Buttons that require a second click “just to be sure”

{
  "input": {
    "prompt": " Close-up illustration of a webpage button labeled “SUBMIT” with a second, faintly offset ghost-button beneath it labeled “SUBMIT (again?)”. A cursor clicks once and a tiny tooltip appears: “Are you sure?” The user’s hand is visible, tense, with a slight shake. Background shows a minimal webpage layout (headline blocks, placeholder images), avoiding recognizable sites."
  }
}