The hook is math
Score the hook before it ships.
Paste the story. Add your candidate hooks. Every entry is anonymous and nothing is stored — you get a 0–12 score across clarity, tension, specificity, stakes, payoff and accuracy.
Try an example:
0 characters — 40 minimum.
Never write one hook. Write three.
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9.5+ Strong · 6.5+ Continue tweaking · below 6.5 Rewrite · max 12 words