FRAMEWORKS & MCP • 186 / 397
Understand the names you will hear when teams build agentic systems.
Runnable
A runnable is LangChain’s composable abstraction for executable pieces that can be connected into pipelines.
Think of it like
Think of Runnable as infrastructure glue: it does not replace the model, but helps applications connect pieces in a repeatable way.
Real life
Software frameworks such as Runnable package common patterns so teams do not rebuild everything from scratch.
SRE lens
Teams may expose prompts, models and parsers as runnable building blocks.
Remember thisA runnable is LangChain’s composable abstraction for executable pieces that can be connected into pipelines.