{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-10T12:52:43.949915+00:00","duration_seconds":1.291281,"id":1560585,"input_summary":"chars=538 node=683210","metadata":{"llm_candidates":[{"callsign":"AB4KT","confidence":0.78},{"callsign":"NW3U","confidence":0.78}]},"output_summary":"ai_candidates=2 merged=3 calls=AB4KT,NW3U","recording_id":156358,"started_at":"2026-07-10T12:52:42.658634+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":153617}