{"type":"user","timestamp":"2024-01-01T10:00:00Z","message":{"content":"hello"},"cwd":"/Users/alice/code/my-app"}
{"type":"assistant","timestamp":"2024-01-01T10:00:05Z","message":{"model":"claude-sonnet-4-20250514","content":[{"type":"text","text":"Hi there"}],"usage":{"input_tokens":10,"output_tokens":5}}}
{"type":"user","timestamp":"2024-01-01T10:01:00Z","message":{"content":"more