Custom GPT builder – internal instructions (github.com)

So this is how https://chat.openai.com/gpts/editor is currently configured.

Notes:

  DO NOT camel case; Use spaces for compound words; spaces are accepted.
  DO NOT USE CAMEL CASE.

Seems even openai needs some strong words for it's GPT to behave ;)

  namespace gizmo_editor {
    type update_behavior = (_: {
      welcome_message?: string,

Interesting I didn't know you can set a welcome message (which is different to the 4+x suggested prompts)