Intent_script reading values

Configuration Voice Assistant
1

I made a custom intent to play spotyfy playlist
basically sending a phrase like “play jazz on bose” or “play smooth jazz on bose”
or anything else, it should trigger the playlist to play
the playlist part is made into a list, so that if i type/say “jazz” o “smooth jazz” the out of the list is always “Jazz”

this is correctly working, if debug my intent (with dev tools) for a phrase like
“play jazz on bose”
i got the following:

intent:
  name: PlayList
slots:
  playlist: jazz
  name: bose
details:
  playlist:
    name: playlist
    value: Jazz
    text: jazz
  name:
    name: name
    value: Bose
    text: bose
targets:
  media_player.soundtouch_30:
    matched: true
match: true
sentence_template: <play> {playlist} [in|on|for] {name} [(<of>|<in>)<area>]
unmatched_slots: {}
source: custom
file: en/spotify.yaml

now in my intent_script i need to execute an action based on the value of playlist (Jazz in this case), but it looks that i can only access
{{ playlist }} and {{ name }}
while i need to access details->playlist->value so that i can set the playlist uri based on this value

for completion this is my intent_script

intent_script:
  Playlist:
    speech:
        text: "OK i'll play {{ playlist }} on {{ name }}"
    action:
        service: spotcast.start
        metadata: {}
        data:
          limit: 20
          force_playback: false
          random_song: false
          repeat: "off"
          shuffle: false
          offset: 0
          ignore_fully_played: false
          uri: spotify:playlist:XXXXXXXXXXXXXXXXX
          device_name: SoundTouch Sala

of which i need to se the uri (using Jazz in my case)

of course i can switch based on {{ playlist }} inside intent_script
but i prefere to normalize the playlist name before getting back to the intent_script

any suggestion?