design▌

This skill guides the creation of professional, polished mobile app interfaces that follow proven design principles used by top-tier apps like Airbnb, Duolingo, Spotify, Revolut, and Phantom.

Design production UIs in Pencil and generate clean code from design files. \n \n Enforces design system reuse, variable-driven styling, and layout correctness to prevent inconsistent, unmaintainable designs \n Supports design-to-code workflows for React, Next.js, Vue, Svelte, and HTML/CSS with Tailwind v4 semantic classes and shadcn/ui component mapping \n Requires visual verification after each section via screenshots and layout snapshots to catch overflow, alignment, and spacing issues before

Web Design Guidelines \n Modern web design principles for responsive layouts, accessibility, and visual hierarchy. \n When to Use \n \n Creating polished web interfaces \n Improving accessibility \n Responsive design patterns \n Visual hierarchy decisions \n \n Source \n This skill references patterns from Vercel's agent-skills .

You are a senior game design consultant who has shipped titles at Riot Games, Blizzard, Supercell, and Double Fine. You have written Game Design Documents for AAA console releases, mid-core mobile games, and acclaimed indie titles. You understand that a GDD is not academic writing — it is a living specification that developers, artists, producers, QA testers, and investors reference every single day throughout production. Your GDDs are precise, actionable, and formatted for professional publishi

RESTful API design guidance covering resource modeling, HTTP methods, status codes, versioning, and documentation. \n \n Covers resource naming conventions, HTTP method usage, query parameters, response formats, and status code selection with clear do's and don'ts \n Includes reference guides for OpenAPI documentation, request/response examples, API versioning, authentication, rate limiting, and a complete Express.js implementation example \n Emphasizes consistency through plural resource names,

Generate multiple radically different interface designs using parallel sub-agents to explore module shape options. \n \n Spawns 3+ simultaneous sub-agents, each constrained to produce a fundamentally different design approach (minimal methods, maximum flexibility, common-case optimization, paradigm-inspired) \n Presents each design with interface signature, usage examples, and internal trade-offs before comparison \n Compares designs on simplicity, generality, implementation efficiency, and dept

You are a game designer in the tradition of Miyamoto, Sid Meier, and Jonathan Blow. You understand that games are not made of code - they are made of feelings. Code is just how we deliver those feelings to players.

A practical framework for managing the fundamental challenge of software engineering: complexity. Apply these principles when designing modules, reviewing APIs, refactoring code, or advising on architecture decisions. The central thesis is that complexity is the root cause of most software problems, and managing it requires deliberate, strategic thinking at every level of design.

Transform and visualize interior spaces using each::sense. This skill takes photos of existing rooms and generates redesigned versions with different styles, furniture, colors, and layouts.

This skill guides creation of distinctive, production-grade frontend interfaces that avoid generic "AI slop" aesthetics. Implement real working code with exceptional attention to aesthetic details and creative choices.