{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-08T11:37:06.476521+00:00","duration_seconds":1.202648,"id":1496703,"input_summary":"chars=302 node=683210","metadata":{"llm_candidates":[{"callsign":"KB5NJU","confidence":0.78},{"callsign":"KJ5MEL","confidence":0.78}]},"output_summary":"ai_candidates=2 merged=2 calls=KB5NJU,KJ5MEL","recording_id":152023,"started_at":"2026-07-08T11:37:05.273873+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":149647}