Technical articles, tutorials, and insights
How to decompose 'AI responses should be good' into specific metrics. The L1/L2/L3 framework: L1 business outcomes (task completion rate, adoption rate), L2 output quality (accuracy, relevance, completeness), L3 system health (latency, token cost). Focus on metric selection across four common scenarios, and three traps: measuring only L3, using BLEU/ROUGE for semantic quality, and setting thresholds by instinct.