區塊鏈

Create System Requirements (SYS) - Layer 6 artifact defining functional requirements and quality attributes

Analyzes bull-call-spread debit spreads for bullish directional plays with defined risk. Requires numpy>=1.24.0, pandas>=2.0.0, matplotlib>=3.7.0, scipy>=1.10.0. Use when expecting moderate price increase, comparing vertical spread configurations, analyzing debit spread opportunities, calculating Greeks for multi-leg positions, or evaluating defined-risk bullish strategies on liquid optionable securities.

UI theme system, design tokens, Material-UI patterns, and accessibility standards. Handles theme customization, component styling, design system patterns, and accessibility features. Use when working with UI components, theme customization, design system patterns, or accessibility features, or when user mentions Material-UI, MUI components, theme tokens, dark mode, component styling, design system, accessibility, layout issues, styling problems, or ARIA patterns.

Guide implementation of OAuth 2.1 / OIDC authentication using Better Auth with the OIDC Provider plugin. Use this skill when setting up centralized authentication for multiple apps, implementing SSO across a platform, creating an OAuth authorization server, or integrating Better Auth as an identity provider. Covers PKCE for public clients, JWKS configuration, token management, email verification, and common pitfalls like preserving PKCE parameters during sign-in redirects.

Transform raw research into actionable insights that inform design decisions. Use during Define phase after completing research.

Build a design system from scratch using the Design Graph methodology. Use when starting a component library, creating design tokens, establishing typography scales, or structuring a theme. Based on Brent Jackson's (jxnblk) constraint-based systems.

gRPC and Protocol Buffers - use for service-to-service communication, API definitions, streaming, and inter-service contracts

Pure Bun-native filesystem utilities from @sidequest/core/fs. Use when you need command-injection-safe filesystem operations, prefer Bun over node:fs, or want token-efficient fs helpers. All functions use Bun.spawn, Bun.file(), or Bun.write() - no node:fs dependencies.

Set up or update RadTools design system from Figma. Use ONLY for initial design system import (colors, typography, spacing tokens) or when syncing design system updates from Figma. NOT for building pages or components from Figma designs - those use Figma MCP directly with existing RadTools tokens.

Write clear, testable requirements using User Stories and Gherkin scenarios. Capture functional and non-functional requirements with proper acceptance criteria. Use when defining new features or documenting system behavior. Trigger keywords: requirements, user stories, acceptance criteria, Gherkin, BDD, specifications, feature definition

Use when working with JSON Schema for validation, OpenAPI schemas, type definitions, and data structure specification

Define and enforce error budgets and SLO guardrails; use when asked to balance velocity with reliability targets.

Master smart contract security best practices to prevent common vulnerabilities and implement secure Solidity patterns. Use when writing smart contracts, auditing existing contracts, or implementing security measures for blockchain applications.

Reviews Claude configuration files for security, structure, and prompt engineering quality. Use when reviewing changes to CLAUDE.md files (project-level or .claude/), skills (SKILL.md), agents, prompts, commands, or settings. Validates YAML frontmatter, progressive disclosure patterns, token efficiency, and security best practices. Detects critical issues like committed settings.local.json, hardcoded secrets, malformed YAML, broken file references, oversized skill files, and insecure agent tool access.

Defines coding standards, test patterns, and language conventions for this project. Use this when writing code, comments, documentation, or git commit messages.

Master Web3 frontend development with wallet integration, viem/wagmi, and dApp UX

Expert guidance for Domain-Driven Design architecture and implementation. Use when designing complex business systems, defining bounded contexts, structuring domain models, choosing between modular monolith vs microservices, implementing aggregates/entities/value objects, or when users mention "DDD", "domain-driven design", "bounded context", "aggregate", "domain model", "ubiquitous language", "event storming", "context mapping", "domain events", "anemic domain model", strategic design, tactical patterns, or domain modeling. Helps make architectural decisions, identify subdomains, design aggregates, and avoid common DDD pitfalls.

Apply when designing RESTful APIs, defining endpoints, HTTP methods, status codes, and response formats.

Measure quality effectively with actionable metrics. Use when establishing quality dashboards, defining KPIs, or evaluating test effectiveness.

Defines context handover format when workers hit turn limit. Posts structured handover to GitHub issue comments enabling replacement workers to continue seamlessly.