Types
Type checking and type generation
spec-audit
by commontoolsinc
Map and verify the CTS/schema documentation corpus against its normative contracts, implementation, tests, fixtures, and runtime consumers. Use for claim-level audits or updates in docs/specs/ts-transformer, docs/specs/schema-generator, package guidance, and author-facing CTS docs, especially after transformer/schema changes or before releases.
pattern-debug
by commontoolsinc
Debug pattern errors systematically
pattern-schema
by commontoolsinc
Design schemas.tsx with Input/Output types for patterns
mcp-builder
by einverne
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
cloudflare
by einverne
Guide for building applications on Cloudflare's edge platform. Use when implementing serverless functions (Workers), edge databases (D1), storage (R2, KV), real-time apps (Durable Objects), AI features (Workers AI, AI Gateway), static sites (Pages), or any edge computing solutions.
cloudflare-workers
by einverne
Comprehensive guide for building serverless applications with Cloudflare Workers. Use when developing Workers, configuring bindings, implementing runtime APIs, testing Workers, using Wrangler CLI, deploying to production, or building edge functions with JavaScript/TypeScript/Python/Rust.
coding-standards
by williamzujkowski
Comprehensive coding standards and best practices for maintainable, consistent software development across multiple languages and paradigms
react-frontend
by williamzujkowski
React frontend standards covering hooks (useState, useEffect, useContext, custom hooks), state management (Context API, Redux, Zustand), performance optimization (memoization, lazy loading, code splitting), testing with React Testing Library, and accessibility (WCAG 2.1, ARIA) for modern SPAs
data-quality
by williamzujkowski
'Core Principles:'
react-component-generator
by einverne
生成符合项目规范的 React 组件。当用户要求创建组件、新建 React 组件或生成组件文件时使用
shadcn-ui
by einverne
Guide for implementing shadcn/ui - a collection of beautifully-designed, accessible UI components built with Radix UI and Tailwind CSS. Use when building user interfaces, adding UI components, or implementing design systems in React-based applications.
changelog-automation
by vaayne
Automate changelog generation from commits, PRs, and releases following Keep a Changelog format. Use when setting up release workflows, generating release notes, or standardizing commit conventions.
auth-setup
by get-convex
Set up Convex authentication with proper user management, identity mapping, and access control patterns. Use when implementing auth flows.
jspecify-nullness
by alexandru
JSpecify nullness annotations for Java APIs and tooling. Use when adopting or migrating JSpecify annotations, designing null-safe Java signatures and generics, or interpreting tool conformance and Kotlin interop.
cats-mtl-typed-errors
by alexandru
Scala typed errors with Cats MTL Raise/Handle and allow/rescue. Use for designing custom domain error types without EitherT, while keeping Cats Effect and ecosystem composition. Covers Scala 2/3 syntax and IO-only or F[_] usage.
cats-effect-io
by alexandru
Scala functional programming with Cats Effect IO and typeclasses. Use for wrapping side effects, modeling purity, choosing Sync/Async/Temporal/Concurrent, handling blocking I/O, and composing resources, fibers, and concurrency safely.
arrow-typed-errors
by alexandru
Kotlin + Arrow typed error handling using Raise DSL and wrapper types (Either/Option/Ior/Result/nullable), including validation with accumulation, interop with exceptions, and custom error wrappers. Use for designing or refactoring error modeling, converting exception-based flows, building smart constructors, accumulating validation errors, or integrating Outcome/Progress-style wrappers with Arrow.
mcp-builder
by YYH211
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
typescript
by Gentleman-Programming
TypeScript strict patterns and best practices. Trigger: When writing TypeScript code - types, interfaces, generics.
formisch-usage
by open-circle
Form handling with Formisch, the type-safe form library for modern frameworks. Use when the user needs to create forms, handle form state, validate form inputs, or work with Formisch.
mcp-builder
by pacphi
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
ai-sdk
by petekp
'Answer questions about the AI SDK and help build AI-powered features. Use when developers: (1) Ask about AI SDK functions like generateText, streamText, ToolLoopAgent, embed, or tools, (2) Want to build AI agents, chatbots, RAG systems, or text generation features, (3) Have questions about AI providers (OpenAI, Anthropic, Google, etc.), streaming, tool calling, structured output, or embeddings, (4) Use React hooks like useChat or useCompletion. Triggers on: "AI SDK", "Vercel AI SDK", "generateText", "streamText", "add AI to my app", "build an agent", "tool calling", "structured output", "useChat".'
aesthetic-guide
by petekp
Research a UI design aesthetic and produce exhaustive, implementation-ready design guidelines for coding agents. Use when the user names an aesthetic (brutalist, glassmorphism, retro-futuristic, Swiss modernist, Apple HIG, neumorphism, minimalism, cyberpunk, Material Design, art deco, vaporwave, etc.) and wants a complete style guide with exact CSS values, color palettes, component states, animations, and typography â detailed enough for a coding agent to faithfully implement the aesthetic with zero ambiguity.
api-design-patterns
by petekp
Comprehensive API design patterns covering REST, GraphQL, gRPC, versioning, authentication, and modern API best practices