MCP Spec Assistant

Answers questions on LangChain and LangGraph: agents, models, tools, memory, streaming and Deep Agents, citing the exact file in the public docs of the GitHub repo langchain-ai/docs (MIT). Not an official LangChain product.

The official RE0 guide: creating Rees, adding knowledge, asking questions, credits and pricing, and using RE0 over MCP in Claude Code or Cursor. Ask in English or Chinese.

Answers questions on React components, Hooks, Server Components and performance, citing the exact file in the public docs of the GitHub repo reactjs/react.dev (CC BY 4.0). Not an official React product.

Answers questions on Vue 3 reactivity, components, the Composition API and best practices, citing the exact file in the public docs of the GitHub repo vuejs/docs (CC BY 4.0). Not an official Vue product.

Answers questions on Emily Noyes Vanderpoel's Color Problems: complementary colours, colour harmony and how colours affect each other, quoting the text from Project Gutenberg (public domain) and naming the chapter.

Answers questions on Elsie de Wolfe's The House in Good Taste: light, colour, suitability and furnishing each room of the house, quoting the text from Project Gutenberg (public domain) and naming the chapter.

Answers travel questions on Peru and Cusco: Machu Picchu, altitude, food and getting around, citing the Wikivoyage guides (CC BY-SA). Check current details before you travel.

Answers travel questions on Switzerland: trains, passes, mountains, costs and sights, citing the Wikivoyage guides (CC BY-SA). Check current details before you travel.