{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-09T16:18:34.919131+00:00","duration_seconds":4.550261,"id":1535569,"input_summary":"chars=825 node=683210","metadata":{"llm_candidates":[{"callsign":"KN6WQU","confidence":0.78},{"callsign":"KD3AGN","confidence":0.78}]},"output_summary":"ai_candidates=2 merged=2 calls=KN6WQU,KD3AGN","recording_id":154743,"started_at":"2026-07-09T16:18:30.368870+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":152079}