HTTP 200
content-type: text/event-stream; charset=utf-8

event: message_start
data: {"type":"message_start","message":{"id":"msg_01Qm2vYB8xkN4cH6sGtRpL3J","type":"message","role":"assistant","model":"claude-sonnet-5-5","content":[],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":412,"output_tokens":1}}}

event: content_block_start
data: {"type":"content_block_start","index":0,"content_block":{"type":"text","text":""}}

event: content_block_delta
data: {"type":"content_block_delta","index":0,"delta":{"type":"text_delta","text":"„Hund“"}}

event: error
data: {"type": "error", "error": {"type": "overloaded_error", "message": "Overloaded"}}