Merge branch 'main' into add-tests-resource-error

Author: Kludex

docs/migration.md

@@ -133,7 +133,7 @@ from mcp.shared.exceptions import McpError
 try:
     result = await session.call_tool("my_tool")
 except McpError as e:
-    print(f"Error: {e.message}")
+    print(f"Error: {e.error.message}")
 ```
 
 **After (v2):**

src/mcp/server/experimental/request_context.py

@@ -91,7 +91,7 @@ def validate_task_mode(
             error = ErrorData(code=METHOD_NOT_FOUND, message="This tool does not support task-augmented invocation")
 
         if error is not None and raise_error:
-            raise MCPError(code=METHOD_NOT_FOUND, message=error.message)
+            raise MCPError.from_error_data(error)
 
         return error