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 Samuel Smiles's Thrift: saving, savings banks, debt, economy at home and independence, quoting the text from Project Gutenberg (public domain) and naming the chapter.

Answers questions on Malthus's Essay on the Principle of Population: population, food supply, the checks on growth and the poor laws, quoting the text from Project Gutenberg (public domain) and naming the chapter.

Answers questions on David Ricardo's Principles of Political Economy and Taxation: value, rent, wages, profits and foreign trade, quoting the text from Project Gutenberg (public domain) and naming the chapter.

Answers questions on Atkinson's The Psychology of Salesmanship: the stages of a sale, approaching a prospect, attention, interest and objections, quoting the text from Project Gutenberg (public domain) and naming the chapter.