Frontend

Generate React components following DevPortfolio patterns with automatic scaffolding. Use when asked to create components, generate UI elements, scaffold new features, or create React components. Generates TypeScript components with proper structure, translations, tests, and animations.

World-class data science skill for statistical modeling, experimentation, causal inference, and advanced analytics. Expertise in Python (NumPy, Pandas, Scikit-learn), R, SQL, statistical methods, A/B testing, time series, and business intelligence. Includes experiment design, feature engineering, model evaluation, and stakeholder communication. Use when designing experiments, building predictive models, performing causal analysis, or driving data-driven decisions.

Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, or applications. Generates creative, polished code that avoids generic AI aesthetics.

Java best practices guide based on Effective Java. Use when reviewing Java code, discussing design patterns, object creation, equals/hashCode, Optional, Stream API, exception handling, or concurrency. Applies Joshua Bloch's principles.

Quarterly OKR review with key results scoring, progress tracking, and next quarter planning

Deploy the shot-client-next frontend to Fly.io using RAILS BACKEND configuration (shot-client-next app). Use this skill ONLY when specifically deploying to the legacy Rails backend at shot-counter.fly.dev.

Runs automated HTML linting using @axe-core/playwright (WCAG accessibility) and markuplint (HTML standards). Use when user asks to "lint HTML", "run automated checks", "validate HTML", "check accessibility", or mentions "axe-core", "markuplint", "automated audit".

Generates detailed, step-by-step implementation plans for React/Next.js components based on component lists from plan-based-components and optional UI design images. Creates actionable task lists with file paths, dependencies, implementation details, and verification checklists. Use when users want specific implementation guidance for building components.

Browser automation and end-to-end testing. Use when user wants to test web applications, automate browser interactions, scrape web content, or verify UI functionality across browsers.

Systematic code review guidelines and checklist. Use this skill when reviewing code, conducting pull request reviews, or establishing code quality standards. Provides comprehensive review criteria covering functionality, design, testing, security, and documentation. Complements the code-quality agent.

Security requirements, threats, and controls that apply across this system.

Model core domain concepts for the widget host app: entities, value objects, aggregates, invariants, and domain services. Use when defining the domain layer, enforcing rules, or refactoring business logic out of UI/application layers.

Verify Tetris architecture compliance with coding rules and design patterns. Use when reviewing code, implementing features, refactoring, or validating architectural decisions. Auto-triggers on phrases like "review this code", "check architecture", "is this correct?", "refactor this", or "implement feature". Checks for prohibited patterns (classes, enums, any types, hardcoded strings) and required patterns (functional programming, Result type, proper imports).

Comprehensive Rust development guidelines based on 6 months of code reviews. Use when writing Rust code, debugging Rust issues, or reviewing Rust PRs. Covers error handling, file I/O safety, type safety patterns, performance optimization, common footguns, and fundamental best practices. Perfect for both new and experienced Rust developers working on CLI tools, hooks, or production code.

Generate comprehensive multi-approach strategies before execution. Extract domain knowledge, create alternative approaches, identify failure modes, and develop risk-aware plans. Use proactively for complex tasks requiring strategic thinking or when multiple approaches might succeed.

This skill should be used when breaking down frontend feature requirements into parallelizable work items (API clients, UI components, and integration tasks) with clear dependencies. Particularly useful for creating structured work breakdowns with Mermaid diagrams and organizing tasks for team development.

Build native Rust ML models with Candle framework. Use when implementing vision transformers, LLMs, or audio models with GPU acceleration.

Use when claims lack multi-method validation, need stronger causality demonstration, or require in vivo confirmation - establishes evidence hierarchy from single-method to CNS-level multi-approach validation

Build browser extensions with WXT framework, Manifest V3, and TypeScript.Use when: creating Chrome extension, Firefox addon, browser plugin.Triggers: "extension", "browser extension", "chrome extension", "firefox addon", "manifest v3", "wxt".

Expert glossary builder who creates comprehensive definitions and descriptions for all terms in a taxonomy. Your goal is to produce clear, accurate, and contextually appropriate definitions that help users understand each concept.