Metrics.md

SentinelAI — Performance & Evaluation Metrics

Drift Detection Metrics

Metric	Description
PSI	Population Stability Index
KS Statistic	Kolmogorov-Smirnov test
Drift Threshold	Configurable alert threshold

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Model Performance

Metric	Value
Precision	TBD
Recall	TBD
ROC-AUC	TBD
F1 Score	TBD

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LLM Monitoring

Metric	Description
Hallucination Score	Confidence-based hallucination probability
Token Usage	Tokens per request
Latency	Response time per inference

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Infrastructure

Metric	Description
P95 Latency	95th percentile response time
Throughput	Requests per second
Cost per 1k requests	Cloud compute estimate

Design Targets (Not Measured)

The following planning values are preserved, but no committed benchmark, test, or workflow artifact generates them. They are not measured performance claims.

Component	Metric	Result
C++ Drift Engine	PSI calculation time	< 2ms
Go Ingestion API	P95 latency	180ms
LLM Guard	Avg summarization time	1.2s
Throughput	Requests/sec	150 RPS
Docker container startup	Cold start	< 3s