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 application security from the OWASP Cheat Sheet Series: authentication, sessions, XSS, injection, secrets and more, citing the exact cheat sheet in the GitHub repo OWASP/CheatSheetSeries (CC BY-SA 4.0). Not official.

Answers questions on the GOV.UK Design System: components, patterns, styles and accessibility for public services, citing the exact page in the GitHub repo alphagov/govuk-design-system (MIT, OGL). Not an official GOV.UK product.

Answers questions on Coding Interview University, John Washam's study plan for software engineering interviews: topics, order, resources and practice, citing the GitHub repo jwasham/coding-interview-university (CC BY-SA 4.0).

Answers questions on prompting large language models: context, examples, structured output, tools and limitations, citing Brex's open Prompt Engineering Guide in the GitHub repo brexhq/prompt-engineering (MIT). Not an official Brex product.