{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-12T15:28:31.781249+00:00","duration_seconds":2.077398,"id":1623267,"input_summary":"chars=532 node=683210","metadata":{"llm_candidates":[{"callsign":"WX9ITX","confidence":0.78},{"callsign":"KT6CDQ","confidence":0.78}]},"output_summary":"ai_candidates=2 merged=3 calls=WX9ITX,KT6CDQ","recording_id":160670,"started_at":"2026-07-12T15:28:29.703851+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":157514}