Technology & Science

I built a 100-point prompt scorer for SUNO AI — 16 checks, open-source on npm

ShaiZadok·Dev.to·2h ago·1 min read

I built a 100-point prompt scorer for SUNO AI — 16 checks, open-source on npm

ShaiZadok·Dev.to·2h ago · Tuesday, April 21, 2026·1 min read

Why deterministic prompt scoring? A few months ago I was using SUNO AI and kept regenerating the same song idea 20-30 times before getting something close to what I imagined. The prompt syntax felt opaque.

Genre close but sub-genre missed. Mood right but vocals wrong. Turns out SUNO's prompt behavior is actually deterministic enough to score.

So I wrote one: suno-prompt-scorer on npm (MIT). Wha

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