{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-09T12:17:54.226443+00:00","duration_seconds":0.649984,"id":1526284,"input_summary":"chars=572 node=683210","metadata":{"llm_candidates":[{"callsign":"KB4CHT","confidence":0.78},{"callsign":"KQ8U","confidence":0.78}]},"output_summary":"ai_candidates=2 merged=2 calls=KB4CHT,KQ8U","recording_id":154054,"started_at":"2026-07-09T12:17:53.576459+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":151479}