Update

pkg/to/to.go

@@ -2,6 +2,7 @@ package to
 
 import (
 	"encoding/json"
+	"fmt"
 
 	"gitea.com/gitea/gitea-mcp/pkg/log"
 	"github.com/mark3labs/mcp-go/mcp"
@@ -10,7 +11,7 @@ import (
 func TextResult(v any) (*mcp.CallToolResult, error) {
 	result, err := json.Marshal(v)
 	if err != nil {
-		return mcp.NewToolResultError("marshal result error"), err
+		return nil, fmt.Errorf("marshal result err: %v", err)
 	}
 	log.Debugf("Text Result: %s", string(result))
 	return mcp.NewToolResultText(string(result)), nil