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Overview
What belongs in this track once it's written.

Step 5 of the AI Engineer roadmap: the frameworks used to build LLM applications, plus the framework-agnostic patterns interviewers actually probe (why this framework, when to use it, its limits, how you'd run it in production).

  • LangChain
  • LangGraph
  • LlamaIndex
  • Tool calling
  • Structured outputs
  • Memory (short-term, long-term, and framework-managed)
  • What happens when the agent selects the wrong tool? (detection, recovery, guardrails)
MCP (Model Context Protocol) has its own dedicated track, see that section instead of duplicating it here.
Fill this page in question-by-question the same way the other tracks are written, then this callout can go.