React Advanced
Modern React 19 platform features and rendering architecture - the React Compiler (auto-memoization) and how it changes memoization guidance, concurrent rendering (useTransition/useDeferredValue/Suspense), the use() hook, Actions (useActionState/useOptimistic/useFormStatus), ref-as-prop and Context-as-provider changes, compound components, context selectors, error boundaries, portals, virtualizat…
Phoenix Api Channels
Phoenix controllers, JSON APIs, Channels, and Presence on the BEAM
Example Framework Skill
Example of a properly self-contained skill following all best practices
Local Llm Ops
Local LLM operations with Ollama on Apple Silicon, including setup, model pulls, chat launchers, benchmarks, and diagnostics.
Validated Handler
Type-safe API route handler with automatic Zod validation for Next.js App Router...
Ecto Patterns
Ecto patterns for Phoenix/Elixir apps. Covers schemas, changesets, migrations, queries, Ecto.Multi, transactions, constraints, associations, pagination, tenant partitioning, performance, and testing.
Espocrm
Comprehensive guide for developing on EspoCRM - metadata-driven CRM with service layer architecture
Phoenix Liveview
Phoenix Framework with LiveView on the BEAM
Golang Testing Strategies
Comprehensive Go testing strategies including table-driven tests, testify assertions, gomock interface mocking, benchmark testing, and CI/CD integration
Vue
Vue 3 - Progressive JavaScript framework with Composition API, reactivity system, single-file components, Vite integration, TypeScript support
Spring Boot
Spring Boot 3.x - Java framework for production-ready applications with dependency injection, REST APIs, data access, security, and actuator monitoring
Golang Http Frameworks
Go HTTP API development with net/http, Chi, Gin, Echo, and Fiber frameworks
Golang Concurrency Patterns
Go concurrency patterns for production services: context cancellation, errgroup, worker pools, bounded parallelism, fan-in/fan-out, and common race/deadlock pitfalls
Golang Cli Cobra Viper
Building production-quality CLI tools with Cobra command framework and Viper configuration management
Langchain
LangChain LLM application framework with chains, agents, RAG, and memory for building AI-powered applications
Biome
Biome - Fast all-in-one toolchain for web projects (linter + formatter in Rust, 100x faster than ESLint)
Hono Rpc
Hono RPC - end-to-end type-safe API client generation with hc client and TypeScript inference
Golang Observability Opentelemetry
Instrumenting Go applications with OpenTelemetry for distributed tracing, Prometheus for metrics, and structured logging with slog
Nextjs Core
Core Next.js patterns for App Router development including Server Components, Server Actions, route handlers, data fetching, and caching strategies
Trusty Tools
Unified Rust workspace for the trusty-* AI developer-tooling ecosystem: hybrid code search, memory palace, code analysis, PR review, and the MPM multi-agent platform — MCP servers, daemons & CLIs.
Cypress
Cypress end-to-end and component testing patterns for web apps: reliable selectors, stable waits, network stubbing, auth handling, CI parallelization, and flake reduction
React Hooks Composition
Advanced React hooks composition patterns - SWR integration, debounced search, memoized contexts, state machines, and performance optimization
Hono Middleware
Hono middleware patterns - creation, composition, built-in middleware, and execution order for web applications
Mcp Skillset
Dynamic RAG-powered skills service for code assistants via MCP - Vector + Knowledge Graph hybrid search for intelligent skill discovery
Svelte5 Runes Static
Svelte 5 runes + SvelteKit adapter-static (SSG/SSR) patterns for hydration-safe state, store bridges, and reactivity that survives prerendering
Hono Testing
Hono testing patterns - app.request(), test client, mocking environment, and integration testing strategies
Vite
Vite lightning-fast build tool with instant HMR, ESM-first architecture, and zero-config setup for modern web development
Phoenix Ops
Phoenix operations and deployment: releases, runtime configuration, clustering, libcluster, telemetry/logging, secrets, assets, background jobs, and production hardening on the BEAM.
Flexlayout React
FlexLayout for React - Advanced docking layout manager with drag-and-drop, tabs, splitters, and complex window management
Anthropic
Official Anthropic SDK for Claude AI with chat, streaming, function calling, and vision capabilities
React Core
General React fundamentals - components and JSX, props and state, the core hooks (useState/useEffect/useRef/useMemo/useCallback/useContext), composition, conditional and list rendering, and controlled inputs. The canonical "depends on React" reference.
Langgraph
LangGraph framework for building stateful, multi-agent AI applications with cyclical workflows, human-in-the-loop patterns, and persistent checkpointing.
Hono Jsx
Hono JSX - server-side rendering, streaming, async components, and HTML generation patterns
Mongodb
MongoDB - NoSQL document database with flexible schema design, aggregation pipelines, indexing strategies, and Spring Data integration
Nextjs
Next.js environment variable management with file precedence, variable types, and deployment configurations. Use when configuring Next.js applications, managing environment-specific settings, or deploying to Vercel/Railway/Heroku.
Vector Search Workflows
Vector search indexing and querying workflows using MCP Vector Search, including setup, reindexing, auto-index strategies, and MCP integration.
Hono Validation
Hono request validation with Zod, TypeBox, Valibot - type-safe input validation for JSON, forms, query params, and headers
Svelte
Svelte 5 - Reactive UI framework with compiler magic, Runes API, SvelteKit full-stack framework, SSR/SSG, minimal JavaScript
Playwright
Playwright modern end-to-end testing framework with cross-browser automation, auto-wait, and built-in test runner
Hono Core
Hono ultrafast web framework fundamentals - routing, context, handlers, and response patterns for multi-runtime deployment
Hono Cloudflare
Hono on Cloudflare Workers - bindings, KV, D1, R2, Durable Objects, and edge deployment patterns
Sveltekit
SvelteKit - Full-stack Svelte framework with file-based routing, SSR/SSG, form actions, and adapters for deployment
Dspy
DSPy declarative framework for automatic prompt optimization treating prompts as code with systematic evaluation and compilers
Session Compression
AI session compression techniques for managing multi-turn conversations efficiently through summarization, embedding-based retrieval, and intelligent context management.
Py Mcp Installer Service
Universal MCP server installer for AI coding tools (Claude Code, Cursor, Windsurf, etc.)
Bad Example Skill
ANTI-PATTERN - Example showing violations of self-containment (DO NOT COPY)
React State Machine
Building reusable React state machine skills with XState v5 and the actor model
Golang Grpc
Production gRPC in Go: protobuf layout, codegen, interceptors, deadlines, error codes, streaming, health checks, TLS, and testing with bufconn
Express Production
Production-ready Express.js development covering middleware architecture, error handling, security hardening, testing strategies, and deployment patterns
Mcp Browser
MCP server for browser automation with Chrome extension. 5 MCP tools for DOM interaction, console capture, content extraction, screenshots. Optimized for Claude Code and other agentic coding tools.
Openrouter
OpenRouter unified AI API - Access 200+ LLMs through single interface with intelligent routing, streaming, cost optimization, and model fallbacks
Golang Database Patterns
Go database integration patterns using sqlx, pgx, and migration tools like golang-migrate
Mcp
MCP (Model Context Protocol) - Build AI-native servers with tools, resources, and prompts. TypeScript/Python SDKs for Claude Desktop integration.
Nextjs V16
Next.js 16 migration guide (async request APIs, "use cache", Turbopack)