Agent logs had trace_id='no-trace' because the Gradio process
never called seed_trace_id(). The CotJsonFormatter reads trace_id
from ContextVar — without seeding, it defaults to empty string
displayed as 'no-trace'.
Fix:
- app.py: seed_trace_id() on every agent_handler invocation
- run.py: seed_trace_id() on agent startup (for LLM config fetch)
Each Gradio submit gets a fresh trace_id, making agent logs
correlatable with downstream FastAPI calls.
busya
2f238dee13