What We Learned From Analyzing 28,000 Production AI System Prompts
80% start with "Act as an expert." 62% contain contradictory constraints. 14% emotionally threaten the AI. Here's the data.
Mar 24, 20262 min read8

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80% start with "Act as an expert." 62% contain contradictory constraints. 14% emotionally threaten the AI. Here's the data.

We tested 5 frontier models across 1,080 evaluations. JSON won. Short prompts won. Everything you thought you knew about prompt engineering is wrong.
