{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-08T13:13:38.217359+00:00","duration_seconds":1.374359,"id":1499953,"input_summary":"chars=668 node=683210","metadata":{"llm_candidates":[{"callsign":"K4KU","confidence":0.78}]},"output_summary":"ai_candidates=1 merged=1 calls=K4KU","recording_id":152257,"started_at":"2026-07-08T13:13:36.843000+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":149873}