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{
  "Reels": {
    "hook_window_seconds": 3,
    "optimal_script_length_words": 120,
    "max_script_length_words": 180,
    "hook_length_words": 15,
    "cta_position": "last_10_percent",
    "optimal_sentences_per_section": {"hook": 2, "body": 6, "cta": 1},
    "pacing_norm": "fast",
    "avg_retention_curve": "steep_drop_at_3s_then_gradual",
    "penalty_for_slow_start": true,
    "reward_for_pattern_interrupt": true,
    "notes": "Fastest drop-off. Hook must deliver value in 3 seconds. No warmup allowed."
  },
  "Shorts": {
    "hook_window_seconds": 2,
    "optimal_script_length_words": 80,
    "max_script_length_words": 120,
    "hook_length_words": 10,
    "cta_position": "last_5_percent",
    "optimal_sentences_per_section": {"hook": 1, "body": 4, "cta": 1},
    "pacing_norm": "very_fast",
    "avg_retention_curve": "steep_drop_at_2s",
    "penalty_for_slow_start": true,
    "reward_for_pattern_interrupt": true,
    "notes": "Shortest attention window. One-sentence hook maximum. Body must be dense."
  },
  "Feed": {
    "hook_window_seconds": 5,
    "optimal_script_length_words": 200,
    "max_script_length_words": 300,
    "hook_length_words": 25,
    "cta_position": "last_15_percent",
    "optimal_sentences_per_section": {"hook": 3, "body": 10, "cta": 2},
    "pacing_norm": "moderate",
    "avg_retention_curve": "gradual_decline",
    "penalty_for_slow_start": false,
    "reward_for_pattern_interrupt": false,
    "notes": "Longer attention window. Can build up to the hook. More space for nuance."
  },
  "TikTok": {
    "hook_window_seconds": 2,
    "optimal_script_length_words": 100,
    "max_script_length_words": 150,
    "hook_length_words": 12,
    "cta_position": "last_8_percent",
    "optimal_sentences_per_section": {"hook": 1, "body": 5, "cta": 1},
    "pacing_norm": "very_fast",
    "avg_retention_curve": "steep_drop_at_2s_recovery_possible",
    "penalty_for_slow_start": true,
    "reward_for_pattern_interrupt": true,
    "notes": "Similar to Shorts but with stronger recovery potential mid-video."
  }
}