Module reliability 

Reliability primitives: circuit breaker, instrumented model wrappers with timeout and retry support, and metrics emission.

Structs

CircuitBreakerConfig

Tunable parameters for the circuit breaker.

CircuitBreakerWrapper

Thread-safe circuit breaker that tracks failures and short-circuits calls when a provider is unhealthy.

InstrumentedEmbeddingModel

Wrapper around an EmbeddingModel that adds per-call timeout enforcement, exponential-backoff retries for transient errors, and metrics emission (model_inference.duration_seconds, model_inference.total).

InstrumentedGeneratorModel

Wrapper around a GeneratorModel that adds timeout, retry, and metrics.

InstrumentedRerankerModel

Wrapper around a RerankerModel that adds timeout, retry, and metrics.