---
version: 2
interactions:
- id: 0
  request:
    proto: HTTP/1.1
    proto_major: 1
    proto_minor: 1
    content_length: 281
    host: ""
    body: '{"max_tokens":10000,"messages":[{"content":[{"text":"Hello","cache_control":{"type":"ephemeral"},"type":"text"}],"role":"user"}],"model":"claude-sonnet-4-5-20250929","system":[{"text":"You are a helpful assistant","cache_control":{"type":"ephemeral"},"type":"text"}],"stream":true}'
    headers:
      Accept:
      - application/json
      Content-Type:
      - application/json
      User-Agent:
      - Anthropic/Go 1.12.0
    url: https://api.anthropic.com/v1/messages
    method: POST
  response:
    proto: HTTP/2.0
    proto_major: 2
    proto_minor: 0
    content_length: -1
    body: |+
      event: message_start
      data: {"type":"message_start","message":{"id":"msg_01WGBTmd2Q5E2ajXUoHZYg6K","type":"message","role":"assistant","model":"claude-sonnet-4-5-20250929","content":[],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":13,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":0},"output_tokens":8,"service_tier":"standard"}}      }

      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":"Hello! How can I help you today"}}

      event: content_block_delta
      data: {"type":"content_block_delta","index":0,"delta":{"type":"text_delta","text":"?"}    }

      event: content_block_stop
      data: {"type":"content_block_stop","index":0  }

      event: message_delta
      data: {"type":"message_delta","delta":{"stop_reason":"end_turn","stop_sequence":null},"usage":{"input_tokens":13,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":12}       }

      event: message_stop
      data: {"type":"message_stop"        }

    headers:
      Content-Type:
      - text/event-stream; charset=utf-8
    status: 200 OK
    code: 200
    duration: 1.891647s
- id: 1
  request:
    proto: HTTP/1.1
    proto_major: 1
    proto_minor: 1
    content_length: 621
    host: ""
    body: '{"max_tokens":40,"messages":[{"content":[{"text":"Generate a concise title for the following content:\n\nHello","type":"text"}],"role":"user"}],"model":"claude-sonnet-4-5-20250929","system":[{"text":"you will generate a short title based on the first message a user begins a conversation with\n\n- ensure it is not more than 50 characters long\n- the title should be a summary of the user''s message\n- it should be one line long\n- do not use quotes or colons\n- the entire text you return will be used as the title\n- never return anything that is more than one sentence (one line) long\n","type":"text"}],"stream":true}'
    headers:
      Accept:
      - application/json
      Content-Type:
      - application/json
      User-Agent:
      - Anthropic/Go 1.12.0
    url: https://api.anthropic.com/v1/messages
    method: POST
  response:
    proto: HTTP/2.0
    proto_major: 2
    proto_minor: 0
    content_length: -1
    body: |+
      event: message_start
      data: {"type":"message_start","message":{"id":"msg_01CZb9drep7yMKkc2wzNDt5G","type":"message","role":"assistant","model":"claude-sonnet-4-5-20250929","content":[],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":109,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":0},"output_tokens":10,"service_tier":"standard"}}    }

      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":"Greeting or Starting a Conversation"}           }

      event: content_block_stop
      data: {"type":"content_block_stop","index":0}

      event: message_delta
      data: {"type":"message_delta","delta":{"stop_reason":"end_turn","stop_sequence":null},"usage":{"input_tokens":109,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":10}          }

      event: message_stop
      data: {"type":"message_stop"               }

    headers:
      Content-Type:
      - text/event-stream; charset=utf-8
    status: 200 OK
    code: 200
    duration: 2.547489s