> For the complete documentation index, see [llms.txt](https://docs.contextual.io/documentation-and-resources/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.contextual.io/documentation-and-resources/components-and-data/agents/using-agents-in-flows.md).
# Using Agents in Flows
While agents are the container for the execution of a flow, a flow can also send messages/events to another agent for processing.
This is done by using the "Send To Agent" node in a flow.
The send to agent node can be found in the "request" category in the palette in the flow editor.
Using this node allows a flow to effectively route messages to different agents based on data type as shown in the flow below.
The Send To Agent node is very easy to use. Simply select the agent from the list "Agent Id" property and provide the optional key and required payload properties.
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# Agent Instructions
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