{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-08T12:45:31.199425+00:00","duration_seconds":3.194188,"id":1498601,"input_summary":"chars=624 node=683210","metadata":{"llm_candidates":[{"callsign":"WR4ABC","confidence":0.78}]},"output_summary":"ai_candidates=1 merged=3 calls=WR4ABC","recording_id":152160,"started_at":"2026-07-08T12:45:28.005237+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":149781}