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Trigger backend actions based on user interactions in chat.
Actions let the ChatKit SDK frontend trigger streaming responses before a user submits a message and can also trigger side effects outside ChatKit.

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Trigger actions

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Respond to widget interactions

Attach an ActionConfig to supported widget nodes to fire actions. For example, react to a button click: when the user clicks the button, the action payload is sent to your server, where you can update widgets, run reasoning, or stream new thread entries.