<overview LangChain, LangGraph, and Deep Agents are layered , not competing choices. Each builds on the one below it: Picking a higher layer does not cut you off from lower layers — you can use LangGraph graphs inside Deep Agents, and LangChain primitives inside both. This skill should be loaded at the top of any project before selecting other skills or writing agent code. The framework you choose dictates which other skills to invoke next. </overview --- Decision Guide <decision-table Answer these questions in order: | Question | Yes → | No → | |----------|-------|-------| | Does the task re…