.NET Logging And Exceptions

Logging Decisions

• Log a domain-relevant failure or skip at the closest boundary that both detects or classifies it and owns the operational response.
• Log a failure once. Do not log and rethrow when an outer boundary will record the same failure.
• Do not hide the logging decision inside retrieval, mapping, factory, or convenience helpers.
• Extract an instance collaborator only for redaction, normalization, formatting, mapping, or classification.
• Keep the decision whether and at what level to log at the detection site.

Log Safety