fvtt-cthulhu-eternal/module/documents/actor.mjs

export default class CthulhuEternalActor extends Actor {
  
  async _preCreate(data, options, user) {
    await super._preCreate(data, options, user)

    // Configure prototype token settings
    const prototypeToken = {}
    if (this.type === "protagonist") {
      Object.assign(prototypeToken, {
        sight: { enabled: true },
        actorLink: true,
        disposition: CONST.TOKEN_DISPOSITIONS.FRIENDLY,
      })
      this.updateSource({ prototypeToken })
    }
  }

}