Prompt Quality Score Earns a 71 Proof of Usefulness Score by Building a Pre-Flight Scoring API for LLM Prompts
Prompt Quality Score (PQS) grades AI prompts across 8 dimensions before LLM inference. One week after launch: 320+ API calls, 89% of real prompts scoring D or F, first certified partner live, and a 71 Proof of Usefulness score from HackerNoon. The AI 'input quality' problem is real, and PQS named it.
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