Design

This skill should be used when the user asks to "analyze DBF files", "read DBF data", "query DBF database", "convert DBF to Parquet", "analyze Thai accounting data", "explore legacy database", "run DuckDB queries on DBF", or mentions DBF, Parquet conversion, or Thai legacy accounting systems. Provides comprehensive guidance for reading, converting, and analyzing Thai legacy DBF accounting databases.

AUTOMATICALLY enforces world-class software engineering principles for every line of code written. Validates architecture, design patterns, file size limits, code structure, and engineering best practices. USE THIS SKILL AUTOMATICALLY when writing ANY code, creating components, implementing features, or refactoring. Also use when user asks to review architecture, check design patterns, ensure best practices, validate code structure, or improve code quality.

Query the China Biographical Database (CBDB) API to retrieve comprehensive biographical data about historical Chinese figures. Use this skill when searching for information about Chinese historical figures, scholars, officials, or literary figures from the 7th century BCE through the 19th century CE. Applicable for queries about biographical details, social relationships, official positions, or when users mention specific Chinese names or CBDB person IDs.

This skill should be used when adding new restaurant features across the full stack (Backend → Shared → Web → Mobile).Trigger keywords: "레스토랑 검색/필터/정렬 추가", "restaurant search/filter/sort", "레스토랑 API 수정", "restaurant list UI 업데이트".Provides step-by-step workflow for database migrations, backend API updates, shared layer updates, and frontend UI implementation.

Implement Stripe payment processing for robust, PCI-compliant payment flows including checkout, subscriptions, and webhooks. Use when integrating Stripe payments, building subscription systems, or implementing secure checkout flows.

Test-Driven Development guidance. Use during feature-dev Phase 5 (Implementation) or any code implementation. Ensures tests are written BEFORE implementation code, following Red-Green-Refactor cycle.

Designing Slash Commands for Claude Code. Create and optimize slash commands with proper argument parsing, tool permissions, and agent orchestration. Use when building workflow entry points, automation commands, or user-facing shortcuts.

Audit and refactor CSS to comply with Game Loopers design system and BEM methodology

Generate comprehensive philosophy and standards documents for any domain (UX design, landing pages, email outbound, API design, etc.). Load when user says "create philosophy doc", "generate standards for [domain]", "build best practices guide", or "create benchmarking document". Conducts deep research, synthesizes findings, and produces structured philosophy documents with principles, frameworks, anti-patterns, checklists, case studies, and metrics.

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.

Update documentation files based on recent changes while enforcing project writing guidelines.

Guide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation, proposals, technical specs, decision docs, or similar structured content. This workflow helps users efficiently transfer context, refine content through iteration, and verify the doc works for readers. Trigger when user mentions writing docs, creating proposals, drafting specs, or similar documentation tasks.

ESLint, Prettier, and StyleLint configuration standards for JavaScript code quality and formatting, including flat config setup, rule management, and build integration

Assistant for creating, editing, and debugging reactive Python notebooks with marimo. Use when you need to build marimo notebooks, debug reactive execution, add interactive UI elements, or convert traditional notebooks to marimo format. Provides code patterns, utility functions, and best practices for marimo development.

Discover relevant skills and knowledge using tiered approach. SKIP for simple tasks, QUICK for single-skill, STANDARD for multi-skill, DEEP for full feature implementation. Auto-selects tier based on task complexity.

Expert guidance for Angular development with modern patterns

Full-stack Swift application with shared library, Hummingbird backend, WebUI frontend, and SwiftUI apps

Use when writing API routes, workers, or backend services. Layers on TOP of your base guideline. Covers validation, error handling, async patterns, and architecture enforcement.

Build and maintain the people registry from context over time, tracking names, roles, teams, and expertise as they appear in documents. Use when processing documents that mention people or when updating people profiles.

Triage a production incident with safe, minimal changes and rollback guidance.