Accepted
Phase 5 introduced cross-cutting context propagation for subagents, skills, and audit correlation.
Use a context bus pattern (teaagent/context_bus.py) for scoped run metadata, tool call correlation IDs, and subscriber hooks. Producers emit; consumers subscribe without direct coupling.
- Easier tracing across subagent boundaries
- Requires discipline to avoid bus as global mutable state
- Tests use explicit bus instances for isolation