total_cost の名前変更に対応

Author: 106-

src/claude_code_sdk/_internal/client.py

@@ -86,13 +86,12 @@ def _parse_message(self, data: dict[str, Any]) -> Message | None:
                 # Map total_cost to total_cost_usd for consistency
                 return ResultMessage(
                     subtype=data["subtype"],
-                    cost_usd=data["cost_usd"],
                     duration_ms=data["duration_ms"],
                     duration_api_ms=data["duration_api_ms"],
                     is_error=data["is_error"],
                     num_turns=data["num_turns"],
                     session_id=data["session_id"],
-                    total_cost_usd=data["total_cost"],
+                    total_cost_usd=data["total_cost_usd"],
                     usage=data.get("usage"),
                     result=data.get("result"),
                 )

src/claude_code_sdk/types.py

@@ -75,7 +75,6 @@ class ResultMessage:
     """Result message with cost and usage information."""
 
     subtype: str
-    cost_usd: float
     duration_ms: int
     duration_api_ms: int
     is_error: bool