Sometimes in my Skill, after receiving an intent, Alexa will ask back to clarify. For example: "How many do you want to add?" In this case, the answer of the user will likely match only one Intent, (or the StopIntent).
Can I use this knowledge to improve the recognition of the answer?
At this time, there is no way to dynamically alter the list of intents.
In your application, however, you should check to see if you received a valid intent for the current context and provide a suitable error message. I have heard of some people looking at easily confused intents, and making a guess that a similar, contextually correct, intent was chosen.
