A bit confused about Alexa, Haaska and Custom Skills

Hi! I have configured Haaska and it works very well, but I wish to take a step further by creating a script with variables, for example “Alexa, turn on the oven for 20 minutes”.
Currently I have the Haaska/AWS connected skill. But I’ve seen, in the documentation, that I can create a custom intent. Which left me a bit confused, because I’m not sure how to proceed.

Do I need to create another skill and then connect in again to my HA installation? Or I can edit my Haaska skilla and configuration to make it works?

Thanks in advance.

Yes, you need a separate custom skill

Bear in mind that you will always have to say “ask Home Assistant” (or whatever your skill is named) before your command or question.

You can use a messy “hack” by exposing a virtual bulb in HA to Alexa . Then you can use the value in the dimmer setting to trigger your automation . So in the Alexa routine you can set the bulb value . The dimmer will give you a value of 1 to 100. Not pretty but it will work