Distributed Tracing Setup Guide

Create a distributed tracing setup for a {{arch_style}} system with {{num_services}} services:
{{service_list}}

Requirements:
- Tracing backend: {{tracing_backend}}
- Framework: {{framework}}
- Sampling strategy: {{sampling_rate}}
- Trace storage: {{storage}}
- Team expertise: {{team_level}}

Provide:
1. Architecture diagram (service spans hierarchy)
2. Instrumentation boilerplate per service type
3. Custom span injection rules ({{business_context}})
4. Sampling & retention policy
5. Debugging workflow (query examples)