height optimization, responsive typography, CSS implementation, and performance best practices. Use this when focusing on improving content legibility for long-form articles, dashboards, or general UI systems.

Guides frontend designer-engineers to deliver memorable, production-ready interfaces by defining an aesthetic stance, scoring feasibility with DFII, and translating every intentional decision into code, typography, motion, and texture.

This skill acts as a Visual Psychologist and Environmental Researcher, guiding the systematic mapping of visual elements—including color, typography, spacing, and imagery—to desired emotional states and conversion goals. It ensures that design decisions are strategic, supporting persuasion and brand narrative rather than merely being decorative. Use it when you need visuals to evoke a specific feeling (e.g., trust, urgency, calm) for a defined target audience, while respecting cultural and accessibility constraints.

A configuration-driven frontend approach that enforces premium UI rules, deterministic typography, responsive grids, and structured interaction states to override default LLM biases for polished interfaces.

Guides designers through using the Penpot MCP tools to craft professional UI/UX for web, mobile, and desktop apps, covering workflows, design systems, accessibility checks, and setup/troubleshooting steps for the Penpot MCP server.

This skill scaffolds a complete, cohesive, mobile-first page structure, ensuring consistency across the entire application. It guides the user to define the page's core purpose, apply the Information Pyramid, and compose the layout using established design systems and existing components (shell, navigation, cards). It is ideal for starting new product flows or developing new screens while maintaining professional structural integrity and mobile-first best practices.

This skill provides a deep audit of user experience (UX) and usability, going beyond basic visual checks. It systematically evaluates screens, flows, and components against Nielsen's 10 usability heuristics and modern mobile best practices. Use it when you need to identify structural flaws, cognitive load issues, or navigation regressions in a product design, providing prioritized issues, violated heuristics, and concrete remediation steps.

Inspects live or staging websites to spot layout, responsive, and accessibility issues, then traces those problems to source files for targeted fixes, making it ideal for developers and designers reviewing static sites, SPAs, or full-stack apps.

Generates professional infographics by describing your idea, combining Nano Banana Pro AI generation with Gemini 3 Pro quality review and optional Perplexity Sonar research to ensure accurate, publication-ready visuals for marketing, reports, social, or internal use.