- cache: evict expired first, document Has/Capacity, ExpireLoop ticker, factory docs - circuit: document WithMetrics vs WithMetricsRegistry - logto: nil-safe logger, ErrInvalidConfig for empty JWKSURI - logging: NewHumanLogger doc, LogWithFieldsSugared, trace correlation note - rabbitmq: Option/WithLogger at construction - ratelimiting: SlidingWindow embedding comment - retries: MaxAttempts >= 1 validation, RetryPrometheusMetrics - golangci-lint: enable contextcheck