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 travel questions on Brazil and Rio de Janeiro: safety, getting around, food and beaches, citing the Wikivoyage guides (CC BY-SA). Check current details before you travel.

Answers travel questions on Iceland and Reykjavik: the Ring Road, northern lights, weather and costs, citing the Wikivoyage guides (CC BY-SA). Check current details before you travel.

Answers travel questions on Egypt and Cairo: the Pyramids, getting around, dress and safety, citing the Wikivoyage guides (CC BY-SA). Check current details before you travel.

Answers travel questions on Morocco and Marrakesh: souks, bargaining, getting around and customs, citing the Wikivoyage guides (CC BY-SA). Check current details before you travel.