Design

Generates a research-grade Product Requirements Document (PRD) defining problems, goals, scope, constraints, and success criteria. Use when creating or updating a PRD for a product or major initiative.

Write comprehensive unit tests for Visual Layout Builder using Vitest. Use when creating tests for lib/ functions, schema validation, canvas utilities, or any business logic. Follows AAA pattern and project testing conventions.

Guide for creating and validating Claude Code plugin.json files with schema validation tools

Skip unnecessary CI/CD operations before execution. Detect unchanged content, cached builds, and irrelevant paths to reduce workflow costs and execution time.

Systematic design optimization for young-personal-site following established design principles.Ensures consistent color palette, responsive layout, and professional appearance.

Provides Git workflow guidance for branching, committing, merging, and creating pull requests. Use when creating commits, making PRs, managing branches, resolving conflicts, or asking about Git workflow.

Enforces the standard development workflow for the fund-portfolio-bot project: read docs first, propose a small scoped design, respect version scope, and limit code changes. Use when implementing, modifying, or refactoring functionality in this repository.

Build and deploy Apify actors for web scraping and automation. Use for serverless scraping, data extraction, browser automation, and API integrations with Python.

Comprehensive validation of FTD analysis output files. Checks JSONL format, field completeness, score validity, and structural requirements for TALD scale evaluations.

Transfer conversation to human agent. Use when customer explicitly requests human support, issue is too complex, customer is frustrated, or situation requires human judgment.

This skill should be used when managing documentation files in an Obsidian vault, including creating session artifacts, moving planning documents from project directories to the vault, updating document lifecycle states (active → processed → archived), searching for documents by tags or content, and automating archival of old documents. Integrates with task-startup/task-wrapup workflows for any coding project.

Expert guidance for DeepAgents framework - simplified agent creation with tool integration for LangChain/LangGraph workflows.

Guide experienced developers through RED phase of TDD cycle - writing failing tests

Build truly responsive SPA, MPA, or landing pages that adapt gracefully from foldable phones (280px) to ultra-wide desktops (2560px+). Use when the user asks to create responsive websites, landing pages, mobile-first designs, or any web interface requiring broad device support. Generates semantic HTML5, mobile-first CSS with fluid typography, CSS Grid/Flexbox layouts, accessible navigation with hamburger menus, and responsive images with srcset/lazy loading.

Guide for implementing Next.js - a React framework for production with server-side rendering, static generation, and modern web features. Use when building Next.js applications, implementing App Router, working with server components, data fetching, routing, or optimizing performance.

Collaborative brainstorming partner for multi-session ideation projects. Use when the user wants to brainstorm, ideate, explore ideas, or think through problems—whether for SaaS products, software tools, book ideas, newsletter content, business strategies, or any creative/analytical challenge. Handles session continuity across days/weeks via versioned markdown documents. Includes brainstorming methods catalog and supports both connected (cross-project awareness) and clean-slate modes.

Comprehensive Ruby development skill covering language fundamentals, object-oriented design patterns, error handling strategies, performance optimization, modern Ruby 3.x features (pattern matching, ractors, typed Ruby), testing patterns, metaprogramming, concurrency, and Rails-specific best practices. Use when writing Ruby code, refactoring, implementing design patterns, handling exceptions, optimizing performance, writing tests, or applying Ruby idioms and conventions.

Core development patterns and architecture for PepMetrics. Use when building features or understanding the codebase.

Generate comprehensive implementation guides for coding tasks instead of writing code directly. Use when the user requests detailed implementation documentation, step-by-step development guides, or when they want to implement features themselves using tools like Cursor. Creates exhaustive guides with background context, architecture decisions, milestones with verification points, and rationale for a "build-it-yourself" workflow.

Implement robust error handling with user-friendly messages, proper exception types, and graceful degradation. Use this skill when writing try-catch blocks, defining custom exceptions, or handling failures from external services. When implementing retry strategies, cleaning up resources, or designing centralized error handling. When validating preconditions or failing fast with clear error messages.