{"content":[{"text":"Hello! How can I help you today?","type":"text"}],"id":"msg_5138db68-75c8-4360-8e","model":"claude-sonnet-4-5-20250929","role":"assistant","stop_reason":"","stop_sequence":null,"type":"message","usage":{"cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":313},"cache_creation_input_tokens":313,"cache_read_input_tokens":34,"input_tokens":17,"output_tokens":8}}