An intent is a string representation of the abstract meaning of the user sentence, it requires an arbitrary name (that will be likely used in a Rules node to control the chatbot flow) and one or more utterances (a set of all different way of expressing the same actions).

The NLP.js Intent node looks like

The intent can also be defined in a upstream node:

{  
	payload: {    
		intent: 'switch.of',    
		language: 'en',    
		utterances: [      
			'switch of lights',      
			'switch off lights in %room%',      
			'turn off lights in %room%'    
		]  
	}
}

Available parameters for the msg.payload