{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-13T00:56:58.114655+00:00","duration_seconds":1.474469,"id":1636937,"input_summary":"chars=406 node=683211","metadata":{"llm_candidates":[{"callsign":"KQ4L4C","confidence":0.78},{"callsign":"K4L4C","confidence":0.78}]},"output_summary":"ai_candidates=2 merged=7 calls=KQ4L4C,K4L4C","recording_id":161558,"started_at":"2026-07-13T00:56:56.640186+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":158364}