Design and analyze business models using the Business Model Canvas framework. Use when evaluating startups, planning new products, pivoting existing businesses, or understanding how companies create and capture value.

Guides Tailwind CSS v4 patterns for buttons and components. Use this skill when creating components with variants, choosing between CVA/tailwind-variants, or configuring Tailwind v4's CSS-first approach.

Guides when to abstract vs duplicate code. Use this skill when creating shared utilities, deciding between DRY/WET approaches, or refactoring existing abstractions.

Apply cognitive bias knowledge to product design and decision-making. Use when designing user experiences, analyzing user behavior, improving conversions, or ensuring ethical design practices.

Apply cognitive fluency principles to improve clarity, trust, and conversion. Use when designing landing pages, writing copy, creating interfaces, or optimizing any content for better user comprehension and engagement.

Design experiences that optimize mental resources using Cognitive Load Theory. Use when designing interfaces, creating onboarding flows, planning information architecture, or improving task completion rates.

Create engagement through strategic information gaps that drive user action. Use when designing notifications, writing headlines, planning onboarding flows, or creating content that needs to capture and hold attention.

Conduct root cause analysis using the Five Whys technique. Use when investigating problems, debugging issues, understanding failures, analyzing churn, or finding the underlying cause of any issue.

Design behavior change using the B=MAP framework. Use when designing onboarding flows, improving conversion, building habits, increasing feature adoption, or understanding why users don't take desired actions.

Optimize decision-making speed by managing choice quantity. Use when designing navigation, menus, feature sets, onboarding flows, or any interface where users must choose between options.

Structure complex questions into testable hypotheses. Use when validating product ideas, debugging problems, planning experiments, or breaking down ambiguous challenges into actionable research.

Visualize and optimize workflow with Kanban boards. Use when managing team work, identifying bottlenecks, improving delivery flow, or implementing continuous improvement in product development.

Leverage loss aversion in product design and messaging. Use when designing retention features, pricing strategies, onboarding flows, or any experience where framing around potential loss can drive behavior.

Framework for structured product decision-making. Use when facing complex tradeoffs, aligning stakeholders, documenting decisions, or choosing between multiple valid approaches.

Apply language-agnostic naming conventions using the A/HC/LC pattern. Use when naming variables, functions, or reviewing code for naming consistency.

Implement art direction for Next.js images using getImageProps(). Use when showing different images for different viewport sizes, such as homepage carousels with mobile vs desktop assets, different cropping/composition, or when mobile and desktop images differ completely.

Reduce complexity by revealing information progressively. Use when designing onboarding, complex forms, feature-rich interfaces, or any experience where showing everything at once would overwhelm users.

Guides proper usage of the key prop in React lists. Use this skill when rendering lists, mapping arrays to components, or troubleshooting list-related state bugs.

Guides proper usage of the useCallback hook in React. Use this skill when optimizing function references, passing callbacks to memoized components, or preventing unnecessary re-renders.

Guides proper usage of "use client" directive in React/Next.js. Use this skill when adding client components, troubleshooting Server Component errors, or deciding where to place the client boundary.