FRAMEWORKS & MCP • 185 / 397
Understand the names you will hear when teams build agentic systems.
Chain
A chain is a sequence of model or processing steps connected so one result feeds the next.
Think of it like
Think of Chain as infrastructure glue: it does not replace the model, but helps applications connect pieces in a repeatable way.
Real life
Software frameworks such as Chain package common patterns so teams do not rebuild everything from scratch.
SRE lens
Retrieve documents → format context → call model → parse output.
Remember thisA chain is a sequence of model or processing steps connected so one result feeds the next.