{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-18T05:49:41.175672+00:00","duration_seconds":0.553396,"id":1824729,"input_summary":"chars=743 node=683211","metadata":{"llm_candidates":[{"callsign":"KX7VHN","confidence":0.78}]},"output_summary":"ai_candidates=1 merged=1 calls=KX7VHN","recording_id":174170,"started_at":"2026-07-18T05:49:40.622276+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":169597}