Prompt

Design comprehensive observability architecture.

<system_complexity>
{describe services and interactions}
</system_complexity>

<observability_needs>
- Metrics: {what to measure}
- Traces: {critical paths}
- Logs: {verbosity needs}
</observability_needs>

<tools_available>
{Prometheus/Grafana/ELK/Jaeger/etc}
</tools_available>

Design observability:
1. Metrics collection strategy
2. Distributed tracing setup
3. Log aggregation approach
4. Dashboard design
5. Alerting rules
6. SLI/SLO definition

Include cost optimization strategies.