# Phase 12 Metrics

APT detection is highly imbalanced. Accuracy is not sufficient.

## Required Metrics

- AUPRC;
- AUROC;
- Macro-F1;
- Precision@K;
- Recall@K;
- FPR at fixed recall;
- attack-case recall;
- process-level recall;
- event-level recall;
- detection delay;
- token length;
- inference cost;
- prompt construction time;
- summary cache hit rate;
- evidence path hit rate;
- false positive and false negative case analysis.

## Reporting Layers

Reports must distinguish:

- candidate generation recall;
- final classification performance on candidates;
- end-to-end performance.

AUPRC is a primary metric.