{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-08T12:12:07.179231+00:00","duration_seconds":2.610708,"id":1497635,"input_summary":"chars=543 node=683210","metadata":{"llm_candidates":[{"callsign":"W2RBC","confidence":0.78},{"callsign":"KV3A","confidence":0.78}]},"output_summary":"ai_candidates=2 merged=4 calls=W2RBC,KV3A","recording_id":152102,"started_at":"2026-07-08T12:12:04.568523+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":149726}