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How do you implement a supervisor agent in LangGraph?
What are the main multi-agent patterns in LangGraph?
How do you implement a tool that modifies graph state directly?
How do you bind tools to an LLM in LangGraph?
What is create_react_agent and when should you use it vs building a custom graph?
How do you implement parallel tool execution in LangGraph?
How do you handle tool errors in LangGraph?
What is a ToolNode and how does it work?
What is the difference between interrupt_before and interrupt_after?
How do you resume a graph after a human-in-the-loop interrupt?
What is the interrupt() function and how does it differ from compile-time interrupts?
How do you implement human-in-the-loop in LangGraph?
How do you implement cross-thread memory (shared state across conversations)?
What is checkpoint_ns and when does it matter?
How do you update state manually between graph invocations?
How does time-travel work in LangGraph?
Explain the concept of checkpoints, threads, and runs in LangGraph.
What is a thread_id and how does it relate to checkpointing?
What checkpointer backends does LangGraph support?
What is a checkpointer in LangGraph and why is it critical?
What is a conditional edge and how do you implement one?
How does LangGraph handle cycles, and why are they useful?
What is the difference between invoke, stream and astream on a compiled graph?
What is graph compilation and what does it do?
How do you add nodes and edges to a StateGraph?
What is the role of START and END nodes in LangGraph?
What are reducers in LangGraph and why are they important?
Explain the concept of "state" in LangGraph. How is it managed?
What is a StateGraph and how is it different from a MessageGraph?
What is LangGraph and how does it differ from LangChain's LCEL?
How do you implement unit tests for LangChain chains?
Write a function to optimize LangChain memory usage.
How do you document LangChain applications?
What is the role of environment configuration in LangChain?
How do you handle large-scale data in LangChain applications?
What is caching in LangChain, and how is it used?
How do you ensure reproducibility in LangChain applications?
What are best practices for structuring LangChain code?
How do you implement interactive visualizations for LangChain outputs?
Write a function to generate a LangChain workflow diagram.
How do you visualize LangChain error rates in production?
Write a function to visualize LangChain chain latency.
How do you implement a real-time visualization for LangChain inference?
Write a function to visualize LangChain vector store embeddings.
How do you visualize LangChain agent reasoning steps?
Implement a function to plot LangChain evaluation trends.
How do you visualize LangChain retrieval results?
Write a function to visualize LangChain memory growth.
How do you implement a dashboard for LangChain metrics?
Write a function to visualize LangChain chain dependencies.