DeFi

Core concepts for building LangGraph applications. Use when creating StateGraph workflows, defining nodes and edges, managing state with TypedDict/Pydantic, or understanding basic graph structure. Covers state schemas, reducers, node functions, edge types (normal, conditional), and graph compilation.

Design and implement visual regression testing for UI changes. Definesscreenshot coverage, rendering stabilization, baseline management, and CIintegration (e.g., Playwright screenshots, Percy/Chromatic). Use whenUI/styling/layout changes need protection against regressions, or when addingscreenshot-based tests to a web/WASM/desktop UI.

Use when creating ongoing animations - loading spinners, pulsing indicators, ambient motion, background effects, or any animation that repeats indefinitely.

Develop HTTP APIs, middleware, error codes, and i18n strings using the ginx framework conventions. Use when creating or modifying APIs in apis/, defining error codes, adding i18n strings, or when the user asks to follow project conventions for HTTP endpoints, routes, middleware, or error handling.

Creates risk-based test plans and strategies. Use when planning testing, defining test scope, or documenting QA approach.

生成和管理 TypeScript 类型定义，确保类型安全

Generate Consensus Day distribution pay schedules for Ëtrid, allocating ÉTR among peers and directors by predefined percentages.

Define UI tokens, accessibility rules, and consistent component behavior for the Astro frontend, plus empty/loading/error states and light hover/focus transitions. Use when adding or refining frontend UX polish and documentation under frontend/ in this repo.

Design API endpoints, schemas, and contracts. Use when defining public interfaces or data models.

Reference the project's defined technology stack including frameworks, languages, databases, testing tools, and deployment infrastructure. Use this skill when making technology decisions or choosing libraries. When working with project configuration files like package.json, requirements.txt, or Gemfile. When setting up new features that need to align with existing technology choices. When onboarding to understand the project's technical foundation. When choosing tools for testing, linting, CI/CD, or third-party services.

Generate diagrams and flowcharts from mermaid definitions using the mermaid-cli (mmdc). Supports themes, custom CSS, and various output formats including SVG, PNG, and PDF. Mermaid supports 20+ diagram types including flowcharts, sequence diagrams, class diagrams, state diagrams, entity relationship diagrams, user journeys, Gantt charts, pie charts, quadrant charts, requirement diagrams, GitGraph, C4 diagrams, mindmaps, timelines, ZenUML, Sankey diagrams, XY charts, block diagrams, packet diagrams, Kanban boards, architecture diagrams, radar charts, and treemaps. This skill is triggered when the user says things like "create a diagram", "make a flowchart", "generate a sequence diagram", "create a mermaid chart", "visualize this as a diagram", "render mermaid code", or "create an architecture diagram".

Structure React 19+ components following best practices for organization, state management, props handling, and code readability with top-down structure and single responsibility principle. Use this skill when creating new React components, refactoring existing components, organizing component logic, managing component state, defining prop interfaces (IComponentProps with I prefix), or implementing component patterns. Apply when working on React component files (*.tsx, *.jsx), Shadcn/ui components, or any frontend component implementations. This skill ensures predictable top-down structure (imports → types/interfaces → component → hooks → derived values → JSX), proper props destructuring with defaults in function signature, manageable component size (split at >300 lines), composition via Shadcn Slot pattern (asChild prop), React 19 patterns (use() hook for promises, useActionState for forms, useOptimistic for immediate feedback), no manual useMemo/useCallback (React Compiler handles memoization), Server Compo

Complete mastery of essential modern web development libraries and dependencies. Cover Next.js, React, TypeScript, Tailwind CSS, Firebase, Zustand, redux-toolkit, react-hook-form, Zod, shadcn/ui, lucide-react, Stripe, and more. Learn setup, integration patterns, advanced usage, performance optimization, troubleshooting, common pitfalls, and version management. Includes quick reference guides, in-depth tutorials, complete examples for e-commerce and SaaS, configuration files, type definitions, error handling, and production patterns. Master how libraries work together and solve real-world challenges.

Updates skills during project work according to their contracts. Adds references, improves explanations, and refines examples while respecting skill boundaries. Use when discovering patterns, encountering edge cases, or finding better ways to explain skill concepts. Works with skills that have Skill Contracts defined by skill-contract-generator.

Defines project-wide code conventions for magic number elimination, constant usage, performance optimization, and type safety. Use when implementing, testing, or reviewing code to ensure consistency across the codebase.

PostgreSQL schema design with SQLModel. Use when designing database schemas, creating ERDs, defining models, planning migrations, or reviewing table structures. Triggers on tasks involving database tables, relationships, indexes, or data modeling for PostgreSQL.

Guide for authoring, designing, building, writing, and developing specialized AI agents. Use when creating, updating, reviewing, or improving agents that handle specific tasks with focused expertise. Helps design AGENT.md files, choose models (Sonnet/Haiku/Opus), define focus areas, configure tool restrictions, and decide between agents, skills, and commands. Expert in agent validation, best practices, and troubleshooting.

Use when designing database schemas from business requirements, translating vague requirements into concrete SQL definitions, or validating database designs with non-technical stakeholders. Provides a systematic methodology that decouples logical business modeling from physical implementation to reduce cognitive load and ensure business-driven design.

Define database models, schemas, and ORM mappings with proper relationships, constraints, and data integrity rules. Use this skill when creating or modifying ORM model classes, database schema definitions, model relationships, validators, or working with files like models.py, schema.prisma, entity classes, or Sequelize/TypeORM/ActiveRecord model definitions. Apply this skill when defining primary keys, foreign keys, indexes, unique constraints, timestamps, or when implementing model validation logic, serializers, and data type mappings. This skill ensures models follow naming conventions, include appropriate database constraints, define clear relationships with cascade behaviors, balance normalization with performance needs, and maintain data integrity at both the model and database levels.

Generate structured LaTeX exam cheat sheets from course materials. Extracts key concepts, definitions, formulas from PDFs, Jupyter notebooks, and markdown files. Compiles to PDF with error checking.