{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-06-28T17:08:21.910670+00:00","duration_seconds":0.482867,"id":1035640,"input_summary":"chars=489 node=oldsys","metadata":{"llm_candidates":[{"callsign":"KN6UYZ","confidence":0.78}]},"output_summary":"ai_candidates=1 merged=1 calls=KN6UYZ","recording_id":21774,"started_at":"2026-06-28T17:08:21.427803+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":21775}