{"type":"session_meta","payload":{"cwd":"/tmp/project"}}
{"type":"event_msg","payload":{"type":"user_message","message":"Build a parser"}}
{"type":"response","payload":{"usage":{"input_tokens":1212}}}
{"type":"response_item","payload":{"type":"function_call","name":"exec_command","arguments":"{\"command\":\"ls -la\"}"}}