feat: Add response api to gen_ai.input.messages and gen_ai.output.messages

logfire/_internal/integrations/llm_providers/anthropic.py

@@ -4,18 +4,27 @@
 from typing import TYPE_CHECKING, Any, cast
 
 import anthropic
-from anthropic.types import Message, TextBlock, TextDelta
+from anthropic.types import Message, TextBlock, TextDelta, ToolUseBlock
 
 from logfire._internal.utils import handle_internal_errors
 
 from .semconv import (
+    INPUT_MESSAGES,
+    INPUT_TOKENS,
     OPERATION_NAME,
+    OUTPUT_MESSAGES,
+    OUTPUT_TOKENS,
     PROVIDER_NAME,
     REQUEST_MAX_TOKENS,
+    REQUEST_MODEL,
     REQUEST_STOP_SEQUENCES,
     REQUEST_TEMPERATURE,
     REQUEST_TOP_K,
     REQUEST_TOP_P,
+    RESPONSE_FINISH_REASONS,
+    RESPONSE_ID,
+    RESPONSE_MODEL,
+    SYSTEM_INSTRUCTIONS,
     TOOL_DEFINITIONS,
 )
 from .types import EndpointConfig, StreamState
@@ -68,9 +77,19 @@ def get_endpoint_config(options: FinalRequestOptions) -> EndpointConfig:
             'request_data': json_data,
             PROVIDER_NAME: 'anthropic',
             OPERATION_NAME: 'chat',
+            REQUEST_MODEL: json_data.get('model'),
         }
         _extract_request_parameters(json_data, span_data)
 
+        # Convert messages to semantic convention format
+        messages: list[dict[str, Any]] = json_data.get('messages', [])
+        system: str | list[dict[str, Any]] | None = json_data.get('system')
+        if messages or system:
+            input_messages, system_instructions = convert_anthropic_messages_to_semconv(messages, system)
+            span_data[INPUT_MESSAGES] = input_messages
+            if system_instructions:
+                span_data[SYSTEM_INSTRUCTIONS] = system_instructions
+
         return EndpointConfig(
             message_template='Message with {request_data[model]!r}',
             span_data=span_data,
@@ -82,12 +101,141 @@ def get_endpoint_config(options: FinalRequestOptions) -> EndpointConfig:
             'url': url,
             PROVIDER_NAME: 'anthropic',
         }
+        if 'model' in json_data:
+            span_data[REQUEST_MODEL] = json_data['model']
         return EndpointConfig(
             message_template='Anthropic API call to {url!r}',
             span_data=span_data,
         )
 
 
+def convert_anthropic_messages_to_semconv(
+    messages: list[dict[str, Any]],
+    system: str | list[dict[str, Any]] | None = None,
+) -> tuple[list[dict[str, Any]], list[dict[str, Any]]]:
+    """Convert Anthropic messages format to OTel Gen AI Semantic Convention format.
+
+    Returns a tuple of (input_messages, system_instructions).
+    """
+    input_messages: list[dict[str, Any]] = []
+    system_instructions: list[dict[str, Any]] = []
+
+    # Handle system parameter (Anthropic uses a separate 'system' parameter)
+    if system:
+        if isinstance(system, str):
+            system_instructions.append({'type': 'text', 'content': system})
+        else:  # pragma: no cover
+            for part in system:
+                if part.get('type') == 'text':
+                    system_instructions.append({'type': 'text', 'content': part.get('text', '')})
+                else:
+                    system_instructions.append(part)
+
+    for msg in messages:
+        role = msg.get('role', 'unknown')
+        content = msg.get('content')
+
+        parts: list[dict[str, Any]] = []
+
+        if content is not None:
+            if isinstance(content, str):
+                parts.append({'type': 'text', 'content': content})
+            elif isinstance(content, list):
+                for part in cast('list[dict[str, Any] | str]', content):
+                    parts.append(_convert_anthropic_content_part(part))
+
+        input_messages.append(
+            {
+                'role': role,
+                'parts': parts,
+            }
+        )
+
+    return input_messages, system_instructions
+
+
+def _convert_anthropic_content_part(part: dict[str, Any] | str) -> dict[str, Any]:
+    """Convert a single Anthropic content part to semconv format."""
+    if isinstance(part, str):  # pragma: no cover
+        return {'type': 'text', 'content': part}
+
+    part_type = part.get('type', 'text')
+    if part_type == 'text':
+        return {'type': 'text', 'content': part.get('text', '')}
+    elif part_type == 'image':  # pragma: no cover
+        source = part.get('source', {})
+        if source.get('type') == 'base64':
+            return {
+                'type': 'blob',
+                'modality': 'image',
+                'content': source.get('data', ''),
+                'media_type': source.get('media_type'),
+            }
+        elif source.get('type') == 'url':
+            return {'type': 'uri', 'modality': 'image', 'uri': source.get('url', '')}
+        else:
+            return {'type': 'image', **part}
+    elif part_type == 'tool_use':
+        return {
+            'type': 'tool_call',
+            'id': part.get('id'),
+            'name': part.get('name'),
+            'arguments': part.get('input'),
+        }
+    elif part_type == 'tool_result':  # pragma: no cover
+        result_content = part.get('content')
+        if isinstance(result_content, list):
+            # Extract text from tool result content
+            text_parts: list[str] = []
+            for p in cast('list[dict[str, Any] | str]', result_content):
+                if isinstance(p, dict) and p.get('type') == 'text':
+                    text_parts.append(str(p.get('text', '')))
+                elif isinstance(p, str):
+                    text_parts.append(p)
+            result_text = ' '.join(text_parts)
+        else:
+            result_text = str(result_content) if result_content else ''
+        return {
+            'type': 'tool_call_response',
+            'id': part.get('tool_use_id'),
+            'response': result_text,
+        }
+    else:  # pragma: no cover
+        # Return as generic part
+        return {'type': part_type, **{k: v for k, v in part.items() if k != 'type'}}
+
+
+def convert_anthropic_response_to_semconv(message: Message) -> dict[str, Any]:
+    """Convert an Anthropic response message to OTel Gen AI Semantic Convention format."""
+    parts: list[dict[str, Any]] = []
+
+    for block in message.content:
+        if isinstance(block, TextBlock):
+            parts.append({'type': 'text', 'content': block.text})
+        elif isinstance(block, ToolUseBlock):
+            parts.append(
+                {
+                    'type': 'tool_call',
+                    'id': block.id,
+                    'name': block.name,
+                    'arguments': block.input,
+                }
+            )
+        elif hasattr(block, 'type'):  # pragma: no cover
+            # Handle other block types generically
+            block_dict = block.model_dump() if hasattr(block, 'model_dump') else dict(block)
+            parts.append(_convert_anthropic_content_part(block_dict))
+
+    result: dict[str, Any] = {
+        'role': message.role,
+        'parts': parts,
+    }
+    if message.stop_reason:
+        result['finish_reason'] = message.stop_reason
+
+    return result
+
+
 def content_from_messages(chunk: anthropic.types.MessageStreamEvent) -> str | None:
     if hasattr(chunk, 'content_block'):
         return chunk.content_block.text if isinstance(chunk.content_block, TextBlock) else None  # type: ignore
@@ -113,6 +261,7 @@ def get_response_data(self) -> Any:
 def on_response(response: ResponseT, span: LogfireSpan) -> ResponseT:
     """Updates the span based on the type of response."""
     if isinstance(response, Message):  # pragma: no branch
+        # Keep response_data for backward compatibility
         message: dict[str, Any] = {'role': 'assistant'}
         for block in response.content:
             if block.type == 'text':
@@ -128,6 +277,24 @@ def on_response(response: ResponseT, span: LogfireSpan) -> ResponseT:
                     }
                 )
         span.set_attribute('response_data', {'message': message, 'usage': response.usage})
+
+        # Add semantic convention attributes
+        span.set_attribute(RESPONSE_MODEL, response.model)
+        span.set_attribute(RESPONSE_ID, response.id)
+
+        # Add token usage
+        if response.usage:
+            span.set_attribute(INPUT_TOKENS, response.usage.input_tokens)
+            span.set_attribute(OUTPUT_TOKENS, response.usage.output_tokens)
+
+        # Add finish reason
+        if response.stop_reason:
+            span.set_attribute(RESPONSE_FINISH_REASONS, [response.stop_reason])
+
+        # Add semantic convention output messages
+        output_message = convert_anthropic_response_to_semconv(response)
+        span.set_attribute(OUTPUT_MESSAGES, [output_message])
+
     return response