FRAMEWORKS & MCP • 184 / 397
Understand the names you will hear when teams build agentic systems.
LangChain
LangChain is a framework for connecting models with prompts, tools, retrieval, data and application logic.
Think of it like
Think of LangChain as infrastructure glue: it does not replace the model, but helps applications connect pieces in a repeatable way.
Real life
Software frameworks such as LangChain package common patterns so teams do not rebuild everything from scratch.
SRE lens
An SRE should know it is application glue, not the LLM itself.
Remember thisLangChain is a framework for connecting models with prompts, tools, retrieval, data and application logic.