Backend Structured Logging

Purpose

Design structured JSON logging with consistent schema, context propagation, and sampling.

Agent Protocol

Trigger

Exact user phrases: "structured logging", "JSON logging", "log format", "logging best practice", "log levels", "distributed tracing", "log correlation", "structured log", "logging library", "log aggregation", "log output", "log schema", "correlation ID".

Input Context

Before activating, verify:

• Logging framework (Winston/Pino/Serilog/Log4j/logrus/zerolog)
• Log aggregation system (Elasticsearch/Loki/CloudWatch/Datadog)
• Compliance requirements (audit log retention, PII handling, access logs)

Output Artifact

Logging schema and configuration as formatted text.