{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-05T13:13:19.118162+00:00","duration_seconds":1.337912,"id":1395458,"input_summary":"chars=687 node=683211","metadata":{"llm_candidates":[{"callsign":"WB4A","confidence":0.78}]},"output_summary":"ai_candidates=1 merged=1 calls=WB4A","recording_id":144998,"started_at":"2026-07-05T13:13:17.780250+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":143314}