{
  "planning": [
    "The source is a website with cited evidence or a user brief.",
    "The song uses one buyer pain or benefit.",
    "Every number in the lyrics appears in selected evidence.",
    "The hook is one line and 12 words or fewer.",
    "The timing sections sum to the requested duration."
  ],
  "creative": [
    "A stranger can tell what the brand helps with.",
    "The hook is memorable after one listen.",
    "Lines use short, common words and compatible rhythms.",
    "The brand name sounds natural rather than pasted onto the end.",
    "The song does not imitate or name a living artist."
  ],
  "delivery": [
    "The MP3 exists and is not empty.",
    "The duration is within 1.5 seconds when ffprobe is available.",
    "The cover exists and uses the brand name and hook.",
    "The user listens before final approval.",
    "No retry or provider fallback happens automatically."
  ]
}